303ac4ded2
This board is based on rak4260 with rak specific pinmappings. ADC, LED and UART as well as USB ist supposed to work. Mostly adopted from SAM R34 Xplained Pro board with adoption to rak pinout.
211 lines
5.0 KiB
C
211 lines
5.0 KiB
C
/*
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* Copyright (C) 2019 Lokotius Filzer
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup boards_bastwan
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* @{
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*
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* @file
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* @brief Peripheral MCU configuration for the bastwan board.
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*
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* @author Lokotius Filzer <h-filzer@pixelsalat.de>
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*/
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#ifndef PERIPH_CONF_H
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#define PERIPH_CONF_H
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#include "periph_cpu.h"
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#include "macros/units.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief GCLK reference speed
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*/
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#define CLOCK_CORECLOCK MHZ(48)
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/**
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* @brief Enable the internal DC/DC converter
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* The board is equipped with the necessary inductor.
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*/
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#define USE_VREG_BUCK (1)
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/**
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* @name Timer peripheral configuration
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* @{
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*/
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static const tc32_conf_t timer_config[] = {
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{ /* Timer 0 - System Clock */
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.dev = TC0,
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.irq = TC0_IRQn,
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.mclk = &MCLK->APBCMASK.reg,
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.mclk_mask = MCLK_APBCMASK_TC0 | MCLK_APBCMASK_TC1,
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.gclk_id = TC0_GCLK_ID,
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.gclk_src = SAM0_GCLK_8MHZ,
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.flags = TC_CTRLA_MODE_COUNT32,
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}
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};
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/* Timer 0 configuration */
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#define TIMER_0_CHANNELS 2
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#define TIMER_0_ISR isr_tc0
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#define TIMER_NUMOF ARRAY_SIZE(timer_config)
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/** @} */
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/**
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* @name usart configuration
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* @{
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*/
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static const uart_conf_t uart_config[] = {
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{ /* Virtual COM Port */
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.dev = &SERCOM3->USART,
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.rx_pin = GPIO_PIN(PA, 18),
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.tx_pin = GPIO_PIN(PA, 19),
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#ifdef MODULE_PERIPH_UART_HW_FC
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.rts_pin = GPIO_UNDEF,
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.cts_pin = GPIO_UNDEF,
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#endif
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.mux = GPIO_MUX_D,
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.rx_pad = UART_PAD_RX_3,
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.tx_pad = UART_PAD_TX_2,
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.flags = UART_FLAG_NONE,
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.gclk_src = SAM0_GCLK_MAIN,
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}
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};
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/* interrupt function name mapping */
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#define UART_0_ISR isr_sercom3
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#define UART_NUMOF ARRAY_SIZE(uart_config)
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/** @} */
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/**
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* @name SPI configuration
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* @{
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*/
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/* SERCOM5 does not support DMA at the moment. See Datasheet samr34, Figure 4-2 */
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static const spi_conf_t spi_config[] = {
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{
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.dev = &(SERCOM5->SPI),
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.miso_pin = GPIO_PIN(PA, 23),
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.mosi_pin = GPIO_PIN(PB, 02),
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.clk_pin = GPIO_PIN(PB, 23),
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.miso_mux = GPIO_MUX_D,
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.mosi_mux = GPIO_MUX_D,
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.clk_mux = GPIO_MUX_D,
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.miso_pad = SPI_PAD_MISO_1,
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.mosi_pad = SPI_PAD_MOSI_0_SCK_3,
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.gclk_src = SAM0_GCLK_MAIN,
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#ifdef MODULE_PERIPH_DMA
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.tx_trigger = DMA_TRIGGER_DISABLED,
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.rx_trigger = DMA_TRIGGER_DISABLED,
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#endif
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},
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{
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.dev = &(SERCOM4->SPI),
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.miso_pin = GPIO_PIN(PC, 19),
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.mosi_pin = GPIO_PIN(PB, 30),
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.clk_pin = GPIO_PIN(PC, 18),
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.miso_mux = GPIO_MUX_F,
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.mosi_mux = GPIO_MUX_F,
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.clk_mux = GPIO_MUX_F,
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.miso_pad = SPI_PAD_MISO_0,
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.mosi_pad = SPI_PAD_MOSI_2_SCK_3,
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.gclk_src = SAM0_GCLK_MAIN,
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#ifdef MODULE_PERIPH_DMA
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.tx_trigger = SERCOM4_DMAC_ID_TX,
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.rx_trigger = SERCOM4_DMAC_ID_RX,
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#endif
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}
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};
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#define SPI_NUMOF ARRAY_SIZE(spi_config)
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/** @} */
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/**
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* @name I2C configuration
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* @{
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*/
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static const i2c_conf_t i2c_config[] = {
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{
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.dev = &(SERCOM1->I2CM),
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.speed = I2C_SPEED_NORMAL,
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.scl_pin = GPIO_PIN(PA, 17),
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.sda_pin = GPIO_PIN(PA, 16),
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.mux = GPIO_MUX_C,
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.gclk_src = SAM0_GCLK_MAIN,
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.flags = I2C_FLAG_NONE
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}
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};
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#define I2C_NUMOF ARRAY_SIZE(i2c_config)
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/** @} */
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/**
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* @name RTC configuration
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* @{
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*/
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#define EXTERNAL_OSC32_SOURCE 1
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#define INTERNAL_OSC32_SOURCE 0
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#define ULTRA_LOW_POWER_INTERNAL_OSC_SOURCE 0
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/** @} */
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/**
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* @name RTT configuration
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* @{
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*/
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#ifndef RTT_FREQUENCY
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#define RTT_FREQUENCY (32768U)
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#endif
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/** @} */
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/**
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* @name ADC Configuration
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* @{
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*/
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/* ADC 0 Default values */
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#define ADC_PRESCALER ADC_CTRLB_PRESCALER_DIV256
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#define ADC_NEG_INPUT ADC_INPUTCTRL_MUXNEG(0x18u)
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#define ADC_REF_DEFAULT ADC_REFCTRL_REFSEL_INTVCC2
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static const adc_conf_chan_t adc_channels[] = {
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/* port, pin, muxpos */
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{ GPIO_PIN(PA, 9), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN17) },
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{ GPIO_PIN(PA, 8), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN16) },
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{ GPIO_PIN(PA, 7), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN7) },
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{ GPIO_PIN(PA, 6), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN6) },
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{ GPIO_PIN(PA, 4), ADC_INPUTCTRL_MUXPOS(ADC_INPUTCTRL_MUXPOS_AIN4) }
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};
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#define ADC_NUMOF ARRAY_SIZE(adc_channels)
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/** @} */
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/**
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* @name USB peripheral configuration
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* @{
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*/
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static const sam0_common_usb_config_t sam_usbdev_config[] = {
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{
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.dm = GPIO_PIN(PA, 24),
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.dp = GPIO_PIN(PA, 25),
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.d_mux = GPIO_MUX_G,
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.device = &USB->DEVICE,
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.gclk_src = SAM0_GCLK_48MHZ,
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}
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};
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* PERIPH_CONF_H */
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/** @} */
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