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Help me about RTOS with CCS!

 
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Help me about RTOS with CCS!
PostPosted: Sat Sep 27, 2008 1:57 am     Reply with quote
I'm learning RTOS with PIC16f877A and CCS C. But I don't know how to set the priority for each task. Does CCS C have a function which can set the priority for tasks? Thanks for your help!
Ttelmah
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PostPosted: Sat Sep 27, 2008 2:57 am     Reply with quote
No.
The RTOS implements _co-operative_ multi-tasking, _not_ 'pre-emptive' multi-tasking.
Hence no 'priorities'.
Your individual tasks, have to 'co-operate', and release the processor when needed.
This is like the multi-tasking on the older Windows releases, and is why on these, an application that sat (for example), polling the keyboard, could 'lock up' the rest of the OS.

Best Wishes
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