Compiler (PBP v2.50C) errors

[mpgmike]

To droptail; you reloaded your older version of PBP onto a newer PC. What version of MPLAB(X) are you using? If you just went to the Microchip site and downloaded the latest, you have MPLABX version 5.50. For PBP you need version 5.35 or older. This will certainly flub things up.

To Peter; the fact that something simultaneously happened on 2 computers at 2 different locations is quite coincidental. If you have a new batch of PICs, that could explain the coincidence. If you had previously programmed one or more from that batch, then I suspect a Windows update may be the culprit.

[Ioannis]

With the 819's I had bad times and I could never find what really was the cause of the problems. Some time it was the bad connection of the probe, other the software (a reboot correct it..!) but never on other chips such strange behavior happend.

Recently, although on some of my pcbs there are still used these oldies, I do not face such problems. Gear the same. Go figure...

Ioannis

[mpgmike]

I'm working on a project that just requires a 40 pin PIC; nothing fancy, any 40 pin will do. I have an old batch of PIC18F26K22's from a project years ago; brand new, bought from Digi-Key, still in the shipping tube. I found the pins couldn't deliver clean digital outputs; a LOW still had almost a volt, while a HIGH was barely over 4 volts (at 5 volts VDD). Switched to a K40 and everything switched clean. Maybe older stock somehow has issues, and with the electronics shortages, I've been told sellers are dusting off older Revision parts and selling them. The possibilities are endless, all things considered.

[Ioannis]

That is really strange. Because the chips are C-MOS, static can do damage if not handled right.

Do all the chips in the tube have the same behavior?

Ioannis

[CuriousOne]

I had exactly same issue with voltages and found out that reason was ADCON not configured properly

[mpgmike]

Ioannis: Don't know, switched to the K40 and didn't bother sorting through them.

CuriousOne: I make it a habbit to spell out ALL Registers for PORTs, ADC, and any other peripheral I use. Between the ANSEL, TRIS, and ADCON Registers, I don't think I missed anything applicable to Analog. Furthermore, it was ALL the I/O pins (and I am using most of the pins for Digital).