MCUmall EPROM BIOS Chip Burner Forum - Can't read AM28F010 with enhanced willem

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Can't read AM28F010 with enhanced willem

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Brianwuz

USA
2 Posts

Posted - 10/01/2006 : 17:25:23

I have tried with i28f selected and normal. I selected the 28f010. Read the chip and get buffer full of 00. Read it again and get all FF. Back and forth each read. If the chip were just blank then it would read the same each time.
Brian

Reply #1

ZLM

2945 Posts

Posted - 10/03/2006 : 15:56:09

If you can confirm all the jumpers and DIP are setting correctly, then you need to check the programmer is working correctly.
Just using the Test H/W to test all signal on ZIF pin are working correctlt.

Edited by - ZLM on 10/03/2006 15:56:42

Reply #2

Brianwuz

USA
2 Posts

Posted - 10/06/2006 : 16:35:36

Before Ijump into testing the programmer, has any 1 successfully read and or programmed a AM28f010 or AM28f020 with a working enhanced willem and the latest soft ver .97ja?

Reply #3

USA
46 Posts

Posted - 10/08/2006 : 08:04:51

Hi Brian,

quote:
Originally posted by Brianwuz

Before I jump into testing the programmer, has any 1 successfully read and or programmed a AM28f010 or AM28f020 with a working enhanced willem and the latest soft ver .97ja?

I don't have any AM28F020 to try, but I was able to read and verify an i28F020 with my enhanced. I can't even select AM28F020 in 0.97ja.

Watch out for the design flaws in the enhanced programmer. With Intel 28F, I was inclined to set the device selector on the programmer to i28F. But doing this puts VPP on pin30 of the socket at all times!!; even when VCC isn't enabled!!

HTH,
Dennis

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