Trying to help a buddy out here. He has the latest version of MPLAB, an old
PICKit2, and he wants to develop some code in the 12F675. I told him he
really needs to be able to debug, and we looked up the docs for debugging
that chip with the PICKit2. As far as we can tell, you can do that with a
special header: The AC162050 which contains this special little version of
the chip: PIC12F675-ICD. To connect the AC162050 to the PICKit2, you must
have an ICSP to RJ-11 adapter, the AC164110. So we ordered both those parts
from Digikey and they arrived. We hook up the PICKit2, update the firmware,
connect the RJ11 adapter, and the AC162050. MPLAB sees the device, sees the
chip (once we got the RJ11 adapter on right way round) and we can program
code into it...

But we can't debug. It says:

PK2Error0028:  Unable to enter debug mode
NOTE: This device requires an ICD Header for debug.  See "Header
Specification" DS51292.
PICkit 2 Ready

http://ww1.microchip.com/downloads/en/DeviceDoc/51292S.pdf is exactly where
we found the info on which ICD header to purchase. And sure enough, it says
for the PIC12F675, you need an AC162050, which we have right here in front
of us, plugged into the PICKit2...

???

The jumper is in the right place (pins 1 and 2 are shorted) and we can
program the chip... and it verifies...=20

and won't debug...

help?

--
James Newton
1-970-462-7764=20


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