[Coco] 24 and 28 pin Eprom

[Jim Veneskey]

Have you read this lengthly discussion on the TL866?
https://www.eevblog.com/forum/blog/eevblog-411-minipro-tl866-universal-programmer-review/

(I read the entire thing last week - and then bought one myself)

Especially reply #268 where radioman makes his firmware flashing utility
available.
I used it last week to change my TL866CS into a TL866A.
Then it is just a simple matter of buying and installing the header -
Digikey part #S9493-ND

Jim


On Wed, Aug 2, 2017 at 7:32 AM, Dave Philipsen <dave at davebiz.com> wrote:

> 2764 or 27C64 for the older CoCos (8K) and 27C256 for the CoCo 3 (32K).
>
> Dave
>
> ----- Reply message -----
> From: "Carlos Camacho" <idevgames at gmail.com>
> To: <coco at maltedmedia.com>
> Subject: [Coco] 24 and 28 pin Eprom
> Date: Wed, Aug 2, 2017 6:19 AM
>
> I'm about to buy a TL866A USB burner so I can make BASIC roms for a few of
> my machines without extended BASIC.
>
> Can I get recommendations for a 28 pin eprom to buy? I'm new to burning and
> understand its very hard to find 24 pin ones now.
>
> So to refresh my memory, the older 2 rom CoCos used 24 pin Eproms. So, I'll
> need to get a 28, and make an adapter to go to 24 pin. And burn Extended
> BASIC. And the newer CoCos used a single 28 pin with both BASIC and
> Extended BASIC. So one 28 pin with both basics should do it.
>
> So, I should be looking for 28 pin for both style of CoCos.
>
> Thanks,
>
> Carlos
>
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