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Merge pull request #1191 from haukepetersen/board_stm32f4discovery

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board: Initial import of stm32f4discovery board
This commit is contained in:
Hauke Petersen 2014-07-16 18:24:56 +02:00
commit 86eb5c420e
41 changed files with 15161 additions and 8 deletions
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boards/stm32f4discovery/Makefile Normal file
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# tell the Makefile.base which module to build
MODULE = $(BOARD)_base
include $(RIOTBASE)/Makefile.base

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boards/stm32f4discovery/Makefile.include Normal file
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# define the cpu used by the stm32f4-discovery board
export CPU = stm32f4
export CPU_MODEL = stm32f407vg
#define the default port depending on the host OS
OS := $(shell uname)
ifeq ($(OS),Linux)
PORT ?= /dev/ttyUSB0
else ifeq ($(OS),Darwin)
PORT ?= $(shell ls -1 /dev/tty.SLAB_USBtoUART* | head -n 1)
else
$(info CAUTION: No flash tool for your host system found!)
# TODO: add support for windows as host platform
endif
export PORT
# define tools used for building the project
export PREFIX = arm-none-eabi-
export CC = $(PREFIX)gcc
export AR = $(PREFIX)ar
export AS = $(PREFIX)as
export LINK = $(PREFIX)gcc
export SIZE = $(PREFIX)size
export OBJCOPY = $(PREFIX)objcopy
export TERMPROG = $(RIOTBASE)/dist/tools/pyterm/pyterm.py
export FLASHER = st-flash
export DEBUGGER = $(RIOTBOARD)/$(BOARD)/dist/debug.sh
# define build specific options
CPU_USAGE = -mcpu=cortex-m4
FPU_USAGE = -mfloat-abi=hard -mfpu=fpv4-sp-d16
export CFLAGS += -ggdb -g3 -std=gnu99 -Os -Wall -Wstrict-prototypes $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -mthumb -mthumb-interwork -nostartfiles
export CFLAGS += -ffunction-sections -fdata-sections -fno-builtin
export ASFLAGS += -ggdb -g3 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian
export LINKFLAGS += -g3 -ggdb -std=gnu99 $(CPU_USAGE) $(FPU_USAGE) -mlittle-endian -static -lgcc -mthumb -mthumb-interwork -nostartfiles
export LINKFLAGS += -T$(LINKERSCRIPT)
export OFLAGS = -O binary
export FFLAGS = write bin/$(BOARD)/$(APPLICATION).hex 0x8000000
export DEBUGGER_FLAGS = $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(BINDIR)/$(APPLICATION).elf
# use newLib nano-specs if available
ifeq ($(shell $(LINK) -specs=nano.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
export LINKFLAGS += -specs=nano.specs -lc -lnosys
endif
# export board specific includes to the global includes-listing
export INCLUDES += -I$(RIOTBOARD)/$(BOARD)/include

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boards/stm32f4discovery/board.c Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup board_stm32f4discovery
* @{
*
* @file
* @brief Board specific implementations for the STM32F4Discovery evaluation board
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include "board.h"
static void leds_init(void);
void board_init(void)
{
/* initialize the boards LEDs, this is done first for debugging purposes */
leds_init();
/* initialize the CPU */
cpu_init();
}
/**
* @brief Initialize the boards on-board LEDs (LD3 and LD4)
*
* The LED initialization is hard-coded in this function. As the LEDs are soldered
* onto the board they are fixed to their CPU pins.
*
* The LEDs are connected to the following pins:
* - LD3: PD13
* - LD4: PD12
* - LD5: PD14
* - LD6: PD15
*/
static void leds_init(void)
{
/* enable clock for port GPIOD */
RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
/* configure pins as general outputs */
LED_PORT->MODER &= ~(0xff000000);
LED_PORT->MODER |= 0x55000000;
/* set output speed high-speed */
LED_PORT->OSPEEDR |= 0xff000000;
/* set output type to push-pull */
LED_PORT->OTYPER &= ~(0xf000);
/* disable pull resistors */
LED_PORT->PUPDR &= ~(0xff000000);
/* turn all LEDs off */
LED_PORT->BSRRH = 0xf000;
}

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boards/stm32f4discovery/dist/debug.sh vendored Executable file
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#!/bin/sh
echo "Debugging $1"
arm-none-eabi-gdb -tui -command=$1 $2

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boards/stm32f4discovery/dist/gdb.conf vendored Normal file
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tar extended-remote :4242

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boards/stm32f4discovery/include/board.h Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @defgroup board_stm32f4discovery STM32F4Discovery
* @ingroup boards
* @brief Board specific files for the STM32F4Discovery board
* @{
*
* @file
* @brief Board specific definitions for the STM32F4Discovery evaluation board
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*/
#ifndef __BOARD_H
#define __BOARD_H
#include "cpu.h"
#include "periph_conf.h"
/**
* Define the nominal CPU core clock in this board
*/
#define F_CPU CLOCK_CORECLOCK
/**
* @name Assign the hardware timer
*/
#define HW_TIMER TIMER_0
/**
* @name Define UART device and baudrate for stdio
* @{
*/
#define STDIO UART_0
#define STDIO_BAUDRATE (115200U)
/** @} */
/**
* @name LED pin definitions
* @{
*/
#define LED_PORT GPIOD
#define LD3_PIN (1 << 13)
#define LD4_PIN (1 << 12)
#define LD5_PIN (1 << 14)
#define LD6_PIN (1 << 15)
/** @} */
/**
* @name Macros for controlling the on-board LEDs.
* @{
*/
#define LD3_ON (LED_PORT->BSRRL = LD3_PIN)
#define LD3_OFF (LED_PORT->BSRRH = LD3_PIN)
#define LD3_TOGGLE (LED_PORT->ODR ^= LD3_PIN)
#define LD4_ON (LED_PORT->BSRRL = LD4_PIN)
#define LD4_OFF (LED_PORT->BSRRH = LD4_PIN)
#define LD4_TOGGLE (LED_PORT->ODR ^= LD4_PIN)
#define LD5_ON (LED_PORT->BSRRL = LD5_PIN)
#define LD5_OFF (LED_PORT->BSRRH = LD5_PIN)
#define LD5_TOGGLE (LED_PORT->ODR ^= LD5_PIN)
#define LD6_ON (LED_PORT->BSRRL = LD6_PIN)
#define LD6_OFF (LED_PORT->BSRRH = LD6_PIN)
#define LD6_TOGGLE (LED_PORT->ODR ^= LD6_PIN)
/* for compatability to other boards */
#define LED_GREEN_ON LD4_ON
#define LED_GREEN_OFF LD4_OFF
#define LED_GREEN_TOGGLE LD4_TOGGLE
#define LED_RED_ON LD5_ON
#define LED_RED_OFF LD5_OFF
#define LED_RED_TOGGLE LD5_TOGGLE
/** @} */
/**
* @brief Initialize board specific hardware, including clock, LEDs and std-IO
*/
void board_init(void);
#endif /** __BOARD_H */
/** @} */

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boards/stm32f4discovery/include/periph_conf.h Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup board_stm32f4discovery
* @{
*
* @file
* @name Peripheral MCU configuration for the STM32F4discovery board
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*/
#ifndef __PERIPH_CONF_H
#define __PERIPH_CONF_H
/**
* @name Clock system configuration
* @{
*/
#define CLOCK_HSE (8000000U) /* external oscillator */
#define CLOCK_CORECLOCK (168000000U) /* desired core clock frequency */
/* the actual PLL values are automatically generated */
#define CLOCK_PLL_M (CLOCK_HSE / 1000000)
#define CLOCK_PLL_N ((CLOCK_CORECLOCK / 1000000) * 2)
#define CLOCK_PLL_P (2U)
#define CLOCK_PLL_Q (CLOCK_PLL_N / 48)
#define CLOCK_AHB_DIV RCC_CFGR_HPRE_DIV1
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV2
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV4
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY_5WS
/** @} */
/**
* @name Timer configuration
* @{
*/
#define TIMER_NUMOF (2U)
#define TIMER_0_EN 1
#define TIMER_1_EN 1
#define TIMER_IRQ_PRIO 1
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_PRESCALER (83U)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
/* Timer 1 configuration */
#define TIMER_1_DEV TIM5
#define TIMER_1_CHANNELS 4
#define TIMER_1_PRESCALER (83U)
#define TIMER_1_MAX_VALUE (0xffffffff)
#define TIMER_1_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM5EN)
#define TIMER_1_ISR isr_tim5
#define TIMER_1_IRQ_CHAN TIM5_IRQn
/** @} */
/**
* @name UART configuration
* @{
*/
#define UART_NUMOF (2U)
#define UART_0_EN 1
#define UART_1_EN 1
#define UART_IRQ_PRIO 1
#define UART_CLK (14000000U) /* UART clock runs with 14MHz */
/* UART 0 device configuration */
#define UART_0_DEV USART2
#define UART_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_USART2EN)
#define UART_0_CLK (42000000) /* UART clock runs with 42MHz (F_CPU / 4) */
#define UART_0_IRQ_CHAN USART2_IRQn
#define UART_0_ISR isr_usart2
/* UART 0 pin configuration */
#define UART_0_PORT_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
#define UART_0_PORT GPIOA
#define UART_0_TX_PIN 2
#define UART_0_RX_PIN 3
#define UART_0_AF 7
/* UART 1 device configuration */
#define UART_1_DEV USART3
#define UART_1_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_USART3EN)
#define UART_1_CLK (42000000) /* UART clock runs with 42MHz (F_CPU / 4) */
#define UART_1_IRQ_CHAN USART3_IRQn
#define UART_1_ISR isr_usart3
/* UART 1 pin configuration */
#define UART_1_PORT_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN)
#define UART_1_PORT GPIOD
#define UART_1_TX_PIN 8
#define UART_1_RX_PIN 9
#define UART_1_AF 7
/** @} */
/**
* @name ADC configuration
* @{
*/
#define ADC_NUMOF (0U)
#define ADC_0_EN 0
#define ADC_1_EN 0
/* ADC 0 configuration */
#define ADC_0_DEV ADC1 /* TODO !!!!!!! */
#define ADC_0_SAMPLE_TIMER
/* ADC 0 channel 0 pin config */
#define ADC_0_C0_PORT
#define ADC_0_C0_PIN
#define ADC_0_C0_CLKEN()
#define ADC_0_C0_AFCFG()
/* ADC 0 channel 1 pin config */
#define ADC_0_C1_PORT
#define ADC_0_C1_PIN
#define ADC_0_C1_CLKEN()
#define ADC_0_C1_AFCFG()
/* ADC 0 channel 2 pin config */
#define ADC_0_C2_PORT
#define ADC_0_C2_PIN
#define ADC_0_C2_CLKEN()
#define ADC_0_C2_AFCFG()
/* ADC 0 channel 3 pin config */
#define ADC_0_C3_PORT
#define ADC_0_C3_PIN
#define ADC_0_C3_CLKEN()
#define ADC_0_C3_AFCFG()
/* ADC 0 configuration */
#define ADC_1_DEV ADC2 /* TODO !!!!!!! */
#define ADC_1_SAMPLE_TIMER
/* ADC 0 channel 0 pin config */
#define ADC_1_C0_PORT
#define ADC_1_C0_PIN
#define ADC_1_C0_CLKEN()
#define ADC_1_C0_AFCFG()
/* ADC 0 channel 1 pin config */
#define ADC_1_C1_PORT
#define ADC_1_C1_PIN
#define ADC_1_C1_CLKEN()
#define ADC_1_C1_AFCFG()
/* ADC 0 channel 2 pin config */
#define ADC_1_C2_PORT
#define ADC_1_C2_PIN
#define ADC_1_C2_CLKEN()
#define ADC_1_C2_AFCFG()
/* ADC 0 channel 3 pin config */
#define ADC_1_C3_PORT
#define ADC_1_C3_PIN
#define ADC_1_C3_CLKEN()
#define ADC_1_C3_AFCFG()
/** @} */
/**
* @name PWM configuration
* @{
*/
#define PWM_NUMOF (0U) /* TODO !!!!!!! */
#define PWM_0_EN 0
#define PWM_1_EN 0
/* PWM 0 device configuration */
#define PWM_0_DEV TIM1
#define PWM_0_CHANNELS 4
/* PWM 0 pin configuration */
#define PWM_0_PORT
#define PWM_0_PINS
#define PWM_0_PORT_CLKEN()
#define PWM_0_CH1_AFCFG()
#define PWM_0_CH2_AFCFG()
#define PWM_0_CH3_AFCFG()
#define PWM_0_CH4_AFCFG()
/* PWM 1 device configuration */
#define PWM_1_DEV TIM3
#define PWM_1_CHANNELS 4
/* PWM 1 pin configuration */
#define PWM_1_PORT
#define PWM_1_PINS
#define PWM_1_PORT_CLKEN()
#define PWM_1_CH1_AFCFG()
#define PWM_1_CH2_AFCFG()
#define PWM_1_CH3_AFCFG()
#define PWM_1_CH4_AFCFG()
/** @} */
/**
* @name SPI configuration
* @{
*/
#define SPI_NUMOF (0U) /* TODO !!!!!!! */
#define SPI_0_EN 0
#define SPI_1_EN 0
/* SPI 0 device config */
#define SPI_0_DEV
#define SPI_0_CLKEN()
#define SPI_0_IRQ
#define SPI_0_IRQ_HANDLER
#define SPI_0_IRQ_PRIO
/* SPI 1 pin configuration */
#define SPI_0_PORT
#define SPI_0_PINS
#define SPI_1_PORT_CLKEN()
#define SPI_1_SCK_AFCFG()
#define SPI_1_MISO_AFCFG()
#define SPI_1_MOSI_AFCFG()
/* SPI 1 device config */
#define SPI_1_DEV
#define SPI_1_CLKEN()
#define SPI_1_IRQ
#define SPI_1_IRQ_HANDLER
#define SPI_1_IRQ_PRIO
/* SPI 1 pin configuration */
#define SPI_1_PORT
#define SPI_1_PINS
#define SPI_1_PORT_CLKEN()
#define SPI_1_SCK_AFCFG()
#define SPI_1_MISO_AFCFG()
#define SPI_1_MOSI_AFCFG()
/** @} */
/**
* @name I2C configuration
* @{
*/
#define I2C_NUMOF (0U) /* TODO !!!!!!! */
#define I2C_0_EN 0
#define I2C_0_EN 0
/* SPI 0 device configuration */
#define I2C_0_DEV
#define I2C_0_CLKEN()
#define I2C_0_ISR
#define I2C_0_IRQ
#define I2C_0_IRQ_PRIO
/* SPI 0 pin configuration */
#define I2C_0_PORT
#define I2C_0_PINS
#define I2C_0_PORT_CLKEN()
#define I2C_0_SCL_AFCFG()
#define I2C_0_SDA_AFCFG()
/* SPI 1 device configuration */
#define I2C_1_DEV
#define I2C_1_CLKEN()
#define I2C_1_ISR
#define I2C_1_IRQ
#define I2C_1_IRQ_PRIO
/* SPI 1 pin configuration */
#define I2C_1_PORT
#define I2C_1_PINS
#define I2C_1_PORT_CLKEN()
#define I2C_1_SCL_AFCFG()
#define I2C_1_SDA_AFCFG()
/** @} */
/**
* @name GPIO configuration
* @{
*/
#define GPIO_NUMOF 12
#define GPIO_0_EN 1
#define GPIO_1_EN 1
#define GPIO_2_EN 1
#define GPIO_3_EN 1
#define GPIO_4_EN 1
#define GPIO_5_EN 1
#define GPIO_6_EN 1
#define GPIO_7_EN 1
#define GPIO_8_EN 1
#define GPIO_9_EN 1
#define GPIO_10_EN 1
#define GPIO_11_EN 1
#define GPIO_IRQ_PRIO 1
/* IRQ config */
#define GPIO_IRQ_0 GPIO_0 /* alternatively GPIO_1 could be used here */
#define GPIO_IRQ_1 GPIO_2
#define GPIO_IRQ_2 GPIO_3
#define GPIO_IRQ_3 GPIO_4
#define GPIO_IRQ_4 GPIO_5
#define GPIO_IRQ_5 GPIO_6
#define GPIO_IRQ_6 GPIO_7
#define GPIO_IRQ_7 GPIO_8
#define GPIO_IRQ_8 GPIO_9
#define GPIO_IRQ_9 GPIO_10
#define GPIO_IRQ_10 GPIO_11
#define GPIO_IRQ_11 -1/* not configured */
#define GPIO_IRQ_12 -1/* not configured */
#define GPIO_IRQ_13 -1/* not configured */
#define GPIO_IRQ_14 -1/* not configured */
#define GPIO_IRQ_15 -1/* not configured */
/* GPIO channel 0 config */
#define GPIO_0_PORT GPIOA /* Used for user button 1 */
#define GPIO_0_PIN 0
#define GPIO_0_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
#define GPIO_0_EXTI_CFG() (SYSCFG->EXTICR[0] |= SYSCFG_EXTICR1_EXTI0_PA)
#define GPIO_0_IRQ EXTI0_IRQn
/* GPIO channel 1 config */
#define GPIO_1_PORT GPIOE /* LIS302DL INT1 */
#define GPIO_1_PIN 0
#define GPIO_1_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOEEN)
#define GPIO_1_EXTI_CFG() (SYSCFG->EXTICR[0] |= SYSCFG_EXTICR1_EXTI0_PE)
#define GPIO_1_IRQ EXTI0_IRQn
/* GPIO channel 2 config */
#define GPIO_2_PORT GPIOE /* LIS302DL INT2 */
#define GPIO_2_PIN 1
#define GPIO_2_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOEEN)
#define GPIO_2_EXTI_CFG() (SYSCFG->EXTICR[0] |= SYSCFG_EXTICR1_EXTI1_PE)
#define GPIO_2_IRQ EXTI1_IRQn
/* GPIO channel 3 config */
#define GPIO_3_PORT GPIOE
#define GPIO_3_PIN 2
#define GPIO_3_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOEEN)
#define GPIO_3_EXTI_CFG() (SYSCFG->EXTICR[0] |= SYSCFG_EXTICR1_EXTI2_PE)
#define GPIO_3_IRQ EXTI2_IRQn
/* GPIO channel 4 config */
#define GPIO_4_PORT GPIOE /* LIS302DL CS */
#define GPIO_4_PIN 3
#define GPIO_4_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOEEN)
#define GPIO_4_EXTI_CFG() (SYSCFG->EXTICR[0] |= SYSCFG_EXTICR1_EXTI3_PE)
#define GPIO_4_IRQ EXTI3_IRQn
/* GPIO channel 5 config */
#define GPIO_5_PORT GPIOD /* CS43L22 RESET */
#define GPIO_5_PIN 4
#define GPIO_5_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN)
#define GPIO_5_EXTI_CFG() (SYSCFG->EXTICR[1] |= SYSCFG_EXTICR2_EXTI4_PD)
#define GPIO_5_IRQ EXTI4_IRQn
/* GPIO channel 6 config */
#define GPIO_6_PORT GPIOD /* LD8 */
#define GPIO_6_PIN 5
#define GPIO_6_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN)
#define GPIO_6_EXTI_CFG() (SYSCFG->EXTICR[1] |= SYSCFG_EXTICR2_EXTI5_PD)
#define GPIO_6_IRQ EXTI9_5_IRQn
/* GPIO channel 7 config */
#define GPIO_7_PORT GPIOD
#define GPIO_7_PIN 6
#define GPIO_7_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN)
#define GPIO_7_EXTI_CFG() (SYSCFG->EXTICR[1] |= SYSCFG_EXTICR2_EXTI6_PD)
#define GPIO_7_IRQ EXTI9_5_IRQn
/* GPIO channel 8 config */
#define GPIO_8_PORT GPIOD
#define GPIO_8_PIN 7
#define GPIO_8_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN)
#define GPIO_8_EXTI_CFG() (SYSCFG->EXTICR[1] |= SYSCFG_EXTICR2_EXTI7_PD)
#define GPIO_8_IRQ EXTI9_5_IRQn
/* GPIO channel 9 config */
#define GPIO_9_PORT GPIOA
#define GPIO_9_PIN 8
#define GPIO_9_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
#define GPIO_9_EXTI_CFG() (SYSCFG->EXTICR[2] |= SYSCFG_EXTICR3_EXTI8_PA)
#define GPIO_9_IRQ EXTI9_5_IRQn
/* GPIO channel 10 config */
#define GPIO_10_PORT GPIOA /* LD7 */
#define GPIO_10_PIN 9
#define GPIO_10_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
#define GPIO_10_EXTI_CFG() (SYSCFG->EXTICR[2] |= SYSCFG_EXTICR3_EXTI9_PA)
#define GPIO_10_IRQ EXTI9_5_IRQn
/* GPIO channel 11 config */
#define GPIO_11_PORT GPIOD
#define GPIO_11_PIN 10
#define GPIO_11_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN)
#define GPIO_11_EXTI_CFG() (SYSCFG->EXTICR[2] |= SYSCFG_EXTICR3_EXTI10_PD)
#define GPIO_11_IRQ EXTI15_10_IRQn
/** @} */
#endif /* __PERIPH_CONF_H */
/** @} */

