I've burned many 165 27c256 and 29c256 PROMs successfully with my Pocket Programmer 2 and have read several stock PROMs with it but I'm having a problem with a NEW AUJP1615 MEMCAL.

Everytime I read it the 1st x00000, 00100, 00200 and every 16th line after that is all 'FF'. I can pull this MEMCAL out and read any of my other three 165's just fine so it's not my MEMCAL to PP adapter.

Anyone ever see this problem before and any ideas what it may be. Bad MEMCAL maybe. Guess I should check continuity? I'm going to replace the 27c256 with a AT29c256 anyway but if the PROM carrier (MEMCAL) is bad I may try to return it for a exchange. Besides, I wanted to save the AUJP program.

Thanks in advance,



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SMasterson

 

I'll reply to myself.

The program burned into the chip was actually bad. I removed the PROM chip, read it with my PP2 and it still has errors. Looks like their burner had a pin missing that caused data to be left blank "FF".
I guess they don't verify them.

Anyway, working fine with a AT29C256 in it and I'm MAF-less NOW! SD tuning here I come!



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SMasterson