1
\$\begingroup\$

I have a ST Link V2 as pictured below. I would like to use it as a general purpose JTAG and or Serial TTL USB interface for communicating with a wide variety of devices. The documentation claims it supports SWM, which appears to be JTAG, but it's unclear if it is a vendor specific version of the standard.

Since the ST Link V2 has built-in firmware to function, I'm assuming its not just a dumb interface and may require additional steps to make it work. Can this be used for my purpose or should I just get a general purpose JTAG cable? If so, what's entailed?

ST-LINK V2

\$\endgroup\$
  • \$\begingroup\$ PJ answered probably, but yes you can use it with non-ST arm microcontrollers. It is more of an openocd support for that other microcontroller thing. Have had success with some and problems with others. \$\endgroup\$ – old_timer Sep 24 at 21:32
  • \$\begingroup\$ I prefer a generic ftdi breakout board like the adafruit FT232H one, you can do SWD and UART. (or JTAG and UART for full sized things like the raspberry pi). \$\endgroup\$ – old_timer Sep 24 at 21:33
  • \$\begingroup\$ I managed to use an arduino as a UART and it works well. It requires taking over the UART from the MCU. The mega has several UART ports to play with. I would investigate using it for JTAG, but I figured I already have the ST-LINK. \$\endgroup\$ – user148298 Oct 1 at 3:21
0
\$\begingroup\$

First of all it is not an JTAG probe. It is the ARM SWD debugger probe. Probably you can use it with non STM32 ARM microcontrollers using openOCD. .

This probe does not have UART <> USB converter you of course can't use it. You need ST-LINK V2/1

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.