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d37adee32d
There is no hardware limitation for custom boards based on STM32 to uses SPI bus with signals coming from different PORT and alternate functions. This patch allow alternate's function definition per pin basis, thus enable the support of SPI bus signals routed on differents PORT. Signed-off-by: Yannick Gicquel <ygicquel@gmail.com>
246 lines
6.3 KiB
C
246 lines
6.3 KiB
C
/*
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* Copyright (C) 2016 Fundacion Inria Chile
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup boards_nz32-sc151
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* @{
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*
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* @file
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* @brief Peripheral MCU configuration for the limifrog-v1 board
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*
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* @author Francisco Molina <francisco.molina@inria.cl>
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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 "cfg_timer_tim5.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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* @name Clock system configuration
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* @{
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**/
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#define CLOCK_HSI (16000000U) /* internal oscillator */
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#define CLOCK_CORECLOCK (32000000U) /* desired core clock frequency */
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/* configuration of PLL prescaler and multiply values */
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/* CORECLOCK := HSI / CLOCK_PLL_DIV * CLOCK_PLL_MUL */
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#define CLOCK_PLL_DIV RCC_CFGR_PLLDIV2
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#define CLOCK_PLL_MUL RCC_CFGR_PLLMUL4
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/* configuration of peripheral bus clock prescalers */
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#define CLOCK_AHB_DIV RCC_CFGR_HPRE_DIV1 /* AHB clock -> 32MHz */
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#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV1 /* APB2 clock -> 32MHz */
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#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV1 /* APB1 clock -> 32MHz */
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/* configuration of flash access cycles */
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#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY
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/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
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#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
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#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
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#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
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/** @} */
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/**
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* @name UART configuration
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* @{
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*/
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static const uart_conf_t uart_config[] = {
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{
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.dev = USART3,
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.rcc_mask = RCC_APB1ENR_USART3EN,
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.rx_pin = GPIO_PIN(PORT_B, 11),
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.tx_pin = GPIO_PIN(PORT_B, 10),
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.rx_af = GPIO_AF7,
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.tx_af = GPIO_AF7,
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.bus = APB1,
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.irqn = USART3_IRQn
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},
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{
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.dev = USART2,
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.rcc_mask = RCC_APB1ENR_USART2EN,
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.rx_pin = GPIO_PIN(PORT_A, 3),
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.tx_pin = GPIO_PIN(PORT_A, 2),
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.rx_af = GPIO_AF7,
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.tx_af = GPIO_AF7,
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.bus = APB1,
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.irqn = USART2_IRQn
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},
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{
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.dev = USART1,
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.rcc_mask = RCC_APB2ENR_USART1EN,
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.rx_pin = GPIO_PIN(PORT_A, 10),
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.tx_pin = GPIO_PIN(PORT_A, 9),
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.rx_af = GPIO_AF7,
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.tx_af = GPIO_AF7,
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.bus = APB2,
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.irqn = USART1_IRQn
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}
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};
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#define UART_0_ISR (isr_usart3)
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#define UART_1_ISR (isr_usart2)
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#define UART_2_ISR (isr_usart1)
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#define UART_NUMOF ARRAY_SIZE(uart_config)
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/** @} */
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/**
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* @name PWM configuration
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* @{
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*/
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static const pwm_conf_t pwm_config[] = {
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{
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.dev = TIM3,
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.rcc_mask = RCC_APB1ENR_TIM3EN,
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.chan = { { .pin = GPIO_PIN(PORT_C, 6), .cc_chan = 0 },
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{ .pin = GPIO_PIN(PORT_C, 7), .cc_chan = 1 },
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{ .pin = GPIO_PIN(PORT_C, 8), .cc_chan = 2 },
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{ .pin = GPIO_PIN(PORT_C, 9), .cc_chan = 3 } },
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.af = GPIO_AF2,
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.bus = APB1
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}
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};
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#define PWM_NUMOF ARRAY_SIZE(pwm_config)
