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Setting I/O pin on Kinetis from debugger script

Question asked by SCOTT MILLER on Dec 27, 2016
Latest reply on Jan 2, 2017 by SCOTT MILLER

I've got a K22F-based board that needs to have a couple of GPIO pins initialized to appropriate values before startup - there's a transmitter connected that shouldn't be left running during the flash load process.  It looks like I ought to be able to do this with mem commands (or possibly reg commands) from the init_kinetis.tcl script, but I'm not having any luck getting it to work.

 

I'm able to set the SCGC5 register without an error, but any port control registers I try to access give me an error.  I'm guessing it's just a matter of setting up a missing clock setting or something, but it's late and I'm tired of trying to hunt it down.  Does anyone have a working example of a debugger script for the K22 that just sets an I/O pin?

 

Thanks,

 

Scott

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