MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 Writing issue 93C76

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T O P I C    R E V I E W
benaknoun Posted - 10/03/2011 : 17:13:03
Hi
I have read this chip as 93C76B 16 bit, and i am trying to write new data but i get this error message in verifying process
Writing 100% and then verify failed!
What is the problem with this please?
Thanks
12   L A T E S T    R E P L I E S    (Newest First)
benaknoun Posted - 01/18/2012 : 16:17:11
Tried it, didn't work!
tried another chip from another device, same !

Will try to desolder the chip and do it on the programmer with the adapter and see what happens

Nightmare !!
ZLM Posted - 01/12/2012 : 20:03:19
Try 93C56A. If it does not work, then try 93C56B.
benaknoun Posted - 12/29/2011 : 10:26:26
Hi
The chip is 93C56 made by ST
Which chip should i select on the device list?
Maybe the problem is coming from the the device choice?

Thanks
ZLM Posted - 12/27/2011 : 10:20:38
How do you know the reading is good?
benaknoun Posted - 12/25/2011 : 10:34:57
Hi, no chip is ok
i am working on another chip 93C56, and i get the same problem
i can read ok, but can't write on it, i get the same message shown above in the photo
i updated to latest software 6.14, try slowest speed -2 and the problem is still there, same !!
Any ideas please

Thanks
ZLM Posted - 10/14/2011 : 10:52:16
chip bad?
ZLM Posted - 10/14/2011 : 10:50:46
The image should not include Space and special characters. Just use short and regular letters only.
benaknoun Posted - 10/08/2011 : 09:16:44
And why can't the pictures be uploaded in this forum?? i resized to the smallest size and still won't show!!
benaknoun Posted - 10/08/2011 : 09:15:54
quote:
Originally posted by ZLM

check the datasheet for checking 8 or 16bit information.

OR you can try both 8 bit and 16 bit to see if anyone works.

Also, you need to confirm the chip is a good chip.



Hi, i tried reading as both 8 bit and 16 bit, but the i got more clear dump with 16 bit, i modified the dump and i am trying to write but i get an error


Image Insert:

59.42 KB
ZLM Posted - 10/07/2011 : 18:38:57
check the datasheet for checking 8 or 16bit information.

OR you can try both 8 bit and 16 bit to see if anyone works.

Also, you need to confirm the chip is a good chip.
benaknoun Posted - 10/07/2011 : 17:42:03
quote:
Originally posted by ZLM

use slower speed.



Hi, i have used the slowest speed of -2 and it is the same
any other ideas?

Another question, the chip i am working on is S93C76 ADVJ6 9617
How do i know if this is 8 or 16 bit ?
ZLM Posted - 10/06/2011 : 10:26:47
use slower speed.

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