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# define the module that is build
MODULE = cortex-m4_common
include $(RIOTBASE)/Makefile.base

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# include module specific includes
export INCLUDES += -I$(RIOTCPU)/cortex-m4_common/include

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_cortexm4_common
* @{
*
* @file
* @brief Implementation of the kernels atomic interface
*
* @author Stefan Pfeiffer <stefan.pfeiffer@fu-berlin.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include "arch/atomic_arch.h"
#include "irq.h"
unsigned int atomic_arch_set_return(unsigned int *to_set, unsigned int value)
{
disableIRQ();
unsigned int old = *to_set;
*to_set = value;
enableIRQ();
return old;
}

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/**************************************************************************//**
* @file core_cm4_simd.h
* @brief CMSIS Cortex-M4 SIMD Header File
* @version V3.20
* @date 25. February 2013
*
* @note
*
******************************************************************************/
/* Copyright (c) 2009 - 2013 ARM LIMITED
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of ARM nor the names of its contributors may be used
to endorse or promote products derived from this software without
specific prior written permission.
*
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------*/
#ifdef __cplusplus
extern "C" {
#endif
#ifndef __CORE_CM4_SIMD_H
#define __CORE_CM4_SIMD_H
/*******************************************************************************
* Hardware Abstraction Layer
******************************************************************************/
/* ################### Compiler specific Intrinsics ########################### */
/** \defgroup CMSIS_SIMD_intrinsics CMSIS SIMD Intrinsics
Access to dedicated SIMD instructions
@{
*/
#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
/* ARM armcc specific functions */
/*------ CM4 SIMD Intrinsics -----------------------------------------------------*/
#define __SADD8 __sadd8
#define __QADD8 __qadd8
#define __SHADD8 __shadd8
#define __UADD8 __uadd8
#define __UQADD8 __uqadd8
#define __UHADD8 __uhadd8
#define __SSUB8 __ssub8
#define __QSUB8 __qsub8
#define __SHSUB8 __shsub8
#define __USUB8 __usub8
#define __UQSUB8 __uqsub8
#define __UHSUB8 __uhsub8
#define __SADD16 __sadd16
#define __QADD16 __qadd16
#define __SHADD16 __shadd16
#define __UADD16 __uadd16
#define __UQADD16 __uqadd16
#define __UHADD16 __uhadd16
#define __SSUB16 __ssub16
#define __QSUB16 __qsub16
#define __SHSUB16 __shsub16
#define __USUB16 __usub16
#define __UQSUB16 __uqsub16
#define __UHSUB16 __uhsub16
#define __SASX __sasx
#define __QASX __qasx
#define __SHASX __shasx
#define __UASX __uasx
#define __UQASX __uqasx
#define __UHASX __uhasx
#define __SSAX __ssax
#define __QSAX __qsax
#define __SHSAX __shsax
#define __USAX __usax
#define __UQSAX __uqsax
#define __UHSAX __uhsax
#define __USAD8 __usad8
#define __USADA8 __usada8
#define __SSAT16 __ssat16
#define __USAT16 __usat16
#define __UXTB16 __uxtb16
#define __UXTAB16 __uxtab16
#define __SXTB16 __sxtb16
#define __SXTAB16 __sxtab16
#define __SMUAD __smuad
#define __SMUADX __smuadx
#define __SMLAD __smlad
#define __SMLADX __smladx
#define __SMLALD __smlald
#define __SMLALDX __smlaldx
#define __SMUSD __smusd
#define __SMUSDX __smusdx
#define __SMLSD __smlsd
#define __SMLSDX __smlsdx
#define __SMLSLD __smlsld
#define __SMLSLDX __smlsldx
#define __SEL __sel
#define __QADD __qadd
#define __QSUB __qsub
#define __PKHBT(ARG1,ARG2,ARG3) ( ((((uint32_t)(ARG1)) ) & 0x0000FFFFUL) | \
((((uint32_t)(ARG2)) << (ARG3)) & 0xFFFF0000UL) )
#define __PKHTB(ARG1,ARG2,ARG3) ( ((((uint32_t)(ARG1)) ) & 0xFFFF0000UL) | \
((((uint32_t)(ARG2)) >> (ARG3)) & 0x0000FFFFUL) )
#define __SMMLA(ARG1,ARG2,ARG3) ( (int32_t)((((int64_t)(ARG1) * (ARG2)) + \
((int64_t)(ARG3) << 32) ) >> 32))
/*-- End CM4 SIMD Intrinsics -----------------------------------------------------*/
#elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
/* IAR iccarm specific functions */
/*------ CM4 SIMD Intrinsics -----------------------------------------------------*/
#include <cmsis_iar.h>
/*-- End CM4 SIMD Intrinsics -----------------------------------------------------*/
#elif defined ( __TMS470__ ) /*---------------- TI CCS Compiler ------------------*/
/* TI CCS specific functions */
/*------ CM4 SIMD Intrinsics -----------------------------------------------------*/
#include <cmsis_ccs.h>
/*-- End CM4 SIMD Intrinsics -----------------------------------------------------*/
#elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/
/* GNU gcc specific functions */
/*------ CM4 SIMD Intrinsics -----------------------------------------------------*/
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SADD8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("sadd8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QADD8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qadd8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SHADD8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("shadd8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UADD8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uadd8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UQADD8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uqadd8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UHADD8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uhadd8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SSUB8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("ssub8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QSUB8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qsub8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SHSUB8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("shsub8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __USUB8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("usub8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UQSUB8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uqsub8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UHSUB8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uhsub8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SADD16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("sadd16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QADD16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qadd16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SHADD16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("shadd16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UADD16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uadd16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UQADD16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uqadd16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UHADD16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uhadd16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SSUB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("ssub16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QSUB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qsub16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SHSUB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("shsub16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __USUB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("usub16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UQSUB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uqsub16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UHSUB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uhsub16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SASX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("sasx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QASX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qasx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SHASX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("shasx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UASX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uasx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UQASX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uqasx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UHASX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uhasx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SSAX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("ssax %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QSAX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qsax %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SHSAX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("shsax %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __USAX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("usax %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UQSAX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uqsax %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UHSAX(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uhsax %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __USAD8(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("usad8 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __USADA8(uint32_t op1, uint32_t op2, uint32_t op3)
{
uint32_t result;
__ASM volatile ("usada8 %0, %1, %2, %3" : "=r" (result) : "r" (op1), "r" (op2), "r" (op3) );
return(result);
}
#define __SSAT16(ARG1,ARG2) \
({ \
uint32_t __RES, __ARG1 = (ARG1); \
__ASM ("ssat16 %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
__RES; \
})
#define __USAT16(ARG1,ARG2) \
({ \
uint32_t __RES, __ARG1 = (ARG1); \
__ASM ("usat16 %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
__RES; \
})
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UXTB16(uint32_t op1)
{
uint32_t result;
__ASM volatile ("uxtb16 %0, %1" : "=r" (result) : "r" (op1));
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __UXTAB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("uxtab16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SXTB16(uint32_t op1)
{
uint32_t result;
__ASM volatile ("sxtb16 %0, %1" : "=r" (result) : "r" (op1));
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SXTAB16(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("sxtab16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMUAD (uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("smuad %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMUADX (uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("smuadx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMLAD (uint32_t op1, uint32_t op2, uint32_t op3)
{
uint32_t result;
__ASM volatile ("smlad %0, %1, %2, %3" : "=r" (result) : "r" (op1), "r" (op2), "r" (op3) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMLADX (uint32_t op1, uint32_t op2, uint32_t op3)
{
uint32_t result;
__ASM volatile ("smladx %0, %1, %2, %3" : "=r" (result) : "r" (op1), "r" (op2), "r" (op3) );
return(result);
}
#define __SMLALD(ARG1,ARG2,ARG3) \
({ \
uint32_t __ARG1 = (ARG1), __ARG2 = (ARG2), __ARG3_H = (uint32_t)((uint64_t)(ARG3) >> 32), __ARG3_L = (uint32_t)((uint64_t)(ARG3) & 0xFFFFFFFFUL); \
__ASM volatile ("smlald %0, %1, %2, %3" : "=r" (__ARG3_L), "=r" (__ARG3_H) : "r" (__ARG1), "r" (__ARG2), "0" (__ARG3_L), "1" (__ARG3_H) ); \
(uint64_t)(((uint64_t)__ARG3_H << 32) | __ARG3_L); \
})
#define __SMLALDX(ARG1,ARG2,ARG3) \
({ \
uint32_t __ARG1 = (ARG1), __ARG2 = (ARG2), __ARG3_H = (uint32_t)((uint64_t)(ARG3) >> 32), __ARG3_L = (uint32_t)((uint64_t)(ARG3) & 0xFFFFFFFFUL); \
__ASM volatile ("smlaldx %0, %1, %2, %3" : "=r" (__ARG3_L), "=r" (__ARG3_H) : "r" (__ARG1), "r" (__ARG2), "0" (__ARG3_L), "1" (__ARG3_H) ); \
(uint64_t)(((uint64_t)__ARG3_H << 32) | __ARG3_L); \
})
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMUSD (uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("smusd %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMUSDX (uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("smusdx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMLSD (uint32_t op1, uint32_t op2, uint32_t op3)
{
uint32_t result;
__ASM volatile ("smlsd %0, %1, %2, %3" : "=r" (result) : "r" (op1), "r" (op2), "r" (op3) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMLSDX (uint32_t op1, uint32_t op2, uint32_t op3)
{
uint32_t result;
__ASM volatile ("smlsdx %0, %1, %2, %3" : "=r" (result) : "r" (op1), "r" (op2), "r" (op3) );
return(result);
}
#define __SMLSLD(ARG1,ARG2,ARG3) \
({ \
uint32_t __ARG1 = (ARG1), __ARG2 = (ARG2), __ARG3_H = (uint32_t)((ARG3) >> 32), __ARG3_L = (uint32_t)((ARG3) & 0xFFFFFFFFUL); \
__ASM volatile ("smlsld %0, %1, %2, %3" : "=r" (__ARG3_L), "=r" (__ARG3_H) : "r" (__ARG1), "r" (__ARG2), "0" (__ARG3_L), "1" (__ARG3_H) ); \
(uint64_t)(((uint64_t)__ARG3_H << 32) | __ARG3_L); \
})
#define __SMLSLDX(ARG1,ARG2,ARG3) \
({ \
uint32_t __ARG1 = (ARG1), __ARG2 = (ARG2), __ARG3_H = (uint32_t)((ARG3) >> 32), __ARG3_L = (uint32_t)((ARG3) & 0xFFFFFFFFUL); \
__ASM volatile ("smlsldx %0, %1, %2, %3" : "=r" (__ARG3_L), "=r" (__ARG3_H) : "r" (__ARG1), "r" (__ARG2), "0" (__ARG3_L), "1" (__ARG3_H) ); \
(uint64_t)(((uint64_t)__ARG3_H << 32) | __ARG3_L); \
})
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SEL (uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("sel %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QADD(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qadd %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __QSUB(uint32_t op1, uint32_t op2)
{
uint32_t result;
__ASM volatile ("qsub %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
return(result);
}
#define __PKHBT(ARG1,ARG2,ARG3) \
({ \
uint32_t __RES, __ARG1 = (ARG1), __ARG2 = (ARG2); \
__ASM ("pkhbt %0, %1, %2, lsl %3" : "=r" (__RES) : "r" (__ARG1), "r" (__ARG2), "I" (ARG3) ); \
__RES; \
})
#define __PKHTB(ARG1,ARG2,ARG3) \
({ \
uint32_t __RES, __ARG1 = (ARG1), __ARG2 = (ARG2); \
if (ARG3 == 0) \
__ASM ("pkhtb %0, %1, %2" : "=r" (__RES) : "r" (__ARG1), "r" (__ARG2) ); \
else \
__ASM ("pkhtb %0, %1, %2, asr %3" : "=r" (__RES) : "r" (__ARG1), "r" (__ARG2), "I" (ARG3) ); \
__RES; \
})
__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __SMMLA (int32_t op1, int32_t op2, int32_t op3)
{
int32_t result;
__ASM volatile ("smmla %0, %1, %2, %3" : "=r" (result): "r" (op1), "r" (op2), "r" (op3) );
return(result);
}
/*-- End CM4 SIMD Intrinsics -----------------------------------------------------*/
#elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/
/* TASKING carm specific functions */
/*------ CM4 SIMD Intrinsics -----------------------------------------------------*/
/* not yet supported */
/*-- End CM4 SIMD Intrinsics -----------------------------------------------------*/
#endif
/*@} end of group CMSIS_SIMD_intrinsics */
#endif /* __CORE_CM4_SIMD_H */
#ifdef __cplusplus
}
#endif

