Reply by Alain SALMETOZ January 31, 20082008-01-31
When entering an interrupts, you choose explicitely which interrupts will
be authorized (all are disabled by default).
It is flexible, but you must write all yourself.

Note that this does not work this way with DSP-BiOS.

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Objet : [c28x] Interrupt priorities F2812

Hi all,

I have the following problem, so to say:

How can I setup highest priority of GP Timer 1 Compare interrupt
(T1CINT) to CPU Timer0 (TINT0) interrupt. I need to service T1CINT
immediatly (stop the ISR relative to TINT0 if necessary) and then
return back and continue TINT0 ISR.

Thanks in advance.

Check Out Industry's First Single-Chip, Multi-Format, Real-Time HD Video Transcoding Solution for Commercial & Consumer End Equipment: www.ti.com/dm6467




Reply by Jan Humpl January 31, 20082008-01-31
Hi,
you can't change priorities of interrupts. However you can enable
some other interrupts in ISR. In ISR all interrupts are disabled by
default (DINT;). If you want tint1 to interrupt tint0, you must set IER
in tint0 ISR to define which interrupts are allowed during tint0 ISR,
then enable interrupts (EINT;) in tint0 ISR. All interrupts enabled in
IER will be now possible to interrupt tint0 ISR. But there still will be
small delay.

JkH
sta_enev napsal(a):
> Hi all,
>
> I have the following problem, so to say:
>
> How can I setup highest priority of GP Timer 1 Compare interrupt
> (T1CINT) to CPU Timer0 (TINT0) interrupt. I need to service T1CINT
> immediatly (stop the ISR relative to TINT0 if necessary) and then
> return back and continue TINT0 ISR.
>
> Thanks in advance.
Check Out Industry's First Single-Chip, Multi-Format, Real-Time HD Video Transcoding Solution for Commercial & Consumer End Equipment: www.ti.com/dm6467
Reply by sta_enev January 31, 20082008-01-31
Hi all,

I have the following problem, so to say:

How can I setup highest priority of GP Timer 1 Compare interrupt
(T1CINT) to CPU Timer0 (TINT0) interrupt. I need to service T1CINT
immediatly (stop the ISR relative to TINT0 if necessary) and then
return back and continue TINT0 ISR.

Thanks in advance.

Check Out Industry's First Single-Chip, Multi-Format, Real-Time HD Video Transcoding Solution for Commercial & Consumer End Equipment: www.ti.com/dm6467