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VP-390 problems Reply  
handsome
Wildeman
 I"m programming ST M27C160 and ST M27C800 and getting this error:

>>.Auto Program......
>>.Blank Check......
>>Device Address:00000000H　Device Data:FFFFH　Buffer Data:4DC8H
>>Auto Program fail!
>> 4,54Sec

I used different Eproms but still got this error. Last month I have no problems with those eproms and I even programmed today a ST M271000 with NO errors??I"m using a VP-390 S/N 3903-1302 with system software 4.6.1. System update doesn"t seems to work. What can I do?

Go back list [ Posted:2013-03-08 05:14:15 ] Edit Administer top

Re:VP-390 problems Reply  
beautiful
cm
 Hello!
Did you erase the chip with UV eraser? Please erase this chip with UV eraser, and the eraser time should be 30 minutes at least.
Go back list [ Posted:2013-03-08 09:15:41 ] Edit Administer Top

Re:VP-390 problems Reply  
handsome
Wildeman
 I"ve done that. Same result. Still >>Auto Program fail!

>>.Blank Check......
>>Blank Check OK!
>> 4,59Sec
----------------------------!

>>.Auto Program......
>>.Blank Check......
>>Device Address:00000000H　Device Data:FFFFH　Buffer Data:4DC8H
>>Auto Program fail!
>> 4,55Sec
----------------------------!

I have it now also on other EPROMS like 27C010A. What can I do? I"m on Firmware 18.0

[ The message is modified by Wildeman ]
Go back list [ Posted:2013-03-09 05:26:36 ] Edit Administer Top

Re:VP-390 problems Reply  
handsome
lxl
 our test is OK!
maybe your chip is bad.this chip is elder..
Go back list [ Posted:2013-03-11 09:12:47 ] Edit Administer Top

Re:VP-390 problems Reply  
handsome
Wildeman
 Hello, I"ve tried 10 different Eproms. They all gave the same error. I"don"t think the chips are bad I think its the programmer. Can I adjust the algorythm parameters? Now VCC=5 V and VPP=12,50 V. I read the 27C160 datasheet and found VCC=6,25.
Go back list [ Posted:2013-03-13 02:37:57 ] Edit Administer Top

Re:VP-390 problems Reply  
beautiful
jin
 When we will read the M27C160, the vcc is 5v. And when writing it, the vcc is 6.25v. We have supported 6.25v in our software when writing this chip.
Go back list [ Posted:2013-03-13 09:37:27 ] Edit Administer Top

Re:VP-390 problems Reply  
handsome
Wildeman
 ok thnx for the answer. Still two questions: 1. is there another way to check if the programmer is working correctly besides the one provided in the software? 2. How can I test these Eproms?
Go back list [ Posted:2013-03-13 15:36:38 ] Edit Administer Top

Re:VP-390 problems Reply  
handsome
lxl
 please use another programer to write these chips.
Go back list [ Posted:2013-03-14 07:04:46 ] Edit Administer Top

Re:VP-390 problems Reply  
handsome
Wildeman
 Today I wrote all the EPROMS (M27C160 and M27C800) just fine with a Willem GQ-4X programmer with adapter. Amazing it didn"t work with my Wellon VP-390 ....... I still think its the programmer (or the software)
Go back list [ Posted:2013-04-06 01:33:20 ] Edit Administer Top
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