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/**************************************************************************//**
* @file core_cmFunc.h
* @brief CMSIS Cortex-M Core Function Access Header File
* @version V2.10
* @date 26. July 2011
*
* @note
* Copyright (C) 2009-2011 ARM Limited. All rights reserved.
*
* @par
* ARM Limited (ARM) is supplying this software for use with Cortex-M
* processor based microcontrollers. This file can be freely distributed
* within development tools that are supporting such ARM based processors.
*
* @par
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
*
******************************************************************************/
#ifndef __CORE_CMFUNC_H
#define __CORE_CMFUNC_H
/* ########################### Core Function Access ########################### */
/** \ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_RegAccFunctions CMSIS Core Register Access Functions
@{
*/
#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
/* ARM armcc specific functions */
#if (__ARMCC_VERSION < 400677)
#error "Please use ARM Compiler Toolchain V4.0.677 or later!"
#endif
/* intrinsic void __enable_irq(); */
/* intrinsic void __disable_irq(); */
/** \brief Get Control Register
This function returns the content of the Control Register.
\return Control Register value
*/
static __INLINE uint32_t __get_CONTROL(void)
{
register uint32_t __regControl __ASM("control");
return(__regControl);
}
/** \brief Set Control Register
This function writes the given value to the Control Register.
\param [in] control Control Register value to set
*/
static __INLINE void __set_CONTROL(uint32_t control)
{
register uint32_t __regControl __ASM("control");
__regControl = control;
}
/** \brief Get ISPR Register
This function returns the content of the ISPR Register.
\return ISPR Register value
*/
static __INLINE uint32_t __get_IPSR(void)
{
register uint32_t __regIPSR __ASM("ipsr");
return(__regIPSR);
}
/** \brief Get APSR Register
This function returns the content of the APSR Register.
\return APSR Register value
*/
static __INLINE uint32_t __get_APSR(void)
{
register uint32_t __regAPSR __ASM("apsr");
return(__regAPSR);
}
/** \brief Get xPSR Register
This function returns the content of the xPSR Register.
\return xPSR Register value
*/
static __INLINE uint32_t __get_xPSR(void)
{
register uint32_t __regXPSR __ASM("xpsr");
return(__regXPSR);
}
/** \brief Get Process Stack Pointer
This function returns the current value of the Process Stack Pointer (PSP).
\return PSP Register value
*/
static __INLINE uint32_t __get_PSP(void)
{
register uint32_t __regProcessStackPointer __ASM("psp");
return(__regProcessStackPointer);
}
/** \brief Set Process Stack Pointer
This function assigns the given value to the Process Stack Pointer (PSP).
\param [in] topOfProcStack Process Stack Pointer value to set
*/
static __INLINE void __set_PSP(uint32_t topOfProcStack)
{
register uint32_t __regProcessStackPointer __ASM("psp");
__regProcessStackPointer = topOfProcStack;
}
/** \brief Get Main Stack Pointer
This function returns the current value of the Main Stack Pointer (MSP).
\return MSP Register value
*/
static __INLINE uint32_t __get_MSP(void)
{
register uint32_t __regMainStackPointer __ASM("msp");
return(__regMainStackPointer);
}
/** \brief Set Main Stack Pointer
This function assigns the given value to the Main Stack Pointer (MSP).
\param [in] topOfMainStack Main Stack Pointer value to set
*/
static __INLINE void __set_MSP(uint32_t topOfMainStack)
{
register uint32_t __regMainStackPointer __ASM("msp");
__regMainStackPointer = topOfMainStack;
}
/** \brief Get Priority Mask
This function returns the current state of the priority mask bit from the Priority Mask Register.
\return Priority Mask value
*/
static __INLINE uint32_t __get_PRIMASK(void)
{
register uint32_t __regPriMask __ASM("primask");
return(__regPriMask);
}
/** \brief Set Priority Mask
This function assigns the given value to the Priority Mask Register.
\param [in] priMask Priority Mask
*/
static __INLINE void __set_PRIMASK(uint32_t priMask)
{
register uint32_t __regPriMask __ASM("primask");
__regPriMask = (priMask);
}
#if (__CORTEX_M >= 0x03)
/** \brief Enable FIQ
This function enables FIQ interrupts by clearing the F-bit in the CPSR.
Can only be executed in Privileged modes.
*/
#define __enable_fault_irq __enable_fiq
/** \brief Disable FIQ
This function disables FIQ interrupts by setting the F-bit in the CPSR.
Can only be executed in Privileged modes.
*/
#define __disable_fault_irq __disable_fiq
/** \brief Get Base Priority
This function returns the current value of the Base Priority register.
\return Base Priority register value
*/
static __INLINE uint32_t __get_BASEPRI(void)
{
register uint32_t __regBasePri __ASM("basepri");
return(__regBasePri);
}
/** \brief Set Base Priority
This function assigns the given value to the Base Priority register.
\param [in] basePri Base Priority value to set
*/
static __INLINE void __set_BASEPRI(uint32_t basePri)
{
register uint32_t __regBasePri __ASM("basepri");
__regBasePri = (basePri & 0xff);
}
/** \brief Get Fault Mask
This function returns the current value of the Fault Mask register.
\return Fault Mask register value
*/
static __INLINE uint32_t __get_FAULTMASK(void)
{
register uint32_t __regFaultMask __ASM("faultmask");
return(__regFaultMask);
}
/** \brief Set Fault Mask
This function assigns the given value to the Fault Mask register.
\param [in] faultMask Fault Mask value to set
*/
static __INLINE void __set_FAULTMASK(uint32_t faultMask)
{
register uint32_t __regFaultMask __ASM("faultmask");
__regFaultMask = (faultMask & (uint32_t)1);
}
#endif /* (__CORTEX_M >= 0x03) */
#if (__CORTEX_M == 0x04)
/** \brief Get FPSCR
This function returns the current value of the Floating Point Status/Control register.
\return Floating Point Status/Control register value
*/
static __INLINE uint32_t __get_FPSCR(void)
{
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
register uint32_t __regfpscr __ASM("fpscr");
return(__regfpscr);
#else
return(0);
#endif
}
/** \brief Set FPSCR
This function assigns the given value to the Floating Point Status/Control register.
\param [in] fpscr Floating Point Status/Control value to set
*/
static __INLINE void __set_FPSCR(uint32_t fpscr)
{
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
register uint32_t __regfpscr __ASM("fpscr");
__regfpscr = (fpscr);
#endif
}
#endif /* (__CORTEX_M == 0x04) */
#elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
/* IAR iccarm specific functions */
#include <cmsis_iar.h>
#elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/
/* GNU gcc specific functions */
/** \brief Enable IRQ Interrupts
This function enables IRQ interrupts by clearing the I-bit in the CPSR.
Can only be executed in Privileged modes.
*/
__attribute__( ( always_inline ) ) static __INLINE void __enable_irq(void)
{
__ASM volatile ("cpsie i");
}
/** \brief Disable IRQ Interrupts
This function disables IRQ interrupts by setting the I-bit in the CPSR.
Can only be executed in Privileged modes.
*/
__attribute__( ( always_inline ) ) static __INLINE void __disable_irq(void)
{
__ASM volatile ("cpsid i");
}
/** \brief Get Control Register
This function returns the content of the Control Register.
\return Control Register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_CONTROL(void)
{
uint32_t result;
__ASM volatile ("MRS %0, control" : "=r" (result) );
return(result);
}
/** \brief Set Control Register
This function writes the given value to the Control Register.
\param [in] control Control Register value to set
*/
__attribute__( ( always_inline ) ) static __INLINE void __set_CONTROL(uint32_t control)
{
__ASM volatile ("MSR control, %0" : : "r" (control) );
}
/** \brief Get ISPR Register
This function returns the content of the ISPR Register.
\return ISPR Register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_IPSR(void)
{
uint32_t result;
__ASM volatile ("MRS %0, ipsr" : "=r" (result) );
return(result);
}
/** \brief Get APSR Register
This function returns the content of the APSR Register.
\return APSR Register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_APSR(void)
{
uint32_t result;
__ASM volatile ("MRS %0, apsr" : "=r" (result) );
return(result);
}
/** \brief Get xPSR Register
This function returns the content of the xPSR Register.
\return xPSR Register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_xPSR(void)
{
uint32_t result;
__ASM volatile ("MRS %0, xpsr" : "=r" (result) );
return(result);
}
/** \brief Get Process Stack Pointer
This function returns the current value of the Process Stack Pointer (PSP).
\return PSP Register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_PSP(void)
{
register uint32_t result;
__ASM volatile ("MRS %0, psp\n" : "=r" (result) );
return(result);
}
/** \brief Set Process Stack Pointer
This function assigns the given value to the Process Stack Pointer (PSP).
\param [in] topOfProcStack Process Stack Pointer value to set
*/
__attribute__( ( always_inline ) ) static __INLINE void __set_PSP(uint32_t topOfProcStack)
{
__ASM volatile ("MSR psp, %0\n" : : "r" (topOfProcStack) );
}
/** \brief Get Main Stack Pointer
This function returns the current value of the Main Stack Pointer (MSP).
\return MSP Register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_MSP(void)
{
register uint32_t result;
__ASM volatile ("MRS %0, msp\n" : "=r" (result) );
return(result);
}
/** \brief Set Main Stack Pointer
This function assigns the given value to the Main Stack Pointer (MSP).
\param [in] topOfMainStack Main Stack Pointer value to set
*/
__attribute__( ( always_inline ) ) static __INLINE void __set_MSP(uint32_t topOfMainStack)
{
__ASM volatile ("MSR msp, %0\n" : : "r" (topOfMainStack) );
}
/** \brief Get Priority Mask
This function returns the current state of the priority mask bit from the Priority Mask Register.
\return Priority Mask value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_PRIMASK(void)
{
uint32_t result;
__ASM volatile ("MRS %0, primask" : "=r" (result) );
return(result);
}
/** \brief Set Priority Mask
This function assigns the given value to the Priority Mask Register.
\param [in] priMask Priority Mask
*/
__attribute__( ( always_inline ) ) static __INLINE void __set_PRIMASK(uint32_t priMask)
{
__ASM volatile ("MSR primask, %0" : : "r" (priMask) );
}
#if (__CORTEX_M >= 0x03)
/** \brief Enable FIQ
This function enables FIQ interrupts by clearing the F-bit in the CPSR.
Can only be executed in Privileged modes.
*/
__attribute__( ( always_inline ) ) static __INLINE void __enable_fault_irq(void)
{
__ASM volatile ("cpsie f");
}
/** \brief Disable FIQ
This function disables FIQ interrupts by setting the F-bit in the CPSR.
Can only be executed in Privileged modes.
*/
__attribute__( ( always_inline ) ) static __INLINE void __disable_fault_irq(void)
{
__ASM volatile ("cpsid f");
}
/** \brief Get Base Priority
This function returns the current value of the Base Priority register.
\return Base Priority register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_BASEPRI(void)
{
uint32_t result;
__ASM volatile ("MRS %0, basepri_max" : "=r" (result) );
return(result);
}
/** \brief Set Base Priority
This function assigns the given value to the Base Priority register.
\param [in] basePri Base Priority value to set
*/
__attribute__( ( always_inline ) ) static __INLINE void __set_BASEPRI(uint32_t value)
{
__ASM volatile ("MSR basepri, %0" : : "r" (value) );
}
/** \brief Get Fault Mask
This function returns the current value of the Fault Mask register.
\return Fault Mask register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_FAULTMASK(void)
{
uint32_t result;
__ASM volatile ("MRS %0, faultmask" : "=r" (result) );
return(result);
}
/** \brief Set Fault Mask
This function assigns the given value to the Fault Mask register.
\param [in] faultMask Fault Mask value to set
*/
__attribute__( ( always_inline ) ) static __INLINE void __set_FAULTMASK(uint32_t faultMask)
{
__ASM volatile ("MSR faultmask, %0" : : "r" (faultMask) );
}
#endif /* (__CORTEX_M >= 0x03) */
#if (__CORTEX_M == 0x04)
/** \brief Get FPSCR
This function returns the current value of the Floating Point Status/Control register.
\return Floating Point Status/Control register value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __get_FPSCR(void)
{
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
uint32_t result;
__ASM volatile ("VMRS %0, fpscr" : "=r" (result) );
return(result);
#else
return(0);
#endif
}
/** \brief Set FPSCR
This function assigns the given value to the Floating Point Status/Control register.
\param [in] fpscr Floating Point Status/Control value to set
*/
__attribute__( ( always_inline ) ) static __INLINE void __set_FPSCR(uint32_t fpscr)
{
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
__ASM volatile ("VMSR fpscr, %0" : : "r" (fpscr) );
#endif
}
#endif /* (__CORTEX_M == 0x04) */
#elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/
/* TASKING carm specific functions */
/*
* The CMSIS functions have been implemented as intrinsics in the compiler.
* Please use "carm -?i" to get an up to date list of all instrinsics,
* Including the CMSIS ones.
*/
#endif
/*@} end of CMSIS_Core_RegAccFunctions */
#endif /* __CORE_CMFUNC_H */

