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boards/arduino-nano-33-iot: add initial support

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Alexandre Abadie 2020-01-21 15:04:01 +01:00
parent 19dabc9fd7
commit dfff56801c
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10 changed files with 423 additions and 0 deletions
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21
boards/arduino-nano-33-iot/Kconfig Normal file
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# Copyright (c) 2020 Inria
#
# 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.
config BOARD
default "arduino-nano-33-iot" if BOARD_ARDUINO_NANO_33_IOT
config BOARD_ARDUINO_NANO_33_IOT
bool
default y
select CPU_MODEL_SAMD21G18A
select HAS_PERIPH_I2C
select HAS_PERIPH_RTC
select HAS_PERIPH_RTT
select HAS_PERIPH_SPI
select HAS_PERIPH_TIMER
select HAS_PERIPH_UART
select HAS_PERIPH_USBDEV
select HAS_HIGHLEVEL_STDIO

5
boards/arduino-nano-33-iot/Makefile Normal file
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MODULE = board
DIRS = $(RIOTBOARD)/common/samd21-arduino-bootloader
include $(RIOTBASE)/Makefile.base

6
boards/arduino-nano-33-iot/Makefile.dep Normal file
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ifneq (,$(filter saul_default,$(USEMODULE)))
USEMODULE += saul_gpio
endif
# setup the samd21 arduino bootloader related dependencies
include $(RIOTBOARD)/common/samd21-arduino-bootloader/Makefile.dep

14
boards/arduino-nano-33-iot/Makefile.features Normal file
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CPU = samd21
CPU_MODEL = samd21g18a
# Put defined MCU peripherals here (in alphabetical order)
FEATURES_PROVIDED += periph_i2c
FEATURES_PROVIDED += periph_rtc
FEATURES_PROVIDED += periph_rtt
FEATURES_PROVIDED += periph_spi
FEATURES_PROVIDED += periph_timer
FEATURES_PROVIDED += periph_uart
FEATURES_PROVIDED += periph_usbdev
# Put other features for this board (in alphabetical order)
FEATURES_PROVIDED += highlevel_stdio

8
boards/arduino-nano-33-iot/Makefile.include Normal file
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PORT_LINUX ?= /dev/ttyACM0
PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
# Include all definitions for flashing with bossa over USB
include $(RIOTBOARD)/common/samd21-arduino-bootloader/Makefile.include
# Include handling of serial and non-bossa programmers (if selected by user)
include $(RIOTMAKE)/boards/sam0.inc.mk

31
boards/arduino-nano-33-iot/board.c Normal file
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/*
* Copyright (C) 2020 Inria
*
* 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 boards_arduino-nano-33-iot
* @{
* @file
* @brief Board common implementations for the Arduino Nano 33 IoT
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*
* @}
*/
#include "cpu.h"
#include "board.h"
#include "periph/gpio.h"
void board_init(void)
{
/* initialize the on-board "Yellow" LED */
gpio_init(LED0_PIN, GPIO_OUT);
/* initialize the CPU */
cpu_init();
}

27
boards/arduino-nano-33-iot/doc.txt Normal file
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/**
@defgroup boards_arduino-nano-33-iot Arduino Nano 33 IoT
@ingroup boards
@brief Support for the Arduino Nano 33 IoT board.
### General information
The [Arduino Nano 33 IoT](https://store.arduino.cc/arduino-nano-33-iot) board is
a learning and development board that provides Sigfox connectivity and is
powered by an Atmel SAMD21 microcontroller.
### Flash the board
Use `BOARD=arduino-nano-33-iot` with the `make` command.<br/>
Example with `hello-world` application:
```
make BOARD=arduino-nano-33-iot -C examples/hello-world flash
```
### Accessing STDIO via UART
STDIO of RIOT is directly available over the USB port.
The `TERM_DELAY` environment variable can be used to add a delay (in second)
before opening the serial terminal. The default value is 2s which should be
enough in most of the situation.
*/

