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add user code to RTOS tick

Posted by Jörg Krein on April 29, 2008
Hi,

we are running out of timers on our STR710.
We implemented a software timer functionality,
where we can add timers to wake up in defined intervals.
When a timer expires it should send a message in a queue.
Therefore we need some tick to call the timer control.
We intend to add a function to the FreeRTOS preemptive tick.
It than decrements all timers an does some xQueueSendFromISR
with a 'TimerXExpired' signal.
I wonder if thats possible without interfering the scheduler.

Regards,
Joerg

RE: add user code to RTOS tick

Posted by Dave on April 29, 2008
You can achieve this using the tick hook vApplicationTickHook() or by using a macro. You just need to ensure the implemented code does not block and executes quickly.


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