How to get rom code to go on FADS?

Dan A. Dickey ddickey at charter.net
Thu May 18 13:22:43 EST 2000


Dan Malek wrote:
>
> Richard Hendricks wrote:
>
> > Interesting.  So clearing the SYPCR early in the ROM code is what
> > was preventing you from getting the code to run stand-alone?
>
> Oh, yes.  Clearing SYPCR is a very bad thing.  You end up with counter
> values set to zero and immediately time out.  It seems a little strange,
> as you have also cleared the enable flags.  I am sure someone at SPS
> could explain the transistors flipping inside the part to make this
> happen.

Ok ok...not *clearing* SYPCR.  :)

Just setting it to 0xFFFFFF88.
	-Dan

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