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  • Case ID: 105353
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nrf51 DK JLink not detected by Keil

Andreas

My nrf51 DK Board is not detected by Keil as jlink probe, but with other tools. As a result I am unable to download demo projects to my board.

  1. unmodified nrf51 dk has been equipped with jlink .bin file via USB bootloader (J-Link OB-SAM3U128-V2-NordicSemi 140918.bin)
  2. nrf51 dk is detected as Segger xxxxxx in nRFgo Studio
  3. nrf51 dk is detected by segger j-link configuration tool
  4. Keil download attempt fails with "No JLink Device found"
  5. Keil uVision V5.13.0.0 does not detect jlink under project/options/debug
  6. Keil JLink Cmd button detects JLink and reports Cortex M0 of nrf51422 in DOS box
  7. Windows Restart did not help
  8. a second nrf51 dk hardware shows same behaviour
  9. I tried segger 4.96d/f, Keil and nrf Installations in all sequence (incl. manual removal of related folders on HDD and computer restarts)
  10. By now there are 4 segger entries that cannot be removed by windows anymore (see picture)
  11. Some installled Keil driver seems to be pretty old and seems to be reinstalled everytime Keil 5.13 is installed (see picture)
  12. During segger installation I am now getting an install error (see picture) installed drivers in win8.1 image description

Please help in getting toochain working properly. Any hints appreciated.

Thanks very much in advance.

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    -----------------EDIT----------------------

    Finally JLINK showed up in Keil after following this procedure:

    (Not all of the steps may be required. Probably 7-10 will do the trick, as JLINK still was not detected after 6.)

    1. Deinstalled all Keil, nrf and segger tools
    2. Manually deleted all jlink related registry entries (by using "jlink" search in regedit)
    3. Restarted windows machine
    4. Unplugged nRF51-DK
    5. Installed Keil 5.13
    6. Installed Segger 4.96f
    7. Manually deinstalled all JLINK devices in device manager (use view all devices mode)
    8. Delete all jlink files in Windows/system32 and subfolders (use i.e. fileassassin when deletion is denied by system)
    9. Restarted machine
    10. Manually installed jlink drivers in device manager (updateDriver/searchComputer/listOfDevices/disk and point to \SEGGER\JLink_V496f\USBDriver)

    At least JLink shows up in Keil now, but still CDC device has yellow exclamation mark in device manager and driver installation fails with strange error:

    1. According to logfile \windows\dpinst.log installer is missing some jlink inf file (ah, yes, I deleted mentioned folder in past couple of days...)
    2. Manually created folder \Windows\System32\DriverStore\FileRepository\jlinkcdc.inf_amd64_8134dd13435f192f
    3. Then copied all cdc files from segger\usbdriver\cdc to folder above
    4. installed segger cdc driver by executable in segger\usbdriver\cdc folder without error

    Now, after one week of nrf51-dk installation its time to do some work on it...

    Hope this helps.

    -----------------/EDIT---------------------

    image description image description image description

    Can anyone confirm that download and debugging with Keil on nrf51-dk and win8.1 machine is working fine?

  • 0 in reply to Andreas

    For the record -- I am seeing this issue without resolution with my new nRF-DK. Using Win7 x64, uVision Lite 5.14, and Jlink v498v. Have reinstalled both uVision and Jlink with no avail.

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