periph_conf.h File Reference

Peripheral MCU configuration for the nucleo-g070rb board. More...

Detailed Description

Peripheral MCU configuration for the nucleo-g070rb board.

Author

Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr

Definition in file periph_conf.h.

#include "periph_cpu.h"
#include "clk_conf.h"
#include "cfg_i2c1_pb8_pb9.h"
#include "cfg_rtt_default.h"

Include dependency graph for periph_conf.h:

Go to the source code of this file.

#define	CONFIG_BOARD_HAS_LSE   1

Timer configuration
#define	TIMER_0_ISR   isr_tim3
#define	TIMER_NUMOF   ARRAY_SIZE(timer_config)
static const timer_conf_t	timer_config []

UART configuration
#define	UART_0_ISR   (isr_usart2)
#define	UART_1_ISR   (isr_usart1)
#define	UART_NUMOF   ARRAY_SIZE(uart_config)
static const uart_conf_t	uart_config []
#define	VBAT_ADC   ADC_LINE(6)
	VBAT ADC line.
#define	ADC_NUMOF   ARRAY_SIZE(adc_config)
static const adc_conf_t	adc_config []
	ADC configuration.

SPI configuration
#define	SPI_NUMOF   ARRAY_SIZE(spi_config)
static const spi_conf_t	spi_config []

Macro Definition Documentation

ADC_NUMOF

#define ADC_NUMOF   ARRAY_SIZE(adc_config)

Definition at line 127 of file periph_conf.h.

CONFIG_BOARD_HAS_LSE

#define CONFIG_BOARD_HAS_LSE   1

Definition at line 26 of file periph_conf.h.

SPI_NUMOF

#define SPI_NUMOF   ARRAY_SIZE(spi_config)

Definition at line 150 of file periph_conf.h.

TIMER_0_ISR

#define TIMER_0_ISR   isr_tim3

Definition at line 51 of file periph_conf.h.

TIMER_NUMOF

#define TIMER_NUMOF   ARRAY_SIZE(timer_config)

Definition at line 53 of file periph_conf.h.

UART_0_ISR

#define UART_0_ISR   (isr_usart2)

Definition at line 83 of file periph_conf.h.

UART_1_ISR

#define UART_1_ISR   (isr_usart1)

Definition at line 84 of file periph_conf.h.

UART_NUMOF

#define UART_NUMOF   ARRAY_SIZE(uart_config)

Definition at line 86 of file periph_conf.h.

VBAT_ADC

#define VBAT_ADC   ADC_LINE(6)

VBAT ADC line.

Definition at line 126 of file periph_conf.h.

Variable Documentation

adc_config

const adc_conf_t adc_config[]

static

Initial value:

= {
    { .pin = GPIO_PIN(PORT_A,  0), .dev = 0, .chan =  0 }, 
    { .pin = GPIO_PIN(PORT_A,  1), .dev = 0, .chan =  1 }, 
    { .pin = GPIO_PIN(PORT_A,  4), .dev = 0, .chan =  4 }, 
    { .pin = GPIO_PIN(PORT_B,  1), .dev = 0, .chan =  9 }, 
    { .pin = GPIO_PIN(PORT_B, 11), .dev = 0, .chan = 15 }, 
    { .pin = GPIO_PIN(PORT_B, 12), .dev = 0, .chan = 16 }, 
    { .pin = GPIO_UNDEF, .dev = 0, .chan = 14}, 
}

ADC configuration.

Note that we do not configure all ADC channels, and not in the STM32G070 order. Instead, we just define 6 ADC channels, for the Nucleo Arduino header pins A0-A5 and the internal VBAT channel.

To find appropriate device and channel find in the board manual, table showing pin assignments and information about ADC - a text similar to ARD_A[N]_IN[X], where: [N] - describes analog pin number, [X] - describes used channel - indexed from 1, for example ARD_A5_IN16 is channel 16

For Nucleo-G070RB this information is in board manual, Table 12, page 30.

VBAT is connected to an internal input and voltage divider is used, so that only 1/3 of the actual VBAT is measured. This allows for a supply voltage higher than the reference voltage.

For Nucleo-G070RB more information is provided in MCU datasheet, in section 3.14.3 - Vbat battery voltage monitoring, page 22.

Definition at line 116 of file periph_conf.h.

spi_config

const spi_conf_t spi_config[]

static

Initial value:

= {
    {
        .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_UNDEF,
        .mosi_af        = GPIO_AF0,
        .miso_af        = GPIO_AF0,
        .sclk_af        = GPIO_AF0,
        .cs_af          = GPIO_AF0,
        .rccmask        = RCC_APBENR2_SPI1EN,
        .apbbus         = APB12,
    },
}

Definition at line 134 of file periph_conf.h.

timer_config

const timer_conf_t timer_config[]

static

Initial value:

= {
    {
        .dev      = TIM3,
        .max      = 0x0000ffff,
        .rcc_mask = RCC_APBENR1_TIM3EN,
        .bus      = APB1,
        .irqn     = TIM3_IRQn
    }
}

Definition at line 41 of file periph_conf.h.

uart_config

const uart_conf_t uart_config[]

static

Initial value:

= {
    {
        .dev        = USART2,
        .rcc_mask   = RCC_APBENR1_USART2EN,
        .rx_pin     = GPIO_PIN(PORT_A, 3),
        .tx_pin     = GPIO_PIN(PORT_A, 2),
        .rx_af      = GPIO_AF1,
        .tx_af      = GPIO_AF1,
        .bus        = APB1,
        .irqn       = USART2_IRQn,
    },
    {   
        .dev        = USART1,
        .rcc_mask   = RCC_APBENR2_USART1EN,
        .rx_pin     = GPIO_PIN(PORT_C, 5),
        .tx_pin     = GPIO_PIN(PORT_C, 4),
        .rx_af      = GPIO_AF1,
        .tx_af      = GPIO_AF1,
        .bus        = APB12,
        .irqn       = USART1_IRQn,
    },
}

Definition at line 60 of file periph_conf.h.