CCS ICDU64 and MPLAB ?

soonc · Joined: 03 Dec 2013 Posts: 215

The saga moves on.

I'm trying to get PIC24FJ128GA306 to do oscillator switching in debug mode.

I got the MicroChip ICD-3 as I'm told it can (may) switch oscillators while in debug mode.

I installed MPLAB 8.92 (recommended rather than MPLAB-X) and setup the CCS plug in.

I have loaded my project, compiled, but then MPLAB complains

Target Detected
ICD3Err0086: Target Device ID (fff80000) does not match
expected Device ID (46c20000). If you experience persistent
problems communicating, the ICD 3 test interface can be
used to help diagnose the problem.

Prior to using the ICD-3 I was using the ICDU-64 successfully doing a lot of debugging (until this clock switching issue popped up) and as the ICD-3 and ICDU-64 use the same RJ pin out, so I expected the debugger to run the code.

Just to test my setup I loaded my project in PCWHD and can still run the code with the ICDU-64 so I'm convinced the wiring is good.

Power is clean and in MPLAB Menu/Debugger/Settings/Status the Voltages are:-

ICD 3 VPP 3.25
ICD 3 VDD 3.45
Target VDD 3.29

Any tips as to what I'm doing wrong would be appreciated.

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Your title is misleading. Your post is about ICD3 and MPLAB.

Check the ICD3 poster.
http://ww1.microchip.com/downloads/en/DeviceDoc/DS-51765C.pdf
Make sure you do everything it says to do, and not to do.
- MCLR resistor between 4.7K and 10K. (10K is the usual value).
- AVdd and AVss pins connected to power and ground on the PIC.
- No components connected to the PGC and PGD pins on the PIC.
- First test it with MPLAB set to Release mode. Then try it in Debug mode.
- Check all connections with an ohmmeter.
- Test the ICD3 with the included self-test header.
- Use as short a cable as possible between the ICD3 and the PIC.

If that doesn't work, enter a trouble ticket on the Microchip forum.

soonc · Joined: 03 Dec 2013 Posts: 215