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J-link USB-SWD programmer questions

Question asked by jpetras on Oct 14, 2015
Latest reply on Jan 12, 2018 by jtoul

Hi all,

 

Two quick questions:

 

1. Is the J-link USB-swd programmer schematic available? I cannot seem to find it.

 

2. Can you please provide some details on the 5V and 3.3V pins on the programmer connector? Usually the 3.3V (target) is just to set the interface buffer output level. However the eval board can be powered by this. I don't want to do this since my board has its own 3.3V. What is the correct way for interfacing the programmer to a board with it's own 3.3V source?

 

Thanks!

Jason

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