Counter Alarm Sample¶
This sample provides an example of alarm application using counter API. It sets an alarm with an initial delay of 2 seconds. At each alarm expiry, a new alarm is configured with a delay multiplied by 2.
In case of 1Hz frequency (RTC for example), precision is 1 second. Therefore, the sample output may differ in 1 second
This sample requires the support of a timer IP compatible with alarm setting.
Building and Running¶
west build -b disco_l475_iot1 samples/drivers/counter/alarm west build -t run
Counter alarm sample Set alarm in 2 sec !!! Alarm !!! Now: 2 Set alarm in 4 sec !!! Alarm !!! Now: 6 Set alarm in 8 sec !!! Alarm !!! Now: 14 Set alarm in 16 sec !!! Alarm !!! Now: 30 <repeats endlessly>