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MKM34Z256VLL7 SWD interface

Question asked by Sam Dexter on Oct 6, 2016
Latest reply on Oct 6, 2016 by Sam Dexter

Hi guys,

 

I've just finished a design of a board using MKM34Z256VLL7 and regretfully cannot program/debug it.

The SWD interface seems simple enough - all that it requires is Vtarget, GND, SWDIO and SWCLK.

However, I am not sure if it makes a use of RESET pin. Another thing is that the analog section on my

design is powered down.

 

So, I've got 2 questions:

1. Does SWD require RESET pin connected?

2. Does the micro have to be fully powered up, including the analog section in order to be programmed?

 

I presume it starts up with an internal oscillator (from the data sheet).

If anyone has any ideas please share...

 

Thank you very much.

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