VS Arduino - Debug ESP32 using SEGGER j-link

Nov 2^nd, 2024 at 9:36pm (UTC)

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VS Arduino › Visual Micro › Hardware Debugging (GDB, GDB WiFi, GDB Stub) › Debug ESP32 using SEGGER j-link

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Debug ESP32 using SEGGER j-link (Read 3408 times)

1simone0 Newbies Offline Posts: 3 Joined: Mar 31^st, 2021	Debug ESP32 using SEGGER j-link May 24^th, 2021 at 6:49pm	Print Post
	Hi, I'm trying to HW debug my ESP32 using a SEGGER j-link but without lucky. board: ESP32 DEV Module Debugger: SEGGER j-link Base Thi is what I did: I downloaded Zadig and installed WinUSB (v6.1.7600.16385) driver instead the original SEGGER driver Settings: Debug: Hardware Selected SEGGER j-link as debugger Tried both "no optimizazion" and "no project optimizazion" After that I build the solution and upload correctly via Serial Debug-Attach to process and I get the attached error Also tried to upload the code using the programmer: Selected Segger j-linnk as programmer and enabled Programmer. When I try to upload the code I get this in the Micro Build Output: Uploading 'prova_debug' to 'WiFi module' using 'Segger J-Link' Open On-Chip Debugger v0.10.0-esp32-20190313 (2019-03-13-09:57) Licensed under GNU GPL v2 For bug reports, read http://openocd.org/doc/doxygen/bugs.html debug_level: 0 adapter speed: 2000 kHz esp32 interrupt mask on **[vMicro]** Uploading App :Error: JTAG scan chain interrogation failed: all ones Error: Check JTAG interface, timings, target power, etc. Error: Trying to use configured scan chain anyway... Error: esp32.cpu0: IR capture error; saw 0x1f not 0x01 Error: JTAG scan chain interrogation failed: all ones Error: Check JTAG interface, timings, target power, etc. Error: Trying to use configured scan chain anyway... Error: esp32.cpu0: IR capture error; saw 0x1f not 0x01 Error during upload using programmer The uploader process failed The uploader process failed The uploader returned an error Any suggestion? I also saw a guide on youtube "Advanced GDB Configuration Using JLink Drivers and Software" ehre theymake it work with the original Driver but it seems to be more complex. Could it solve my problem? What's the difference between standard VM procedure and this "advanced" procedure?


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Simon@Visual Micro Administrator Offline Posts: 2425 Joined: Feb 13^th, 2019	Re: Debug ESP32 using SEGGER j-link Reply #1 - May 24^th, 2021 at 8:26pm	Print Post
	Thanks for the report. The error is most often related to a wiring issue, as the driver error should occur before this if shown. Can you confirm from a hardware perspective: 1) You have all connections made to the J-Link? https://www.visualmicro.com/pics/Debug-Help-ESP32-Jlink-Connections.png 2) The ESP board is powered from the USB? 3) The GND lines connected between ESP32 and J-Link? The J-Link Software will verify the Debugger is connected, but I don't believe it understands the ESP32 so cannot validate this setup any further. There are further steps we can take to look into this further, but checking all wiring and power is often the best first step in this scenario.


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1simone0 Newbies Offline Posts: 3 Joined: Mar 31^st, 2021	Re: Debug ESP32 using SEGGER j-link Reply #2 - May 24^th, 2021 at 11:25pm	Print Post
	Hi Simon, thank you for the fast reply. 1) YES, All connection double checked, I also replaced all the cables. 2) YES, ESP32 is powered from USB 3) YES, GND lines are connected


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Simon@Visual Micro Administrator Offline Posts: 2425 Joined: Feb 13^th, 2019	Re: Debug ESP32 using SEGGER j-link Reply #3 - May 25^th, 2021 at 8:43am	Print Post
	Thanks for the update. Can you confirm which JLink Probe you have? (The JLink Probes are often Isolated, so the VCC from 3V3 on the ESP32 will also need connecting to the 3V3 on the JLink) Also ensure you aren't using any of the GPIO Pins in your sketch used for debugging (12,13,14,15). Would it be possible to attach the full build log with the Verbose and Show Build Properties enabled (as shown at the top of this page), just so we understand the environment fully. If you can also attach the Log in the Build Folder <<SketchName>>.ino_DebugOpenOCD.log, which may reveal further information about the connection failure as well.
	« Last Edit: May 25^th, 2021 at 10:09am by Simon@Visual Micro »

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