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How to connecting the Power Profiler Kit to a computer and measuring current without an nRF5 DK?

zhangchi

In spec "PPK_User_Guide_v2.3.1" ,chapter " 6.6 Measuring current on custom hardware without an nRF5 DK "

I connect PPK to computer as the picture above, micro USB for power supply and J-Link for PPK connection. But the app "nRF connector-power profiler" can only find J-Link but can't find PPK device.

What may cause this problem? Is this connection method right? Or what kind of J-Link we should use? 

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  • 0

    Hi

    Just to confirm. Have you set all the switches to the correct state for this setup? SW2 to External, COM to EXT, and SW4 to Reg.? Have you connected the device you're going to test to the External DUT header (P16)? Any SEGGER J-Link debugger should suffice.

    Could you also, please upload the log from nRFConnect, so I may have a look.

    Best regards,

    Simon

  • 0 in reply to Simonr

    Thank you for your reply.

    I have setted SW2 to External, COM to EXT, and SW4 to Reg. But I have not connected the device I'm going to test. The nRFConnect can't find the PPK. Following is the log from nRFConnect.

    2019-08-21T01:34:20.459Z INFO Application data folder: C:\Users\074954\AppData\Roaming\nrfconnect\pc-nrfconnect-ppk
    2019-08-21T01:34:20.465Z INFO App initialized
    2019-08-21T01:34:20.743Z DEBUG App pc-nrfconnect-ppk v2.2.0 official
    2019-08-21T01:34:20.743Z DEBUG App path: C:\Users\074954\.nrfconnect-apps\node_modules\pc-nrfconnect-ppk
    2019-08-21T01:34:20.743Z DEBUG nRFConnect 3.0.0 is supported by the app (^3.0.0)
    2019-08-21T01:34:20.743Z DEBUG nRFConnect path: C:\Users\074954\AppData\Local\Programs\nrfconnect\resources\app.asar
    2019-08-21T01:34:20.743Z DEBUG HomeDir: C:\Users\074954
    2019-08-21T01:34:20.743Z DEBUG TmpDir: C:\Users\074954\AppData\Local\Temp
    2019-08-21T01:34:23.839Z INFO Validating firmware for device with s/n 000156003747
    2019-08-21T01:34:23.847Z INFO PPK closed
    2019-08-21T01:34:24.940Z ERROR Error while setting up device 000156003747: Error occured when close opened device. Errorcode: CouldNotOpenDevice (0x4)
    Lowlevel error: LOW_VOLTAGE (fffffff4)

    2019-08-21T01:34:24.940Z INFO Deselecting device
    2019-08-21T01:34:24.943Z INFO PPK closed

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  • 0 in reply to Simonr

    Thank you for your reply.

    I have setted SW2 to External, COM to EXT, and SW4 to Reg. But I have not connected the device I'm going to test. The nRFConnect can't find the PPK. Following is the log from nRFConnect.

    2019-08-21T01:34:20.459Z INFO Application data folder: C:\Users\074954\AppData\Roaming\nrfconnect\pc-nrfconnect-ppk
    2019-08-21T01:34:20.465Z INFO App initialized
    2019-08-21T01:34:20.743Z DEBUG App pc-nrfconnect-ppk v2.2.0 official
    2019-08-21T01:34:20.743Z DEBUG App path: C:\Users\074954\.nrfconnect-apps\node_modules\pc-nrfconnect-ppk
    2019-08-21T01:34:20.743Z DEBUG nRFConnect 3.0.0 is supported by the app (^3.0.0)
    2019-08-21T01:34:20.743Z DEBUG nRFConnect path: C:\Users\074954\AppData\Local\Programs\nrfconnect\resources\app.asar
    2019-08-21T01:34:20.743Z DEBUG HomeDir: C:\Users\074954
    2019-08-21T01:34:20.743Z DEBUG TmpDir: C:\Users\074954\AppData\Local\Temp
    2019-08-21T01:34:23.839Z INFO Validating firmware for device with s/n 000156003747
    2019-08-21T01:34:23.847Z INFO PPK closed
    2019-08-21T01:34:24.940Z ERROR Error while setting up device 000156003747: Error occured when close opened device. Errorcode: CouldNotOpenDevice (0x4)
    Lowlevel error: LOW_VOLTAGE (fffffff4)

    2019-08-21T01:34:24.940Z INFO Deselecting device
    2019-08-21T01:34:24.943Z INFO PPK closed

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