18:45 <Greg40> Hey, so I'm using OpenOCD to connect to a Redbear Nano BLE v2 on Mac OS X Monterey, but it's just hanging with no feedback. Thinking it could be a lower level usb issue, any thoughts?  I'm using it as part of Platform.io, debug eve info here https://pastebin.com/1rx9dv3Y

18:54 <PaulFertser> Greg40: hey

18:56 <Greg40> hey

19:08 <Greg40> PaulFertser hey

19:15 <PaulFertser> Greg40: can you also try building with --HEAD please?

19:15 <PaulFertser> Greg40: and let's troubleshoot from there.

19:19 <PaulFertser> Greg40: it's rather odd it hangs there, I can't remember why it can be happening.

19:23 <Greg40> Yeah really odd, must be something lower level?  Here's the pastebin for HEAD, same output. https://pastebin.com/vC3TkppR

19:23 <PaulFertser> Greg40: what's your debug adapter? Old regular CMSIS-DAP or newer v2 with bulk endpoints?

19:24 <PaulFertser> Greg40: btw, you shouldn't need that -s command, openocd binary knows where its scripts are.

19:24 <Greg40> This setup: https://www.sparkfun.com/products/retired/14154

19:24 <PaulFertser> Greg40: and one should be using scripts that came along with the binary.

19:25 <Greg40> (that command is generated by platform.io)

19:25 <Krazubu> hi, it's working fine for me in monterey with CMSIS-DAP

19:26 <PaulFertser> Greg40: for troubleshooting please omit it and use plain upstream configs.

19:27 <Greg40> so just omit the -s flag and argument?

19:27 <PaulFertser> Greg40: yes

19:28 <Greg40> https://pastebin.com/CWp6iHT1

19:29 <PaulFertser> Greg40: can you try running openocd as root for this test please?

19:32 <PaulFertser> Krazubu: interesting datapoint, thanks.

19:33 <Greg40> running with sudo hangs at the same command

19:37 <PaulFertser> Greg40: with cmsis-dap it should be using hidapi library to talk to it.

19:39 <PaulFertser> Greg40: btw, is there something like strace for macOS?

19:39 <PaulFertser> Greg40: I wonder if it's an M1 mac or not.

19:41 <PaulFertser> Greg40: since you have everything handy there you might just try running openocd under gdb and C-c when it hangs to see the backtrace.

19:42 <Greg40> googling suggests dtruss may be equivalent to stroke, but not sure output from my naive run of it is sueful

19:42 <Greg40> Isn't an M1 Mac btw, is intel.

19:42 <Greg40> what command would I use to run under gdb?

19:42 <Greg40> thanks for the assistance btw

19:43 <Greg40> *strace, damn autocorrect

19:43 <PaulFertser> Greg40: gdb --args openocd -f interface/cmsis-dap.cfg -f target/nrf52.cfg

19:43 <PaulFertser> Then "r"

19:44 <mra90> PaulFertser, thanks, currently I am facing some issue with plain Lauterbach toolchain

19:44 <mra90> during startup script loading I get "debug port failure while reading from Reg:0x00..."

19:45 <PaulFertser> mra90: if you have a jtag adapter supported by OpenOCD you can give it a try.

19:45 <Greg40> aha, I recently updated to Monterey, is reporting no apple CLI tools, so no gdb... could be it?

19:46 <PaulFertser> Greg40: brew should have installed everything needed for openocd to work.

19:46 <PaulFertser> Greg40: probably you have old hidapi or need it recompiled? I do not know much about macOS tricks.

19:46 <Greg40> curious, it's not finding gdb in my path

19:47 <mra90> PaulFertser, ok but for now, do you have ssome experience with Lauterbach debugging?

19:47 <PaulFertser> mra90: I probably saw a config file for it once :)

19:47 <Greg40> wouldn't be the first time brew and OS X upgrades leave things in a broken state....will poke at that for a but. thanks.\

19:49 <mra90> ahh ok :)

19:49 <PaulFertser> mra90: what's your target device btw?

19:50 <mra90> ARC chip

19:51 <mra90> DesignWare ARC

19:51 <PaulFertser> OpenOCD actually has some support for ARC, directly from synopsys.

19:53 <PaulFertser> It might provide different results since it's likely a rather different code from the one in lauterbach.

19:54 <mra90> What do you mean by different results?

19:54 <mra90> The target device doesn't care who is talking to it

19:54 <mra90> at the end of the day its all about generating CPU debugging signals

19:57 <PaulFertser> mra90: but different code in OpenOCD might end up generating a different sequence of those debugging signals.

19:59 <Greg40> oh yay, gdb installs on brew get complicated by apple code signing / trust.. remember that pain:/  Maybe someone's just trying to tell me I should switch to Linux :)

20:07 <mra90> ok, make sense

20:09 <PaulFertser> Also, different code might be interpreting the results it's getting in another way and probably providing useful diagnostics.