Another ICSP programming ?

I was going to try the pk3 debugger a few days ago but noticed that the tmr1 external input was on RB6/PGC so thought I could not since I was using that input. Now as I looked at several other data sheets for pics that I have on hand, that is the case with most of them. Makes a good case for choosing your pic carefully after deciding what the program will do. I've started using the 18 series and wish I never had to see another 16.

AGCB said:

I was going to try the pk3 debugger a few days ago but noticed that the tmr1 external input was on RB6/PGC so thought I could not since I was using that input.

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PGC is only used for programming the chip. Once it's programmed, you can use that pin as RB6/tmr1 interrupt. I don't even think you'd need to disconnect the PK3. As long as the PICkit isn't using PGC (programming), the external interrupt should work as normal.

DerStrom8 said:

As long as the PICkit isn't using PGC (programming), the external interrupt should work as normal.

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Something new to learn and play with! Thanks D8

DerStrom8 said:

PGC is only used for programming the chip. Once it's programmed, you can use that pin as RB6/tmr1 interrupt. I don't even think you'd need to disconnect the PK3. As long as the PICkit isn't using PGC (programming), the external interrupt should work as normal.

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ICD uses PGC and PGD.

3v0 said:

ICD uses PGC and PGD.

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That's true. If you're using the PICkit as a debugger you might have a few issues, but for normal operation it isn't a problem.

I just ordered a couple 18F24k20s. They have the PGC and PGD on pins that shouldn't be needed for anything else. I've been wanting a 28 pin 18 series anyway.