periph_conf.h
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/*
* Copyright (C) 2015 Lari Lehtomäki
*
* 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_nucleo-f401
* @{
*
* @file
* @name Peripheral MCU configuration for the nucleo-f401 board
*
* @author Lari Lehtomäki <lari@lehtomaki.fi>
*/
#ifndef PERIPH_CONF_H
#define PERIPH_CONF_H
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name Clock settings
*
* @note This is auto-generated from
* `cpu/stm32_common/dist/clk_conf/clk_conf.c`
* @{
*/
/* give the target core clock (HCLK) frequency [in Hz],
* maximum: 84MHz */
#define CLOCK_CORECLOCK (84000000U)
/* 0: no external high speed crystal available
* else: actual crystal frequency [in Hz] */
#define CLOCK_HSE (8000000U)
/* 0: no external low speed crystal available,
* 1: external crystal available (always 32.768kHz) */
#define CLOCK_LSE (1)
/* peripheral clock setup */
#define CLOCK_AHB_DIV RCC_CFGR_HPRE_DIV1
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV2 /* max 42MHz */
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV1 /* max 84MHz */
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
/* Main PLL factors */
#define CLOCK_PLL_M (4)
#define CLOCK_PLL_N (168)
#define CLOCK_PLL_P (4)
#define CLOCK_PLL_Q (7)
/** @} */
/**
* @name Timer configuration
* @{
*/
static const timer_conf_t timer_config[] = {
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
#define TIMER_0_ISR isr_tim5
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**
* @name UART configuration
* @{
*/
static const uart_conf_t uart_config[] = {
{
.dev = USART2,
.rcc_mask = RCC_APB1ENR_USART2EN,
.rx_pin = GPIO_PIN(PORT_A, 3),
.tx_pin = GPIO_PIN(PORT_A, 2),
.rx_af = GPIO_AF7,
.tx_af = GPIO_AF7,
.bus = APB1,
.irqn = USART2_IRQn,
#ifdef UART_USE_DMA
.dma_stream = 6,
.dma_chan = 4
#endif
},
{
.dev = USART6,
.rcc_mask = RCC_APB2ENR_USART6EN,
.rx_pin = GPIO_PIN(PORT_A, 12),
.tx_pin = GPIO_PIN(PORT_A, 11),
.rx_af = GPIO_AF8,
.tx_af = GPIO_AF8,
.bus = APB2,
.irqn = USART6_IRQn,
#ifdef UART_USE_DMA
.dma_stream = 6,
.dma_chan = 4
#endif
}
};
#define UART_0_ISR (isr_usart2)
#define UART_0_DMA_ISR (isr_dma1_stream6)
#define UART_1_ISR (isr_usart6)
#define UART_1_DMA_ISR (isr_dma1_stream6)
#define UART_NUMOF (sizeof(uart_config) / sizeof(uart_config[0]))
/** @} */
/**
* @name PWM configuration
* @{
*/
static const pwm_conf_t pwm_config[] = {
{
.dev = TIM2,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.chan = { { .pin = GPIO_PIN(PORT_A, 15) , .cc_chan = 0 },
{ .pin = GPIO_PIN(PORT_B, 3) /* D3 */, .cc_chan = 1 },
{ .pin = GPIO_PIN(PORT_B, 10) /* D6 */, .cc_chan = 2 },
{ .pin = GPIO_UNDEF, .cc_chan = 0 } },
.af = GPIO_AF1,
.bus = APB1
},
{
.dev = TIM3,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.chan = { { .pin = GPIO_PIN(PORT_B, 4) /* D5 */, .cc_chan = 0 },
{ .pin = GPIO_PIN(PORT_C, 7) /* D9 */, .cc_chan = 1 },
