change SCHED_MAX_EVENT_DATA_SIZE and device stall

[tian]

I want to use app sched feature, so as example does, I call: static void scheduler_init(void) { APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE); }

since I have my own event data, the max size is 9, so I changed the SCHED_MAX_EVENT_DATA_SIZE to 9, the old is 8. after flashed and restart the device, it's stall and cannot be scanned. if change to 12 which I believe is int aligned, device runs smoothly. so should the event size always be uint32 aligned?

[Hung Bui]

Hi Tian,

SCHED_MAX_EVENT_DATA_SIZE need to be multiple of 4 as we store the data event in a uint8_t array. Having SCHED_MAX_EVENT_DATA_SIZE = 9 will cause the 2nd record of the data event array to be not word aligned and when we assign that data directly in an event handler, we will get a Hardfault.

[tian]

thanks, it's clear now.