Last year bought a Pocket programmer 2 and a romulator.
I also bought 10 Fujitsu 2732a eproms which have been sitting in the delivery envelope.
I have 2 original GM chips - ANTS & ANTT BCCs
I have 1 additional chip bought from TBICHIPS.
Total of 13 chips
When I use the PP2 (under Windows98 with disabled BIOS Power management)
I can move the 2 original GM images to buffer and save them as bins
I can move the tbichips image to buffer and save it as a bin
I can open these bins in TunerPro/Cat and they all seem fine.
The Problem
When I try to burn a new chip with my VE edits, it only seems to manage the first few addresses then fails. I can go through all 10 chips, some will fill the first line ok, some will only fill the first few addresses, some will only fill the very first address.
I can erase these (10 mins in a UV eraser) and they are all FF's and check OK.
Other points to note
When I move the GM chips to buffer the checksum is always the same, the saved image and the reread buffer images match perfectly.
The tbichps chip creates a different checksum everytime and the buffer compare shows differences - copy protection maybe ?
I am setting the vpp voltage at 21.
The partially written data does match the data in the buffer.
Is it me, the PP2, or the chips ?
I also bought 10 Fujitsu 2732a eproms which have been sitting in the delivery envelope.
I have 2 original GM chips - ANTS & ANTT BCCs
I have 1 additional chip bought from TBICHIPS.
Total of 13 chips
When I use the PP2 (under Windows98 with disabled BIOS Power management)
I can move the 2 original GM images to buffer and save them as bins
I can move the tbichips image to buffer and save it as a bin
I can open these bins in TunerPro/Cat and they all seem fine.
The Problem
When I try to burn a new chip with my VE edits, it only seems to manage the first few addresses then fails. I can go through all 10 chips, some will fill the first line ok, some will only fill the first few addresses, some will only fill the very first address.
I can erase these (10 mins in a UV eraser) and they are all FF's and check OK.
Other points to note
When I move the GM chips to buffer the checksum is always the same, the saved image and the reread buffer images match perfectly.
The tbichps chip creates a different checksum everytime and the buffer compare shows differences - copy protection maybe ?
I am setting the vpp voltage at 21.
The partially written data does match the data in the buffer.
Is it me, the PP2, or the chips ?
Supreme Member
Make sure nothing is running in the background. Try using Contrl/Alt/Del, to close everything.
Programming voltages can be funny on the 2732s, try the lowest first and then progress higher and see what happens.
If they've sat around, and been exposed to static electricity, they may be dead.
Programming voltages can be funny on the 2732s, try the lowest first and then progress higher and see what happens.
If they've sat around, and been exposed to static electricity, they may be dead.
Yes, out of desperation I have tried 12.5v 21v and 25v. but unfortunately i get the same result.
One other point is that unless i set the "detect backwards chip" to OFF i just get a DEVICE IS NOT INSERTED error.
I have checked that the dimpled end of the chip is nearest the PP2 locking handle and 4 rows are exposed towards the handle end of the zif.
I am trying to order 5 more chips but these babies are getting harder to source over here.
One other point is that unless i set the "detect backwards chip" to OFF i just get a DEVICE IS NOT INSERTED error.
I have checked that the dimpled end of the chip is nearest the PP2 locking handle and 4 rows are exposed towards the handle end of the zif.
I am trying to order 5 more chips but these babies are getting harder to source over here.
Junior Member
Just something for you to check. I had almost the same exact problem with my PP2. It turned out to be that the power adapter for the PP2 wasn't plugged into the wall!! Somehow the program still detected the PP2 and it was able to start burning the chips but would fail partway through with an error message.... Don't ask how it was able to work at all with no pwer but somehow it did 
-Rob
-Rob
Rob
Many thanks for that, turns out the polarity pip on the end of the power adapter i got in the UK had worked loose. when i clicked it back into place it all worked OK.
Thanks, i was about ready for sending it back to the US with a $50 charge.
Once again many thanks.
Many thanks for that, turns out the polarity pip on the end of the power adapter i got in the UK had worked loose. when i clicked it back into place it all worked OK.
Thanks, i was about ready for sending it back to the US with a $50 charge.
Once again many thanks.
