Exemplos de SPIDeviceDriver em C++ (Cpp)

Exemplo n.º 1

Arquivo: BusTest.cpp Projeto: AurelienRoy/ardupilot

void loop(void)
{
    AP_HAL::SPIDeviceDriver *spi;
    AP_HAL::Semaphore *spi_sem;

    hal.console->printf("Scanning SPI bus devices\n");

    for (uint8_t i=0; i < ARRAY_SIZE(whoami_list); i++) {
        spi = hal.spi->device(whoami_list[i].dev);
        if (spi == NULL) {
            hal.console->printf("Failed to get SPI device for %s\n", whoami_list[i].name);
            continue;
        }
        spi_sem = spi->get_semaphore();
        if (!spi_sem->take(1000)) {
            hal.console->printf("Failed to get SPI semaphore for %s\n", whoami_list[i].name);
            continue;
        }
        uint8_t tx[2] = { whoami_list[i].whoami_reg, 0 };
        uint8_t rx[2];
        
        spi->transaction(tx, rx, 2);

        hal.console->printf("WHO_AM_I for %s: 0x%02x\n", whoami_list[i].name, (unsigned)rx[1]);
        spi_sem->give();
    }        
    hal.scheduler->delay(200);
}

Exemplo n.º 2

Arquivo: Semaphore.cpp Projeto: tommp/SARGoose

void setup (void) {
    hal.console->printf_P(PSTR("Starting Semaphore test\r\n"));

    setup_pin(PIN_A0);
    setup_pin(PIN_A1);
    setup_pin(PIN_A2);
    setup_pin(PIN_A3);
    
    hal.console->printf_P(PSTR("Using Dataflash's Semaphore\r\n"));

    AP_HAL::SPIDeviceDriver *dataflash = hal.spi->device(
            AP_HAL::SPIDevice_Dataflash);

    if (dataflash == NULL) {
        hal.scheduler->panic(PSTR("Error: No SPIDevice_Dataflash driver!"));
    }
   
    sem = dataflash->get_semaphore();
    if (sem == NULL) {
        hal.scheduler->panic(PSTR("Error: No SPIDeviceDriver semaphore!"));
    }

    hal.scheduler->register_timer_process(async_blinker, NULL);
}