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/**************************************************************************//**
* @file core_cmInstr.h
* @brief CMSIS Cortex-M Core Instruction Access Header File
* @version V2.10
* @date 19. July 2011
*
* @note
* Copyright (C) 2009-2011 ARM Limited. All rights reserved.
*
* @par
* ARM Limited (ARM) is supplying this software for use with Cortex-M
* processor based microcontrollers. This file can be freely distributed
* within development tools that are supporting such ARM based processors.
*
* @par
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
*
******************************************************************************/
#ifndef __CORE_CMINSTR_H
#define __CORE_CMINSTR_H
/* ########################## Core Instruction Access ######################### */
/** \defgroup CMSIS_Core_InstructionInterface CMSIS Core Instruction Interface
Access to dedicated instructions
@{
*/
#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
/* ARM armcc specific functions */
#if (__ARMCC_VERSION < 400677)
#error "Please use ARM Compiler Toolchain V4.0.677 or later!"
#endif
/** \brief No Operation
No Operation does nothing. This instruction can be used for code alignment purposes.
*/
#define __NOP __nop
/** \brief Wait For Interrupt
Wait For Interrupt is a hint instruction that suspends execution
until one of a number of events occurs.
*/
#define __WFI __wfi
/** \brief Wait For Event
Wait For Event is a hint instruction that permits the processor to enter
a low-power state until one of a number of events occurs.
*/
#define __WFE __wfe
/** \brief Send Event
Send Event is a hint instruction. It causes an event to be signaled to the CPU.
*/
#define __SEV __sev
/** \brief Instruction Synchronization Barrier
Instruction Synchronization Barrier flushes the pipeline in the processor,
so that all instructions following the ISB are fetched from cache or
memory, after the instruction has been completed.
*/
#define __ISB() __isb(0xF)
/** \brief Data Synchronization Barrier
This function acts as a special kind of Data Memory Barrier.
It completes when all explicit memory accesses before this instruction complete.
*/
#define __DSB() __dsb(0xF)
/** \brief Data Memory Barrier
This function ensures the apparent order of the explicit memory operations before
and after the instruction, without ensuring their completion.
*/
#define __DMB() __dmb(0xF)
/** \brief Reverse byte order (32 bit)
This function reverses the byte order in integer value.
\param [in] value Value to reverse
\return Reversed value
*/
#define __REV __rev
/** \brief Reverse byte order (16 bit)
This function reverses the byte order in two unsigned short values.
\param [in] value Value to reverse
\return Reversed value
*/
static __INLINE __ASM uint32_t __REV16(uint32_t value)
{
rev16 r0, r0
bx lr
}
/** \brief Reverse byte order in signed short value
This function reverses the byte order in a signed short value with sign extension to integer.
\param [in] value Value to reverse
\return Reversed value
*/
static __INLINE __ASM int32_t __REVSH(int32_t value)
{
revsh r0, r0
bx lr
}
#if (__CORTEX_M >= 0x03)
/** \brief Reverse bit order of value
This function reverses the bit order of the given value.
\param [in] value Value to reverse
\return Reversed value
*/
#define __RBIT __rbit
/** \brief LDR Exclusive (8 bit)
This function performs a exclusive LDR command for 8 bit value.
\param [in] ptr Pointer to data
\return value of type uint8_t at (*ptr)
*/
#define __LDREXB(ptr) ((uint8_t ) __ldrex(ptr))
/** \brief LDR Exclusive (16 bit)
This function performs a exclusive LDR command for 16 bit values.
\param [in] ptr Pointer to data
\return value of type uint16_t at (*ptr)
*/
#define __LDREXH(ptr) ((uint16_t) __ldrex(ptr))
/** \brief LDR Exclusive (32 bit)
This function performs a exclusive LDR command for 32 bit values.
\param [in] ptr Pointer to data
\return value of type uint32_t at (*ptr)
*/
#define __LDREXW(ptr) ((uint32_t ) __ldrex(ptr))
/** \brief STR Exclusive (8 bit)
This function performs a exclusive STR command for 8 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
#define __STREXB(value, ptr) __strex(value, ptr)
/** \brief STR Exclusive (16 bit)
This function performs a exclusive STR command for 16 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
#define __STREXH(value, ptr) __strex(value, ptr)
/** \brief STR Exclusive (32 bit)
This function performs a exclusive STR command for 32 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
#define __STREXW(value, ptr) __strex(value, ptr)
/** \brief Remove the exclusive lock
This function removes the exclusive lock which is created by LDREX.
*/
#define __CLREX __clrex
/** \brief Signed Saturate
This function saturates a signed value.
\param [in] value Value to be saturated
\param [in] sat Bit position to saturate to (1..32)
\return Saturated value
*/
#define __SSAT __ssat
/** \brief Unsigned Saturate
This function saturates an unsigned value.
\param [in] value Value to be saturated
\param [in] sat Bit position to saturate to (0..31)
\return Saturated value
*/
#define __USAT __usat
/** \brief Count leading zeros
This function counts the number of leading zeros of a data value.
\param [in] value Value to count the leading zeros
\return number of leading zeros in value
*/
#define __CLZ __clz
#endif /* (__CORTEX_M >= 0x03) */
#elif defined ( __ICCARM__ ) /*------------------ ICC Compiler -------------------*/
/* IAR iccarm specific functions */
#include <cmsis_iar.h>
#elif defined ( __GNUC__ ) /*------------------ GNU Compiler ---------------------*/
/* GNU gcc specific functions */
/** \brief No Operation
No Operation does nothing. This instruction can be used for code alignment purposes.
*/
__attribute__( ( always_inline ) ) static __INLINE void __NOP(void)
{
__ASM volatile ("nop");
}
/** \brief Wait For Interrupt
Wait For Interrupt is a hint instruction that suspends execution
until one of a number of events occurs.
*/
__attribute__( ( always_inline ) ) static __INLINE void __WFI(void)
{
__ASM volatile ("wfi");
}
/** \brief Wait For Event
Wait For Event is a hint instruction that permits the processor to enter
a low-power state until one of a number of events occurs.
*/
__attribute__( ( always_inline ) ) static __INLINE void __WFE(void)
{
__ASM volatile ("wfe");
}
/** \brief Send Event
Send Event is a hint instruction. It causes an event to be signaled to the CPU.
*/
__attribute__( ( always_inline ) ) static __INLINE void __SEV(void)
{
__ASM volatile ("sev");
}
/** \brief Instruction Synchronization Barrier
Instruction Synchronization Barrier flushes the pipeline in the processor,
so that all instructions following the ISB are fetched from cache or
memory, after the instruction has been completed.
*/
__attribute__( ( always_inline ) ) static __INLINE void __ISB(void)
{
__ASM volatile ("isb");
}
/** \brief Data Synchronization Barrier
This function acts as a special kind of Data Memory Barrier.
It completes when all explicit memory accesses before this instruction complete.
*/
__attribute__( ( always_inline ) ) static __INLINE void __DSB(void)
{
__ASM volatile ("dsb");
}
/** \brief Data Memory Barrier
This function ensures the apparent order of the explicit memory operations before
and after the instruction, without ensuring their completion.
*/
__attribute__( ( always_inline ) ) static __INLINE void __DMB(void)
{
__ASM volatile ("dmb");
}
/** \brief Reverse byte order (32 bit)
This function reverses the byte order in integer value.
\param [in] value Value to reverse
\return Reversed value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __REV(uint32_t value)
{
uint32_t result;
__ASM volatile ("rev %0, %1" : "=r" (result) : "r" (value) );
return(result);
}
/** \brief Reverse byte order (16 bit)
This function reverses the byte order in two unsigned short values.
\param [in] value Value to reverse
\return Reversed value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __REV16(uint32_t value)
{
uint32_t result;
__ASM volatile ("rev16 %0, %1" : "=r" (result) : "r" (value) );
return(result);
}
/** \brief Reverse byte order in signed short value
This function reverses the byte order in a signed short value with sign extension to integer.
\param [in] value Value to reverse
\return Reversed value
*/
__attribute__( ( always_inline ) ) static __INLINE int32_t __REVSH(int32_t value)
{
uint32_t result;
__ASM volatile ("revsh %0, %1" : "=r" (result) : "r" (value) );
return(result);
}
#if (__CORTEX_M >= 0x03)
/** \brief Reverse bit order of value
This function reverses the bit order of the given value.
\param [in] value Value to reverse
\return Reversed value
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __RBIT(uint32_t value)
{
uint32_t result;
__ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) );
return(result);
}
/** \brief LDR Exclusive (8 bit)
This function performs a exclusive LDR command for 8 bit value.
\param [in] ptr Pointer to data
\return value of type uint8_t at (*ptr)
*/
__attribute__( ( always_inline ) ) static __INLINE uint8_t __LDREXB(volatile uint8_t *addr)
{
uint8_t result;
__ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) );
return(result);
}
/** \brief LDR Exclusive (16 bit)
This function performs a exclusive LDR command for 16 bit values.
\param [in] ptr Pointer to data
\return value of type uint16_t at (*ptr)
*/
__attribute__( ( always_inline ) ) static __INLINE uint16_t __LDREXH(volatile uint16_t *addr)
{
uint16_t result;
__ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) );
return(result);
}
/** \brief LDR Exclusive (32 bit)
This function performs a exclusive LDR command for 32 bit values.
\param [in] ptr Pointer to data
\return value of type uint32_t at (*ptr)
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __LDREXW(volatile uint32_t *addr)
{
uint32_t result;
__ASM volatile ("ldrex %0, [%1]" : "=r" (result) : "r" (addr) );
return(result);
}
/** \brief STR Exclusive (8 bit)
This function performs a exclusive STR command for 8 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __STREXB(uint8_t value, volatile uint8_t *addr)
{
uint32_t result;
__ASM volatile ("strexb %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
return(result);
}
/** \brief STR Exclusive (16 bit)
This function performs a exclusive STR command for 16 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __STREXH(uint16_t value, volatile uint16_t *addr)
{
uint32_t result;
__ASM volatile ("strexh %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
return(result);
}
/** \brief STR Exclusive (32 bit)
This function performs a exclusive STR command for 32 bit values.
\param [in] value Value to store
\param [in] ptr Pointer to location
\return 0 Function succeeded
\return 1 Function failed
*/
__attribute__( ( always_inline ) ) static __INLINE uint32_t __STREXW(uint32_t value, volatile uint32_t *addr)
{
uint32_t result;
__ASM volatile ("strex %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
return(result);
}
/** \brief Remove the exclusive lock
This function removes the exclusive lock which is created by LDREX.
*/
__attribute__( ( always_inline ) ) static __INLINE void __CLREX(void)
{
__ASM volatile ("clrex");
}
/** \brief Signed Saturate
This function saturates a signed value.
\param [in] value Value to be saturated
\param [in] sat Bit position to saturate to (1..32)
\return Saturated value
*/
#define __SSAT(ARG1,ARG2) \
({ \
uint32_t __RES, __ARG1 = (ARG1); \
__ASM ("ssat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
__RES; \
})
/** \brief Unsigned Saturate
This function saturates an unsigned value.
\param [in] value Value to be saturated
\param [in] sat Bit position to saturate to (0..31)
\return Saturated value
*/
#define __USAT(ARG1,ARG2) \
({ \
uint32_t __RES, __ARG1 = (ARG1); \
__ASM ("usat %0, %1, %2" : "=r" (__RES) : "I" (ARG2), "r" (__ARG1) ); \
__RES; \
})
/** \brief Count leading zeros
This function counts the number of leading zeros of a data value.
\param [in] value Value to count the leading zeros
\return number of leading zeros in value
*/
__attribute__( ( always_inline ) ) static __INLINE uint8_t __CLZ(uint32_t value)
{
uint8_t result;
__ASM volatile ("clz %0, %1" : "=r" (result) : "r" (value) );
return(result);
}
#endif /* (__CORTEX_M >= 0x03) */
#elif defined ( __TASKING__ ) /*------------------ TASKING Compiler --------------*/
/* TASKING carm specific functions */
/*
* The CMSIS functions have been implemented as intrinsics in the compiler.
* Please use "carm -?i" to get an up to date list of all intrinsics,
* Including the CMSIS ones.
*/
#endif
/*@}*/ /* end of group CMSIS_Core_InstructionInterface */
#endif /* __CORE_CMINSTR_H */

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @defgroup cpu_cortexm4_common ARM Cortex-M4 common
* @ingroup cpu
* @brief Common implementations and headers for Cortex-M4 family based micro-controllers
* @{
*
* @file
* @brief Basic definitions for the Cortex-M4 common module
*
* When ever you want to do something hardware related, that is accessing MCUs registers directly,
* just include this file. It will then make sure that the MCU specific headers are included.
*
* @author Stefan Pfeiffer <stefan.pfeiffer@fu-berlin.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*/
#ifndef __CORTEXM_COMMON_H
#define __CORTEXM_COMMON_H
#include "cpu-conf.h"
/**
* For downwards compatibility with old RIOT code.
* TODO: remove once core was adjusted
*/
#include "irq.h"
#define eINT enableIRQ
#define dINT disableIRQ
/**
* @brief Macro has to be called in the beginning of each ISR
*/
#define ISR_ENTER() asm("push {LR}")
/**
* @brief Macro has to be called on each exit of an ISR
*/
#define ISR_EXIT() asm("pop {r0}"); asm("bx r0")
/**
* @brief Initialization of the CPU
*/
void cpu_init(void);
#endif /* __CORTEXM_COMMON_H */
/** @} */

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_cortexm4_common
* @{
*
* @file
* @brief Implementation of the kernels irq interface
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdint.h>
#include "arch/irq_arch.h"
#include "cpu.h"
/**
* @brief Disable all maskable interrupts
*/
unsigned int irq_arch_disable(void)
{
uint32_t mask = __get_PRIMASK();
__disable_irq();
return mask;
}
/**
* @brief Enable all maskable interrupts
*/
unsigned int irq_arch_enable(void)
{
__enable_irq();
return __get_PRIMASK();
}
/**
* @brief Restore the state of the IRQ flags
*/
void irq_arch_restore(unsigned int state)
{
__set_PRIMASK(state);
}
/**
* @brief See if the current context is inside an ISR
*/
int irq_arch_in(void)
{
return (__get_IPSR() & 0xFF);
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_cortexm4_common
* @{
*
* @file
* @brief Implementation of the kernel's architecture dependent thread interface
*
* @author Stefan Pfeiffer <stefan.pfeiffer@fu-berlin.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdio.h>
#include "arch/thread_arch.h"
#include "sched.h"
#include "thread.h"
#include "irq.h"
#include "cpu.h"
#include "kernel_internal.h"
/**
* @name noticeable marker marking the beginning of a stack segment
*
* This marker is used e.g. by *thread_arch_start_threading* to identify the stacks start.
*/
#define STACK_MARKER (0x77777777)
/**
* @name ARM Cortex-M specific exception return value, that triggers the return to the task mode
* stack pointer
*/
#define EXCEPT_RET_TASK_MODE (0xfffffffd)
/**
* Cortex-M knows stacks and handles register backups, so use different stack frame layout
*
* TODO: How to handle different Cortex-Ms? Code is so far valid for M3 and M4 without FPU
*
* Layout with storage of floating point registers (applicable for Cortex-M4):
* ------------------------------------------------------------------------------------------------------------------------------------
* | R0 | R1 | R2 | R3 | LR | PC | xPSR | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 | S10 | S11 | S12 | S13 | S14 | S15 | FPSCR |
* ------------------------------------------------------------------------------------------------------------------------------------
*
* Layout without floating point registers:
* --------------------------------------
* | R0 | R1 | R2 | R3 | LR | PC | xPSR |
* --------------------------------------
*
*/
char *thread_arch_stack_init(void *(*task_func)(void *),
void *arg,
void *stack_start,
int stack_size)
{
uint32_t *stk;
stk = (uint32_t *)(stack_start + stack_size);
/* marker */
stk--;
*stk = STACK_MARKER;
/* TODO: fix FPU handling for Cortex-M4 */
/*
stk--;
*stk = (unsigned int) 0;
*/
/* S0 - S15 */
/*
for (int i = 15; i >= 0; i--) {
stk--;
*stk = i;
}
*/
/* FIXME xPSR */
stk--;
*stk = (uint32_t) 0x01000200;
/* program counter */
stk--;
*stk = (uint32_t) task_func;
/* link register, jumped to when thread exits */
stk--;
*stk = (uint32_t) sched_task_exit;
/* r12 */
stk--;
*stk = (uint32_t) 0;
/* r1 - r3 */
for (int i = 3; i >= 1; i--) {
stk--;
*stk = i;
}
/* r0 -> thread function parameter */
stk--;
*stk = (uint32_t) arg;
/* r11 - r4 */
for (int i = 11; i >= 4; i--) {
stk--;
*stk = i;
}
/* lr means exception return code */
stk--;
*stk = EXCEPT_RET_TASK_MODE; /* return to task-mode main stack pointer */
return (char*) stk;
}
void thread_arch_stack_print(void)
{
int count = 0;
uint32_t *sp = (uint32_t *)sched_active_thread->sp;
printf("printing the current stack of thread %i\n", thread_getpid());
printf(" address: data:\n");
do {
printf(" 0x%08x: 0x%08x\n", (unsigned int)sp, (unsigned int)*sp);
sp++;
count++;
} while (*sp != STACK_MARKER);
printf("current stack size: %i byte\n", count);
}
__attribute__((naked)) void NORETURN thread_arch_start_threading(void)
{
/* switch to user mode use PSP instead of MSP in ISR Mode*/
CONTROL_Type mode;
mode.w = __get_CONTROL();
mode.b.SPSEL = 1; /* select PSP */
mode.b.nPRIV = 0; /* privilege */
__set_CONTROL(mode.w);
/* enable IRQs to make sure the SVC interrupt is reachable */
enableIRQ();
/* trigger the SVC interrupt which will get and execute the next thread */
asm("svc 0x01");
UNREACHABLE();
}
void thread_arch_yield(void)
{
/* trigger the PENDSV interrupt to run scheduler and schedule new thread if applicable */
SCB->ICSR |= SCB_ICSR_PENDSVSET_Msk;
}
__attribute__((always_inline)) static __INLINE void context_save(void)
{
/* {r0-r3,r12,LR,PC,xPSR} are saved automatically on exception entry */
/* save unsaved registers */
asm("mrs r0, psp" ); /* get stack pointer from user mode */
asm("stmdb r0!,{r4-r11}" ); /* save regs */
asm("stmdb r0!,{lr}" ); /* exception return value */
/* asm("vstmdb sp!, {s16-s31}" ); */ /* TODO save FPU registers if needed */
asm("ldr r1, =sched_active_thread" ); /* load address of current tcb */
asm("ldr r1, [r1]" ); /* dereference pdc */
asm("str r0, [r1]" ); /* write r0 to pdc->sp means current threads stack pointer */
}
__attribute__((always_inline)) static __INLINE void context_restore(void)
{
asm("ldr r0, =sched_active_thread" ); /* load address of current TCB */
asm("ldr r0, [r0]" ); /* dereference TCB */
asm("ldr r1, [r0]" ); /* load tcb->sp to register 1 */
asm("ldmia r1!, {r0}" ); /* restore exception return value from stack */
/* asm("pop {s16-s31}" ); */ /* TODO load FPU register if needed depends on r0 exret */
asm("ldmia r1!, {r4-r11}" ); /* restore other registers */
asm("msr psp, r1" ); /* restore PSP register (user mode SP)*/
asm("bx r0" ); /* load exception return value to PC causes end of exception*/
/* {r0-r3,r12,LR,PC,xPSR} are restored automatically on exception return */
}
/**
* @brief The svc is used for running the scheduler and scheduling a new task during start-up or
* after a thread has exited
*/
__attribute__((naked)) void isr_svc(void)
{
sched_run();
context_restore();
}
/**
* @brief All task switching activity is carried out int the pendSV interrupt
*/
__attribute__((naked)) void isr_pendsv(void)
{
context_save();
sched_run();
context_restore();
}

