Attachments (1) Download All
Nordic Case Info
  • Case ID: 308300
Options

nRF52840 not working

shibin s

The nRF52840 custom board not working, Hardware is  verified  many times, The chip detection is proper but  after the code flashing it will go to the device protected,I tried BLE and LED blink code both are not working,  

Parents
  • 0

    Hi,

    The error log indicates that the program thinks you're programming a nRF5340. Can you share the full device marking on the chip?

    Could you also specify what kind of debugger you're using to program your custom board and share a picture of how you have connected it?

    regards

    Jared 

  • 0 in reply to Jared

    Hi, Thank you for your response, Files and pics  related to this issue I attached bellow

    We are using j-Link EDU for programming 

    connection   

    external power         J-link                         nRF52840

       3.3V          --->            VTref           ....>          3.3V

       GND          ....>            GND          ...>           GND

                                        SWDIO           ....>             SWDIO

                                       SWCLK            ...>            SWCLK

    Fullscreen 2023-05-23T12_55_12.133Z-log.txt Download

  • 0 in reply to shibin s

    Hi,

    Are you able to recover the device if you use nRF Command Line Tools':

    regards

    Jared

Reply Children
Terms of service