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/** @} */
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/**
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* @name SPI configuration
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*
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* @note The spi_divtable is auto-generated from
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* `cpu/stm32_common/dist/spi_divtable/spi_divtable.c`
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* @{
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*/
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static const uint8_t spi_divtable[2][5] = {
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{ /* for APB1 @ 32000000Hz */
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7, /* -> 125000Hz */
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5, /* -> 500000Hz */
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4, /* -> 1000000Hz */
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2, /* -> 4000000Hz */
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1 /* -> 8000000Hz */
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},
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{ /* for APB2 @ 32000000Hz */
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7, /* -> 125000Hz */
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5, /* -> 500000Hz */
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4, /* -> 1000000Hz */
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2, /* -> 4000000Hz */
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1 /* -> 8000000Hz */
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}
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};
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static const spi_conf_t spi_config[] = {
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{
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.dev = SPI1,
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.mosi_pin = GPIO_PIN(PORT_B, 5),
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.miso_pin = GPIO_PIN(PORT_B, 4),
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.sclk_pin = GPIO_PIN(PORT_B, 3),
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.cs_pin = GPIO_UNDEF,
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.mosi_af = GPIO_AF5,
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.miso_af = GPIO_AF5,
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.sclk_af = GPIO_AF5,
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.cs_af = GPIO_AF5,
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.rccmask = RCC_APB2ENR_SPI1EN,
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.apbbus = APB2
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},
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{
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.dev = SPI2,
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.mosi_pin = GPIO_PIN(PORT_B, 15),
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.miso_pin = GPIO_PIN(PORT_B, 14),
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.sclk_pin = GPIO_PIN(PORT_B, 13),
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.cs_pin = GPIO_UNDEF,
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.mosi_af = GPIO_AF5,
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.miso_af = GPIO_AF5,
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.sclk_af = GPIO_AF5,
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.cs_af = GPIO_AF5,
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.rccmask = RCC_APB1ENR_SPI2EN,
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.apbbus = APB1
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},
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{
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.dev = SPI3,
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.mosi_pin = GPIO_PIN(PORT_C, 12),
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.miso_pin = GPIO_PIN(PORT_C, 11),
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.sclk_pin = GPIO_PIN(PORT_C, 10),
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.cs_pin = GPIO_UNDEF,
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.mosi_af = GPIO_AF6,
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.miso_af = GPIO_AF6,
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.sclk_af = GPIO_AF6,
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.cs_af = GPIO_AF6,
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.rccmask = RCC_APB1ENR_SPI3EN,
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.apbbus = APB1
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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 = I2C1,
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.speed = I2C_SPEED_NORMAL,
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.scl_pin = GPIO_PIN(PORT_B, 8),
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.sda_pin = GPIO_PIN(PORT_B, 9),
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.scl_af = GPIO_AF4,
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.sda_af = GPIO_AF4,
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.bus = APB1,
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.rcc_mask = RCC_APB1ENR_I2C1EN,
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.clk = CLOCK_APB1,
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.irqn = I2C1_EV_IRQn
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}
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};
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#define I2C_0_ISR isr_i2c1_ev
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#define I2C_NUMOF ARRAY_SIZE(i2c_config)
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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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#define ADC_CONFIG { \
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{ GPIO_PIN(PORT_C, 0), 10 }, \
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{ GPIO_PIN(PORT_C, 1), 11 }, \
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{ GPIO_PIN(PORT_C, 2), 12 }, \
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/* ADC Temperature channel */ \
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{ GPIO_UNDEF, 16 }, \
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/* ADC VREF channel */ \
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{ GPIO_UNDEF, 17 }, \
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}
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#define ADC_NUMOF (5)
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/** @} */
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/**
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* @name DAC configuration
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* @{
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*/
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static const dac_conf_t dac_config[] = {
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{ .pin = GPIO_PIN(PORT_A, 4), .chan = 0 },
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{ .pin = GPIO_PIN(PORT_A, 5), .chan = 1 }
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};
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#define DAC_NUMOF ARRAY_SIZE(dac_config)
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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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