ra8-firmware/ra8__io__spi__bus__internal_8h_source.html

#pragma once


#ifdef __cplusplus

extern "C" {

#endif


#include <stdint.h>


#include "ra8_err.h"

#include "ra8_io_spi_bus.h"

#include "ra8_spi.h"


struct ra8_io_spi_bus_iface {

  ra8_err_t (*xfer8)(void* ctx, uint8_t tx, uint8_t* rx);


  ra8_err_t (

    *write_read)(void* ctx, const void* tx, void* rx, uint32_t len, ra8_spi_bit_width_t width);


  ra8_err_t (*set_clock)(void* ctx, uint32_t baud_hz, uint32_t pclk_hz);

};


#ifdef __cplusplus

}

#endif

ra8_err.h
Error Code Definitions for ra8-firmware.

ra8_err_t
ra8_err_codes_t ra8_err_t
Canonical error-return type used by every ra8-firmware API.
Definition ra8_err.h:546

ra8_io_spi_bus.h
ra8_io SPI-bus facade – one controller-transfer vtable over thechip's two SPI implementations.

ra8_spi.h
SPI_B controller driver (RA8D2 Type-B SPI peripheral).

ra8_spi_bit_width_t
ra8_spi_bit_width_t
Per-frame bit width for multi-byte transfers.
Definition ra8_spi.h:84

ra8_io_spi_bus_iface
Opaque to applications – backends implement this internally and export a binding helper through their...
Definition ra8_io_spi_bus_internal.h:50

ra8_io_spi_bus_iface::set_clock
ra8_err_t(* set_clock)(void *ctx, uint32_t baud_hz, uint32_t pclk_hz)
Re-program the bit-rate divider from baud_hz / pclk_hz.
Definition ra8_io_spi_bus_internal.h:59

ra8_io_spi_bus_iface::xfer8
ra8_err_t(* xfer8)(void *ctx, uint8_t tx, uint8_t *rx)
Full-duplex single-byte exchange (rx may be NULL).
Definition ra8_io_spi_bus_internal.h:52

ra8_io_spi_bus_iface::write_read
ra8_err_t(* write_read)(void *ctx, const void *tx, void *rx, uint32_t len, ra8_spi_bit_width_t width)
Full-duplex multi-frame transfer (either buffer may be NULL).
Definition ra8_io_spi_bus_internal.h:56