[Coco] Re: [Color Computer] Sam/Ram question.

[Phill Harvey-Smith]

Mike Pepe wrote:
> Gene Heskett wrote:
>> On Wednesday 28 December 2005 06:47, Phill Harvey-Smith wrote:
> ...what Gene said is true, though some CoCo models don't have resistors 
> there, they instead have small ferrite beads. I don't suspect that would 
> cause the problem you're seeing (though it might)
 >
> Have you modified the CoCo ROM to put the SAM into SRAM mode? Maybe all 
> the superfluous refreshing is causing some glitching or timing problems.

No, trying to make a module that will work as a straight replacement, 
though my PLD, does suppress reads when both /HS and E are low, which is 
  when acording to the SAM datasheet the refresh takes place.

Could be of course that my timing is still slightly out....

Phill.


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