MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 burning 87c257 help please		  Forum Locked
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kelvin

United Kingdom
2 Posts
Posted - 01/15/2011 :  07:53:32  Show Profile
hi all new here i am trying to burn 87c257 chips but keep getting this error

error at 0x000000 chip = 0xff buffer =0x02

my programmer is a usb one which is this one


Image Insert:

86.61 KB
any help would be greatfull accepted
Reply #1

ZLM

2945 Posts
Posted - 01/16/2011 :  20:24:15  Show Profile
Check the VPP if it has 12V.
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Reply #2

kelvin

United Kingdom
2 Posts
Posted - 01/17/2011 :  13:43:06  Show Profile
i am getting 12.44v from vpp
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