Re: [ECOS] Problem in FIQ with ecos for arm(at91sam7x)

[Mervin J <mervin_j at cms dot com>]

Hi
   I am using the latest version taken from CVS. The Board is 
AT91SAM7X256 Development Board. I am using the default configuration 
with FIQ treated as IRQ. The code is attached.
   Initialization code:
   /* Configure FIQ */
   HAL_ARM_AT91_PIO_CFG(AT91_INT_FIQ);
   HAL_WRITE_UINT32(AT91_PIOA + AT91_PIO_PPUER,AT91_PIO_PSR_FIQ);
   cyg_interrupt_create(CYGNUM_HAL_INTERRUPT_FIQ, 7, 0, ui32FiqIsr,
                                            NULL, &fiq_handle, &fiq_space);
   cyg_interrupt_configure(CYGNUM_HAL_INTERRUPT_FIQ,0,0);
   cyg_interrupt_attach(fiq_handle);
   cyg_interrupt_unmask(CYGNUM_HAL_INTERRUPT_FIQ);

Handler code:

static cyg_uint32 ui32FiqIsr(cyg_vector_t vector, cyg_addrword_t word)
{
   ade_int_proc_fp++;
   // Tell the processor that we have received
   // the interrupt.
   cyg_interrupt_acknowledge(vector);
   return(CYG_ISR_HANDLED);
}

Please suggest the handling way if it is wrong.

Regards,


Mervin J,

Martin Laabs wrote:
> Hi,
>
> > working without any problem.    Please help to solve the problem.
>
> We can't help you with so little information. Give us more 
> information. Whats your system consist of, which eCos version do you 
> use, which configuration (HAL only, Kernel etc.) Have you wrote the 
> FIQ handler in assembler, how is the FIQ handeled (via the eCos 
> interrupt system or dedicated?)
> What did you tried until yet to find the bug, post your code if it's 
> not to big. (Or at least the important parts.) If in C - post also the 
> initialization of the FIQ.
>
> Greetings,
>  Martin Laabs





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