27 Jan
2012
27 Jan
'12
1:01 p.m.
A friend of mine discovered how sivava modded the Willem and published a
page
http://www.py2bbs.qsl.br/willem_pcb45.php
---
Enviado do meu Motorola PT550
Meu site: http://www.tabalabs.com.br
----- Original Message -----
From: "Steven Hirsch" <snhirsch at gmail.com>
To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
Sent: Friday, January 27, 2012 10:31 AM
Subject: Re: Willem EPROM programmer
On Thu, 26 Jan 2012, David Griffith wrote:
On Thu, 26 Jan 2012, Richard wrote:
> Does anyone have any experience with this device? It's inexpensive
> and seems like it might handle the needs of ROM/PROM/EPROM dumping and
> EE/EPROM programming.
I've pondered getting one for a few years.
What's stopping me is that it
seems really poorly documented. It seems like it would be a cinch to
work with Linux, but I don't know...
I would stay away from the Sivava unit. I bought one several years ago
and discovered:
- It's a proprietary mod of the Willem with a closed-source fork of the
Willem software.
- It's poorly documented
- The seller does not repond to e-mail
- The seller aggravated many in the Willem community with his actions.
- The DC-DC voltage converter, required for blowing older 2716/2732 EPROMs
is very lightweight and cannot sink enough current to do a good job on the
"non-A" variants of these chips.
I ended up writing off the investment and buying a new Andromeda Research
unit. These have excellent support and the vendor will gladly sell blank
boards and schematics for the various personality adapters - a big plus
since the costs on those can add up.
Steve
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