[Avrora] USART0, UDRE interrupt
richard at freedomwigs.com
Thu Sep 22 14:40:05 PDT 2005
Ben L. Titzer wrote:
> There may be a problem with the USART implementation; it should handle
> the posting of interrupts on its own, and your platform class need not
> implement this behavior on its own. Which microcontroller model does
> your platform use?
Hmm, I thought that's what should happen. My platform uses
> I usually test against code that I think does not rely on the
> interrupts to determine when to send the next byte, so I think I may
> not have exercised this case. I have a lot on my hands right now, but
> if you want to take a look at the relevant code, you will find it in
I'll have a look. :-)
> It may also be a bug with the interrupt mapping numbers (i.e.
> simulator posts the wrong interrupt number which is masked out by your
> program). You can check this with a probe or watch through the
> State.getInterruptTable() method, which has methods to check which
> interrupts are posted, enabled, pending, etc.
> Hope this helps,
Thanks Ben, I appreciate the pointers.
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