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Programming nrfjprog programming

parthee

Im try to program using nrfjprog in BMD 350 module. After that device not responding for debug mode in segger software. 

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    Hi,

    I cannot say what caused the issue without knowing more, but there are a few typical reasons for not being able to debug after programming:

    1. The hex file(s) you program enable readback protection (APPROTECT) by writing to UICR.APPROTECT. If so, you should  be able to do a full chip erase using "nrfjprog -e" to recover.
    2. The firmware puts some GPIOs that are connected to SWDIO or SWCLK so that it prevents SWD communication. If so, you would need to make HW adjustments to recover.
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  • 0

    Hi,

    I cannot say what caused the issue without knowing more, but there are a few typical reasons for not being able to debug after programming:

    1. The hex file(s) you program enable readback protection (APPROTECT) by writing to UICR.APPROTECT. If so, you should  be able to do a full chip erase using "nrfjprog -e" to recover.
    2. The firmware puts some GPIOs that are connected to SWDIO or SWCLK so that it prevents SWD communication. If so, you would need to make HW adjustments to recover.
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