Ejemplos de GPIO::init en C++ (Cpp)

Ejemplo n.º 1

Archivo: gpio_write_test.cpp Proyecto: idaohang/embed-lib

int main(int argc, char * argv[])
{
    // Parse cmd line args
    if (argc < 2)
    {
        printf("Usage: %s <gpio-pin>\n", argv[0]);
        return 1;
    }
    uint8_t gpioPin = atoi(argv[1]);

    // Setup TUI
    if (!Screen::Instance()->init())
        return 1;

    int32_t width, height;
    Screen::Instance()->size(width, height);

    // Initialize gpio
    GPIO*   gpio = NULL;
#ifdef BEAGLEBONEBLACK
    gpio = new BBBGPIO(gpioPin);
#endif

    if (gpio == NULL)
    {
        fprintf(stderr, "Error: No target device was specified when compiling this test\n");
        Screen::Instance()->destroy();
        return 1;
    }
    if (!gpio->init())
    {
        fprintf(stderr, "Error: Initializing GPIO\n");
        Screen::Instance()->destroy();
        return 1;
    }
    gpio->setMode(GPIO::OUTPUT);

    // Line content definitions
    typedef enum LINE_CONTENT_ENUM
    {
        BORDER_TOP_LINE = 0,
        TITLE_LINE,
        TITLE_SEP_LINE,
        CONTROLS_LINE,
        BORDER_BOT_LINE
    } LINE_CONTENT;

    // Print border
    Screen::Instance()->printRectangle(0, BORDER_TOP_LINE, width - 1, BORDER_BOT_LINE);

    // Print static text to screen
#ifdef BEAGLEBONEBLACK
    Screen::Instance()->printTextCenter(0, width - 1, TITLE_LINE, "embed-lib: BeagleBone Black GPIO Write Test");
#endif
    Screen::Instance()->printHLine (0, width - 1, TITLE_SEP_LINE);
    Screen::Instance()->printText(1, CONTROLS_LINE, " s - Set    r - Reset     q - Quit");

    // Main loop
    char c;
    while ((c = (Screen::Instance()->getCh())) != 'q')
    {
        switch (c)
        {
            case 's' :
                gpio->digitalWrite(1);
                break;
            case 'r' :
                gpio->digitalWrite(0);
            default:
                break;
        }
    }

    gpio->destroy();
    delete gpio;

    Screen::Instance()->destroy();
}