#openocd on 2023-08-31 — irc logs at libera.irclog.whitequark.org

2021-05-27 14:41 NishanthMenon changed the topic of #openocd to: this is the place to discuss all things OpenOCD | Logs: https://libera.irclog.whitequark.org/openocd/

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20:19 <pi0> greetings PaulFertser, when you have an oppertunity if you can clarify something for me, I am looking at this item, https://www.adafruit.com/product/5405

20:20 <pi0> based off the website, i can use openocd via usb, without an additional jtag hardware

20:20 <pi0> seems to be builtin already, correct?

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20:21 <PaulFertser> pi0: which part of the description is suggesting that?

20:21 <pi0> this part "USB Serial/JTAG controller"

20:21 <pi0> plus i found this https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/api-guides/jtag-debugging/configure-builtin-jtag.html

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20:22 <pi0> but the pin layout is different

20:23 <pi0> however i would like to know if can openocd gdb debug via usb only without aditional hardware

20:23 <pi0> i believe i should be able to, if i am not mistaken

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20:23 <pi0> perhaps i need to find a adafruit .cfg file for this microcontroller

20:24 <PaulFertser> pi0: interesting, but probably support for this USB OCD peripheral is not upstream and just present in some fork.

20:25 <pi0> ah i see, does seem like a nice idea to have it builtin

20:30 <PaulFertser> pi0: https://github.com/espressif/openocd-esp32/blob/master/tcl/board/esp32c3-builtin.cfg

20:31 <pi0> i think i would still need one of these right, https://www.adafruit.com/product/4448

20:31 <PaulFertser> pi0: https://github.com/espressif/openocd-esp32/blob/master/tcl/interface/esp_usb_jtag.cfg

20:32 <PaulFertser> pi0: https://github.com/espressif/openocd-esp32/blob/master/src/jtag/drivers/esp_usb_jtag.c

20:33 <PaulFertser> pi0: doesn't look like you need that usb cable, no, why?

20:36 <pi0> ah nice, so just esp_usb_jtag.cfg would be enough

20:36 <pi0> along with a regular usb c cable

20:36 <PaulFertser> pi0: no, you'd need to run tha espressif openocd fork.

20:36 <PaulFertser> Config alone is not enough

20:39 <pi0> ah understood, i need to compile this version from source, https://github.com/espressif/openocd-esp32

20:39 <PaulFertser> pi0: I checked, it's actually upstream already.

20:40 <PaulFertser> So you can just use v0.12.0 from your distro

20:40 <PaulFertser> Kudos to Erhan!

20:50 <pi0> oh no, i only have openocd/jammy 0.11.0-1 amd64

20:51 <pi0> src/jtag/drivers/libusb_helper.h:12:10: fatal error: libusb.h: No such file or directory

20:51 <pi0> 12 | #include <libusb.h>

20:51 <pi0> | ^~~~~~~~~~

20:51 <pi0> even after i installed sudo apt install libgusb-dev libusb-dev libusb-1.0-0-dev

20:51 <pi0> running ubuntu 22.04

20:53 <PaulFertser> pi0: you need to run ./configure after installing that.

20:53 <pi0> exactly, i just did that, perfect.... its cooking lets see if it finishes

20:56 <pi0> perfect it compiled now, just to confirm, out of the two config files you provided, the one i need is only esp_usb_jtag.cfg

20:56 <PaulFertser> pi0: the first inscrudes the second. You need to source board config.

20:59 <pi0> perfect, brb going to read on how to get this to work

20:59 <pi0> or were to save my cfg files for openocd

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