Set up JTAG debugging for JC3248W535 board

[mamsterla]

Current Situation

I am successfully using this project to build and load the JC3248W535. I am looking into being able to debug the code and wondered if there is documentation on using a JTAG interface and the esp-builtin protocol. I am not sure if you use an external interface or not - looks like you need an additional connection other than the USB connected to the board for loading. I

Logs

Reading symbols from c:\Users\mamst\projects\JC3248W535EN\.pio\build\LVGL-320-480\firmware.elf...
Warning: 'set target-async', an alias for the command 'set mi-async', is deprecated.
Use 'set mi-async'.
PlatformIO Unified Debugger -> https://bit.ly/pio-debug
PlatformIO: debug_tool = esp-builtin
PlatformIO: Initializing remote target...
Warning: 'flushregs', an alias for the command 'maintenance flush register-cache', is deprecated.
Use 'maintenance flush register-cache'.
Open On-Chip Debugger  v0.11.0-esp32-20220706 (2022-07-06-15:48)
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
Info : esp_usb_jtag: VID set to 0x303a and PID to 0x1001
Info : esp_usb_jtag: capabilities descriptor set to 0x2000
adapter speed: 40000 kHz

Warn : Transport "jtag" was already selected
adapter speed: 115200 kHz

Info : tcl server disabled
Info : telnet server disabled
Info : esp_usb_jtag: serial (E8:06:90:9B:14:48)
Info : esp_usb_jtag: Device found. Base speed 40000KHz, div range 1 to 255
Info : clock speed 40000 kHz
Error: libusb_bulk_write error: LIBUSB_ERROR_NOT_FOUND
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: esp_usb_jtag: device not found!
Error: esp_usb_jtag: failed to revive USB device!
Error: libusb_bulk_write error: LIBUSB_ERROR_NOT_FOUND
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: esp_usb_jtag: device not found!
Error: esp_usb_jtag: failed to revive USB device!
Error: libusb_bulk_write error: LIBUSB_ERROR_NOT_FOUND
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: esp_usb_jtag: device not found!
Error: esp_usb_jtag: failed to revive USB device!
Error: libusb_bulk_write error: LIBUSB_ERROR_NOT_FOUND
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: esp_usb_jtag: device not found!
Error: esp_usb_jtag: failed to revive USB device!
Error: missing data from bitq interface
Error: Trying to use configured scan chain anyway...
Error: libusb_bulk_write error: LIBUSB_ERROR_NOT_FOUND
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: libusb_open() failed with LIBUSB_ERROR_ACCESS

Configuration

[env:LVGL-320-480]
platform = ${com.platform}
board = 320x480
monitor_filters = ${com.monitor_filters}
framework = ${com.framework}
build_type = ${com.build_type}
board_build.filesystem = ${com.board_build.filesystem}
lib_deps = 
build_flags = 
	${com.build_flags}
	-D LV_CONF_PATH="${PROJECT_DIR}/src/lv_conf.h"
upload_protocol= esp-builtin
debug_tool = esp-builtin
debug_init_break = break setup
monitor_speed = 115200
upload_speed = 115200
debug_speed = 115200

Environment

• OS: Windows 10
• Software: PlatformIO IDO
• Node:
• npm:

Process Supervisor

hb-service

Additional Context

No response

[aalm]

Some options listed here(yes, it does need external jtag probe for debugging):
https://docs.platformio.org/en/latest/plus/debugging.html

One example of the necessary connection:
https://docs.platformio.org/en/latest/tutorials/espressif32/espidf_debugging_unit_testing_analysis.html#setting-up-the-hardware

[mamsterla]

Thanks for the reply. I am a little bit of a Newb, so what Jtag probe do you recommend and looking at the pin outs in the docs I have it does not look like all the pins are available - if you can point me to the cabling and the right JTAG, I can probably take it from there. Thanks again for responding.

[sthaugen]

@mamsterla , hi, you must force the driver to LibUSB.

https://visualgdb.com/UsbDriverTool/

Then it will run/debug with your settings :-)