>>>>> "Paul" == Paul Fertser <fercer...@gmail.com> writes:
Paul> BTW, stm32 discovery boards are rather cheap and powerful, and
Paul> also the stlink embedded on those can be easily reflashed to
Paul> BlackMagicProbe. And BlackMagicProbe has a passthrough mode for
Paul> raw jtag commands. It would be nice to have a driver in OpenOCD
Paul> for that.
Paul,
blackmagic raw_jtag is yet not in mainstream blackmagic. Find it at
https://github.com/UweBonnes/blackmagic as branch raw_jtag.
I offered raw_jtag to Gareth some time ago, but he was not convinced that
raw_jtag is the right way to go. Probably he thought it was to complicated
as raw_jtag commands are encapsulated into remote gdb protocoll commands.
Another option would be to set up another pair of endpoints. I thought about
writung an interpreter that would make these pair of endpoints behave like
the MPSSE mode of an FTDI device. However this could cause license/copyright
issues.
So I still think the raw_jtag modes is sensible.
raw_jtag does not offer a swd pass-through yet.
For anybody wanting to reflash a stlink, have a look at
http://embdev.net/articles/STM_Discovery_as_Black_Magic_Probe
When bootstrapping a F401-Disco, use the f4discovery_add_f401 branch at
https://github.com/UweBonnes/blackmagic. F401 Disco is slower and has less
RAM than the older F4-Discovery. F429 doesn't enter the system bootloader
due to internal devices connected to the line monitored in the system
bootloader.
Bye
--
Uwe Bonnes b...@elektron.ikp.physik.tu-darmstadt.de
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
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