MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 MX29LB160B Write Failure		  New Topic  Reply to Topic
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govna

United Kingdom
15 Posts
Posted - 03/02/2008 :  10:28:44  Show Profile  Reply with Quote
You know this true usb programmer i ordered is more problem then it is worth i wish i never ordered it now.! i think it may be faulty??


Anyway i am having problem writing back to a MX29LV160B chip it fails at 25% i can blank the chip and erase FINE just fails on write each time!.


h**p://www.mcumall.com/forum/uploaded/govna/20083211732_untitled.JPG

I've connected my Willem Programmer as follows...!

h**p://www.mcumall.com/forum/uploaded/govna/200832111647_Image014.jpg

h**p://www.mcumall.com/forum/uploaded/govna/200832111714_Image016.jpg


As you can see A19 and A20 are connected jumper is set to 5V i.e it's closed. so why the hell wont it write i've tried diffrent 29lv160 settings like atmel and generic etc no success always fails 25 percent no matter what dump i write to the chip with i have searched the forums tried all the things suggested but i am getting really frustrated as i havn't been able to write to any chips since i ordered this TRUE USB PROGRAMMER!
Reply #1

govna

United Kingdom
15 Posts
Posted - 03/02/2008 :  11:39:09  Show Profile  Reply with Quote
how is it incorrect ezosat its going to a19 what should be correct configuration
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Reply #2

govna

United Kingdom
15 Posts
Posted - 03/02/2008 :  13:45:10  Show Profile  Reply with Quote
hmm thats for a 16bit adaptor mate? this is 8bit tsop 48
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Reply #3

govna

United Kingdom
15 Posts
Posted - 03/02/2008 :  15:44:04  Show Profile  Reply with Quote
Hi ezosat thats correct and if you look in picture A19 and A20 are connected the right pin on 8bit adaptor is A23 working backwards i have inserted the cables into the right place.
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Reply #4

ZLM

2945 Posts
Posted - 03/03/2008 :  09:28:48  Show Profile  Reply with Quote
See here:


[b]Image Insert:[/b][br][br][size=1] 10.78 KB[/size=1]
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Reply #5

govna

United Kingdom
15 Posts
Posted - 03/04/2008 :  01:15:23  Show Profile  Reply with Quote
FINALLY IT WORKED PRAISE THE LORD LOL!
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