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# define the module that is build
MODULE = cpu
# add a list of subdirectories, that should also be build
DIRS = periph $(CORTEX_M4_COMMON)
include $(RIOTBASE)/Makefile.base

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# this CPU implementation is using the explicit core/CPU interface
export CFLAGS += -DCOREIF_NG=1
# export the peripheral drivers to be linked into the final binary
export USEMODULE += periph
# tell the build system that the CPU depends on the Cortex-M common files
export USEMODULE += cortex-m4_common
# define path to cortex-m common module, which is needed for this CPU
export CORTEX_M4_COMMON = $(RIOTCPU)/cortex-m4_common/
# CPU depends on the cortex-m common module, so include it
include $(CORTEX_M4_COMMON)Makefile.include
# define the linker script to use for this CPU
export LINKERSCRIPT = $(RIOTCPU)/$(CPU)/$(CPU_MODEL)_linkerscript.ld
#export the CPU model
MODEL = $(shell echo $(CPU_MODEL)|tr 'a-z' 'A-Z')
export CFLAGS += -DCPU_MODEL_$(MODEL)
# include CPU specific includes
export INCLUDES += -I$(RIOTCPU)/$(CPU)/include
# add the CPU specific system calls implementations for the linker
export UNDEF += $(BINDIR)cpu/syscalls.o
export UNDEF += $(BINDIR)cpu/startup.o

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Implementation of the CPU initialization
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @}
*/
#include <stdint.h>
#include "cpu.h"
#include "periph_conf.h"
/**
* @name Pattern to write into the Coprocessor Access Control Register to allow full FPU access
*/
#define FULL_FPU_ACCESS (0x00f00000)
static void cpu_clock_init(void);
/**
* @brief Initialize the CPU, set IRQ priorities
*/
void cpu_init(void)
{
/* give full access to the FPU */
SCB->CPACR |= (uint32_t)FULL_FPU_ACCESS;
/* configure the vector table location to internal flash */
SCB->VTOR = FLASH_BASE;
/* initialize the clock system */
cpu_clock_init();
/* set pendSV interrupt to lowest possible priority */
NVIC_SetPriority(PendSV_IRQn, 0xff);
}
/**
* @brief Configure the controllers clock system
*
* The clock initialization make the following assumptions:
* - the external HSE clock from an external oscillator is used as base clock
* - the internal PLL circuit is used for clock refinement
*
* Use the following formulas to calculate the needed values:
*
* SYSCLK = ((HSE_VALUE / CLOCK_PLL_M) * CLOCK_PLL_N) / CLOCK_PLL_P
* USB, SDIO and RNG Clock = ((HSE_VALUE / CLOCK_PLL_M) * CLOCK_PLL_N) / CLOCK_PLL_Q
*
* The actual used values are specified in the board's `periph_conf.h` file.
*
* NOTE: currently there is not timeout for initialization of PLL and other locks
* -> when wrong values are chosen, the initialization could stall
*/
static void cpu_clock_init(void)
{
/* configure the HSE clock */
/* enable the HSI clock */
RCC->CR |= RCC_CR_HSION;
/* reset clock configuration register */
RCC->CFGR = 0;
/* disable HSE, CSS and PLL */
RCC->CR &= ~(RCC_CR_HSEON | RCC_CR_HSEBYP | RCC_CR_CSSON | RCC_CR_PLLON);
/* disable all clock interrupts */
RCC->CIR = 0;
/* enable the HSE clock */
RCC->CR |= RCC_CR_HSEON;
/* wait for HSE to be ready */
while (!(RCC->CR & RCC_CR_HSERDY));
/* setup power module */
/* enable the power module */
RCC->APB1ENR |= RCC_APB1ENR_PWREN;
/* set the voltage scaling to 1 to enable the maximum frequency */
PWR->CR |= PWR_CR_VOS_1;
/* setup the peripheral bus prescalers */
/* set the AHB clock divider */
RCC->CFGR &= ~RCC_CFGR_HPRE;
RCC->CFGR |= CLOCK_AHB_DIV;
/* set the APB2 (high speed) bus clock divider */
RCC->CFGR &= ~RCC_CFGR_PPRE2;
RCC->CFGR |= CLOCK_APB2_DIV;
/* set the APB1 (low speed) bus clock divider */
RCC->CFGR &= ~RCC_CFGR_PPRE1;
RCC->CFGR |= CLOCK_APB1_DIV;
/* configure the PLL */
/* reset PLL config register */
RCC->PLLCFGR = 0;
/* set HSE as source for the PLL */
RCC->PLLCFGR |= RCC_PLLCFGR_PLLSRC_HSE;
/* set division factor for main PLL input clock */
RCC->PLLCFGR |= (CLOCK_PLL_M & 0x3F);
/* set main PLL multiplication factor for VCO */
RCC->PLLCFGR |= (CLOCK_PLL_N & 0x1FF) << 6;
/* set main PLL division factor for main system clock */
RCC->PLLCFGR |= (((CLOCK_PLL_P & 0x03) >> 1) - 1) << 16;
/* set main PLL division factor for USB OTG FS, SDIO and RNG clocks */
RCC->PLLCFGR |= (CLOCK_PLL_Q & 0x0F) << 24;
/* enable PLL again */
RCC->CR |= RCC_CR_PLLON;
/* wait until PLL is stable */
while(!(RCC->CR & RCC_CR_PLLRDY));
/* configure flash latency */
/* reset flash access control register */
FLASH->ACR = 0;
/* enable instruction cache */
FLASH->ACR |= FLASH_ACR_ICEN;
/* enable data cache */
FLASH->ACR |= FLASH_ACR_DCEN;
/* enable pre-fetch buffer */
// FLASH->ACR |= FLASH_ACR_PRFTEN;
/* set flash latency */
FLASH->ACR &= ~FLASH_ACR_LATENCY;
FLASH->ACR |= CLOCK_FLASH_LATENCY;
/* configure the sysclock and the peripheral clocks */
/* set sysclock to be driven by the PLL clock */
RCC->CFGR &= ~RCC_CFGR_SW;
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* wait for sysclock to be stable */
while (!(RCC->CFGR & RCC_CFGR_SWS_PLL));
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Implementation of the kernels hwtimer interface
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include "arch/hwtimer_arch.h"
#include "board.h"
#include "periph/timer.h"
#include "thread.h"
/**
* @brief Callback function that is given to the low-level timer
*
* @param[in] channel the channel of the low-level timer that was triggered
*/
void irq_handler(int channel);
/**
* @brief Hold a reference to the hwtimer callback
*/
void (*timeout_handler)(int);
void hwtimer_arch_init(void (*handler)(int), uint32_t fcpu)
{
timeout_handler = handler;
timer_init(HW_TIMER, 1, &irq_handler);
}
void hwtimer_arch_enable_interrupt(void)
{
timer_irq_enable(HW_TIMER);
}
void hwtimer_arch_disable_interrupt(void)
{
timer_irq_disable(HW_TIMER);
}
void hwtimer_arch_set(unsigned long offset, short timer)
{
timer_set(HW_TIMER, timer, offset);
}
void hwtimer_arch_set_absolute(unsigned long value, short timer)
{
timer_set_absolute(HW_TIMER, timer, value);
}
void hwtimer_arch_unset(short timer)
{
timer_clear(HW_TIMER, timer);
}
unsigned long hwtimer_arch_now(void)
{
return timer_read(HW_TIMER);
}
void irq_handler(int channel)
{
timeout_handler((short)(channel));
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @defgroup cpu_stm32f4 STM32F4
* @ingroup cpu
* @brief CPU specific implementations for the STM32F4
* @{
*
* @file
* @brief Implementation specific CPU configuration options
*
* @author Hauke Petersen <hauke.peterse@fu-berlin.de>
*/
#ifndef __CPU_CONF_H
#define __CPU_CONF_H
#ifdef CPU_MODEL_STM32F407VG
#include "stm32f407xx.h"
#endif
/**
* @name Kernel configuration
*
* TODO: measure and adjust for the Cortex-M4f
* @{
*/
#define KERNEL_CONF_STACKSIZE_PRINTF (2500)
#ifndef KERNEL_CONF_STACKSIZE_DEFAULT
#define KERNEL_CONF_STACKSIZE_DEFAULT (2500)
#endif
#define KERNEL_CONF_STACKSIZE_IDLE (512)
/** @} */
/**
* @name UART0 buffer size definition for compatibility reasons
*
* TODO: remove once the remodeling of the uart0 driver is done
* @{
*/
#ifndef UART0_BUFSIZE
#define UART0_BUFSIZE (128)
#endif
/** @} */
#endif /* __CPU_CONF_H */
/** @} */

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief CPU specific hwtimer configuration options
*
* @author Hauke Petersen <hauke.peterse@fu-berlin.de>
*/
#ifndef __HWTIMER_CPU_H
#define __HWTIMER_CPU_H
/**
* @name Hardware timer configuration
* @{
*/
#define HWTIMER_MAXTIMERS 4 /**< the CPU implementation supports 4 HW timers */
#define HWTIMER_SPEED 1000000 /**< the HW timer runs with 1MHz */
#define HWTIMER_MAXTICKS (0xFFFFFFFF) /**< 32-bit timer */
/** @} */
#endif /* __HWTIMER_CPU_H */
/** @} */

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Implementation of the kernel's architecture dependent IO interface
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include "board.h"
#include "arch/io_arch.h"
#include "periph/uart.h"
int io_arch_puts(char *data, int size)
{
for (int i = 0; i < size; i++) {
uart_write_blocking(STDIO, data[i]);
}
return size;
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Implementation of the kernels power management interface
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include "arch/lpm_arch.h"
void lpm_arch_init(void)
{
/* TODO */
}
enum lpm_mode lpm_arch_set(enum lpm_mode target)
{
/* TODO */
return 0;
}
enum lpm_mode lpm_arch_get(void)
{
/* TODO */
return 0;
}
void lpm_arch_awake(void)
{
/* TODO */
}
void lpm_arch_begin_awake(void)
{
/* TODO */
}
void lpm_arch_end_awake(void)
{
/* TODO */
}

3
cpu/stm32f4/periph/Makefile Normal file
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MODULE = periph
include $(RIOTBASE)/Makefile.base

