OpenOCD + Segger JLink + ESP32

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  • March 16, 2017 at 11:53 #10682
    kfeksa@gmail.com
    Participant

    Hi,

    I want to use new Segger JLink with VisualGDB to debug ESP32. The drivers were installed, I can see the device in Device manager. VisualGDB even installed the WinUSB driver for the JLink, but I keep geting this output:

     

    C:\SysGCC\esp32\esp32-bsp\OpenOCD\bin\openocd.exe -f interface/jlink.cfg -f target/esp32.cfg -c “adapter_khz 1000”
    Open On-Chip Debugger 0.9.0 (2016-11-21)
    Licensed under GNU GPL v2
    For bug reports, read
    http://openocd.org/doc/doxygen/bugs.html
    Info : auto-selecting first available session transport “jtag”. To override use ‘transport select <transport>’.
    adapter speed: 1000 kHz
    Info : No device selected, using first device.
    Info : J-Link ARM V8 compiled Nov 28 2014 13:44:46
    Info : Hardware version: 8.00
    Info : VTarget = 0.000 V
    jaylink: JTAG I/O operation failed: 05.
    Error: jaylink_jtag_io() failed: JAYLINK_ERR_DEV.
    Info : clock speed 1000 kHz
    jaylink: JTAG I/O operation failed: 05.
    Error: jaylink_jtag_io() failed: JAYLINK_ERR_DEV.
    jaylink: JTAG I/O operation failed: 05.
    Error: jaylink_jtag_io() failed: JAYLINK_ERR_DEV.
    embedded:startup.tcl:21: Error:
    in procedure ‘init’
    in procedure ‘ocd_bouncer’
    in procedure ‘jtag_init’ called at file “E:\projects\sysprogs-github\openocd-esp32\src\jtag\core.c”, line 1585
    in procedure ‘init_reset’ called at file “embedded:startup.tcl”, line 74
    in procedure ‘jtag’ called at file “embedded:startup.tcl”, line 91
    in procedure ‘ocd_bouncer’
    at file “embedded:startup.tcl”, line 21
    embedded:startup.tcl:21: Error:
    in procedure ‘jtag_init’ called at file “E:\projects\sysprogs-github\openocd-esp32\src\jtag\core.c”, line 1585
    in procedure ‘init_reset’ called at file “embedded:startup.tcl”, line 74
    in procedure ‘jtag’ called at file “embedded:startup.tcl”, line 91
    in procedure ‘ocd_bouncer’
    at file “embedded:startup.tcl”, line 21

     

    I use the latest version of SW, and tried multiple times to delete the OpenOCD and JLink packages, but it won’t run.. any help appreciated here

    March 16, 2017 at 19:21 #10686
    support
    Keymaster

    Hi,

    JAYLINK_ERR_DEV might indicate a driver issue. Are you able to use J-Link with OpenOCD (not Segger gdb stub) to debug normal ARM devices? If yes, it could be wiring problem instead.

    March 18, 2017 at 00:45 #10704
    gojimmypi
    Participant

    If not a wiring problem – I wonder if perhaps the problem may be old firmware on the J-Link. See the line:

    Info : J-Link ARM V8 compiled Nov 28 2014

    When I first installed my J-Link, I ran the Segger STM32 ST-Link Utility and it wanted to update my firmware before even trying to use it. Here’s the result of my selftest:

    C:\SysGCC\esp32\esp32-bsp\OpenOCD\bin\openocd.exe -f interface/jlink.cfg -f target/esp32.cfg -c “adapter_khz 3000”
    Open On-Chip Debugger 0.9.0 (2016-11-21)
    Licensed under GNU GPL v2
    For bug reports, read
    http://openocd.org/doc/doxygen/bugs.html
    Info : auto-selecting first available session transport “jtag”. To override use ‘transport select <transport>’.
    adapter speed: 3000 kHz
    Info : No device selected, using first device.
    Info : J-Link V10 compiled Jan  9 2017 17:48:51
    Info : Hardware version: 10.10
    Info : VTarget = 3.348 V
    Info : clock speed 3000 kHz
    Info : JTAG tap: esp32.cpu0 tap/device found: 0x120034e5 (mfg: 0x272 (Tensilica), part: 0x2003, ver: 0x1)
    Info : JTAG tap: esp32.cpu1 tap/device found: 0x120034e5 (mfg: 0x272 (Tensilica), part: 0x2003, ver: 0x1)
    Info : esp32.cpu0: Target halted, pc=0x400D4492
    Error: The ‘mww’ command must be used after ‘init’.
    in procedure ‘init’
    in procedure ‘ocd_bouncer’
    in procedure ‘flash’
    in procedure ‘ocd_bouncer’

    Info : esp32.cpu1: Target halted, pc=0x400D0BB0
    Info : accepting ‘telnet’ connection on tcp/4444
    shutdown command invoked
    Info : dropped ‘telnet’ connection

    btw – coincidentally I’ve been working on the ESP32 today. It is shockingly easier to JTAG than the ESP8266.  I created my own pinout diagram and posted all my notes (including ESP32 hookup) here:

    http://gojimmypi.blogspot.com/2017/03/jtag-debugging-for-esp32.html

    Let’s see if this tweet shows up as a hookup pic:

    https://twitter.com/gojimmypi/status/842882252866441216

    Hope this helps…

     

    March 18, 2017 at 02:24 #10705
    gojimmypi
    Participant

    oops, not the STM32 ST-Link Utility (that’s of course for the ST-Link/V2 debugger).  The tool I meant to say is the Segger J-Link Configuration tool for updating firmware on the J-Link

    (this pesky forum – sometimes I can edit prior posts and sometimes not)

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