Event Example

This example demonstrates the handling of an External Digital IO wakeup event. RunsOnExtDigitalIOWakeup job is scheduled when the External Digital IO is pulled Low.

 
#include <stdio.h>
#include "flex.h"
 
#define APPLICATION_NAME "External Digital I/O Wake-up Event"
 
// Note: Change this to set the desired External Digital IO Pin for wakeup.
const FLEX_DigitalIOPin WakeupPin = FLEX_EXT_DIGITAL_IO_1;
 
static void RunsOnExtDigitalIOWakeup() {
  printf("Woken up by External Digital IO @ %u\n", (unsigned int)FLEX_TimeGet());
 
  printf("External Digital IO %u level is %s\n", (unsigned int)WakeupPin + 1,
    ((FLEX_ExtDigitalIOGet(WakeupPin) == FLEX_EXT_DIGITAL_IO_HIGH) ? "high" : "low"));
}
 
void FLEX_AppInit() {
  printf("%s\n", APPLICATION_NAME);
 
  // Enabling the Digital IO Wakeup
  FLEX_ExtDigitalIOWakeupModify(WakeupPin, FLEX_EXT_DIGITAL_IO_WAKEUP_ENABLE);
 
  // Registering the Wakeup handler
  FLEX_ExtDigitalIOWakeupHandlerModify(RunsOnExtDigitalIOWakeup, FLEX_HANDLER_MODIFY_ADD);
}