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K66 High Speed Run Tracing

Question asked by Ryan Clemens on Feb 7, 2019
Latest reply on Feb 15, 2019 by Hui_Ma

I'm trying to use ETM trace with IAR and a J-Trace on a K66 in High Speed Run mode.  

 

Everything works great until the switch to High Speed Run Mode.  I've tried setting the SIM_SOPT2 register to set the TRACECLKSRC to 0 (This will use the MCGOUTCLK / TRACECLK divider) and setting the SIM_CLKDIV4 register to have TRACEDIV=2 and TRACEFRAC=1 for a trace clock output in HS RUN mode of 180 * (2/3) = 120, but I still am getting errors.

 

Are there any other tricks to switching the trace clock frequency mid debug on this processor?  Are there other registers I need to set?

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