Cannot recover nrf52840 with nrfjprog

[Gauthier]

We have this unit with an nrf52840, it suddenly refused to respond to `nrfjprog --recover`.

This is the second unit this happens with.

The power seems ok (we can see on UART that the unit runs its firmware).

Attached is the log file from nrfjprog.

We tested several cables, several SEGGER J-link programmers, several USB connectors, from Ubuntu or MacOS, ...

Other units are fine, it's just this one and one more.

I've tried these, none of it worked:

- `nrfjprog --rbp ALL`

- JLinkExe with Cortex-M4, SWD, 4000 kHz. On the faulty unit, it stops at "Cannot connect to target.". On working units, it comes further (fails later, presumably because of approtect).

- I have a recollection, when this happened the last time, of trying to write to DP registers with JLinkExe. It was not possible. I don't recall the commands.

$ nrfjprog --version
nrfjprog version: 10.14.0 external
JLinkARM.dll version: 7.54c

What is going on, how can I solve it?

[Gauthier]

Apparently, attaching log files does not work well here. 

Here it comes in plain text:

[2021-Nov-22 11:26:36] [ info] --------------------------------------------------------------------------------
[2021-Nov-22 11:26:36] [ info] nrfjprog --recover --log 
[2021-Nov-22 11:26:36] [ info] nrfjprog version 10.14.0 external
[2021-Nov-22 11:26:36] [ info] --------------------------------------------------------------------------------
[2021-Nov-22 11:26:36] [ info] Load library at /opt/nrf-command-line-tools/lib/libnrfjprogdll.so.
[2021-Nov-22 11:26:36] [ info] Library loaded, loading member functions.
[2021-Nov-22 11:26:36] [ info] Member functions succesfully loaded.
[2021-Nov-22 11:26:36] [debug] [ Client] - open
[2021-Nov-22 11:26:36] [debug] [ Client] - start
[2021-Nov-22 11:26:36] [ info] [ Client] - stdout: Jlinkarm nRF Worker ready. Handling sequence b6b3a807-6cf7-4e87-b3e5-7d61cd016de9.
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - Logger sink registered in Segger backend logger
[2021-Nov-22 11:26:36] [debug] [ JLink] - Logger sink registered in JLink logger
[2021-Nov-22 11:26:36] [debug] [ nRFXX] - open
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - open_dll
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - No J-Link DLL path was provided. Attempting to auto detect.
[2021-Nov-22 11:26:36] [ info] [SeggerBackend] - Load library at /opt/SEGGER/JLink/libjlinkarm.so.7.54.3.
[2021-Nov-22 11:26:36] [trace] [ Client] - Command open executed for 2 milliseconds with result 0
[2021-Nov-22 11:26:36] [debug] [ Client] - enum_emu_snr
[2021-Nov-22 11:26:36] [ info] [SeggerBackend] - Library loaded, loading member functions.
[2021-Nov-22 11:26:36] [ info] [SeggerBackend] - Member functions succesfully loaded.
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - dll_version
[2021-Nov-22 11:26:36] [ info] [SeggerBackend] - Segger dll version 7.54.c loaded.
[2021-Nov-22 11:26:36] [trace] [ Worker] - Command open executed for 2 milliseconds with result 0
[2021-Nov-22 11:26:36] [debug] [ nRFXX] - enum_emu_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - is_connected_to_emu
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - enum_emu_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - ---just_enum_emu_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - ---just_get_num_emus
[2021-Nov-22 11:26:36] [trace] [ Client] - Command enum_emu_snr executed for 171 milliseconds with result 0
[2021-Nov-22 11:26:36] [debug] [ Client] - connect_to_emu_with_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - is_connected_to_emu
[2021-Nov-22 11:26:36] [trace] [ Worker] - Command enum_emu_snr executed for 171 milliseconds with result 0
[2021-Nov-22 11:26:36] [debug] [ nRFXX] - connect_to_emu_with_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - is_connected_to_emu
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - connect_to_emu_with_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - is_connected_to_emu
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - ---just_enum_emu_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - ---just_get_num_emus
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - ---just_connect_to_emu_with_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - ---just_connect_to_emu_without_snr
[2021-Nov-22 11:26:36] [debug] [SeggerBackend] - Segger logging enabled.
[2021-Nov-22 11:26:37] [trace] [ JLink] - Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
[2021-Nov-22 11:26:37] [trace] [ JLink] - Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
[2021-Nov-22 11:26:37] [trace] [ JLink] - Hardware: V8.00
[2021-Nov-22 11:26:37] [trace] [ JLink] - S/N: 268006363
[2021-Nov-22 11:26:37] [trace] [ JLink] - OEM: SEGGER-EDU
[2021-Nov-22 11:26:37] [trace] [ JLink] - Feature(s): FlashBP, GDB
[2021-Nov-22 11:26:37] [trace] [ JLink] - TELNET listener socket opened on port 19021
[2021-Nov-22 11:26:37] [trace] [ JLink] - WEBSRV Starting webserver
[2021-Nov-22 11:26:37] [trace] [ JLink] - WEBSRV Webserver running on local port 19080
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 120.009ms returns "O.K." 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_Lock() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_GetHWStatus(...) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.296ms returns 0 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_ExecCommand("SetRestartOnClose = 0", ...). 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.022ms returns 0x01 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_ExecCommand("DisableFlashDL", ...). 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.017ms returns 0x00 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...). 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.004ms returns 0x00 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_SetHookUnsecureDialog 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_SetHookUnsecureDialog(...)
