Posted on March 01, 2005 at 06:14Hie,
I have an RTOS, I use the Timer 0 with FIQ to get my OS tick. In Yield function, Software Interrupt is used for context switch.
And I want to use interrupt for my RS232 and CAN communication.
My problem is : each time an interrupt (RS232 or CAN) occurs that resets the processor.
The ISR are not executed. The problem occurs before the ISR ...
What could be the problem ?
Has the FIQ the highest priority ? (I understood : Yes ??)
Could I get, with this configuration a running condition ?
I made change, as Sjo said in the Timer thread, the register are saved from R0-R12. But this modification doesn't resolve my problem !!
I had a look to my interrupt configuration
->> Interrupts are correctly configured (I think!!) (Priorities, enabled, compiler mapped, ....).
And my bigger problem is :
'' How can I debug that ?? '' :| :-Y
