Programmers and emulators

[Drew Skinner]

So the quick programming that everybody advertises is not a good thing? Is there a programmer that won't do this and is still affordable? My PP was doing weird things last week, buffer checksums before and after burns didn't match, then it wouldn't burn anything (EPROMs were still erased after a "burn") now the S/W pukes an error about "make sure power pack is connected". I have confirmed power is coming from the AC adapter, although a lot more volts than the 9VDC it says. I guess I'll box it up and shoot it back to Kansas let them figure it out. I really needed to make some target idle vs. temp changes too (cam doesn't like to idle @ 588rpm). 

Drew

>>> marcho at flash.net 02/28 10:22 AM >>>
> This idea of life span reminds of something else I was wondering
> about.  Has anyone had bit errors in their EPROMs occur after X number of
> months with the same chip?  (Hah!! Same chip for months you ask??)  The
> programming algorithm that the PP uses is mighty quick compared to the
> recommended method that the $7,000+ Data I/O unit here at work
> uses.  Programming a 27C32 "by the book" on the Data I/O takes well over 1
> minute.   The PP, about ~2 seconds.  Short cutting on the programming time
> can lead to life span problems on the data contents within the eprom.

I did have a chip that I made for somebody 6 months ago start acting up
recently. It was a 2732A I think. Just out of the blue it started running
terrible and check engine light came on. Put the stock chip in and
everything was fine again. I burned a new chip for him, and it works fine.
hmmmmm.... it was programmed with the PB-10 though, not a PP. But it did use
the 'quick' programming algorithm.

Craig M.

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org 


----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org