{ .pin = GPIO_PIN(PORT_C, 8), .cc_chan = 2 },
{ .pin = GPIO_PIN(PORT_C, 9), .cc_chan = 3 } },
.af = GPIO_AF2,
.bus = APB1
},
};
#define PWM_NUMOF (sizeof(pwm_config) / sizeof(pwm_config[0]))
/** @} */
/**
* @name SPI configuration
*
* @note The spi_divtable is auto-generated from
* `cpu/stm32_common/dist/spi_divtable/spi_divtable.c`
* @{
*/
static const uint8_t spi_divtable[2][5] = {
{ /* for APB1 @ 42000000Hz */
7, /* -> 164062Hz */
6, /* -> 328125Hz */
4, /* -> 1312500Hz */
2, /* -> 5250000Hz */
1 /* -> 10500000Hz */
},
{ /* for APB2 @ 84000000Hz */
7, /* -> 328125Hz */
7, /* -> 328125Hz */
5, /* -> 1312500Hz */
3, /* -> 5250000Hz */
2 /* -> 10500000Hz */
}
};
static const spi_conf_t spi_config[] = {
{
.dev = SPI1,
.mosi_pin = GPIO_PIN(PORT_A, 7),
.miso_pin = GPIO_PIN(PORT_A, 6),
.sclk_pin = GPIO_PIN(PORT_A, 5),
.cs_pin = GPIO_PIN(PORT_A, 4),
.af = GPIO_AF5,
.rccmask = RCC_APB2ENR_SPI1EN,
.apbbus = APB2
},
{
.dev = SPI2,
.mosi_pin = GPIO_PIN(PORT_B, 15),
.miso_pin = GPIO_PIN(PORT_B, 14),
.sclk_pin = GPIO_PIN(PORT_B, 13),
.cs_pin = GPIO_PIN(PORT_B, 12),
.af = GPIO_AF5,
.rccmask = RCC_APB1ENR_SPI2EN,
.apbbus = APB1
},
{
.dev = SPI3,
.mosi_pin = GPIO_PIN(PORT_C, 12),
.miso_pin = GPIO_PIN(PORT_C, 11),
.sclk_pin = GPIO_PIN(PORT_C, 10),
.cs_pin = GPIO_UNDEF,
.af = GPIO_AF6,
.rccmask = RCC_APB1ENR_SPI3EN,
.apbbus = APB1
}
};
#define SPI_NUMOF (sizeof(spi_config) / sizeof(spi_config[0]))
/** @} */
/**
* @name I2C configuration
* @{
*/
#define I2C_NUMOF (1U)
#define I2C_0_EN 1
#define I2C_IRQ_PRIO 1
#define I2C_APBCLK (CLOCK_APB1)
/* I2C 0 device configuration */
#define I2C_0_DEV I2C1
#define I2C_0_CLKEN() (periph_clk_en(APB1, RCC_APB1ENR_I2C1EN))
#define I2C_0_CLKDIS() (periph_clk_dis(APB1, RCC_APB1ENR_I2C1EN))
#define I2C_0_EVT_IRQ I2C1_EV_IRQn
#define I2C_0_EVT_ISR isr_i2c1_ev
#define I2C_0_ERR_IRQ I2C1_ER_IRQn
#define I2C_0_ERR_ISR isr_i2c1_er
/* I2C 0 pin configuration */
#define I2C_0_SCL_PORT GPIOB
#define I2C_0_SCL_PIN 8
#define I2C_0_SCL_AF 4
#define I2C_0_SCL_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOBEN))
#define I2C_0_SDA_PORT GPIOB
#define I2C_0_SDA_PIN 9
#define I2C_0_SDA_AF 4
#define I2C_0_SDA_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOBEN))
/** @} */
/**
* @name ADC configuration
*
* Note that we do not configure all ADC channels,
* and not in the STM32F401 order. Instead, we
* just define 6 ADC channels, for the Nucleo
* Arduino header pins A0-A5
*
* @{
*/
#define ADC_NUMOF (6U)
#define ADC_CONFIG { \
{GPIO_PIN(PORT_A, 0), 0, 0}, \
{GPIO_PIN(PORT_A, 1), 0, 1}, \
{GPIO_PIN(PORT_A, 4), 0, 4}, \
{GPIO_PIN(PORT_B, 0), 0, 8}, \
{GPIO_PIN(PORT_C, 1), 0, 11}, \
{GPIO_PIN(PORT_C, 0), 0, 10}, \
}
/** @} */
/**
* @name RTC configuration
* @{
*/
#define RTC_NUMOF (1)
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* PERIPH_CONF_H */
/** @} */