unleashed-firmware/firmware/targets/f4/api-hal/api-hal-spi-config.c

#include "main.h"
#include "api-hal-spi-config.h"

extern SPI_HandleTypeDef SPI_R;
extern SPI_HandleTypeDef SPI_D;

/**
 * SD Card in fast mode (after init)
 */
const SPIDevice sd_fast_spi = {
    .spi = &SPI_D,
    .config = {
        .Mode = SPI_MODE_MASTER,
        .Direction = SPI_DIRECTION_2LINES,
        .DataSize = SPI_DATASIZE_8BIT,
        .CLKPolarity = SPI_POLARITY_LOW,
        .CLKPhase = SPI_PHASE_1EDGE,
        .NSS = SPI_NSS_SOFT,
        .BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2,
        .FirstBit = SPI_FIRSTBIT_MSB,
        .TIMode = SPI_TIMODE_DISABLE,
        .CRCCalculation = SPI_CRCCALCULATION_DISABLE,
        .CRCPolynomial = 7,
        .CRCLength = SPI_CRC_LENGTH_DATASIZE,
        .NSSPMode = SPI_NSS_PULSE_ENABLE,
    }};

/**
 * SD Card in slow mode (before init)
 */
const SPIDevice sd_slow_spi = {
    .spi = &SPI_D,
    .config = {
        .Mode = SPI_MODE_MASTER,
        .Direction = SPI_DIRECTION_2LINES,
        .DataSize = SPI_DATASIZE_8BIT,
        .CLKPolarity = SPI_POLARITY_LOW,
        .CLKPhase = SPI_PHASE_1EDGE,
        .NSS = SPI_NSS_SOFT,
        .BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32,
        .FirstBit = SPI_FIRSTBIT_MSB,
        .TIMode = SPI_TIMODE_DISABLE,
        .CRCCalculation = SPI_CRCCALCULATION_DISABLE,
        .CRCPolynomial = 7,
        .CRCLength = SPI_CRC_LENGTH_DATASIZE,
        .NSSPMode = SPI_NSS_PULSE_ENABLE,
    }};

/**
 * Display
 */
const SPIDevice display_spi = {
    .spi = &SPI_D,
    .config = {
        .Mode = SPI_MODE_MASTER,
        .Direction = SPI_DIRECTION_2LINES,
        .DataSize = SPI_DATASIZE_8BIT,
        .CLKPolarity = SPI_POLARITY_LOW,
        .CLKPhase = SPI_PHASE_1EDGE,
        .NSS = SPI_NSS_SOFT,
        .BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16,
        .FirstBit = SPI_FIRSTBIT_MSB,
        .TIMode = SPI_TIMODE_DISABLE,
        .CRCCalculation = SPI_CRCCALCULATION_DISABLE,
        .CRCPolynomial = 7,
        .CRCLength = SPI_CRC_LENGTH_DATASIZE,
        .NSSPMode = SPI_NSS_PULSE_ENABLE,
    }};