Olimex Support Forum

Microcontrollers => PIC => Topic started by: olewolf on February 23, 2013, 02:43:50 pm

Title: PIC-kit3 not working?
Post by: olewolf on February 23, 2013, 02:43:50 pm
I just purchased a PIC-KIT3 from Olimex, and I'm beginning to think that maybe it isn't working. In each attempt, MPLAB v. 8.89 on Windows XP, MPLAB X on Windows 7, and MPLAB X on Linux report that there's no target. Here's what I've attempted:

In all cases, MPLAB downloads new firmware to the PIC-KIT3 as appropriate but always ends complaining that the target isn't connected, and anything that is read from the target is all-zeroes (including the PIC ID and anything else supposed to be in memory).

When I measured the voltage supplied by the PIC-KIT3 (when in that mode), I noticed that the voltage was only 3.1 V (for the 5 V PIC18F2550) whereas the MPLAB status window indicated that the PIC-KIT3 claimed the supply voltage to be 4.88 V. This makes me suspect that the PIC-KIT3 may be broken.

Unfortunately I don't have access to other PIC programmers. Any suggestions what I might do to ascertain that the PIC-KIT3 is indeed malfunctioning?
Title: Re: PIC-kit3 not working?
Post by: olimex on February 23, 2013, 05:58:52 pm
please check if you really connect correctly ICSP connector the arrow points pin.6 not pin.1
Title: Re: PIC-kit3 not working?
Post by: olewolf on February 23, 2013, 07:38:00 pm
Quote from: olimex on February 23, 2013, 05:58:52 pm
please check if you really connect correctly ICSP connector the arrow points pin.6 not pin.1

You're right, I certainly didn't expect that. I had actually checked against an image of the PIC-KIT3 pinout, but somehow I must have missed that. Thanks!

(That's evil, though. It reminds me of the time I purchased a dongle somewhere that I had to hack and learned that they had connected the red wire to ground and the black wire to VDD.)