[Coco] eprom programmer

[Tonypodraza]

I once programmed 2eight k ams one 16k dosses onto a 27256 eprom and selected tje dos version that way


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-------- Original message --------
Subject: Re: [Coco] eprom programmer 
From: Chad H <chadbh74 at hotmail.com> 
To: 'CoCoList for Color Computer Enthusiasts' <coco at maltedmedia.com> 
CC:  

Hmm...so let me see if my thinking is correct here...

I currently have a 8K 2764 EPROM in my 502 Controller... If I replaced this
with a 27128 16K chip I could combine 2 .ROM files, write them, but I would
be stuck on either the low or high bank.

Now Darren said the high address line was tied to Vcc on the controller.
What if I removed that and ran the Vcc to a switch along with ground and
used the switch to flip Vcc/Ground on the high address pin...  Would this
achieve the bank switching effect?

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of gene heskett
Sent: Saturday, March 24, 2012 10:54 AM
To: coco at maltedmedia.com
Subject: Re: [Coco] eprom programmer

On Saturday, March 24, 2012 11:53:37 AM Chad H did opine:

> Is this how you would switch banks in the chip too?
> 
Yes.

Cheers, Gene
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