ChipWhisperer Lite with Debugger

Hi all,
I have a ChipWhisperer Lite Arm 32 board and i want to use ST-LINK/V2 debugger with it. However, I am not sure which pins of the STM32F are the JTAG interface. I did see there are 4 pins called DEBUG UART on the main board, but are they applicable to ST-LINK/V2?

Thanks for your replies!


The JTAG interface is on the measure/glitch port side of the target board, on the right side of the image on this page:


Screen Shot 2021-12-09 at 5.16.40 PM

Yup, that’s correct. Here’s how those signals correspond to the 20-pin JTAG connector:

Thank you,
so basically, I can choose pins to connect depends on what features I want to use. Correct?

Hi Alex,

In my case, I have the kit start level 2.

I managed to glitch on the third party board using [third_party_connect] ( link. But now, I would like to debug/program with an STLink application.

On my third party board, there’s no JTAG/SWD connector except an usb connector (which replace the JTAG/SWD connector used on previous version of the board).

I was wondering how I can include STLink application in my setup. Is it possible to use the 20-pin connector on the CW308 UFO board to achieve my need ?

(which so implies for me to disconnect my third party board from CW-Lite, then connect CW-Lite to CW308 UFO and finally connect my third party board to CW308 UFO). Do yo think it’s possible ?

Thank by advance !

No, all of the labelled pins (TCK, TDO, TDI, and TMS) are required for JTAG to work. TRST is optional.

You’re probably going to need to solder wires directly onto to the JTAG pins on the chip, unless you can already debug via the USB port.