HW:
- J-link standard
- nRF52840 Dongle
SW Support Info:
IMPORTANT: The data below could contain sensitive or confidential information about your environment.
If you do not wish this to be seen by others, please make sure to remove it before sharing.
For help and support, visit the Nordic DevZone at https://devzone.nordicsemi.com/.
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I can successfully program the dongle using nRFConnect. However, when I try to program with J-Link via VSCode, I get the following error:
Flashing build to 260117435 /bin/sh -c west flash -d /Users/josh/Code/hw/nrf/lights/blinky/build --skip-rebuild --dev-id 260117435 -- west flash: using runner nrfjprog -- runners.nrfjprog: Flashing file: /Users/josh/Code/hw/nrf/lights/blinky/build/zephyr/zephyr.hex [error] [ Client] - Encountered error -90: Command read_device_info executed for 12 milliseconds with result -90 [error] [ Client] - Encountered error -90: Command read_memory_descriptors executed for 11 milliseconds with result -90 [error] [ Worker] - Access protection is enabled, can't read device version. [error] [ Worker] - Can't read memory descriptors, ap-protection is enabled. [error] [ Client] - Encountered error -90: Command erase_file executed for 23 milliseconds with result -90 [ ###### ] 0.000s | Erase file - Check image [ ##### ] 0.000s | Check image validity - Initialize devic[ ########## ] 0.000s | Check image validity - Check region 0 s[ ############### ] 0.000s | Check image validity - block 1 of 2 [error] [ nRF52] - Failed while detecting device memory block protection status! [error] [ nRF52] - Failed while erasing device. -90: Access protection is enabled, can't read device version. [error] [ Worker] - Access protection is enabled, can't read device version. ERROR: The operation attempted is unavailable due to readback protection in ERROR: your device. Please use --recover to unlock the device. NOTE: For additional output, try running again with logging enabled (--log). NOTE: Any generated log error messages will be displayed. ERROR: runners.nrfjprog: Flashing failed because the target must be recovered. To fix, run "west flash --recover" instead. Note: this will recover and erase all flash memory prior to reflashing. FATAL ERROR: command exited with status 24: nrfjprog --program /Users/josh/Code/hw/nrf/lights/blinky/build/zephyr/zephyr.hex --sectoranduicrerase --verify -f NRF52 --snr 260117435
I then run west flash --recover and I can connect to the device. However, when I successfully flash, the program never runs (simple blinky example). If I revert back to factory dfu bootloader and reflash with nRFConnect, it works again... however, I can't debug/access using the jlink.
Goal: be able to keep DFU bootloader, while also able to flash/debug using J-Link in VSCode... any help much appreciated!