758
cpu/stm32f4/periph/gpio.c Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Low-level GPIO driver implementation
*
* @author Hauke Petersen <mail@haukepetersen.de>
*
* @}
*/
#include "cpu.h"
#include "sched.h"
#include "thread.h"
#include "periph/gpio.h"
#include "periph_conf.h"
typedef struct {
void (*cb)(void);
} gpio_state_t;
/**
* @brief Unified IRQ handler shared by all interrupt routines
*
* @param[in] dev the device that triggered the interrupt
*/
static inline void irq_handler(gpio_t dev);
/**
* @brief Hold one callback function pointer for each gpio device
*/
static gpio_state_t config[GPIO_NUMOF];
int gpio_init_out(gpio_t dev, gpio_pp_t pushpull)
{
GPIO_TypeDef *port;
uint32_t pin;
switch (dev) {
#if GPIO_0_EN
case GPIO_0:
GPIO_0_CLKEN();
port = GPIO_0_PORT;
pin = GPIO_0_PIN;
break;
#endif
#if GPIO_1_EN
case GPIO_1:
GPIO_1_CLKEN();
port = GPIO_1_PORT;
pin = GPIO_1_PIN;
break;
#endif
#if GPIO_2_EN
case GPIO_2:
GPIO_2_CLKEN();
port = GPIO_2_PORT;
pin = GPIO_2_PIN;
break;
#endif
#if GPIO_3_EN
case GPIO_3:
GPIO_3_CLKEN();
port = GPIO_3_PORT;
pin = GPIO_3_PIN;
break;
#endif
#if GPIO_4_EN
case GPIO_4:
GPIO_4_CLKEN();
port = GPIO_4_PORT;
pin = GPIO_4_PIN;
break;
#endif
#if GPIO_5_EN
case GPIO_5:
GPIO_5_CLKEN();
port = GPIO_5_PORT;
pin = GPIO_5_PIN;
break;
#endif
#if GPIO_6_EN
case GPIO_6:
GPIO_6_CLKEN();
port = GPIO_6_PORT;
pin = GPIO_6_PIN;
break;
#endif
#if GPIO_7_EN
case GPIO_7:
GPIO_7_CLKEN();
port = GPIO_7_PORT;
pin = GPIO_7_PIN;
break;
#endif
#if GPIO_8_EN
case GPIO_8:
GPIO_8_CLKEN();
port = GPIO_8_PORT;
pin = GPIO_8_PIN;
break;
#endif
#if GPIO_9_EN
case GPIO_9:
GPIO_9_CLKEN();
port = GPIO_9_PORT;
pin = GPIO_9_PIN;
break;
#endif
#if GPIO_10_EN
case GPIO_10:
GPIO_10_CLKEN();
port = GPIO_10_PORT;
pin = GPIO_10_PIN;
break;
#endif
#if GPIO_11_EN
case GPIO_11:
GPIO_11_CLKEN();
port = GPIO_11_PORT;
pin = GPIO_11_PIN;
break;
#endif
case GPIO_UNDEFINED:
default:
return -1;
}
port->MODER &= ~(2 << (2 * pin)); /* set pin to output mode */
port->MODER |= (1 << (2 * pin));
port->OTYPER &= ~(1 << pin); /* set to push-pull configuration */
port->OSPEEDR |= (3 << (2 * pin)); /* set to high speed */
port->PUPDR &= ~(3 << (2 * pin)); /* configure push-pull resistors */
port->PUPDR |= (pushpull << (2 * pin));
port->ODR &= ~(1 << pin); /* set pin to low signal */
return 0; /* all OK */
}
int gpio_init_in(gpio_t dev, gpio_pp_t pushpull)
{
GPIO_TypeDef *port;
uint32_t pin;
switch (dev) {
#if GPIO_0_EN
case GPIO_0:
GPIO_0_CLKEN();
port = GPIO_0_PORT;
pin = GPIO_0_PIN;
break;
#endif
#if GPIO_1_EN
case GPIO_1:
GPIO_1_CLKEN();
port = GPIO_1_PORT;
pin = GPIO_1_PIN;
break;
#endif
#if GPIO_2_EN
case GPIO_2:
GPIO_2_CLKEN();
port = GPIO_2_PORT;
pin = GPIO_2_PIN;
break;
#endif
#if GPIO_3_EN
case GPIO_3:
GPIO_3_CLKEN();
port = GPIO_3_PORT;
pin = GPIO_3_PIN;
break;
#endif
#if GPIO_4_EN
case GPIO_4:
GPIO_4_CLKEN();
port = GPIO_4_PORT;
pin = GPIO_4_PIN;
break;
#endif
#if GPIO_5_EN
case GPIO_5:
GPIO_5_CLKEN();
port = GPIO_5_PORT;
pin = GPIO_5_PIN;
break;
#endif
#if GPIO_6_EN
case GPIO_6:
GPIO_6_CLKEN();
port = GPIO_6_PORT;
pin = GPIO_6_PIN;
break;
#endif
#if GPIO_7_EN
case GPIO_7:
GPIO_7_CLKEN();
port = GPIO_7_PORT;
pin = GPIO_7_PIN;
break;
#endif
#if GPIO_8_EN
case GPIO_8:
GPIO_8_CLKEN();
port = GPIO_8_PORT;
pin = GPIO_8_PIN;
break;
#endif
#if GPIO_9_EN
case GPIO_9:
GPIO_9_CLKEN();
port = GPIO_9_PORT;
pin = GPIO_9_PIN;
break;
#endif
#if GPIO_10_EN
case GPIO_10:
GPIO_10_CLKEN();
port = GPIO_10_PORT;
pin = GPIO_10_PIN;
break;
#endif
#if GPIO_11_EN
case GPIO_11:
GPIO_11_CLKEN();
port = GPIO_11_PORT;
pin = GPIO_11_PIN;
break;
#endif
case GPIO_UNDEFINED:
default:
return -1;
}
port->MODER &= ~(3 << (2 * pin)); /* configure pin as input */
port->PUPDR &= ~(3 << (2 * pin)); /* configure push-pull resistors */
port->PUPDR |= (pushpull << (2 * pin));
return 0; /* everything alright here */
}
int gpio_init_int(gpio_t dev, gpio_pp_t pushpull, gpio_flank_t flank, void (*cb)(void))
{
int res;
uint32_t pin;
res = gpio_init_in(dev, pushpull);
if (res < 0) {
return res;
}
/* enable the SYSCFG clock */
RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;
switch (dev) {
#if GPIO_0_EN
case GPIO_0:
pin = GPIO_0_PIN;
GPIO_0_EXTI_CFG();
NVIC_SetPriority(GPIO_0_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_0_IRQ);
break;
#endif
#if GPIO_1_EN
case GPIO_1:
pin = GPIO_1_PIN;
GPIO_1_EXTI_CFG();
NVIC_SetPriority(GPIO_1_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_1_IRQ);
break;
#endif
#if GPIO_2_EN
case GPIO_2:
pin = GPIO_2_PIN;
GPIO_2_EXTI_CFG();
NVIC_SetPriority(GPIO_2_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_2_IRQ);
break;
#endif
#if GPIO_3_EN
case GPIO_3:
pin = GPIO_3_PIN;
GPIO_3_EXTI_CFG();
NVIC_SetPriority(GPIO_3_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_3_IRQ);
break;
#endif
#if GPIO_4_EN
case GPIO_4:
pin = GPIO_4_PIN;
GPIO_4_EXTI_CFG();
NVIC_SetPriority(GPIO_4_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_4_IRQ);
break;
#endif
#if GPIO_5_EN
case GPIO_5:
pin = GPIO_5_PIN;
GPIO_5_EXTI_CFG();
NVIC_SetPriority(GPIO_5_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_5_IRQ);
break;
#endif
#if GPIO_6_EN
case GPIO_6:
pin = GPIO_6_PIN;
GPIO_6_EXTI_CFG();
NVIC_SetPriority(GPIO_6_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_6_IRQ);
break;
#endif
#if GPIO_7_EN
case GPIO_7:
pin = GPIO_7_PIN;
GPIO_7_EXTI_CFG();
NVIC_SetPriority(GPIO_7_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_7_IRQ);
break;
#endif
#if GPIO_8_EN
case GPIO_8:
pin = GPIO_8_PIN;
GPIO_8_EXTI_CFG();
NVIC_SetPriority(GPIO_8_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_8_IRQ);
break;
#endif
#if GPIO_9_EN
case GPIO_9:
pin = GPIO_9_PIN;
GPIO_9_EXTI_CFG();
NVIC_SetPriority(GPIO_9_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_9_IRQ);
break;
#endif
#if GPIO_10_EN
case GPIO_10:
pin = GPIO_10_PIN;
GPIO_10_EXTI_CFG();
NVIC_SetPriority(GPIO_10_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_10_IRQ);
break;
#endif
#if GPIO_11_EN
case GPIO_11:
pin = GPIO_11_PIN;
GPIO_11_EXTI_CFG();
NVIC_SetPriority(GPIO_11_IRQ, GPIO_IRQ_PRIO);
NVIC_EnableIRQ(GPIO_11_IRQ);
break;
#endif
case GPIO_UNDEFINED:
default:
return -1;
}
/* set callback */
config[dev].cb = cb;
/* configure the active edges */
switch (flank) {
case GPIO_RISING:
EXTI->RTSR |= (1 << pin);
EXTI->FTSR &= ~(1 << pin);
break;
case GPIO_FALLING:
EXTI->RTSR &= ~(1 << pin);
EXTI->FTSR |= (1 << pin);
break;
case GPIO_BOTH:
EXTI->RTSR |= (1 << pin);
EXTI->FTSR |= (1 << pin);
break;
}
/* enable interrupt for EXTI line */
EXTI->IMR |= (1 << pin);
return 0;
}
int gpio_read(gpio_t dev)
{
GPIO_TypeDef *port;
uint32_t pin;
switch (dev) {
#if GPIO_0_EN
case GPIO_0:
port = GPIO_0_PORT;
pin = GPIO_0_PIN;
break;
#endif
#if GPIO_1_EN
case GPIO_1:
port = GPIO_1_PORT;
pin = GPIO_1_PIN;
break;
#endif
#if GPIO_2_EN
case GPIO_2:
port = GPIO_2_PORT;
pin = GPIO_2_PIN;
break;
#endif
#if GPIO_3_EN
case GPIO_3:
port = GPIO_3_PORT;
pin = GPIO_3_PIN;
break;
#endif
#if GPIO_4_EN
case GPIO_4:
port = GPIO_4_PORT;
pin = GPIO_4_PIN;
break;
#endif
#if GPIO_5_EN
case GPIO_5:
port = GPIO_5_PORT;
pin = GPIO_5_PIN;
break;
#endif
#if GPIO_6_EN
case GPIO_6:
port = GPIO_6_PORT;
pin = GPIO_6_PIN;
break;
#endif
#if GPIO_7_EN
case GPIO_7:
port = GPIO_7_PORT;
pin = GPIO_7_PIN;
break;
#endif
#if GPIO_8_EN
case GPIO_8:
port = GPIO_8_PORT;
pin = GPIO_8_PIN;
break;
#endif
#if GPIO_9_EN
case GPIO_9:
port = GPIO_9_PORT;
pin = GPIO_9_PIN;
break;
#endif
#if GPIO_10_EN
case GPIO_10:
port = GPIO_10_PORT;
pin = GPIO_10_PIN;
break;
#endif
#if GPIO_11_EN
case GPIO_11:
port = GPIO_11_PORT;
pin = GPIO_11_PIN;
break;
#endif
case GPIO_UNDEFINED:
default:
return -1;
}
if (port->MODER & (3 << (pin * 2))) { /* if configured as output */
return port->ODR & (1 << pin); /* read output data register */
} else {
return port->IDR & (1 << pin); /* else read input data register */
}
}
int gpio_set(gpio_t dev)
{
switch (dev) {
#if GPIO_0_EN
case GPIO_0:
GPIO_0_PORT->ODR |= (1 << GPIO_0_PIN);
break;
#endif
#if GPIO_1_EN
case GPIO_1:
GPIO_1_PORT->ODR |= (1 << GPIO_1_PIN);
break;
#endif
#if GPIO_2_EN
case GPIO_2:
GPIO_2_PORT->ODR |= (1 << GPIO_2_PIN);
break;
#endif
#if GPIO_3_EN
case GPIO_3:
GPIO_3_PORT->ODR |= (1 << GPIO_3_PIN);
break;
#endif
#if GPIO_4_EN
case GPIO_4:
GPIO_4_PORT->ODR |= (1 << GPIO_4_PIN);
break;
#endif
#if GPIO_5_EN
case GPIO_5:
GPIO_5_PORT->ODR |= (1 << GPIO_5_PIN);
break;
#endif
#if GPIO_6_EN
case GPIO_6:
GPIO_6_PORT->ODR |= (1 << GPIO_6_PIN);
break;
#endif
#if GPIO_7_EN
case GPIO_7:
GPIO_7_PORT->ODR |= (1 << GPIO_7_PIN);
break;
#endif
#if GPIO_8_EN
case GPIO_8:
GPIO_8_PORT->ODR |= (1 << GPIO_8_PIN);
break;
#endif
#if GPIO_9_EN
case GPIO_9:
GPIO_9_PORT->ODR |= (1 << GPIO_9_PIN);
break;
#endif
#if GPIO_10_EN
case GPIO_10:
GPIO_10_PORT->ODR |= (1 << GPIO_10_PIN);
break;
#endif
#if GPIO_11_EN
case GPIO_11:
GPIO_11_PORT->ODR |= (1 << GPIO_11_PIN);
#endif
break;
case GPIO_UNDEFINED:
default:
return -1;
}
return 0;
}
int gpio_clear(gpio_t dev)
{
switch (dev) {
#if GPIO_0_EN
case GPIO_0:
GPIO_0_PORT->ODR &= ~(1 << GPIO_0_PIN);
break;
#endif
#if GPIO_1_EN
case GPIO_1:
GPIO_1_PORT->ODR &= ~(1 << GPIO_1_PIN);
break;
#endif
#if GPIO_2_EN
case GPIO_2:
GPIO_2_PORT->ODR &= ~(1 << GPIO_2_PIN);
break;
#endif
#if GPIO_3_EN
case GPIO_3:
GPIO_3_PORT->ODR &= ~(1 << GPIO_3_PIN);
break;
#endif
#if GPIO_4_EN
case GPIO_4:
GPIO_4_PORT->ODR &= ~(1 << GPIO_4_PIN);
break;
#endif
#if GPIO_5_EN
case GPIO_5:
GPIO_5_PORT->ODR &= ~(1 << GPIO_5_PIN);
break;
#endif
#if GPIO_6_EN
case GPIO_6:
GPIO_6_PORT->ODR &= ~(1 << GPIO_6_PIN);
break;
#endif
#if GPIO_7_EN
case GPIO_7:
GPIO_7_PORT->ODR &= ~(1 << GPIO_7_PIN);
break;
#endif
#if GPIO_8_EN
case GPIO_8:
GPIO_8_PORT->ODR &= ~(1 << GPIO_8_PIN);
break;
#endif
#if GPIO_9_EN
case GPIO_9:
GPIO_9_PORT->ODR &= ~(1 << GPIO_9_PIN);
break;
#endif
#if GPIO_10_EN
case GPIO_10:
GPIO_10_PORT->ODR &= ~(1 << GPIO_10_PIN);
break;
#endif
#if GPIO_11_EN
case GPIO_11:
GPIO_11_PORT->ODR &= ~(1 << GPIO_11_PIN);
break;
#endif
case GPIO_UNDEFINED:
default:
return -1;
}
return 0;
}
int gpio_toggle(gpio_t dev)
{
if (gpio_read(dev)) {
return gpio_clear(dev);
} else {
return gpio_set(dev);
}
}
int gpio_write(gpio_t dev, int value)
{
if (value) {
return gpio_set(dev);
} else {
return gpio_clear(dev);
}
}
static inline void irq_handler(gpio_t dev)
{
config[dev].cb();
if (sched_context_switch_request) {
thread_yield();
}
}
__attribute__((naked))
void isr_exti0(void)
{
ISR_ENTER();
if (EXTI->PR & EXTI_PR_PR0) {
EXTI->PR |= EXTI_PR_PR0; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_0);
}
ISR_EXIT();
}
__attribute__((naked))
void isr_exti1(void)
{
ISR_ENTER();
if (EXTI->PR & EXTI_PR_PR1) {
EXTI->PR |= EXTI_PR_PR1; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_1);
}
ISR_EXIT();
}
__attribute__((naked))
void isr_exti2(void)
{
ISR_ENTER();
if (EXTI->PR & EXTI_PR_PR2) {
EXTI->PR |= EXTI_PR_PR2; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_2);
}
ISR_EXIT();
}
__attribute__((naked))
void isr_exti3(void)
{
ISR_ENTER();
if (EXTI->PR & EXTI_PR_PR3) {
EXTI->PR |= EXTI_PR_PR3; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_3);
}
ISR_EXIT();
}
__attribute__((naked))
void isr_exti4(void)
{
ISR_ENTER();
if (EXTI->PR & EXTI_PR_PR4) {
EXTI->PR |= EXTI_PR_PR4; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_4);
}
ISR_EXIT();
}
__attribute__((naked))
void isr_exti9_5(void)
{
ISR_ENTER();
if (EXTI->PR & EXTI_PR_PR5) {
EXTI->PR |= EXTI_PR_PR5; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_5);
}
if (EXTI->PR & EXTI_PR_PR6) {
EXTI->PR |= EXTI_PR_PR6; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_6);
}
if (EXTI->PR & EXTI_PR_PR7) {
EXTI->PR |= EXTI_PR_PR7; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_7);
}
if (EXTI->PR & EXTI_PR_PR8) {
EXTI->PR |= EXTI_PR_PR8; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_8);
}
if (EXTI->PR & EXTI_PR_PR9) {
EXTI->PR |= EXTI_PR_PR9; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_9);
}
ISR_EXIT();
}
__attribute__((naked))
void isr_exti15_10(void)
{
ISR_ENTER();
if (EXTI->PR & EXTI_PR_PR10) {
EXTI->PR |= EXTI_PR_PR10; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_10);
}
if (EXTI->PR & EXTI_PR_PR11) {
EXTI->PR |= EXTI_PR_PR11; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_11);
}
if (EXTI->PR & EXTI_PR_PR12) {
EXTI->PR |= EXTI_PR_PR12; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_12);
}
if (EXTI->PR & EXTI_PR_PR13) {
EXTI->PR |= EXTI_PR_PR13; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_13);
}
if (EXTI->PR & EXTI_PR_PR14) {
EXTI->PR |= EXTI_PR_PR14; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_14);
}
if (EXTI->PR & EXTI_PR_PR15) {
EXTI->PR |= EXTI_PR_PR15; /* clear status bit by writing a 1 to it */
irq_handler(GPIO_IRQ_15);
}
ISR_EXIT();
}

