The dreaded "No Device Detected" error

[Byte_Butcher]

Well... I just loaded up a "new" (untested design) board with a 16F684 and assorted goodies. When I went to program it, I got the dreaded "No Device Detected" error... :(
Yes, I DO have 16F684 selected in MCS.
I've checked very carefully and all PIC pins are soldered to the board and there's no pins shorted together.

I ran the troubleshooting routine from PICkit2, and all seems good. I've got 5 volts on VDD, 0 volts on Vss, 12 volts on Vpp (Mclr), and I get nice clean 30Khz test waveform on ICSPDAT and ICSPCLK.
According to the test routine, everything looks O.K. :confused:

Is there anything else I should check before I replace the PIC?
I rather dislike unsoldering and replacing TSSOP parts... :eek:


Thanks!


steve

[Byte_Butcher]

I heated the little devil up with the air gun and plucked it off the board with tweezers... and pin 13 (ISCPDAT) stayed on the board! :mad:

Somehow pin 13 was physically broken and detached from the body of the chip. Not sure how THAT happens. ???

Anyway, I soldered a new one on and it works now.


steve