boards/nucleo-f401/include/periph_conf.h File Reference
#include "periph_cpu.h"
+ Include dependency graph for boards/nucleo-f401/include/periph_conf.h:

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Macros

Clock system configuration
#define CLOCK_HSE   (8000000U) /* external oscillator */
 
#define CLOCK_CORECLOCK   (84000000U) /* desired core clock frequency */
 
#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_APB1_DIV   RCC_CFGR_PPRE1_DIV2
 
#define CLOCK_APB2_DIV   RCC_CFGR_PPRE2_DIV1
 
#define CLOCK_FLASH_LATENCY   FLASH_ACR_LATENCY_5WS
 
#define CLOCK_AHB   (CLOCK_CORECLOCK / 1)
 
#define CLOCK_APB1   (CLOCK_CORECLOCK / 2)
 
#define CLOCK_APB2   (CLOCK_CORECLOCK / 1)
 
I2C configuration
#define I2C_NUMOF   (1U)
 
#define I2C_0_EN   1
 
#define I2C_IRQ_PRIO   1
 
#define I2C_APBCLK   (CLOCK_APB1)
 
#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
 
#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))
 
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
 
DAC configuration
#define DAC_NUMOF   (0)
 
RTC configuration
#define RTC_NUMOF   (1)
 

Timer configuration

#define TIMER_0_ISR   isr_tim5
 
#define TIMER_NUMOF   (sizeof(timer_config) / sizeof(timer_config[0]))
 
static const timer_conf_t timer_config []
 

UART configuration

#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]))
 
static const uart_conf_t uart_config []
 

PWM configuration

#define PWM_NUMOF   (sizeof(pwm_config) / sizeof(pwm_config[0]))
 
static const pwm_conf_t pwm_config []
 

SPI configuration

Note
The spi_divtable is auto-generated from cpu/stm32_common/dist/spi_divtable/spi_divtable.c
#define SPI_NUMOF   (sizeof(spi_config) / sizeof(spi_config[0]))
 
static const uint8_t spi_divtable [2][5]
 
static const spi_conf_t spi_config []
 

Macro Definition Documentation

#define ADC_CONFIG
Value:
{ \
{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}, \
}
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.

Definition at line 243 of file boards/nucleo-f401/include/periph_conf.h.

Variable Documentation

const pwm_conf_t pwm_config[]
static
Initial value:
= {
{
.dev = TIM2,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.chan = { { .pin = GPIO_PIN(PORT_A, 15) , .cc_chan = 0 },
{ .pin = GPIO_PIN(PORT_B, 3) , .cc_chan = 1 },
{ .pin = GPIO_PIN(PORT_B, 10) , .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) , .cc_chan = 0 },
{ .pin = GPIO_PIN(PORT_C, 7) , .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 GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
use alternate function 1
#define GPIO_UNDEF
Define a custom GPIO_UNDEF value.
use alternate function 2

Definition at line 117 of file boards/nucleo-f401/include/periph_conf.h.

const uint8_t spi_divtable[2][5]
static
Initial value:
= {
{
7,
6,
4,
2,
1
},
{
7,
7,
5,
3,
2
}
}

Definition at line 150 of file boards/nucleo-f401/include/periph_conf.h.

const timer_conf_t timer_config[]
static
Initial value:
= {
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
}

Definition at line 55 of file boards/nucleo-f401/include/periph_conf.h.

const uart_conf_t uart_config[]
static
Initial value:
= {
{
.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,
},
{
.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,
}
}
use alternate function 7
use alternate function 8
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.

Definition at line 74 of file boards/nucleo-f401/include/periph_conf.h.