54
boards/arduino-nano-33-iot/include/board.h Normal file
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/*
* Copyright (C) 2020 Inria
*
* 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 boards_arduino-nano-33-iot
* @{
*
* @file
* @brief Board specific definitions for the Arduino Nano 33 IoT
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*/
#ifndef BOARD_H
#define BOARD_H
#include "cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name LED pin definitions and handlers
* @{
*/
#define LED0_PIN GPIO_PIN(PA, 17)
#define LED_PORT PORT->Group[PA]
#define LED0_MASK (1 << 17)
#define LED0_ON (LED_PORT.OUTSET.reg = LED0_MASK)
#define LED0_OFF (LED_PORT.OUTCLR.reg = LED0_MASK)
#define LED0_TOGGLE (LED_PORT.OUTTGL.reg = LED0_MASK)
#define LED0_NAME "LED(Yellow)"
/** @} */
/**
* @brief Initialize board specific hardware, including clock, LEDs and std-IO
*/
void board_init(void);
#ifdef __cplusplus
}
#endif
#endif /* BOARD_H */
/** @} */

46
boards/arduino-nano-33-iot/include/gpio_params.h Normal file
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/*
* Copyright (C) 2020 Inria
*
* 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 boards_arduino-nano-33-iot
* @{
*
* @file
* @brief Board specific configuration of direct mapped GPIOs
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*/
#ifndef GPIO_PARAMS_H
#define GPIO_PARAMS_H
#include "board.h"
#include "saul/periph.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief GPIO pin configuration
*/
static const saul_gpio_params_t saul_gpio_params[] =
{
{
.name = LED0_NAME,
.pin = LED0_PIN,
.mode = GPIO_OUT
},
};
#ifdef __cplusplus
}
#endif
#endif /* GPIO_PARAMS_H */
/** @} */

