hw_spi.h

Go to the documentation of this file.

 
#pragma once
 
#include "hardware/spi.h"
 
#include "pico/stdlib.h"

struct struct_ConfigMasterSPI
{
    spi_inst_t *spi = spi1;
    uint sck_pin = 10;
    uint tx_pin = 11;
    uint rx_pin = 12;
    uint cs_pin = 13;
    uint baud_rate_Hz = 1000 * 1000;
    spi_cpha_t clk_phase = SPI_CPHA_0;
    spi_cpol_t spi_polarity = SPI_CPOL_0;
    spi_order_t bit_order = SPI_MSB_FIRST;
};

class HW_SPI_Master
{
private:
    spi_inst_t *spi;
 
public:
    HW_SPI_Master(struct_ConfigMasterSPI master_config);
    ~HW_SPI_Master();

    int burst_write_8(uint8_t *src, size_t len);
    int burst_write_16(uint16_t *src, size_t len);

    int burst_write_read_8(uint8_t *src, uint8_t *dest, size_t len);

    int single_write_8(uint8_t byte_value);
    int single_write_16(uint16_t word_value);

    int single_read_8(uint8_t *dest);

    int burst_read_8(uint8_t repeated_tx_data, uint8_t *dest, size_t len);

    bool device_is_connected(uint8_t slave_address);
};