HI justinmreina, You are clearly almost there. I am not sure about wiring: 1. I would not connect 3.3V between ESP32 and Segger J-Link. ESP32 should be powered through own USB 2. From the pictures you posted it looks like one of lines is connected to GPIO27 while GPIO12 is not connected Please see b...

Hi linuxpaul, Thanks a lot for the tip that the "pkg-config" is the single "troublemaker"! In fact I was looking for a workflow to compile OpenOCD for Windows. Here is what I have just successfully tested for MSYS2 / Windows 7: Building OpenOCD from sources on Windows platform ======================...

I am happy to see you are progressing! Configuration files have changed with latest release of OpenOCD and "jtag_debugging_for_esp32_en.pdf v1.0" is not updated to reflect these changes. Regarding the error log, it looks like communication speed or wiring problem: Info : Reduced speed from 20000 kHz...

This is great news
Thank you for update!

Hi again,

Are you using default (provided with https://github.com/espressif/openocd-esp32 repository) or modified configuration file(s)?
What is your board and JTAG interface?

Have you tried to call OpenOCD as discussed in https://esp32.com/viewtopic.php?f=13&t=2525#p11896 ?

Hi justinmreina, I do not see the command you have used to call OpenOCD. It should look as follows: $ src/openocd -s tcl -f interface/ftdi/esp32_devkitj_v1.cfg -f board/esp-wroom-32.cfg You may need to adjust configuration files after "-f" to match your specifc h/w. If done correctly you should see:...

Hello @linuxpaul, I run into the same issue with MSYS2. After installation of additional packages I was able to successfully compile OpenOCD, but then had to redo broken toolchain setup for Windows. I got suggestion to use Cygwin to build OpenOCD instead but did not try it yet. Build with Linux on t...

I coppied esp32.cfg to my openocd directory

This part is fine.
My concern was that I did not see "interface" and "board" configuration files invoked.

pulled openocd from espressif, did a build, hooked up my olimex ARM-USB-OCD-H. Reflashed my LoPy, started OpenOCD. The program halts on scheduler. I started monitor, but it keeps resetting O_o I'm probably doing smthn wrong but idk what =P @f.h-f.s., Sorry for missing your post. I am not sure about...

Compiling the same sources under debian9 works very fine. Indeed compilation with Linux work very fine (and quick) make CFLAGS='-Wno-error=implicit-fallthrough' Expanding on answer by @f.h-f.s., the issue report https://github.com/espressif/openocd-esp32/issues/13 provides a recepie how to handle "...