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);
}
}
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