Trouble using a P&E BDM interface on a 9S12DXC32

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Trouble using a P&E BDM interface on a 9S12DXC32

Postby jsteele » Fri Dec 22, 2006 8:10 pm


I have been using a P&E Micro Multilink Rev B BDM interface to a Nanocore 9S12DXC32 (from Tech Arts) for about four days. Suddenly today, I got a message saying "Communication to the target failed (target MCU has no clock or wrong BDM clock speed is used or derivative is secured!)".

I happen to have another DX available so I plugged the BDM into that board and the P&E indicated that it was in communication with the DX, so I don't believe it's the BDM interface.

Has anyone had any experience with this problem? Anyone have thought on what might have caused it? Is there anyway to troubleshoot this situation?

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Postby erarama » Fri Dec 22, 2006 11:05 pm

Typical symptom to this problem of yours
1. Secured MCU accidentally or deliberate. You need to download the unsecure utility from P&E

2. Power problem. I am sure you checked that.
3. MCU is static zapped.
4. Is the module plug into your circuit? If so check the module without your circuit.

I suspect it might be static zapped, winter being the worst for this static zapping problem.
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