C++ (Cpp) _spi_read_16bits Examples

Example #1

File: AP_Baro_MS5611.cpp Project: Artoko/ardupilotdev

// Public Methods //////////////////////////////////////////////////////////////
// SPI should be initialized externally
bool AP_Baro_MS5611::init( AP_PeriodicProcess *scheduler )
{
	pinMode(MS5611_CS, OUTPUT);	 // Chip select Pin
	digitalWrite(MS5611_CS, HIGH);
	delay(1);
	
	_spi_write(CMD_MS5611_RESET);
	delay(4);

	// We read the factory calibration
	C1 = _spi_read_16bits(CMD_MS5611_PROM_C1);
	C2 = _spi_read_16bits(CMD_MS5611_PROM_C2);
	C3 = _spi_read_16bits(CMD_MS5611_PROM_C3);
	C4 = _spi_read_16bits(CMD_MS5611_PROM_C4);
	C5 = _spi_read_16bits(CMD_MS5611_PROM_C5);
	C6 = _spi_read_16bits(CMD_MS5611_PROM_C6);


	//Send a command to read Temp first
	_spi_write(CMD_CONVERT_D2_OSR4096);
	_timer = micros();
	_state = 1;
	Temp=0;
	Press=0;
	
	scheduler->register_process( AP_Baro_MS5611::_update );

	healthy = true;
    return true;
}

Example #2

File: AP_Baro_MS5611.cpp Project: sumtyme/babyg-4ever

// Public Methods //////////////////////////////////////////////////////////////
// SPI should be initialized externally
bool AP_Baro_MS5611::init()
{
    _spi = hal.spi->device(AP_HAL::SPIDevice_MS5611);
    if (_spi == NULL) {
        hal.scheduler->panic(PSTR("PANIC: AP_Baro_MS5611 could not get "
                    "valid SPI device driver!"));
        return false;
    }
    _spi_sem = _spi->get_semaphore();

    hal.scheduler->suspend_timer_procs();

    _spi_write(CMD_MS5611_RESET);
    hal.scheduler->delay(4);

    // We read the factory calibration
    // The on-chip CRC is not used
    C1 = _spi_read_16bits(CMD_MS5611_PROM_C1);
    C2 = _spi_read_16bits(CMD_MS5611_PROM_C2);
    C3 = _spi_read_16bits(CMD_MS5611_PROM_C3);
    C4 = _spi_read_16bits(CMD_MS5611_PROM_C4);
    C5 = _spi_read_16bits(CMD_MS5611_PROM_C5);
    C6 = _spi_read_16bits(CMD_MS5611_PROM_C6);


    //Send a command to read Temp first
    _spi_write(CMD_CONVERT_D2_OSR4096);
    _timer = hal.scheduler->micros();
    _state = 0;
    Temp=0;
    Press=0;

    _s_D1 = 0;
    _s_D2 = 0;
    _d1_count = 0;
    _d2_count = 0;

    hal.scheduler->register_timer_process( AP_Baro_MS5611::_update );
    hal.scheduler->resume_timer_procs();

    // wait for at least one value to be read
    uint32_t tstart = hal.scheduler->millis();
    while (!_updated) {
        hal.scheduler->delay(10);
        if (hal.scheduler->millis() - tstart > 1000) {
            hal.scheduler->panic(PSTR("PANIC: AP_Baro_MS5611 took more than "
                        "1000ms to initialize"));
            healthy = false;
            return false;
        }
    }

    healthy = true;
    return true;
}

Example #3

File: BaroSPI_MS5611.cpp Project: QuadTinnakon/TK_QuadDue32bit_FullSensor

// Public Methods //////////////////////////////////////////////////////////////
// SPI should be initialized externally
bool AP_Baro_MS5611::init()
{
    //scheduler->suspend_timer();

    pinMode(MS5611_CS, OUTPUT);          // Chip select Pin
    digitalWrite(MS5611_CS, HIGH);
    delay(1);

    _spi_write(CMD_MS5611_RESET);
    delay(4);

    // We read the factory calibration
    // The on-chip CRC is not used
    C1 = _spi_read_16bits(CMD_MS5611_PROM_C1);
    C2 = _spi_read_16bits(CMD_MS5611_PROM_C2);
    C3 = _spi_read_16bits(CMD_MS5611_PROM_C3);
    C4 = _spi_read_16bits(CMD_MS5611_PROM_C4);
    C5 = _spi_read_16bits(CMD_MS5611_PROM_C5);
    C6 = _spi_read_16bits(CMD_MS5611_PROM_C6);


    //Send a command to read Temp first
    _spi_write(CMD_CONVERT_D2_OSR4096);
    _timer = micros();
    _state = 0;
    Temp=0;
    Press=0;

    _s_D1 = 0;
    _s_D2 = 0;
    _d1_count = 0;
    _d2_count = 0;

    //scheduler->resume_timer();
    //scheduler->register_process( AP_Baro_MS5611::_update );

    // wait for at least one value to be read
    while (!_updated) ;

    //healthy = true;
    return true;
}