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MPC5748G JTAG Connection Failure

Question asked by Steve Lyon on Nov 15, 2016
Latest reply on Nov 22, 2016 by Martin Kovar

Hi, I have a new custom MPC5748G board and am not able to connect to it with my PE Micro Multilink JTAG tool. It looks like TMS is going high to put the part into test mode but then the PEMICRO connection manager is reporting that it can't communicate with the target processor.

 

Here are some scope shots of the JTAG signals as labeled when I attempt to connect to the MPC. I verified POR is not being asserted at any point in the sequence.

 

Any suggestions on getting the MPC to connect to JTAG?

 

Thanks,

Steve

 

MPC5748G JTAG connectionMPC5748G JTAG connection

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