nrfjprog failures

[allard.p]

I'm working on custom test software for use in production programming/testing of my product containing a nRF9160. I'm using the nrfjprog executable, but with problems, every second call to nrfjprog --program is failing:

D:\[path here]\nrfjprog\nrfjprog 
--ini D:\[path here]\nrfjprog\nrfjprog.ini 
-f NRF91 
-c 4000 
-s [serial here] 
--program D:\[path here]\temp_files\74e8207a-5983-41e5-b1e6-45eaa2d0f0fb.hex 
--sectorerase 
--verify 
--log 
[error] [ Client] - Encountered error -102: Command program_file executed for 188 milliseconds with result -102 
[error] [ nRF91] - The write access failed, but no cause could be determined. 
[error] [ nRF91] - It may be due to an unaligned access, accessing a nonexistent memory, or a communication issue. 
[error] [ nRF91] - Failed while performing 'Write' operation on target address 0x00000000. -102: An unknown error. 
[error] [ nRF91] - Failed while reading device information. 
[error] [ Worker] - An unknown error. ERROR: JLinkARM DLL reported an error. Try again. If error condition ERROR: persists, run the same command again with argument --log, contact Nordic ERROR: Semiconductor and provide the generated log.log file to them.

The log file is attached.

nrfjprog v10.22.1

JLINK v7.80c

nrf connect system report:

# nRFConnect System Report - 2023-07-17T12-26-40.066Z

- System:     Acer Aspire TC-885
- BIOS:       American Megatrends Inc ACRSYS - 1072009
- CPU:        1 x Intel Core™ i7-8700 3.2 GHz 12 cores (6 physical)
- Memory:     5.3 GB free of 15.9 GB total
- Filesystem: C: (NTFS) 930.9 GB 47.6% used

- OS:         Microsoft Windows 10 Home (10.0.19045) Windows x64

- Versions
    - kernel: 10.0.19045
    - git: 2.30.0.windows.1
    - node: 16.17.1
    - python: 3.11.0
    - python3: 3.10.11
    - nrf-device-lib-js: 0.6.12
    - nrf-device-lib: 0.15.3
    - nrfjprog DLL: 10.19.1
    - JLink: JLink_V7.80c

- Connected devices:
    - CAFEBABE : COM24
    - 000600105884 Unknown: undefined
    - {34C052A1-08B6-5809-881E-95820D434537} : COM21
    - FTXP9XD7 : COM10
    - {921BE77D-DA9D-11ED-A25F-94C69193D3EE} : COM7, COM8

6712.log.log

[Rory]

nRF91 and nRF53 devices can have their CTRL-AP port that the JLink uses become locked for readback protection (and programming) using the APPROTECT feature. When this happens, you need to recover the device with the command below before you can program it again.

nrfjprog --family NRF91 --recover

[allard.p]

I checked my application, I do not set APPROTECT anywhere. The --recover works, but triggers a full flash erase (?), i do not want this, because it erases all my settings etc.

I also have the problem with programming from VSCode. Program + erase always works. Program with --sectorerase does not work, the same 'unknown error (-102)'.  The error occurs after 'erasing sector 2':

[ #############        ]   0.259s | Erasing non-volatile memory - block 2 of 2   

The erase of block1 succeeded,  so i do not think the problem is with APPROTECT. I'm also able to connect with J-LINK commander, so the debug port is working.

I did not have these errors in the past, but I do not known what caused the errors to happen.

[Michal]

Hello,

I am going to consult with the experts and get back to you.

Best regards,

Michal

[Michal]

Hello again,

Could you try upgrading your JLink driver? It may have gotten fixed around 7.82.

Best regards,

Michal

[allard.p]

I removed my version of NRFJPROG and installed v10.23.0. This version comes with jlink driver 7.88j, same problems. I assume NRF connect for VScode takes the NRFJPROG version installed under "C:\Program Files\Nordic Semiconductor\nrf-command-line-tools" ?