14 Mar
2015
14 Mar
'15
3:11 a.m.
On Fri, 13 Mar 2015, Chuck Guzis wrote:
On 03/13/2015 06:51 PM, Jon Elson wrote:
Most of the Chinese made programmers I've seen have been either outright
copies or variations of Willem's designs. I seem to remember some of his
later board versions used a relay which would allow them to program
devices that required more current during programming.
http://web.archive.org/web/20090501014807/http://www.willem.org/
I use a Xeltek Superpro/Z, which supports most
EPROMS going way back.
It supports the 2732, and may support some 16K EPROMS, too. You won't
find ANYTHING that supports 1702 devices, they needed 80 V to program.
Well, as with any tool, it depends on what you're planning on doing.
Do you foresee the need to program PALs? GALs? MCUs?
How about testing old TTL packages?
Do you need program the old 3-rail EPROMs? (e.g. 2704, 2708)?
I like the Xeltek Superpro as well. I'm a little shy about the Chinese
USB models because you don't know what the heck is in them. But you
can't beat the price. Some folks like the Willem-based programmers.