periph_conf.h File Reference

Peripheral MCU configuration for the p-nucleo-wb55 board. More...

Detailed Description

Peripheral MCU configuration for the p-nucleo-wb55 board.

Author

Francisco Molina franc.nosp@m.ois-.nosp@m.xavie.nosp@m.r.mo.nosp@m.lina@.nosp@m.inri.nosp@m.a.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_timer_tim2.h"

Include dependency graph for periph_conf.h:

Go to the source code of this file.

Macros
#define	USBDEV_ISR   isr_usb_lp
	Interrupt function name mapping.
#define	USBDEV_NUMOF   ARRAY_SIZE(stm32_usbdev_fs_config)
	Number of available USB device FS peripherals.

Variables
static const stm32_usbdev_fs_config_t	stm32_usbdev_fs_config []
	USB device FS configuration.
#define	CONFIG_BOARD_HAS_LSE   1
#define	CONFIG_BOARD_HAS_HSE   1
#define	CONFIG_CLOCK_HSE   MHZ(32)
#define	CLOCK_EXTAHB_DIV   RCC_EXTCFGR_C2HPRE_3
#define	CLOCK_EXTAHB   (CLOCK_CORECLOCK / 2)

UART configuration
#define	UART_0_ISR   (isr_usart1)
#define	UART_1_ISR   (isr_lpuart1)
#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 []

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-WB55 this information is in the datasheet, Table 18, page 72.
#define	PWM_NUMOF   ARRAY_SIZE(pwm_config)
static const pwm_conf_t	pwm_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 202 of file periph_conf.h.

CLOCK_EXTAHB

#define CLOCK_EXTAHB   (CLOCK_CORECLOCK / 2)

Definition at line 33 of file periph_conf.h.

CLOCK_EXTAHB_DIV

#define CLOCK_EXTAHB_DIV   RCC_EXTCFGR_C2HPRE_3

Definition at line 32 of file periph_conf.h.

CONFIG_BOARD_HAS_HSE

#define CONFIG_BOARD_HAS_HSE   1

Definition at line 24 of file periph_conf.h.

CONFIG_BOARD_HAS_LSE

#define CONFIG_BOARD_HAS_LSE   1

Definition at line 20 of file periph_conf.h.

CONFIG_CLOCK_HSE

#define CONFIG_CLOCK_HSE   MHZ(32)

Definition at line 28 of file periph_conf.h.

PWM_NUMOF

#define PWM_NUMOF   ARRAY_SIZE(pwm_config)

Definition at line 133 of file periph_conf.h.

SPI_NUMOF

#define SPI_NUMOF   ARRAY_SIZE(spi_config)

Definition at line 102 of file periph_conf.h.

UART_0_ISR

#define UART_0_ISR   (isr_usart1)

Definition at line 76 of file periph_conf.h.

UART_1_ISR

#define UART_1_ISR   (isr_lpuart1)

Definition at line 77 of file periph_conf.h.

UART_NUMOF

#define UART_NUMOF   ARRAY_SIZE(uart_config)

Definition at line 79 of file periph_conf.h.

USBDEV_ISR

#define USBDEV_ISR   isr_usb_lp

Interrupt function name mapping.

Definition at line 156 of file periph_conf.h.

USBDEV_NUMOF

#define USBDEV_NUMOF   ARRAY_SIZE(stm32_usbdev_fs_config)

Number of available USB device FS peripherals.

Definition at line 161 of file periph_conf.h.

VBAT_ADC

#define VBAT_ADC   ADC_LINE(6)

VBAT ADC line.

Definition at line 201 of file periph_conf.h.

Variable Documentation

adc_config

const adc_conf_t adc_config[]

static

Initial value:

= {
    {GPIO_PIN(PORT_C, 0), 0, 1},  
    {GPIO_PIN(PORT_C, 1), 0, 2},  
    {GPIO_PIN(PORT_A, 1), 0, 6},  
    {GPIO_PIN(PORT_A, 0), 0, 5},  
    {GPIO_PIN(PORT_C, 3), 0, 4},  
    {GPIO_PIN(PORT_C, 2), 0, 3},  
    {GPIO_UNDEF, 0, 18}, 
}

ADC configuration.

Note that we do not configure all ADC channels, and not in the STM32WB55RG 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 P-NUCLEO-WB55 this information is in board manual, Table 10, page 39.

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 P-NUCLEO-WB55 more information is provided in the Reference Manual, in section 16.4.31 - Vbat supply monitoring, page 475.

Definition at line 191 of file periph_conf.h.

pwm_config

const pwm_conf_t pwm_config[]

static

Initial value:

= {
    {
        .dev      = TIM1,
        .rcc_mask = RCC_APB2ENR_TIM1EN,
        .chan     = { { .pin = GPIO_PIN(PORT_A,  8) , .cc_chan = 0},
                      { .pin = GPIO_PIN(PORT_A,  9) , .cc_chan = 1},
                      { .pin = GPIO_PIN(PORT_A, 10) , .cc_chan = 2},
                      { .pin = GPIO_PIN(PORT_A, 11) , .cc_chan = 3} },
        .af       = GPIO_AF1,
        .bus      = APB2
    },
}

Definition at line 120 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 86 of file periph_conf.h.

stm32_usbdev_fs_config

const stm32_usbdev_fs_config_t stm32_usbdev_fs_config[]

static

Initial value:

= {
    {
        .base_addr  = (uintptr_t)USB,
        .rcc_mask   = RCC_APB1ENR1_USBEN | RCC_APB1ENR1_CRSEN,
        .dm         = GPIO_PIN(PORT_A, 11),
        .dp         = GPIO_PIN(PORT_A, 12),
        .af         = GPIO_AF10,
        .disconn    = GPIO_UNDEF,
        .irqn       = USB_LP_IRQn,
        .apb        = APB1,
    },
}

USB device FS configuration.

Definition at line 140 of file periph_conf.h.

uart_config

const uart_conf_t uart_config[]

static

Initial value:

= {
    {
        .dev        = USART1,
        .rcc_mask   = RCC_APB2ENR_USART1EN,
        .rx_pin     = GPIO_PIN(PORT_B, 7),
        .tx_pin     = GPIO_PIN(PORT_B, 6),
        .rx_af      = GPIO_AF7,
        .tx_af      = GPIO_AF7,
        .bus        = APB2,
        .irqn       = USART1_IRQn,
        .type       = STM32_USART,
        .clk_src    = 0, 
    },
    {
        .dev        = LPUART1,
        .rcc_mask   = RCC_APB1ENR2_LPUART1EN,
        .rx_pin     = GPIO_PIN(PORT_A, 3),
        .tx_pin     = GPIO_PIN(PORT_A, 2),
        .rx_af      = GPIO_AF8,
        .tx_af      = GPIO_AF8,
        .bus        = APB12,
        .irqn       = LPUART1_IRQn,
        .type       = STM32_LPUART,
        .clk_src    = 0, 
    },
}

Definition at line 49 of file periph_conf.h.