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'[PIC]Programming failure with ICD2'
2006\02\07@204137 by Frank T. Dai

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I'm prototyping with a 18f452 on a solderless breadboard, but the ICD2
never recognizes the PIC chip("cannot validate target device").

ICD2 passes the self test, I'm providing power to all of the Gnd/Vdd
pins, and I've provided an external clock source of 4MHz through a
function generator.

Are there any gotchas you guys can think of? Any help is greatly appreciated.

--
Frank Dai
spam_OUTfrankdaiTakeThisOuTspamumail.ucsb.edu

2006\02\07@204943 by andrew kelley

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DT/CK must be connected too..

andrew

2006\02\07@213744 by Tom Sefranek

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You can not have ANY capacitors to ground on the MCLR, PGC, PGD pins.
Resistances greater than 10K are permitted.
You do NOT need a clock for programming, but it is necessary for debugging.


Frank T. Dai wrote:

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