Function _write_block

components/drivers/spi/dev_spi_msd.c:378–435

}

static rt_err_t _write_block(struct rt_spi_device *device, const void *buffer, uint32_t block_size, uint8_t token)
{
    struct rt_spi_message message;
    uint8_t send_buffer[16];

    rt_memset(send_buffer, DUMMY, sizeof(send_buffer));
    send_buffer[sizeof(send_buffer) - 1] = token;

    /* send start block token */
    {
        /* initial message */
        message.send_buf = send_buffer;
        message.recv_buf = RT_NULL;
        message.length = sizeof(send_buffer);
        message.cs_take = message.cs_release = 0;

        /* transfer message */
        device->bus->ops->xfer(device, &message);
    }

    /* send data */
    {
        /* initial message */
        message.send_buf = buffer;
        message.recv_buf = RT_NULL;
        message.length = block_size;
        message.cs_take = message.cs_release = 0;

        /* transfer message */
        device->bus->ops->xfer(device, &message);
    }

    /* put crc and get data response */
    {
        uint8_t recv_buffer[3];
        uint8_t response;

        /* initial message */
        message.send_buf = send_buffer;
        message.recv_buf = recv_buffer;
        message.length = sizeof(recv_buffer);
        message.cs_take = message.cs_release = 0;

        /* transfer message */
        device->bus->ops->xfer(device, &message);

//        response = 0x0E & recv_buffer[2];
        response = MSD_GET_DATA_RESPONSE(recv_buffer[2]);
        if (response != MSD_DATA_OK)
        {
            MSD_DEBUG("[err] write block fail! data response : 0x%02X\r\n", response);
            return -RT_ERROR;
        }
    }

    /* wati ready */
    return _wait_ready(device);
}