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vPortYieldProcessor impelemntation

Posted by Hossam Alzomor on April 8, 2010
Hi

I am currently working on porting FreeRTOS to AT91SAm7A1 processor.
While navigating the code I found that vPortYieldProcessor is defined as SWI
and in boot.s I found that the SWI handler is pointing to vPortYieldProcessor
which makes an endless loop.
Am I right or there something that I can't understand?

Salam
Hossam Alzomor

RE: vPortYieldProcessor impelemntation

Posted by Hossam Alzomor on April 8, 2010
in portisr.c
/* ISR to handle manual context switches (from a call to taskYIELD()). */
void vPortYieldProcessor( void ) __attribute__((interrupt("SWI"), naked));
and in boot.s
@ address 0x00000008 ldr pc, _swi/* SWI - _swi*/
and
_swi: .word vPortYieldProcessor /* SWI*/

RE: vPortYieldProcessor impelemntation

Posted by Hossam Alzomor on April 8, 2010
I am sorry It seams that the interrupt vector is not copied correctly


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