MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 permanent writing error with 27C322
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caventou

3 Posts

Posted - 06/07/2013 :  09:56:41  Show Profile  Reply with Quote
Hello

I have a GQ-4X with a ADP-054 adaptator, i have permanently this error when writing on 27C322 :

Write failed, Address=0x200100, Buffer=0xFF Device=0x45

It happened 3 times with 3 different chips, same message, I suppose my adaptator has a failure because I can write on 27C801 without any issue

Edited by - caventou on 06/07/2013 09:56:57
Reply #1

ZLM

2945 Posts

Posted - 06/09/2013 :  22:40:05  Show Profile  Reply with Quote
If you got exact same error, then try to switch the J5 between V3 and V4.

Try to use a 9V external power and see if it works.

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Reply #2

caventou

3 Posts

Posted - 06/12/2013 :  11:55:19  Show Profile  Reply with Quote
Thanks for your answer but I don't get how I should switch with this kind of adaptator ?

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Reply #3

ZLM

2945 Posts

Posted - 06/12/2013 :  22:58:09  Show Profile  Reply with Quote
There is a 3 pins jumper, set it to left side for V3 and right side for V4.
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Reply #4

caventou

3 Posts

Posted - 06/13/2013 :  07:01:28  Show Profile  Reply with Quote
owww my apologies, I thought this adaptator didn't required any jumper, I just saw them...Well it's never too late to learn...

Thanks for your reply, greatly appreciated I'll keep you updated if my trouble is still going on...

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Reply #5

strange

United Kingdom
1 Posts

Posted - 11/19/2013 :  08:10:42  Show Profile  Reply with Quote
i also have the same issue and i changed J5 both ways
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Reply #6

ZLM

2945 Posts

Posted - 11/23/2013 :  17:20:09  Show Profile  Reply with Quote
Chip is bad?
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Reply #7

LemonyVengeance

USA
10 Posts

Posted - 01/16/2014 :  10:12:04  Show Profile  Reply with Quote
I am having this issue as well. I have moved J1 to short pins 2&3, but not J5. I will try that out.

In the past this has worked if I set the speed to 0, but it is no longer working.

I have tried this with 7 Chips, all pass the blank check but fail the write. I have 7 more coming in today that I will test this with.
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