periph_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 boards_stm32f4discovery
* @{
*
* @file
* @name Peripheral MCU configuration for the STM32F4discovery board
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Peter Kietzmann <peter.kietzmann@haw-hamburg.de>
*/
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @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
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 2)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 4)
/** @} */
/**
* @brief Timer configuration
* @{
*/
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
#define TIMER_0_ISR isr_tim2
#define TIMER_1_ISR isr_tim5
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**
* @brief 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),
.af = GPIO_AF7,
.bus = APB1,
.irqn = USART2_IRQn,
.dma_stream = 6,
.dma_chan = 4
},
{
.dev = USART3,
.rcc_mask = RCC_APB1ENR_USART3EN,
.rx_pin = GPIO_PIN(PORT_D,9),
.tx_pin = GPIO_PIN(PORT_D,8),
.af = GPIO_AF7,
.bus = APB1,
.irqn = USART3_IRQn,
.dma_stream = 3,
.dma_chan = 4
}
};
/* assign ISR vector names */
#define UART_0_ISR isr_usart2
#define UART_0_DMA_ISR isr_dma1_stream6
#define UART_1_ISR isr_usart3
#define UART_1_DMA_ISR isr_dma1_stream3
/* deduct number of defined UART interfaces */
#define UART_NUMOF (sizeof(uart_config) / sizeof(uart_config[0]))
/** @} */
/**
* @brief ADC configuration
*
* We need to define the following fields:
* PIN, device (ADCx), channel
* @{
*/
#define ADC_CONFIG { \
{GPIO_PIN(PORT_A, 1), 0, 1}, \
{GPIO_PIN(PORT_A, 4), 0, 4}, \
{GPIO_PIN(PORT_C, 1), 1, 11}, \
{GPIO_PIN(PORT_C, 2), 1, 12} \
}
#define ADC_NUMOF (4)
/** @} */
/**
* @brief DAC configuration
*
* We need to define the following fields:
* PIN, DAC channel
* @{
*/
#define DAC_CONFIG { \
{ GPIO_PIN(PORT_A, 4), 0 }, \
{ GPIO_PIN(PORT_A, 5), 1 }, \
}
#define DAC_NUMOF (2)
/** @} */
/**
* @brief PWM configuration
* @{
*/
static const pwm_conf_t pwm_config[] = {
{
.dev = TIM1,
.rcc_mask = RCC_APB2ENR_TIM1EN,
.pins = { GPIO_PIN(PORT_E, 9), GPIO_PIN(PORT_E, 11),
GPIO_PIN(PORT_E, 11), GPIO_PIN(PORT_E, 14) },
.af = GPIO_AF1,
.chan = 4,
.bus = APB2
},
{
.dev = TIM3,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.pins = { GPIO_PIN(PORT_B, 4), GPIO_PIN(PORT_B, 5),
GPIO_PIN(PORT_B, 0), GPIO_PIN(PORT_B, 1) },
.af = GPIO_AF2,
.chan = 4,
.bus = APB1
}
};
#define PWM_NUMOF (sizeof(pwm_config) / sizeof(pwm_config[0]))
/** @} */
/**
* @name SPI configuration
* @{
*/
#define SPI_NUMOF (2U)
#define SPI_0_EN 1
#define SPI_1_EN 1
#define SPI_IRQ_PRIO 1
/* SPI 0 device config */
#define SPI_0_DEV SPI1
#define SPI_0_CLKEN() (periph_clk_en(APB2, RCC_APB2ENR_SPI1EN))
#define SPI_0_CLKDIS() (periph_clk_dis(APB2, RCC_APB2ENR_SPI1EN))
#define SPI_0_BUS_DIV 1 /* 1 -> SPI runs with half CPU clock, 0 -> quarter CPU clock */
#define SPI_0_IRQ SPI1_IRQn
#define SPI_0_IRQ_HANDLER isr_spi1
/* SPI 0 pin configuration */
#define SPI_0_SCK_PORT GPIOA
#define SPI_0_SCK_PIN 5
#define SPI_0_SCK_AF 5
#define SPI_0_SCK_PORT_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOAEN))
#define SPI_0_MISO_PORT GPIOA
#define SPI_0_MISO_PIN 6
#define SPI_0_MISO_AF 5
#define SPI_0_MISO_PORT_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOAEN))
#define SPI_0_MOSI_PORT GPIOA
#define SPI_0_MOSI_PIN 7
#define SPI_0_MOSI_AF 5
#define SPI_0_MOSI_PORT_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOAEN))
/* SPI 1 device config */
#define SPI_1_DEV SPI2
#define SPI_1_CLKEN() (periph_clk_en(APB1, RCC_APB1ENR_SPI2EN))
#define SPI_1_CLKDIS() (periph_clk_dis(APB1, RCC_APB1ENR_SPI2EN))
#define SPI_1_BUS_DIV 0 /* 1 -> SPI runs with half CPU clock, 0 -> quarter CPU clock */
#define SPI_1_IRQ SPI2_IRQn
#define SPI_1_IRQ_HANDLER isr_spi2
/* SPI 1 pin configuration */
#define SPI_1_SCK_PORT GPIOB
#define SPI_1_SCK_PIN 13
#define SPI_1_SCK_AF 5
#define SPI_1_SCK_PORT_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOBEN))
#define SPI_1_MISO_PORT GPIOB
#define SPI_1_MISO_PIN 14
#define SPI_1_MISO_AF 5
#define SPI_1_MISO_PORT_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOBEN))
#define SPI_1_MOSI_PORT GPIOB
#define SPI_1_MOSI_PIN 15
#define SPI_1_MOSI_AF 5
#define SPI_1_MOSI_PORT_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOBEN))
/** @} */
/**
* @name I2C configuration
* @{
*/
#define I2C_NUMOF (1U)
#define I2C_0_EN 1
#define I2C_IRQ_PRIO 1
#define I2C_APBCLK (42000000U)
/* 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 6
#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 7
#define I2C_0_SDA_AF 4
#define I2C_0_SDA_CLKEN() (periph_clk_en(AHB1, RCC_AHB1ENR_GPIOBEN))
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* PERIPH_CONF_H_ */
/** @} */