I found my problem and it had nothing to do with the DSP.
Thank you,
Don
On 2008, Jul, 3, at 3:02 PM, woshidon wrote:
> Hello. My name is Don and I have a question about the
6727 UHPI.
>
> I want to use the bit in the HPIC (hint) that the DSP can write to
> to generate and interrupt in
> its host as a simple flag. I have the interrupt pin actually gpio'd
> and unused. But I thought I
> should be able to set the bit in the DSP and let the host see it and
> reset it it by writing a one
> back to the bit.
>
> Well, I can set it from the DSP but I can also write a one to it all
> day without effect.
>
> Must the interrupt pin be active?
>
> There is also a remark in the pdf about 'acknowledging the
> interrupt' which I took to mean
> handling an interrupt routine, and since there was no such routine
> there would be nothing to
> do. I also searched the pdf to see if there was some place I was
> supposed to deal with this
> interrupt besides the HPIC and I found nothing.
>
> Any thoughts on what I missed or recommendations?
>
> Don
>