SAM4S2A ioport

ASF Wizard

• IOPORT - General purpose I/O service (service): IOPORT - General purpose I/O driver that includes functions for various I/O operations (set direction, set/get pin value, toggle pins etc.) Common API for XMEGA, UC3 and SAM.

Enum

/** \brief IOPORT pin directions */
enum ioport_direction {
    IOPORT_DIR_INPUT,  /*!< IOPORT input direction */
    IOPORT_DIR_OUTPUT, /*!< IOPORT output direction */
};

/** \brief IOPORT levels */
enum ioport_value {
    IOPORT_PIN_LEVEL_LOW,  /*!< IOPORT pin value low */
    IOPORT_PIN_LEVEL_HIGH, /*!< IOPORT pin value high */
};

/** \brief IOPORT edge sense modes */
enum ioport_sense {
    IOPORT_SENSE_BOTHEDGES,  /*!< IOPORT sense both rising and falling edges */
    IOPORT_SENSE_FALLING,    /*!< IOPORT sense falling edges */
    IOPORT_SENSE_RISING,     /*!< IOPORT sense rising edges */
    IOPORT_SENSE_LEVEL_LOW,  /*!< IOPORT sense low level  */
    IOPORT_SENSE_LEVEL_HIGH, /*!< IOPORT sense High level  */
};

Examples

#include <asf.h>

#define MY_LED IOPORT_CREATE_PIN(PIOA, 10)

int main(void) {
    sysclk_init();
    board_init();
    /* Insert application code here, after the board has been initialized. */
    wdt_disable(WDT);

    delay_init(F_CPU);

    ioport_init();
    ioport_set_pin_dir(MY_LED, IOPORT_DIR_OUTPUT);

    for(;;) {
        ioport_toggle_pin_level(MY_LED);
        delay_ms(100);
    }
}