: 별 내용은 없고 참고용 자료입니다.
에러는 다음처럼 나오고
Access protection is enabled, can't read device version
[error] [ nRF52] - 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 '~~~\peripheral_hids_keyboard\build\zephyr\zephyr.hex'
--sectoranduicrerase
--verify
-f NRF52
--snr 1050365745
▶ 로그 내용에 보면 에러및 수정방법이 나오네요.
west flash --recover
▶ west 명령은 직접 cmd 창을 열고 실행이 안되고 다음처럼 cmd 창을 열어야 합니다. ( PATH 지정 안됐을경우)
▶ nRF Connect for Desktop 실행하기
▶ Toolchain Manager 열기
▶ 설치된 SDK 찾기
▶ 아래 화살표 누르고 Open command prompt 실행하기
▶ 프로젝트 디렉토리 이동 ( 미이동시 다음처럼 에러가 발생합니다.)
: --build-dir was not given, and ~~~
C:\NCS\v2.4.0>west flash --recover
FATAL ERROR: --build-dir was not given, and neither C:\NCS\v2.4.0 nor C:\NCS\v2.4.0\build are zephyr build directories.
▶ 프로젝트 디렉토리에서 "west flash --recover" 실행하기
C:\Project\nordic\myApps\peripheral_hids_keyboard\build>west flash --recover
-- west flash: rebuilding
ninja: no work to do.
-- west flash: using runner nrfjprog
Using board 1050365745
-- runners.nrfjprog: Recovering and erasing all flash memory.
Recovering device. This operation might take 30s.
Erasing user code and UICR flash areas.
Writing image to disable ap protect.
-- runners.nrfjprog: Flashing file: C:\Project\nordic\myApps\peripheral_hids_keyboard\build\zephyr\zephyr.hex
[ #################### ] 2.336s | Erase file - Done erasing
[ #################### ] 3.669s | Program file - Done programming
[ #################### ] 1.373s | Verify file - Done verifying
Enabling pin reset.
Applying pin reset.
-- runners.nrfjprog: Board with serial number 1050365745 flashed successfully.
▶ 이후 NCS 의 flash 버튼 OK
그럼 수고하세요.
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