Method spi_read_8

Software/C/GoPiGo3.cpp:23–36

}

int GoPiGo3::spi_read_8(uint8_t msg_type, uint8_t &value){
  value = 0;
  spi_array_out[0] = Address;
  spi_array_out[1] = msg_type;
  // assign error to the value returned by spi_transfer_array, and if not 0:
  if(int error = spi_transfer_array(5, spi_array_out, spi_array_in)){
    return error;
  }
  if(spi_array_in[3] != 0xA5){
    return ERROR_SPI_RESPONSE;
  }
  value = spi_array_in[4];
  return ERROR_NONE;
}

int GoPiGo3::spi_read_16(uint8_t msg_type, uint16_t &value){
  value = 0;