MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X, GQ-3X, GQ-4X)
 Problem reading/writing AM29F800 BB
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nik7dob@gmail.com

Bulgaria
8 Posts

Posted - 03/16/2015 :  16:22:36  Show Profile  Reply with Quote
Well... so I read that flash and copied it to another chip. I put the ECU back and the car wont start, ant there is no comunication trough CAN - the ECU is dead. After 3 hours soldering and desoldering thetwo flash chips on the two same ECUs I found that GQ-4X read the first 50% of the file and after that read it again ne more time, so at the end of reading I have file 1024 kb and inside are 2 exactly same codes 2 x 512 kb.
When I wtite to the chip if the file is 2 x 512 same code , write and verify it good. But when I changed the first 50% of the file ot second, then the programer write it double and the vertification failed at the adress I changed the code. Please help me, the customer is waiting for the car. That wasnt the proper moment for failing with that programer...
I read/write AM 28F400 BB with no problem

Edited by - nik7dob@gmail.com on 03/16/2015 16:23:31
Reply #1

nik7dob@gmail.com

Bulgaria
8 Posts

Posted - 03/17/2015 :  08:40:00  Show Profile  Reply with Quote
Somebody with information about that issue?
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Reply #2

nik7dob@gmail.com

Bulgaria
8 Posts

Posted - 03/18/2015 :  00:51:35  Show Profile  Reply with Quote
ZLM, any ideas? Its urgent... The programmer can work with 29F800, but now dont work good, why I bought this programmer?
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Reply #3

ZLM

2923 Posts

Posted - 03/18/2015 :  13:56:21  Show Profile  Reply with Quote
It seems the A19 lost connection.

If you are not using ADP-019 from MCUmall, then you need to make sure the A19 is connected between programmer and the adapter.

The ADP-019 V2 or V4 has buit in A19 connection on GQ-4X. But all other paralle Willem programmer adapter have no 19 connection, you need to connect it manually on GQ-4X.

See:
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