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cpu/stm32f4/periph/timer.c Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Low-level timer driver implementation
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdlib.h>
#include "cpu.h"
#include "board.h"
#include "sched.h"
#include "thread.h"
#include "periph_conf.h"
#include "periph/timer.h"
/** Unified IRQ handler for all timers */
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev);
/** Type for timer state */
typedef struct {
void (*cb)(int);
} timer_conf_t;
/** Timer state memory */
timer_conf_t config[TIMER_NUMOF];
int timer_init(tim_t dev, unsigned int ticks_per_us, void (*callback)(int))
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
/* enable timer peripheral clock */
TIMER_0_CLKEN();
/* set timer's IRQ priority */
NVIC_SetPriority(TIMER_0_IRQ_CHAN, TIMER_IRQ_PRIO);
/* select timer */
timer = TIMER_0_DEV;
timer->PSC = TIMER_0_PRESCALER * ticks_per_us;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
/* enable timer peripheral clock */
TIMER_1_CLKEN();
/* set timer's IRQ priority */
NVIC_SetPriority(TIMER_1_IRQ_CHAN, TIMER_IRQ_PRIO);
/* select timer */
timer = TIMER_1_DEV;
timer->PSC = TIMER_0_PRESCALER * ticks_per_us;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
/* set callback function */
config[dev].cb = callback;
/* set timer to run in counter mode */
timer->CR1 = 0;
timer->CR2 = 0;
/* set auto-reload and prescaler values and load new values */
timer->EGR |= TIM_EGR_UG;
/* enable the timer's interrupt */
timer_irq_enable(dev);
/* start the timer */
timer_start(dev);
return 0;
}
int timer_set(tim_t dev, int channel, unsigned int timeout)
{
int now = timer_read(dev);
return timer_set_absolute(dev, channel, now + timeout - 1);
}
int timer_set_absolute(tim_t dev, int channel, unsigned int value)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
timer = TIMER_1_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
switch (channel) {
case 0:
timer->CCR1 = value;
timer->SR &= ~TIM_SR_CC1IF;
timer->DIER |= TIM_DIER_CC1IE;
break;
case 1:
timer->CCR2 = value;
timer->SR &= ~TIM_SR_CC2IF;
timer->DIER |= TIM_DIER_CC2IE;
break;
case 2:
timer->CCR3 = value;
timer->SR &= ~TIM_SR_CC3IF;
timer->DIER |= TIM_DIER_CC3IE;
break;
case 3:
timer->CCR4 = value;
timer->SR &= ~TIM_SR_CC4IF;
timer->DIER |= TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
int timer_clear(tim_t dev, int channel)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
timer = TIMER_1_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
switch (channel) {
case 0:
timer->DIER &= ~TIM_DIER_CC1IE;
break;
case 1:
timer->DIER &= ~TIM_DIER_CC2IE;
break;
case 2:
timer->DIER &= ~TIM_DIER_CC3IE;
break;
case 3:
timer->DIER &= ~TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
unsigned int timer_read(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
return TIMER_0_DEV->CNT;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
return TIMER_1_DEV->CNT;
break;
#endif
case TIMER_UNDEFINED:
default:
return 0;
}
}
void timer_start(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 |= TIM_CR1_CEN;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
TIMER_1_DEV->CR1 |= TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_stop(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 &= ~TIM_CR1_CEN;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
TIMER_1_DEV->CR1 &= ~TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_enable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_EnableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
#if TIMER_1_EN
case TIMER_1:
NVIC_EnableIRQ(TIMER_1_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_disable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_DisableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
#if TIMER_1_EN
case TIMER_1:
NVIC_DisableIRQ(TIMER_1_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_reset(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CNT = 0;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
TIMER_1_DEV->CNT = 0;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
__attribute__ ((naked)) void TIMER_0_ISR(void)
{
ISR_ENTER();
irq_handler(TIMER_0, TIMER_0_DEV);
ISR_EXIT();
}
__attribute__ ((naked)) void TIMER_1_ISR(void)
{
ISR_ENTER();
irq_handler(TIMER_1, TIMER_1_DEV);
ISR_EXIT();
}
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev)
{
if (dev->SR & TIM_SR_CC1IF) {
dev->DIER &= ~TIM_DIER_CC1IE;
dev->SR &= ~TIM_SR_CC1IF;
config[timer].cb(0);
}
else if (dev->SR & TIM_SR_CC2IF) {
dev->DIER &= ~TIM_DIER_CC2IE;
dev->SR &= ~TIM_SR_CC2IF;
config[timer].cb(1);
}
else if (dev->SR & TIM_SR_CC3IF) {
dev->DIER &= ~TIM_DIER_CC3IE;
dev->SR &= ~TIM_SR_CC3IF;
config[timer].cb(2);
}
else if (dev->SR & TIM_SR_CC4IF) {
dev->DIER &= ~TIM_DIER_CC4IE;
dev->SR &= ~TIM_SR_CC4IF;
config[timer].cb(3);
}
if (sched_context_switch_request) {
thread_yield();
}
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Low-level UART driver implementation
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <math.h>
#include "cpu.h"
#include "thread.h"
#include "sched.h"
#include "periph_conf.h"
#include "periph/uart.h"
/**
* @brief Each UART device has to store two callbacks.
*/
typedef struct {
void (*rx_cb)(char);
void (*tx_cb)(void);
} uart_conf_t;
/**
* @brief Unified interrupt handler for all UART devices
*
* @param uartnum the number of the UART that triggered the ISR
* @param uart the UART device that triggered the ISR
*/
static inline void irq_handler(uart_t uartnum, USART_TypeDef *uart);
/**
* @brief Allocate memory to store the callback functions.
*/
static uart_conf_t config[UART_NUMOF];
int uart_init(uart_t uart, uint32_t baudrate, void (*rx_cb)(char), void (*tx_cb)(void))
{
/* do basic initialization */
int res = uart_init_blocking(uart, baudrate);
if (res < 0) {
return res;
}
/* remember callback addresses */
config[uart].rx_cb = rx_cb;
config[uart].tx_cb = tx_cb;
/* enable receive interrupt */
switch (uart) {
#if UART_0_EN
case UART_0:
NVIC_SetPriority(UART_0_IRQ_CHAN, UART_IRQ_PRIO);
NVIC_EnableIRQ(UART_0_IRQ_CHAN);
UART_0_DEV->CR1 |= USART_CR1_RXNEIE;
break;
#endif
#if UART_1_EN
case UART_1:
NVIC_SetPriority(UART_1_IRQ_CHAN, UART_IRQ_PRIO);
NVIC_EnableIRQ(UART_1_IRQ_CHAN);
UART_1_DEV->CR1 |= USART_CR1_RXNEIE;
break;
#endif
case UART_UNDEFINED:
default:
return -2;
break;
}
return 0;
}
int uart_init_blocking(uart_t uart, uint32_t baudrate)
{
USART_TypeDef *dev;
GPIO_TypeDef *port;
uint32_t tx_pin;
uint32_t rx_pin;
uint8_t af;
float clk;
float divider;
uint16_t mantissa;
uint8_t fraction;
switch (uart) {
#if UART_0_EN
case UART_0:
dev = UART_0_DEV;
port = UART_0_PORT;
clk = UART_0_CLK;
tx_pin = UART_0_TX_PIN;
rx_pin = UART_0_RX_PIN;
af = UART_0_AF;
UART_0_CLKEN();
UART_0_PORT_CLKEN();
break;
#endif
#if UART_1_EN
case UART_1:
dev = UART_1_DEV;
port = UART_1_PORT;
clk = UART_1_CLK;
tx_pin = UART_1_TX_PIN;
rx_pin = UART_1_RX_PIN;
af = UART_1_AF;
UART_1_CLKEN();
UART_1_PORT_CLKEN();
break;
#endif
case UART_UNDEFINED:
default:
return -1;
}
/* configure RX and TX pins, set pin to use alternative function mode */
port->MODER &= ~(3 << (rx_pin * 2) | 3 << (tx_pin * 2));
port->MODER |= 2 << (rx_pin * 2) | 2 << (tx_pin * 2);
/* and assign alternative function */
if (rx_pin < 8) {
port->AFR[0] &= ~(0xf << (rx_pin * 4));
port->AFR[0] |= af << (rx_pin * 4);
}
else {
port->AFR[1] &= ~(0xf << ((rx_pin - 8) * 4));
port->AFR[1] |= af << ((rx_pin - 8) * 4);
}
if (tx_pin < 8) {
port->AFR[0] &= ~(0xf << (tx_pin * 4));
port->AFR[0] |= af << (tx_pin * 4);
}
else {
port->AFR[1] &= ~(0xf << ((tx_pin - 8) * 4));
port->AFR[1] |= af << ((tx_pin - 8) * 4);
}
/* configure UART to mode 8N1 with given baudrate */
divider = clk / (16 * baudrate);
mantissa = (uint16_t)divider;
fraction = (uint8_t)((divider - mantissa) * 16);
dev->BRR = ((mantissa & 0x0fff) << 4) | (0x0f & fraction);
/* enable receive and transmit mode */
dev->CR3 = 0;
dev->CR2 = 0;
dev->CR1 = USART_CR1_UE | USART_CR1_TE | USART_CR1_RE;
return 0;
}
void uart_tx_begin(uart_t uart)
{
switch (uart) {
#if UART_0_EN
case UART_0:
UART_0_DEV->CR1 |= USART_CR1_TXEIE;
break;
#endif
#if UART_1_EN
case UART_1:
UART_1_DEV->CR1 |= USART_CR1_TXEIE;
break;
#endif
case UART_UNDEFINED:
default:
break;
}
}
void uart_tx_end(uart_t uart)
{
switch (uart) {
#if UART_0_EN
case UART_0:
UART_0_DEV->CR1 &= ~USART_CR1_TXEIE;
break;
#endif
#if UART_1_EN
case UART_1:
UART_1_DEV->CR1 &= ~USART_CR1_TXEIE;
break;
#endif
case UART_UNDEFINED:
default:
break;
}
}
int uart_write(uart_t uart, char data)
{
USART_TypeDef *dev;
switch (uart) {
#if UART_0_EN
case UART_0:
dev = UART_0_DEV;
break;
#endif
#if UART_1_EN
case UART_1:
dev = UART_1_DEV;
break;
#endif
case UART_UNDEFINED:
default:
return -2;
break;
}
if (dev->SR & USART_SR_TXE) {
dev->DR = (uint8_t)data;
}
return 0;
}
int uart_read_blocking(uart_t uart, char *data)
{
USART_TypeDef *dev;
switch (uart) {
#if UART_0_EN
case UART_0:
dev = UART_0_DEV;
break;
#endif
#if UART_1_EN
case UART_1:
dev = UART_1_DEV;
break;
#endif
case UART_UNDEFINED:
default:
return -2;
break;
}
while (!(dev->SR & USART_SR_RXNE));
*data = (char)dev->DR;
return 1;
}
int uart_write_blocking(uart_t uart, char data)
{
USART_TypeDef *dev;
switch (uart) {
#if UART_0_EN
case UART_0:
dev = UART_0_DEV;
break;
#endif
#if UART_1_EN
case UART_1:
dev = UART_1_DEV;
break;
#endif
case UART_UNDEFINED:
default:
return -2;
break;
}
while (!(dev->SR & USART_SR_TXE));
dev->DR = (uint8_t)data;
return 1;
}
__attribute__((naked))
void UART_0_ISR(void)
{
ISR_ENTER();
irq_handler(UART_0, UART_0_DEV);
ISR_EXIT();
}
__attribute__((naked))
void UART_1_ISR(void)
{
ISR_ENTER();
irq_handler(UART_1, UART_1_DEV);
ISR_EXIT();
}
static inline void irq_handler(uint8_t uartnum, USART_TypeDef *dev)
{
if (dev->SR & USART_SR_RXNE) {
char data = (char)dev->DR;
config[uartnum].rx_cb(data);
}
else if (dev->SR & USART_SR_TXE) {
config[uartnum].tx_cb();
}
if (sched_context_switch_request) {
thread_yield();
}
}

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cpu/stm32f4/reboot_arch.c Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Implementation of the kernels reboot interface
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdio.h>
#include "arch/reboot_arch.h"
#include "cpu.h"
int reboot_arch(int mode)
{
printf("Going into reboot, mode %i\n", mode);
NVIC_SystemReset();
return 0;
}

307
cpu/stm32f4/startup.c Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Startup code and interrupt vector definition
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdint.h>
/**
* memory markers as defined in the linker script
*/
extern uint32_t _sfixed;
extern uint32_t _efixed;
extern uint32_t _etext;
extern uint32_t _srelocate;
extern uint32_t _erelocate;
extern uint32_t _szero;
extern uint32_t _ezero;
extern uint32_t _sstack;
extern uint32_t _estack;
/**
* @brief functions for initializing the board, std-lib and kernel
*/
extern void board_init(void);
extern void kernel_init(void);
extern void __libc_init_array(void);
/**
* @brief This function is the entry point after a system reset
*
* After a system reset, the following steps are necessary and carried out:
* 1. load data section from flash to ram
* 2. overwrite uninitialized data section (BSS) with zeros
* 3. initialize the newlib
* 4. initialize the board (sync clock, setup std-IO)
* 5. initialize and start RIOTs kernel
*/
void reset_handler(void)
{
uint32_t *dst;
uint32_t *src = &_etext;
/* load data section from flash to ram */
for (dst = &_srelocate; dst < &_erelocate; ) {
*(dst++) = *(src++);
}
/* default bss section to zero */
for (dst = &_szero; dst < &_ezero; ) {
*(dst++) = 0;
}
/* initialize the board and startup the kernel */
board_init();
/* initialize std-c library (this should be done after board_init) */
__libc_init_array();
/* startup the kernel */
kernel_init();
}
/**
* @brief Default handler is called in case no interrupt handler was defined
*/
void dummy_handler(void)
{
while (1) {asm ("nop");}
}
void isr_nmi(void)
{
while (1) {asm ("nop");}
}
void isr_mem_manage(void)
{
while (1) {asm ("nop");}
}
void isr_debug_mon(void)
{
while (1) {asm ("nop");}
}
void isr_hard_fault(void)
{
while (1) {asm ("nop");}
}
void isr_bus_fault(void)
{
while (1) {asm ("nop");}
}
void isr_usage_fault(void)
{
while (1) {asm ("nop");}
}
/* Cortex-M specific interrupt vectors */
void isr_svc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_pendsv(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_systick(void) __attribute__ ((weak, alias("dummy_handler")));
/* STM32F4 specific interrupt vector */
void isr_wwdg(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_pvd(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tamp_stamp(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rtc_wkup(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_flash(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rcc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream6(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_adc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can1_tx(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can1_rx0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can1_rx1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can1_sce(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti9_5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_brk_tim9(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_up_tim10(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_trg_com_tim11(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim1_cc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c1_ev(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c1_er(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c2_ev(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c2_er(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_spi1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_spi2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usart1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usart2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usart3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_exti15_10(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_rtc_alarm(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_otg_fs_wkup(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_brk_tim12(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_up_tim13(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_trg_com_tim14(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim8_cc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma1_stream7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_fsmc(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_sdio(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_spi3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_uart4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_uart5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim6_dac(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_tim7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream2(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream3(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream4(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_eth(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_eth_wkup(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can2_tx(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can2_rx0(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can2_rx1(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_can2_sce(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_otg_fs(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream5(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream6(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dma2_stream7(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_usart6(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c3_ev(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_i2c3_er(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_otg_hs_ep1_out(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_otg_hs_ep1_in(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_otg_hs_wkup(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_otg_hs(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_dcmi(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_cryp(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_hash_rng(void) __attribute__ ((weak, alias("dummy_handler")));
void isr_fpu(void) __attribute__ ((weak, alias("dummy_handler")));
/* interrupt vector table */
__attribute__ ((section(".vectors")))
const void *interrupt_vector[] = {
/* Stack pointer */
(void*) (&_estack), /* pointer to the top of the empty stack */
/* Cortex-M4 handlers */
(void*) reset_handler, /* entry point of the program */
(void*) isr_nmi, /* non maskable interrupt handler */
(void*) isr_hard_fault, /* if you end up here its not good */
(void*) isr_mem_manage, /* memory controller interrupt */
(void*) isr_bus_fault, /* also not good to end up here */
(void*) isr_usage_fault, /* autsch */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) (0UL), /* Reserved */
(void*) isr_svc, /* system call interrupt */
(void*) isr_debug_mon, /* debug interrupt */
(void*) (0UL), /* Reserved */
(void*) isr_pendsv, /* pendSV interrupt, used for task switching in RIOT */
(void*) isr_systick, /* SysTick interrupt, not used in RIOT */
/* STM specific peripheral handlers */
(void*) isr_wwdg, /* Window WatchDog */
(void*) isr_pvd, /* PVD through EXTI Line detection */
(void*) isr_tamp_stamp, /* Tamper and TimeStamps through the EXTI line */
(void*) isr_rtc_wkup, /* RTC Wakeup through the EXTI line */
(void*) isr_flash, /* FLASH */
(void*) isr_rcc, /* RCC */
(void*) isr_exti0, /* EXTI Line0 */
(void*) isr_exti1, /* EXTI Line1 */
(void*) isr_exti2, /* EXTI Line2 */
(void*) isr_exti3, /* EXTI Line3 */
(void*) isr_exti4, /* EXTI Line4 */
(void*) isr_dma1_stream0, /* DMA1 Stream 0 */
(void*) isr_dma1_stream1, /* DMA1 Stream 1 */
(void*) isr_dma1_stream2, /* DMA1 Stream 2 */
(void*) isr_dma1_stream3, /* DMA1 Stream 3 */
(void*) isr_dma1_stream4, /* DMA1 Stream 4 */
(void*) isr_dma1_stream5, /* DMA1 Stream 5 */
(void*) isr_dma1_stream6, /* DMA1 Stream 6 */
(void*) isr_adc, /* ADC1, ADC2 and ADC3s */
(void*) isr_can1_tx, /* CAN1 TX */
(void*) isr_can1_rx0, /* CAN1 RX0 */
(void*) isr_can1_rx1, /* CAN1 RX1 */
(void*) isr_can1_sce, /* CAN1 SCE */
(void*) isr_exti9_5, /* External Line[9:5]s */
(void*) isr_tim1_brk_tim9, /* TIM1 Break and TIM9 */
(void*) isr_tim1_up_tim10, /* TIM1 Update and TIM10 */
(void*) isr_tim1_trg_com_tim11, /* TIM1 Trigger and Commutation and TIM11 */
(void*) isr_tim1_cc, /* TIM1 Capture Compare */
(void*) isr_tim2, /* TIM2 */
(void*) isr_tim3, /* TIM3 */
(void*) isr_tim4, /* TIM4 */
(void*) isr_i2c1_ev, /* I2C1 Event */
(void*) isr_i2c1_er, /* I2C1 Error */
(void*) isr_i2c2_ev, /* I2C2 Event */
(void*) isr_i2c2_er, /* I2C2 Error */
(void*) isr_spi1, /* SPI1 */
(void*) isr_spi2, /* SPI2 */
(void*) isr_usart1, /* USART1 */
(void*) isr_usart2, /* USART2 */
(void*) isr_usart3, /* USART3 */
(void*) isr_exti15_10, /* External Line[15:10]s */
(void*) isr_rtc_alarm, /* RTC Alarm (A and B) through EXTI Line */
(void*) isr_otg_fs_wkup, /* USB OTG FS Wakeup through EXTI line */
(void*) isr_tim8_brk_tim12, /* TIM8 Break and TIM12 */
(void*) isr_tim8_up_tim13, /* TIM8 Update and TIM13 */
(void*) isr_tim8_trg_com_tim14, /* TIM8 Trigger and Commutation and TIM14 */
(void*) isr_tim8_cc, /* TIM8 Capture Compare */
(void*) isr_dma1_stream7, /* DMA1 Stream7 */
(void*) isr_fsmc, /* FSMC */
(void*) isr_sdio, /* SDIO */
(void*) isr_tim5, /* TIM5 */
(void*) isr_spi3, /* SPI3 */
(void*) isr_uart4, /* UART4 */
(void*) isr_uart5, /* UART5 */
(void*) isr_tim6_dac, /* TIM6 and DAC1&2 underrun errors */
(void*) isr_tim7, /* TIM7 */
(void*) isr_dma2_stream0, /* DMA2 Stream 0 */
(void*) isr_dma2_stream1, /* DMA2 Stream 1 */
(void*) isr_dma2_stream2, /* DMA2 Stream 2 */
(void*) isr_dma2_stream3, /* DMA2 Stream 3 */
(void*) isr_dma2_stream4, /* DMA2 Stream 4 */
(void*) isr_eth, /* Ethernet */
(void*) isr_eth_wkup, /* Ethernet Wakeup through EXTI line */
(void*) isr_can2_tx, /* CAN2 TX */
(void*) isr_can2_rx0, /* CAN2 RX0 */
(void*) isr_can2_rx1, /* CAN2 RX1 */
(void*) isr_can2_sce, /* CAN2 SCE */
(void*) isr_otg_fs, /* USB OTG FS */
(void*) isr_dma2_stream5, /* DMA2 Stream 5 */
(void*) isr_dma2_stream6, /* DMA2 Stream 6 */
(void*) isr_dma2_stream7, /* DMA2 Stream 7 */
(void*) isr_usart6, /* USART6 */
(void*) isr_i2c3_ev, /* I2C3 event */
(void*) isr_i2c3_er, /* I2C3 error */
(void*) isr_otg_hs_ep1_out, /* USB OTG HS End Point 1 Out */
(void*) isr_otg_hs_ep1_in, /* USB OTG HS End Point 1 In */
(void*) isr_otg_hs_wkup, /* USB OTG HS Wakeup through EXTI */
(void*) isr_otg_hs, /* USB OTG HS */
(void*) isr_dcmi, /* DCMI */
(void*) isr_cryp, /* CRYP crypto */
(void*) isr_hash_rng, /* Hash and Rng */
(void*) isr_fpu, /* FPU */
};

