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S32K JTAG/SWD Pull-Ups and Pull-Downs

Question asked by Damien Dusha on Jul 23, 2018
Latest reply on Jul 25, 2018 by Daniel Martynek

Dear All,

 

I am attempting to reconcile the differences in the pull-up/down configuration between the hardware design guide and the EVK.

 

In the Hardware Design Guide p5-6, pull-ups/downs are "required" as follows:

 

However, the S32K144EVB schematics contains a pull-up only on TMS, and can be isolated from the OpenSDA processor via jumpers.

 

 

 

 

 

How does one reconcile the design of the EVK with the recommendations in the HW design guide?

 

Kind regards,

Damien.

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