This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

nrf52832 2 pin debugger

Hello, I'm making a PCB project with nrf52832 and I want to use my debuggers only 2 pins(SWDCLK and SWDIO) to debug it. I have J-Link Edu, but I wonder if I can use it with the new PCB only using SWD pins. Is it possible to connect it this way and not connect J-Links GND and Vcc? If it's not work with my debugger, could you please recommend me a new one?

Thank you

Parents Reply
  • Hi,

     

    All have the 4 mentioned pins or inputs, but I suppose the Vtref and GND_detect is mainly used to set level shifters in the debugger and detect that there is a target connected. It might work to connect the Vtref to another VDD source that has the same level, and short the GND_Detect pin to ground. You will probably need your devices to share ground for this to work.

     

    Best regards,

    Andreas

Children
No Data
Related