Missing some interrupts

Jon Smirl jonsmirl at gmail.com
Sat Jun 6 23:34:35 EST 2009


On Sat, Jun 6, 2009 at 9:17 AM, wael showair<showair2003 at yahoo.com> wrote:
>
> Hi All,
> i have a freescale board, that contains MPC8555 processor & DSP-core
> there is a GPIO connecting the DSP-core into an input pin of the OpenPIC of
> the MPC8555 processor.
>
> i test one interrupt from the DSP-core to the MPC8555 processor where i
> configure this interrupt line to be edge-triggered (falling edge) & i
> receive it successfully
> but
> when i generate this interrupt 10 successive times using for loop
> i just receive 2 interrupts?
>
> why can't i receive the 8 other interrupts?
> i print the value of every irq number inside do_IRQ & i found that i receive
> the DSP-interrupt just only twice.
>
> do u have any suggestions to solve this problem?
> i want to make sure that i can receive 10 interrupts

Don't do a printk() with interrupts disabled. A printk() takes 1.5ms
on a mpc5200.


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-- 
Jon Smirl
jonsmirl at gmail.com


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