144
cpu/stm32f4/stm32f407vg_linkerscript.ld Normal file
View File

@ -0,0 +1,144 @@
/* ----------------------------------------------------------------------------
* SAM Software Package License
* ----------------------------------------------------------------------------
* Copyright (c) 2012, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following condition is met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
SEARCH_DIR(.)
/* Memory Spaces Definitions */
MEMORY
{
rom (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 128K
ccmram (rwx): ORIGIN = 0x10000000, LENGTH = 64K
}
/* The stack size used by the application. NOTE: you need to adjust */
STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : 0x2000 ;
/* Section Definitions */
SECTIONS
{
.text :
{
. = ALIGN(4);
_sfixed = .;
KEEP(*(.vectors .vectors.*))
*(.text .text.* .gnu.linkonce.t.*)
*(.glue_7t) *(.glue_7)
*(.rodata .rodata* .gnu.linkonce.r.*)
*(.ARM.extab* .gnu.linkonce.armextab.*)
/* Support C constructors, and C destructors in both user code
and the C library. This also provides support for C++ code. */
. = ALIGN(4);
KEEP(*(.init))
. = ALIGN(4);
__preinit_array_start = .;
KEEP (*(.preinit_array))
__preinit_array_end = .;
. = ALIGN(4);
__init_array_start = .;
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
__init_array_end = .;
. = ALIGN(0x4);
KEEP (*crtbegin.o(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*crtend.o(.ctors))
. = ALIGN(4);
KEEP(*(.fini))
. = ALIGN(4);
__fini_array_start = .;
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
__fini_array_end = .;
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*crtend.o(.dtors))
. = ALIGN(4);
_efixed = .; /* End of text section */
} > rom
/* .ARM.exidx is sorted, so has to go in its own output section. */
PROVIDE_HIDDEN (__exidx_start = .);
.ARM.exidx :
{
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
} > rom
PROVIDE_HIDDEN (__exidx_end = .);
. = ALIGN(4);
_etext = .;
.relocate : AT (_etext)
{
. = ALIGN(4);
_srelocate = .;
*(.ramfunc .ramfunc.*);
*(.data .data.*);
. = ALIGN(4);
_erelocate = .;
} > ram
/* .bss section which is used for uninitialized data */
.bss (NOLOAD) :
{
. = ALIGN(4);
_sbss = . ;
_szero = .;
*(.bss .bss.*)
*(COMMON)
. = ALIGN(4);
_ebss = . ;
_ezero = .;
} > ram
/* stack section */
.stack (NOLOAD):
{
. = ALIGN(8);
_sstack = .;
. = . + STACK_SIZE;
. = ALIGN(8);
_estack = .;
} > ram
. = ALIGN(4);
_end = . ;
}

271
cpu/stm32f4/syscalls.c Normal file
View File

@ -0,0 +1,271 @@
/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief NewLib system call implementations for STM32F4
*
* @author Michael Baar <michael.baar@fu-berlin.de>
* @author Stefan Pfeiffer <pfeiffer@inf.fu-berlin.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/unistd.h>
#include <stdint.h>
#include "board.h"
#include "thread.h"
#include "kernel.h"
#include "irq.h"
#include "periph/uart.h"
/**
* manage the heap
*/
extern uint32_t _end; /* address of last used memory cell */
caddr_t heap_top = (caddr_t)&_end + 4;
/**
* @brief Initialize NewLib, called by __libc_init_array() from the startup script
*/
void _init(void)
{
uart_init_blocking(STDIO, STDIO_BAUDRATE);
}
/**
* @brief Free resources on NewLib de-initialization, not used for RIOT
*/
void _fini(void)
{
/* nothing to do here */
}
/**
* @brief Exit a program without cleaning up files
*
* If your system doesn't provide this, it is best to avoid linking with subroutines that
* require it (exit, system).
*
* @param n the exit code, 0 for all OK, >0 for not OK
*/
void _exit(int n)
{
printf("#! exit %i: resetting\n", n);
NVIC_SystemReset();
while(1);
}
/**
* @brief Allocate memory from the heap.
*
* The current heap implementation is very rudimentary, it is only able to allocate
* memory. But it does not
* - check if the returned address is valid (no check if the memory very exists)
* - have any means to free memory again
*
* TODO: check if the requested memory is really available
*
* @return [description]
*/
caddr_t _sbrk_r(struct _reent *r, size_t incr)
{
unsigned int state = disableIRQ();
caddr_t res = heap_top;
heap_top += incr;
restoreIRQ(state);
return res;
}
/**
* @brief Get the process-ID of the current thread
*
* @return the process ID of the current thread
*/
int _getpid(void)
{
return sched_active_thread->pid;
}
/**
* @brief Send a signal to a given thread
*
* @param r TODO
* @param pid TODO
* @param sig TODO
*
* @return TODO
*/
int _kill_r(struct _reent *r, int pid, int sig)
{
r->_errno = ESRCH; /* not implemented yet */
return -1;
}
/**
* @brief Open a file
*
* @param r TODO
* @param name TODO
* @param mode TODO
*
* @return TODO
*/
int _open_r(struct _reent *r, const char *name, int mode)
{
r->_errno = ENODEV; /* not implemented yet */
return -1;
}
/**
* @brief Read from a file
*
* All input is read from UART_0. The function will block until a byte is actually read.
*
* Note: the read function does not buffer - data will be lost if the function is not
* called fast enough.
*
* TODO: implement more sophisticated read call.
*
* @param r TODO
* @param fd TODO
* @param buffer TODO
* @param int TODO
*
* @return TODO
*/
int _read_r(struct _reent *r, int fd, void *buffer, unsigned int count)
{
char c;
char *buff = (char*)buffer;
uart_read_blocking(STDIO, &c);
buff[0] = c;
return 1;
}
/**
* @brief Write characters to a file
*
* All output is currently directed to UART_0, independent of the given file descriptor.
* The write call will further block until the byte is actually written to the UART.
*
* TODO: implement more sophisticated write call.
*
* @param r TODO
* @param fd TODO
* @param data TODO
* @param int TODO
*
* @return TODO
*/
int _write_r(struct _reent *r, int fd, const void *data, unsigned int count)
{
char *c = (char*)data;
for (int i = 0; i < count; i++) {
uart_write_blocking(STDIO, c[i]);
}
return count;
}
/**
* @brief Close a file
*
* @param r TODO
* @param fd TODO
*
* @return TODO
*/
int _close_r(struct _reent *r, int fd)
{
r->_errno = ENODEV; /* not implemented yet */
return -1;
}
/**
* @brief Set position in a file
*
* @param r TODO
* @param fd TODO
* @param pos TODO
* @param dir TODO
*
* @return TODO
*/
_off_t _lseek_r(struct _reent *r, int fd, _off_t pos, int dir)
{
r->_errno = ENODEV; /* not implemented yet */
return -1;
}
/**
* @brief Status of an open file
*
* @param r TODO
* @param fd TODO
* @param stat TODO
*
* @return TODO
*/
int _fstat_r(struct _reent *r, int fd, struct stat * st)
{
r->_errno = ENODEV; /* not implemented yet */
return -1;
}
/**
* @brief Status of a file (by name)
*
* @param r TODO
* @param name TODO
* @param stat TODO
*
* @return TODO
*/
int _stat_r(struct _reent *r, char *name, struct stat *st)
{
r->_errno = ENODEV; /* not implemented yet */
return -1;
}
/**
* @brief Query whether output stream is a terminal
*
* @param r TODO
* @param fd TODO
*
* @return TODO
*/
int _isatty_r(struct _reent *r, int fd)
{
r->_errno = 0;
return -1;
}
/**
* @brief Remove a file's directory entry
*
* @param r TODO
* @param path TODO
*
* @return TODO
*/
int _unlink_r(struct _reent *r, char* path)
{
r->_errno = ENODEV; /* not implemented yet */
return -1;
}

3
examples/ccn-lite-client/Makefile
View File

@ -29,7 +29,7 @@ QUIET ?= 1
BOARD_INSUFFICIENT_RAM := chronos msb-430h telosb wsn430-v1_3b wsn430-v1_4
BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 pttu redbee-econotag udoo z1 qemu-i386 \
stm32f0discovery
stm32f0discovery stm32f4discovery
# mbed_lpc1768: see https://github.com/RIOT-OS/RIOT/issues/675
# msb-430: see https://github.com/RIOT-OS/RIOT/issues/658
# pttu: see https://github.com/RIOT-OS/RIOT/issues/659
@ -37,6 +37,7 @@ BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 pttu redbee-econotag udoo z1
# z1: lacks RTC features
# qemu-i386: no transceiver, yet
# stm32f0discovery: no transceiver, yet
# stm32f4discovery: no transceiver, yet
# Modules to include:

3
examples/ccn-lite-relay/Makefile
View File

@ -29,7 +29,7 @@ QUIET ?= 1
BOARD_INSUFFICIENT_RAM := chronos msb-430h telosb wsn430-v1_3b wsn430-v1_4
BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 pttu redbee-econotag udoo z1 qemu-i386 \
stm32f0discovery
stm32f0discovery stm32f4discovery
# mbed_lpc1768: see https://github.com/RIOT-OS/RIOT/issues/675
# msb-430: see https://github.com/RIOT-OS/RIOT/issues/658
# pttu: see https://github.com/RIOT-OS/RIOT/issues/659
@ -37,6 +37,7 @@ BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 pttu redbee-econotag udoo z1
# z1: lacks RTC features
# qemu-i386: no transceiver, yet
# stm32f0discovery: no transceiver, yet
# stm32f4discovery: no transceiver, yet
# Modules to include:

6
examples/riot_and_cpp/Makefile
View File

@ -28,13 +28,15 @@ RIOTBASE ?= $(CURDIR)/../..
QUIET ?= 1
# Blacklist boards
BOARD_BLACKLIST := arduino-due avsextrem chronos mbed_lpc1768 msb-430h msba2 redbee-econotag telosb wsn430-v1_3b wsn430-v1_4 msb-430 pttu udoo qemu-i386 z1 \
stm32f0discovery
BOARD_BLACKLIST := arduino-due avsextrem chronos mbed_lpc1768 msb-430h msba2 redbee-econotag \
telosb wsn430-v1_3b wsn430-v1_4 msb-430 pttu udoo qemu-i386 z1 stm32f0discovery \
stm32f4discovery
# This example only works with native for now.
# msb430-based boards: msp430-g++ is not provided in mspgcc.
# (People who want use c++ can build c++ compiler from source, or get binaries from Energia http://energia.nu/)
# msba2: some changes should be applied to successfully compile c++. (_kill_r, _kill, __dso_handle)
# stm32f0discovery: g++ does not support some used flags (e.g. -mthumb...)
# stm32f4discovery: g++ does not support some used flags (e.g. -mthumb...)
# others: untested.
# If you want to add some extra flags when compile c++ files, add these flags

4
examples/rpl_udp/Makefile
View File

@ -35,12 +35,14 @@ ifeq ($(shell $(CC) -Wno-cpp -E - 2>/dev/null >/dev/null dev/null ; echo $$?),0)
endif
BOARD_INSUFFICIENT_RAM := chronos msb-430h redbee-econotag telosb wsn430-v1_3b wsn430-v1_4 z1
BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 pttu udoo qemu-i386 stm32f0discovery
BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 pttu udoo qemu-i386 stm32f0discovery \
stm32f4discovery
# mbed_lpc1768: see https://github.com/RIOT-OS/RIOT/issues/675
# msb-430: see https://github.com/RIOT-OS/RIOT/issues/658
# pttu: see https://github.com/RIOT-OS/RIOT/issues/659
# qemu-i386: no transceiver, yet
# stm32f0discovery: no transceiver, yet
# stm32f4discovery: no transceiver, yet
# Modules to include:

2
tests/test_coap/Makefile
View File

@ -2,7 +2,7 @@ APPLICATION = test_coap
include ../Makefile.tests_common
BOARD_BLACKLIST := arduino-due chronos mbed_lpc1768 msb-430 msb-430h qemu-i386 stm32f0discovery \
telosb wsn430-v1_3b wsn430-v1_4 udoo z1
stm32f4discovery telosb wsn430-v1_3b wsn430-v1_4 udoo z1
BOARD_INSUFFICIENT_RAM := redbee-econotag
#MSP boards: no assert.h
#rest: no radio

3
tests/test_net_if/Makefile
View File

@ -1,8 +1,9 @@
APPLICATION = test_net_if
BOARD_BLACKLIST = mbed_lpc1768 arduino-due udoo qemu-i386 stm32f0discovery
BOARD_BLACKLIST = mbed_lpc1768 arduino-due udoo qemu-i386 stm32f0discovery stm32f4discovery
# qemu-i386: no transceiver, yet
# stm32f0discovery: no transceiver, yet
# stm32f4discovery: no transceiver, yet
include ../Makefile.tests_common

4
tests/test_pnet/Makefile
View File

@ -2,11 +2,13 @@ APPLICATION = test_pnet
include ../Makefile.tests_common
BOARD_INSUFFICIENT_RAM := chronos msb-430h redbee-econotag telosb wsn430-v1_3b wsn430-v1_4 z1
BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 udoo qemu-i386 stm32f0discovery
BOARD_BLACKLIST := arduino-due mbed_lpc1768 msb-430 udoo qemu-i386 stm32f0discovery \
stm32f4discovery
# mbed_lpc1768: see https://github.com/RIOT-OS/RIOT/issues/675
# msb-430: see https://github.com/RIOT-OS/RIOT/issues/658
# qemu-i386: no transceiver, yet
# stm32f0discovery: no transceiver, yet
# stm32f4discovery: no transceiver, yet
USEMODULE += posix
USEMODULE += pnet