MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 Write failure on M27C1000 in GQ-4X
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Murray

USA
4 Posts

Posted - 08/22/2009 :  06:14:28  Show Profile  Reply with Quote
I have two M27C1000 chips that I'm trying to program with my GQ-4X. When I select the device, the message "This chip needs a wire jumper from Address header A23 to ZIF Pin24" is displayed.

The GQ-4X doesn't have an address header so I tried programming them with no jumper wire connected. Both fail at exactly the same address at 51% complete.

What can I do to get these working? Where is the equivalent of A23 on this programmer?
Reply #1

ZLM

2945 Posts

Posted - 08/24/2009 :  22:09:52  Show Profile  Reply with Quote
pin 2 of ZIF socket
or
use http://www.mcumall.com/comersus/store/comersus_viewItem.asp?idProduct=4288
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Reply #2

Murray

USA
4 Posts

Posted - 08/25/2009 :  07:57:30  Show Profile  Reply with Quote
Great, thank you!

Edit: Written and verified ok. Problem solved. :)

Edited by - Murray on 08/25/2009 10:18:12
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