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

Go to the source code of this file.

Macros

Clock settings
Note
This is auto-generated from cpu/stm32_common/dist/clk_conf/clk_conf.c
#define CLOCK_CORECLOCK   (84000000U)
 
#define CLOCK_HSE   (8000000U)
 
#define CLOCK_LSE   (1)
 
#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)
 
#define CLOCK_PLL_M   (4)
 
#define CLOCK_PLL_N   (168)
 
#define CLOCK_PLL_P   (4)
 
#define CLOCK_PLL_Q   (7)
 
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
 
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

◆ ADC_CONFIG

#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 251 of file boards/nucleo-f401/include/periph_conf.h.

Variable Documentation

◆ pwm_config

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 custom value to speficy undefined or unused GPIOs.
use alternate function 2

Definition at line 125 of file boards/nucleo-f401/include/periph_conf.h.

◆ spi_divtable

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

Definition at line 158 of file boards/nucleo-f401/include/periph_conf.h.

◆ timer_config

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 63 of file boards/nucleo-f401/include/periph_conf.h.

◆ uart_config

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 82 of file boards/nucleo-f401/include/periph_conf.h.