Harold,

I remember of an erratum for devices of this era that says that RB4 must be
kept low or the programming and debugging fails.

I already faced that problem.

Probably it doesn't apply to your device.

Cheers,
Isaac

Em seg, 19 de ago de 2019 18:55, Harold Hallikainen <
harold@mai.hallikainen.org> escreveu:

> I'm working on an update for some old code for a PIC16F506. I have an
> AC162070 header connected to a PIC Kit 3 through a Microchip SIP to RJ
> connector board and an RJ cable. To ensure my target is not messing it up=
,
> I've told the PIC Kit 3 to supply power to the host and do not have the
> header board plugged into the header. I can see 5V on pin 18 of the ICD
> device. It SEEMS like I should be able to just program the device like
> this. But, I'm getting the following error when I try to program it:
>
> Programming...
> The following memory regions failed to program correctly:
> Program Memory
> Address: 00000000 Expected Value: 000004a3 Received Value: 00000000
> Programming failed
>
> At debugger start, I also get this:
>
> PICkit 3 Connected.
> The target has invalid calibration data (0).
>
> Ideas?
>
> THANKS!
>
> Harold
>
>
>
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