STM32H743 "horse pill" -- STLink V3

STLink V3 is quite different from the V2 I am used to. My V2 probes support the 4 wire SWD connector and I use OpenOCD with them. The STLink V3 provides two (maybe more?) USB devices, one is a serial console (VCP), which is a nice idea. I can use one cable both for a serial console and to download firmware with no fiddling required on my part.

According to this post, OpenOCD supports the V3 as of 2018-10-09.

• Overview of ST-Link derivatives (PDF, 13 pages)
• STLink-V3 debugger ($35)
• OpenOCD and STLink V3
• Compiling OpenOCD from Source
• OpenOCD users guide
• SourceForge (GIT) OpenOCD sources

ls -l stlink*
-rw-r--r-- 1 root root 156 Jan 22  2017 stlink-v1.cfg
-rw-r--r-- 1 root root 488 Jan 22  2017 stlink-v2-1.cfg
-rw-r--r-- 1 root root 484 Jan 22  2017 stlink-v2.cfg

Get the latest openocd files

git clone https://git.code.sf.net/p/openocd/code openocd-code

And this does contain the stlink.cfg file rather than the 3 separate files shown above.

So the problem is that the openocd maintainers are changing their source tree without bumping the version number. I have a source tree that claims to be 0.10.0 from back in January 2017 that does not have the stlink.cfg file for V3. Fedora apparently assumes (just as I would) that they have the current version and no changes are being made.

The question is whether I will need to do a full rebuild or simply download the rather simple unified stlink.cfg file.