Dammit, I did it twice -- I was thinking STLink and said JLink.
I dunno about no JLink -- the only processor I had where I needed to get it working with OpenOCD was a real oddball (unsupported by anything but Keil tools), and while things failed I think it was the processor, not JLink.
I was conflating STLink and JLink in my head. Sorry. If one could delete USENET posts, I would do so.
I was going to correct you but thought there might be some higher-end ST dev board that used it or something.
I was informed that STLink works with other vendors parts (on the openocd list). Not tried it myself.
J-link is already processor-agnostic, it is not tied to a particular manufacturer.
There seems to be a new emerging standard CMSIS-DAP, I think it works a bit like ST-Link but is non-proprietary. That is, a microcontroller on the debug pod acts as a bridge between USB and SWI/JTAG, handling the low level details with lower latency than USB can manage.
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