periph_conf.h File Reference

Peripheral MCU configuration for the nucleo-l4r5zi board. More...

Detailed Description

Peripheral MCU configuration for the nucleo-l4r5zi 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 "cfg_usb_otg_fs.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_tim5
#define	TIMER_NUMOF   ARRAY_SIZE(timer_config)
static const timer_conf_t	timer_config []

UART configuration
#define	UART_0_ISR   (isr_lpuart1)
#define	UART_1_ISR   (isr_usart3)
#define	UART_NUMOF   ARRAY_SIZE(uart_config)
static const uart_conf_t	uart_config []

SPI configuration
#define	SPI_NUMOF   ARRAY_SIZE(spi_config)
static const spi_conf_t	spi_config []
#define	ADC_NUMOF   ARRAY_SIZE(adc_config)
	Number of ADC devices.
#define	VBAT_ADC   ADC_LINE(6)
	VBAT ADC line.
static const adc_conf_t	adc_config []
	ADC configuration.

PWM configuration
To find appriopate device and channel find in the MCU datasheet table concerning "Alternate function AF0 to AF7" a text similar to TIM[X]_CH[Y ], where: TIM[X] - is device, [Y] - describes used channel (indexed from 0), for example TIM2_CH1 is channel 0 in configuration structure (cc_chan - field), Port column in the table describes connected port. For Nucleo-L4R5ZI this information is in the datasheet, Table 16, page 117.
#define	PWM_NUMOF   ARRAY_SIZE(pwm_config)
static const pwm_conf_t	pwm_config []

Macro Definition Documentation

ADC_NUMOF

#define ADC_NUMOF   ARRAY_SIZE(adc_config)

Number of ADC devices.

Definition at line 161 of file periph_conf.h.

CONFIG_BOARD_HAS_LSE

#define CONFIG_BOARD_HAS_LSE   1

Definition at line 24 of file periph_conf.h.

PWM_NUMOF

#define PWM_NUMOF   ARRAY_SIZE(pwm_config)

Definition at line 210 of file periph_conf.h.

SPI_NUMOF

#define SPI_NUMOF   ARRAY_SIZE(spi_config)

Definition at line 117 of file periph_conf.h.

TIMER_0_ISR

#define TIMER_0_ISR   isr_tim5

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_lpuart1)

Definition at line 91 of file periph_conf.h.

UART_1_ISR

#define UART_1_ISR   (isr_usart3)

Definition at line 92 of file periph_conf.h.

UART_NUMOF

#define UART_NUMOF   ARRAY_SIZE(uart_config)

Definition at line 94 of file periph_conf.h.

VBAT_ADC

#define VBAT_ADC   ADC_LINE(6)

VBAT ADC line.

Definition at line 166 of file periph_conf.h.

Variable Documentation

adc_config

const adc_conf_t adc_config[]

static

Initial value:

= {
    { .pin = GPIO_PIN(PORT_A, 3), .dev = 0, .chan =  8 }, 
    { .pin = GPIO_PIN(PORT_C, 0), .dev = 0, .chan =  1 }, 
    { .pin = GPIO_PIN(PORT_C, 3), .dev = 0, .chan =  4 }, 
    { .pin = GPIO_PIN(PORT_C, 1), .dev = 0, .chan =  2 }, 
    { .pin = GPIO_PIN(PORT_C, 4), .dev = 0, .chan = 13 }, 
    { .pin = GPIO_PIN(PORT_C, 5), .dev = 0, .chan = 14 }, 
    { .pin = GPIO_UNDEF, .dev = 0, .chan = 18 }, 
}

ADC configuration.

Note that we do not configure all ADC channels, and not in the STM32L4R5 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-L4R5ZI this information is in board manual, Table 11, page 38.

VBAT is connected ADC1_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-L4R5ZI more information is provided in MCU datasheet, in section 3.19.3 - Vbat battery voltage monitoring, page 46.

Definition at line 148 of file periph_conf.h.

pwm_config

const pwm_conf_t pwm_config[]

static

Initial value:

= {
    {
        .dev      = TIM2,
        .rcc_mask = RCC_APB1ENR1_TIM2EN,
        .chan     = { { .pin = GPIO_PIN(PORT_A, 0) , .cc_chan  = 0},
                      { .pin = GPIO_PIN(PORT_A, 1) , .cc_chan  = 1},
                      { .pin = GPIO_PIN(PORT_A, 2) , .cc_chan  = 2},
                      { .pin = GPIO_PIN(PORT_A, 3) , .cc_chan  = 3} },
        .af       = GPIO_AF1,
        .bus      = APB1
    },
    {
        .dev      = TIM3,
        .rcc_mask = RCC_APB1ENR1_TIM3EN,
        .chan     = { { .pin = GPIO_PIN(PORT_B, 4) , .cc_chan = 0},
                      { .pin = GPIO_PIN(PORT_E, 4) , .cc_chan = 1},
                      { .pin = GPIO_PIN(PORT_B, 0) , .cc_chan = 2},
                      { .pin = GPIO_PIN(PORT_B, 1) , .cc_chan = 3} },
        .af       = GPIO_AF2,
        .bus      = APB1
    },
}

Definition at line 187 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 101 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 41 of file periph_conf.h.

uart_config

const uart_conf_t uart_config[]

static

Initial value:

= {
    {
        .dev        = LPUART1,
        .rcc_mask   = RCC_APB1ENR2_LPUART1EN,
        .rx_pin     = GPIO_PIN(PORT_G, 8),
        .tx_pin     = GPIO_PIN(PORT_G, 7),
        .rx_af      = GPIO_AF8,
        .tx_af      = GPIO_AF8,
        .bus        = APB12,
        .irqn       = LPUART1_IRQn,
        .type       = STM32_LPUART,
        .clk_src    = 0,
    },
    {
        .dev        = USART3,
        .rcc_mask   = RCC_APB1ENR1_USART3EN,
        .rx_pin     = GPIO_PIN(PORT_D, 9),
        .tx_pin     = GPIO_PIN(PORT_D, 8),
        .rx_af      = GPIO_AF7,
        .tx_af      = GPIO_AF7,
        .bus        = APB1,
        .irqn       = USART3_IRQn,
        .type       = STM32_USART,
        .clk_src    = 0, 
 
 
 
 
    }
}

Definition at line 60 of file periph_conf.h.