My PicStart has started giving me random "can't receive" and "can't
transmit" errors when I try to program 16C745s.=20

About a year ago, I replaced the electrolytic cap in the wall wart and
that had cleared up a similar problem that I was having then. This
time I went straight to a bench supply to power the darned thing. No
help. I've set the PicStart's power in at 9 volts and it's pulling
something around 100 millamps. (I haven't measured the current all
that accurately but it looks reasonable on the bench suppy's current
meter.)

I have tried running it with the comm port FIFO buffering both on and
off. Neither way seems to affect the symptoms.

I tried going back to a previous version of MPLAB but that didn't help
either. (I'm currently using the 5.50 version.)

Anyone have any ideas of what else I can try to resolve this?


Thanks, Bob

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