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Cannot connect to new board with K10

Question asked by Keith Lueck on Feb 17, 2016
Latest reply on Feb 19, 2016 by Keith Lueck

I'm using a PE Micro Multilink (rev. a) and Codwarrior 10.6 to connect to a new design using the K10DX256VLK7.  I've used this processor (and the same Multilink) in at least 5 other designs, but I cannot get the debugger to connect to this new one.  I have four prototype boards that all act the same.  I can't see any difference in the JTAG interface on this new design vs. the others I've done.  Also, I've verified that I can use this specific Multilink to connect to older designs.  The only difference I can see is that the older designs have mask set 2N36B and the new one has a 3N36B.  I don't see any new JTAG issues in the errata sheet for 3N36B, but I'm at a loss.  I've tried different (slower) shift clock speeds and longer reset delays in the PE connect dialog box, but that doesn't make any difference.  I'm able to observe valid-looking signals on TMS, TCLK, TDI, and TDO.  Any ideas on how to troubleshoot this problem?  Thanks.