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semaj
United Kingdom
6 Posts |
 Posted - 01/17/2011 : 03:45:21
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Hello
i am trying to reprogram some bios chips,they are winbond 25x80.i can read them ok,but can,not erase or program them,the message that comes up after it try's to write to the chip is..error at 0x000000 Chip = 0xff buffer = 0x61,,,think its a write protect problem
i am using ver pcb50a
any thoughts anyone
thanks in advance |
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| Reply #1
semaj
United Kingdom
6 Posts |
Posted - 01/17/2011 : 14:49:21
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hi and thanks
Electronic id manufacture 0xef winbond
device code 0x3014 w25x80
status register 0xfc 1111 1100
to get the id to work pin 3 has to be disconected,you can then read the chip, |
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| Reply #2
semaj
United Kingdom
6 Posts |
Posted - 02/01/2011 : 06:53:46
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HI
Still having no joy,i can read a 25x80 winbond, erase it,reprogram it,but i still get... error at 0x000000 chip=0x42 buffer=0x61 .the data it writes to the chip is not the same as the data in the buffer,i dont have a problem with MX25L800M chips,or SST25VF08OB chips,(thats with pin 3 not conected),all the id's read ok |
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| Reply #3
semaj
United Kingdom
6 Posts |
Posted - 02/04/2011 : 10:57:21
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| nobody knows then.? |
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| Reply #4
semaj
United Kingdom
6 Posts |
Posted - 02/05/2011 : 02:17:15
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| hi,its pcb50b,the chips erase ok,ive closed the software and restarted it,blank test the chip and it,s blank,but when i reprogram it the data is not the same as what i've loaded in the buffer,it fails on the verify ,error at 0x000000 chip=0x42 buffer=0x61, |
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| Reply #5
semaj
United Kingdom
6 Posts |
Posted - 02/05/2011 : 02:23:19
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| i have noticed when you use autoselect chip,in the device select it reads the chip as winbond 25x080 |
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| Reply #6
sudi
1 Posts |
Posted - 06/18/2011 : 04:03:12
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anyone know, where to download software version 0.98d12?
please your help. |
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Topic |
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writing to a winbond
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