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August 29, 2015 14:06
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Looking for a nice way to have openocd upload via an existing instance if it exists, or run standalone if not
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| install: $(APP).elf | |
| # try to upload via a running openocd instance first, if that | |
| # fails then fail over to running openocd program | |
| ( echo "halt; flash write_image erase $(APP).elf; reset" | nc localhost 4444 ) || \ | |
| $(OPENOCD) --command "program $(APP).elf; reset" |
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For future reference, the answer is:
netcat-traditional on Debian has undesirable behaviour with this snippet (you have to Ctrl-C out of netcat manually if openocd is running, because EOF from the input pipe doesn't close the TCP connection and exit netcat.)
netcat-openbsd on Debian has desirable behaviour (EOF from the input pipe does close the connection and exit netcat.)
So run netcat-openbsd or similar and life is good...
(Thanks Nattgris on #openocd for providing the key "this works for me" clue.)