periph_conf.h File Reference

Peripheral MCU configuration for the nucleo-l476rg board. More...

Detailed Description

Peripheral MCU configuration for the nucleo-l476rg board.

Author

Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

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

Michel Rottleuthner miche.nosp@m.l.ro.nosp@m.ttleu.nosp@m.thne.nosp@m.r@haw.nosp@m.-ham.nosp@m.burg..nosp@m.de

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

DMA streams configuration
#define	DMA_0_ISR   isr_dma1_channel2
#define	DMA_1_ISR   isr_dma1_channel3
#define	DMA_2_ISR   isr_dma1_channel4
#define	DMA_3_ISR   isr_dma1_channel7
#define	DMA_NUMOF   ARRAY_SIZE(dma_config)
static const dma_conf_t	dma_config []

Timer configuration
#define	TIMER_0_ISR   isr_tim5
#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_usart3)
#define	UART_2_ISR   (isr_usart1)
#define	UART_NUMOF   ARRAY_SIZE(uart_config)
static const uart_conf_t	uart_config []

PWM configuration
#define	PWM_NUMOF   ARRAY_SIZE(pwm_config)
static const pwm_conf_t	pwm_config []

SPI configuration
#define	SPI_NUMOF   ARRAY_SIZE(spi_config)
static const spi_conf_t	spi_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.

Macro Definition Documentation

ADC_NUMOF

#define ADC_NUMOF   ARRAY_SIZE(adc_config)

Definition at line 248 of file periph_conf.h.

CONFIG_BOARD_HAS_LSE

#define CONFIG_BOARD_HAS_LSE   1

Definition at line 28 of file periph_conf.h.

DMA_0_ISR

#define DMA_0_ISR   isr_dma1_channel2

Definition at line 51 of file periph_conf.h.

DMA_1_ISR

#define DMA_1_ISR   isr_dma1_channel3

Definition at line 52 of file periph_conf.h.

DMA_2_ISR

#define DMA_2_ISR   isr_dma1_channel4

Definition at line 53 of file periph_conf.h.

DMA_3_ISR

#define DMA_3_ISR   isr_dma1_channel7

Definition at line 54 of file periph_conf.h.

DMA_NUMOF

#define DMA_NUMOF   ARRAY_SIZE(dma_config)

Definition at line 56 of file periph_conf.h.

PWM_NUMOF

#define PWM_NUMOF   ARRAY_SIZE(pwm_config)

Definition at line 177 of file periph_conf.h.

SPI_NUMOF

#define SPI_NUMOF   ARRAY_SIZE(spi_config)

Definition at line 206 of file periph_conf.h.

TIMER_0_ISR

#define TIMER_0_ISR   isr_tim5

Definition at line 73 of file periph_conf.h.

TIMER_NUMOF

#define TIMER_NUMOF   ARRAY_SIZE(timer_config)

Definition at line 75 of file periph_conf.h.

UART_0_ISR

#define UART_0_ISR   (isr_usart2)

Definition at line 133 of file periph_conf.h.

UART_1_ISR

#define UART_1_ISR   (isr_usart3)

Definition at line 134 of file periph_conf.h.

UART_2_ISR

#define UART_2_ISR   (isr_usart1)

Definition at line 135 of file periph_conf.h.

UART_NUMOF

#define UART_NUMOF   ARRAY_SIZE(uart_config)

Definition at line 137 of file periph_conf.h.

VBAT_ADC

#define VBAT_ADC   ADC_LINE(6)

VBAT ADC line.

Definition at line 247 of file periph_conf.h.

Variable Documentation

adc_config

const adc_conf_t adc_config[]

static

Initial value:

= {
    {GPIO_PIN(PORT_A, 0), 0, 5},  
    {GPIO_PIN(PORT_A, 1), 0, 6},  
    {GPIO_PIN(PORT_A, 4), 1, 9},  
    {GPIO_PIN(PORT_B, 0), 1, 15}, 
    {GPIO_PIN(PORT_C, 1), 2, 2},  
    {GPIO_PIN(PORT_C, 0), 2, 1},  
    {GPIO_UNDEF, 0, 18}, 
}

ADC configuration.

Note that we do not configure all ADC channels, and not in the STM32L476RG 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 ADC[X]_IN[Y], where: [X] - describes used device - indexed from 0, for example ADC1_IN10 is device 0, [Y] - describes used channel - indexed from 1, for example ADC1_IN10 is channel 10

For Nucleo-L476RG this information is in board manual, Table 23, page 52.

VBAT is connected ADC1_IN18 or ADC3_IN18 and a 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-L476RG more information is provided in MCU datasheet, in section 3.15.3 - Vbat battery voltage monitoring, page 42.

Definition at line 237 of file periph_conf.h.

dma_config

const dma_conf_t dma_config[]

static

Initial value:

= {
    { .stream = 1 },    
    { .stream = 2 },    
    { .stream = 3 },    
    { .stream = 6 },    
}

Definition at line 44 of file periph_conf.h.

pwm_config

const pwm_conf_t pwm_config[]

static

Definition at line 144 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   = SPI_CS_UNDEF,
        .mosi_af  = GPIO_AF5,
        .miso_af  = GPIO_AF5,
        .sclk_af  = GPIO_AF5,
        .cs_af    = GPIO_AF5,
        .rccmask  = RCC_APB2ENR_SPI1EN,
        .apbbus   = APB2,
 
 
 
 
 
 
    }
}

Definition at line 184 of file periph_conf.h.

timer_config

const timer_conf_t timer_config[]

static

Initial value:

= {
    {
        .dev      = TIM5,
        .max      = 0xffffffff,
        .rcc_mask = RCC_APB1ENR1_TIM5EN,
        .bus      = APB1,
        .irqn     = TIM5_IRQn
    }
}

Definition at line 63 of file periph_conf.h.

uart_config

const uart_conf_t uart_config[]

static

Definition at line 82 of file periph_conf.h.