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trying to program (st) M27c160

Bobm

Trying to program with VP-390. I want to make a copy of the original chip as a backup. Backup/Read Chip is M27c160-120F1. Program chip is to be M27c160-120F1. Backup/Read Chip M27c160-120F1 saves as 2MB.
　 Program Chip/Device loads M27c160-120F1, Size 100000H * 16 (1M * 16)
Vcc 5v　Vpp 12.5v

What am I doing wrong. file size is 2mb and chip is 1mb.
keep getting auto program fail!

Using program ver 4.7

[ The message is modified by Bobm ]

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[ Posted:2016-04-20 01:41:15 ]

Re:trying to program (st) M27c160

lxx

1M*16=2M*8

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[ Posted:2016-04-20 09:06:04 ]

Re:trying to program (st) M27c160

lxx

About M27C160,if it has a glass，it need UV eraser and it erase 40 minutes at least.

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[ Posted:2016-04-20 09:12:38 ]

Re:trying to program (st) M27c160

Bobm

Yes it has the glass, and my esarer takes about 20min, to erase chips but I let them erase for an hour. I understand the chip is capable of programming either 1m or 2m.　The chips are copying at (2M*8) 2m and programming　at (1M*16) is there some setting with the VP-390 that I have to do to make it program at (2m*8). Or does it automatically choose the size depending on the file size

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[ Posted:2016-04-22 21:27:56 ]