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HDS2 Emulator phantom interrupt problem

chriscummaudo9
Associate
Posted on November 19, 2003 at 17:51

HDS2 Emulator phantom interrupt problem

1 REPLY 1
chriscummaudo9
Associate
Posted on November 19, 2003 at 17:51

Hi Everyone,

I am currently using the HDS2 emulator to emulate the ST72T511R9.

When I enable interrupts in my software, a phantom interrupt is immediately generated - at vector location FFE0-FFE1. The data sheet tells me that this is a PWM-ART overflow interrupt. This occurs even though the interrupt is disabled in the ARTCSR (PWM control status reg).

To be sure, inside the interrupt I read ARTCSR and then clear it again.

The interrupt is continuously re-entered and I can't seem to stop it!!

Any ideas anyone?

Thanks in advance.