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boards/arduino-nano-33-iot/include/periph_conf.h Normal file
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/*
* Copyright (C) 2020 Inria
*
* 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 boards_arduino-nano-33-iot
* @{
*
* @file
* @brief Configuration of CPU peripherals for Arduino Nano 33 IoT
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*/
#ifndef PERIPH_CONF_H
#define PERIPH_CONF_H
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name External oscillator and clock configuration
*
* For selection of the used CORECLOCK, we have implemented two choices:
*
* - usage of the PLL fed by the internal 8MHz oscillator divided by 8
* - usage of the internal 8MHz oscillator directly, divided by N if needed
*
*
* The PLL option allows for the usage of a wider frequency range and a more
* stable clock with less jitter. This is why we use this option as default.
*
* The target frequency is computed from the PLL multiplier and the PLL divisor.
* Use the following formula to compute your values:
*
* CORECLOCK = ((PLL_MUL + 1) * 1MHz) / PLL_DIV
*
* NOTE: The PLL circuit does not run with less than 32MHz while the maximum PLL
* frequency is 96MHz. So PLL_MULL must be between 31 and 95!
*
*
* The internal Oscillator used directly can lead to a slightly better power
* efficiency to the cost of a less stable clock. Use this option when you know
* what you are doing! The actual core frequency is adjusted as follows:
*
* CORECLOCK = 8MHz / DIV
*
* NOTE: A core clock frequency below 1MHz is not recommended
*
* @{
*/
#define CLOCK_USE_PLL (1)
#if CLOCK_USE_PLL
/* edit these values to adjust the PLL output frequency */
#define CLOCK_PLL_MUL (47U) /* must be >= 31 & <= 95 */
#define CLOCK_PLL_DIV (1U) /* adjust to your needs */
/* generate the actual used core clock frequency */
#define CLOCK_CORECLOCK (((CLOCK_PLL_MUL + 1) * 1000000U) / CLOCK_PLL_DIV)
#else
/* edit this value to your needs */
#define CLOCK_DIV (1U)
/* generate the actual core clock frequency */
#define CLOCK_CORECLOCK (8000000 / CLOCK_DIV)
#endif
/** @} */
/**
* @name Timer peripheral configuration
* @{
*/
static const tc32_conf_t timer_config[] = {
{ /* Timer 0 - System Clock */
.dev = TC3,
.irq = TC3_IRQn,
.pm_mask = PM_APBCMASK_TC3,
.gclk_ctrl = GCLK_CLKCTRL_ID_TCC2_TC3,
#if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
.gclk_src = SAM0_GCLK_1MHZ,
#else
.gclk_src = SAM0_GCLK_MAIN,
#endif
.flags = TC_CTRLA_MODE_COUNT16,
},
{ /* Timer 1 */
.dev = TC4,
.irq = TC4_IRQn,
.pm_mask = PM_APBCMASK_TC4 | PM_APBCMASK_TC5,
.gclk_ctrl = GCLK_CLKCTRL_ID_TC4_TC5,
#if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
.gclk_src = SAM0_GCLK_1MHZ,
#else
.gclk_src = SAM0_GCLK_MAIN,
#endif
.flags = TC_CTRLA_MODE_COUNT32,
}
};
#define TIMER_0_MAX_VALUE 0xffff
/* interrupt function name mapping */
#define TIMER_0_ISR isr_tc3
#define TIMER_1_ISR isr_tc4
#define TIMER_NUMOF ARRAY_SIZE(timer_config)
/** @} */
/**
* @name UART configuration
* @{
*/
static const uart_conf_t uart_config[] = {
{
.dev = &SERCOM5->USART,
.rx_pin = GPIO_PIN(PB,23),
.tx_pin = GPIO_PIN(PB,22),
#ifdef MODULE_SAM0_PERIPH_UART_HW_FC
.rts_pin = GPIO_UNDEF,
.cts_pin = GPIO_UNDEF,
#endif
.mux = GPIO_MUX_D,
.rx_pad = UART_PAD_RX_3,
.tx_pad = UART_PAD_TX_2,
.flags = UART_FLAG_NONE,
.gclk_src = SAM0_GCLK_MAIN,
}
};
/* interrupt function name mapping */
#define UART_0_ISR isr_sercom5
#define UART_NUMOF ARRAY_SIZE(uart_config)
/** @} */
/**
* @name I2C configuration
* @{
*/
static const i2c_conf_t i2c_config[] = {
{
.dev = &(SERCOM4->I2CM),
.speed = I2C_SPEED_NORMAL,
.scl_pin = GPIO_PIN(PB, 9),
.sda_pin = GPIO_PIN(PB, 8),
.mux = GPIO_MUX_D,
.gclk_src = SAM0_GCLK_MAIN,
.flags = I2C_FLAG_NONE
}
};
#define I2C_NUMOF ARRAY_SIZE(i2c_config)
/** @} */
/**
* @name SPI configuration
* @{
*/
static const spi_conf_t spi_config[] = {
{ /* Connected to NINA W102 */
.dev = &SERCOM4->SPI,
.miso_pin = GPIO_PIN(PA, 13),
.mosi_pin = GPIO_PIN(PA, 12),
.clk_pin = GPIO_PIN(PA, 15),
.miso_mux = GPIO_MUX_D,
.mosi_mux = GPIO_MUX_D,
.clk_mux = GPIO_MUX_D,
.miso_pad = SPI_PAD_MISO_1,
.mosi_pad = SPI_PAD_MOSI_0_SCK_3,
.gclk_src = SAM0_GCLK_MAIN,
},
};
#define SPI_NUMOF ARRAY_SIZE(spi_config)
/** @} */
/**
* @name RTT configuration
* @{
*/
#ifndef RTT_FREQUENCY
#define RTT_FREQUENCY (32768U) /* in Hz. For changes see `rtt.c` */
#endif
/** @} */
/**
* @name USB peripheral configuration
* @{
*/
static const sam0_common_usb_config_t sam_usbdev_config[] = {
{
.dm = GPIO_PIN(PA, 24),
.dp = GPIO_PIN(PA, 25),
.d_mux = GPIO_MUX_G,
.device = &USB->DEVICE,
.gclk_src = SAM0_GCLK_MAIN,
}
};
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* PERIPH_CONF_H */
/** @} */