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.015ms returns 0 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_TIF_Select(JLINKARM_TIF_SWD) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.985ms returns 0x00 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_SetSpeed(2000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.206ms 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_GetSN() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.002ms returns 268006363 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - read_debug_port_idr
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - read_debug_port_register
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - coresight_configure
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_Configure() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 1.754ms returns 0 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.254ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.208ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.273ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.259ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.257ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.242ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.208ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.192ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.194ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.211ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.228ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.308ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.207ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.210ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.206ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.199ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.187ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.202ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.186ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.199ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.204ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ Client] - Command connect_to_emu_with_snr executed for 362 milliseconds with result -102
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.219ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.191ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.209ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.005ms 
[2021-Nov-22 11:26:37] [trace] [ Worker] - Command connect_to_emu_with_snr executed for 362 milliseconds with result -102
[2021-Nov-22 11:26:37] [debug] [ nRFXX] - close
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - is_connected_to_emu
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_IsOpen() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.002ms returns 0x01 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_Lock() 
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - close
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - disconnect_from_emu
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_disconnect_from_emu
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - is_connected_to_device
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_IsConnected() 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.002ms returns FALSE 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_is_debug_region_powered
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.192ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.210ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.196ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.223ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.186ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.229ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.233ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.207ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.207ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.342ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.198ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.211ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.233ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.201ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.195ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.210ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.185ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.260ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.206ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.208ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - ---just_abort_debug_action
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.230ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.186ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.205ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) 
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.186ms returns -1 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_HasError() 
[2021-Nov-22 11:26:37] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2021-Nov-22 11:26:37] [trace] [ JLink] - - 0.005ms 
[2021-Nov-22 11:26:37] [trace] [ JLink] - JLINK_Close() 
[2021-Nov-22 11:26:37] [debug] [SeggerBackend] - Segger Backend closed.
[2021-Nov-22 11:26:37] [debug] [ nRFXX] - nRF family DLL closed
[2021-Nov-22 11:26:37] [trace] [ Client] - Command close executed for 34 milliseconds with result 0
[2021-Nov-22 11:26:37] [debug] [ Client] - terminate
[2021-Nov-22 11:26:37] [trace] [ Client] - Command terminate executed for 0 milliseconds with result 0
[2021-Nov-22 11:26:37] [trace] [ Worker] - Command close executed for 34 milliseconds with result 0
[2021-Nov-22 11:26:37] [trace] [ Worker] - Command terminate executed for 0 milliseconds with result 0
[2021-Nov-22 11:26:37] [trace] [ Worker] - Executed 5 commands for 569 milliseconds
[2021-Nov-22 11:26:37] [debug] [ Client] - Worker process exited with code: 0
[2021-Nov-22 11:26:37] [debug] [ Client] - Worker process exited with code: 0
[2021-Nov-22 11:26:37] [debug] [ Client] - Child process terminated with result 0
[2021-Nov-22 11:26:37] [trace] [ Client] - Executed 5 commands for 569 milliseconds
[2021-Nov-22 11:26:37] [debug] [ Client] - terminate