We are developing a product based on the Philips 89LPC936 processor and using UV3/C51 with an EPM900 successfully for some time now. Our latest revision to the PCB, however, will not program; each time we get the following error:
"*** Error: Flash CRC Check Failed at sector 7."
All earlier PCB revisions program fine, and the strange thing is these _appear_ to program fine, too, until the last sector (Sector 7) of flash. We assume it is something with the latest PCB rev, but everything _looks_ OK. Does anybody have a suggestion as to where to look, or what else might be wrong?
Thanks,
Mitch
Did you change anything in the START900.A51 file or can you verify the settings in this file.
What changed on the PCB?
Thank you for the responses. The issue related to a change to the EPM900 configuration, but I was confused by the observation that the earlier version boards programmed fine while the new ones did not. It turned out that another team member had set Sector 7 to not be erased prior to programming, so the older boards didn't complain (because they already had the verified code in Sector 7) while the new ones did not.