RE: APP_TIMER in sdk v14 build errors when migrating from v12.3

Ed — Tue, 17 Oct 2017 12:07:25 GMT

Thank you for clarifying this.

RE: APP_TIMER in sdk v14 build errors when migrating from v12.3

Sigurd — Tue, 17 Oct 2017 09:26:59 GMT

Hi,

APP_TIMER_USER_OP_SIZE was used internally in the app timer library to calculate the required application timer buffer size(in bytes), based on the OP_QUEUE_SIZE that was used when initializing the app timer.

APP_TIMER_INIT(PRESCALER, OP_QUEUE_SIZE, SCHEDULER_FUNC);

In SDK 13 the static configuration of the app timer module was moved to sdk_config.h, and OP_QUEUE_SIZE was replaced with APP_TIMER_CONFIG_OP_QUEUE_SIZE (defined in sdk_config.h), and APP_TIMER_USER_OP_SIZE was no longer needed.

The app timer is now initialized like this

err_code = app_timer_init();

Make sure that you are using both the updated app_timer.c and app_timer.h in your project.

For more information about migrating the app timer see the migration note.