JLinkARM.dll reported "-1", an unknown error

[Nicolas Goualard]

Hi,

I am trying to erase and flash a nRF52840 chip on a custom board. I use a J-Link EDUwith the Cortex M adapter to plug onto the board. I checked the hardware conf several times, it looks fine to me.

I am running Linux Mint 20.3 on Windows VirtualBox.

Running nrfjprog -v delivers the following:
nrfjprog version: 10.15.2 external
JLinkARM.dll version: 7.60e

I attached the corresponding log.log file. Do you have an idea where the problem might be ?

Thanks in advance for your help.
Best regards,
Nicolas G.

Fullscreen 2727.log.log Download

[2022-Jan-26 11:20:07] [ info] --------------------------------------------------------------------------------
[2022-Jan-26 11:20:07] [ info] nrfjprog --eraseall -f nrf52 --log /home/nicolas/Documents/motion_s_fw/logs 
[2022-Jan-26 11:20:07] [ info] nrfjprog version 10.15.2 external
[2022-Jan-26 11:20:07] [ info] --------------------------------------------------------------------------------
[2022-Jan-26 11:20:07] [ info] Load library at /opt/nrf-command-line-tools/lib/libnrfjprogdll.so.
[2022-Jan-26 11:20:07] [ info] Library loaded, loading member functions.
[2022-Jan-26 11:20:07] [ info] Member functions succesfully loaded.
[2022-Jan-26 11:20:07] [debug] [ Client] - open
[2022-Jan-26 11:20:07] [debug] [ Client] - start
[2022-Jan-26 11:20:07] [ info] [ Client] - stdout: Jlinkarm nRF Worker ready. Handling sequence f03f96e9-0e69-49df-bd36-0bd65cc4d9f8.
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - Logger sink registered in Segger backend logger
[2022-Jan-26 11:20:07] [debug] [  JLink] - Logger sink registered in JLink logger
[2022-Jan-26 11:20:07] [debug] [  nRF52] - open
[2022-Jan-26 11:20:07] [debug] [  nRF52] - just_check_family
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - open_dll
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - No J-Link DLL path was provided. Attempting to auto detect.
[2022-Jan-26 11:20:07] [trace] [ Client] - Command open executed for 2 milliseconds with result 0
[2022-Jan-26 11:20:07] [debug] [ Client] - enum_emu_snr
[2022-Jan-26 11:20:07] [ info] [SeggerBackend] - Load library at /opt/SEGGER/JLink/libjlinkarm.so.
[2022-Jan-26 11:20:07] [ info] [SeggerBackend] - Library loaded, loading member functions.
[2022-Jan-26 11:20:07] [ info] [SeggerBackend] - Member functions succesfully loaded.
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - dll_version
[2022-Jan-26 11:20:07] [ info] [SeggerBackend] - Segger dll version 7.60.e loaded.
[2022-Jan-26 11:20:07] [trace] [ Worker] - Command open executed for 2 milliseconds with result 0
[2022-Jan-26 11:20:07] [debug] [  nRF52] - enum_emu_con_info
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - is_connected_to_emu
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - enum_emu_con_info
[2022-Jan-26 11:20:07] [trace] [ Client] - Command enum_emu_con_info executed for 94 milliseconds with result 0
[2022-Jan-26 11:20:07] [debug] [ Client] - connect_to_emu_with_snr
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - is_connected_to_emu
[2022-Jan-26 11:20:07] [trace] [ Worker] - Command enum_emu_con_info executed for 94 milliseconds with result 0
[2022-Jan-26 11:20:07] [debug] [  nRF52] - connect_to_emu_with_snr
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - is_connected_to_emu
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - connect_to_emu_with_snr
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - is_connected_to_emu
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - ---just_enum_emu_snr
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - ---just_get_num_emus
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - ---just_connect_to_emu_with_snr
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - ---just_connect_to_emu_without_snr
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - Segger logging enabled.
[2022-Jan-26 11:20:07] [trace] [  JLink] - Firmware: J-Link V9 compiled May  7 2021 16:26:12
[2022-Jan-26 11:20:07] [trace] [  JLink] - Firmware: J-Link V9 compiled May  7 2021 16:26:12
[2022-Jan-26 11:20:07] [trace] [  JLink] - Decompressing FW timestamp took 903 us
[2022-Jan-26 11:20:07] [trace] [  JLink] - Hardware: V9.30
[2022-Jan-26 11:20:07] [trace] [  JLink] - S/N: 269306041
[2022-Jan-26 11:20:07] [trace] [  JLink] - OEM: SEGGER-EDU
[2022-Jan-26 11:20:07] [trace] [  JLink] - Feature(s): FlashBP, GDB
[2022-Jan-26 11:20:07] [trace] [  JLink] - TELNET listener socket opened on port 19021
[2022-Jan-26 11:20:07] [trace] [  JLink] - WEBSRV WEBSRV_Init(): Starting webserver thread(s)
[2022-Jan-26 11:20:07] [trace] [  JLink] - WEBSRV Webserver running on local port 19080
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 157.624ms returns "O.K."  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_Lock()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_GetHWStatus(...)  
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 3.448ms returns 0  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_ExecCommand("SetRestartOnClose = 0", ...).   
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 0.019ms returns 0x01  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_ExecCommand("DisableFlashDL", ...).   
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 0.183ms returns 0x00  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...).   
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 0.019ms returns 0x00  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_SetHookUnsecureDialog  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_SetHookUnsecureDialog(...)
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 0.062ms returns 0  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_TIF_Select(JLINKARM_TIF_SWD)  
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 18.876ms returns 0x00  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_SetSpeed(2000)  
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 5.828ms  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_GetSN()  
[2022-Jan-26 11:20:07] [trace] [  JLink] - - 0.030ms returns 269306041  
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - read_debug_port_idr
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - read_debug_port_register
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2022-Jan-26 11:20:07] [debug] [SeggerBackend] - coresight_configure
[2022-Jan-26 11:20:07] [trace] [  JLink] - JLINK_CORESIGHT_Configure()  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 103.693ms returns 0  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 29.410ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 2.621ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 2.833ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 2.583ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.941ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 2.889ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.934ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 2.510ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.841ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.809ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 6.500ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.052ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.824ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.535ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 7.645ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.976ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.876ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.786ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 2.884ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.895ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.792ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.699ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.985ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 6.828ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.866ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.870ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.151ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 6.523ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.600ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.946ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 0.124ms  
[2022-Jan-26 11:20:08] [trace] [ Worker] - Command connect_to_emu_with_snr executed for 728 milliseconds with result -102
[2022-Jan-26 11:20:08] [trace] [ Client] - Command connect_to_emu_with_snr executed for 729 milliseconds with result -102
[2022-Jan-26 11:20:08] [debug] [  nRF52] - close
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - is_connected_to_emu
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_IsOpen()  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 0.021ms returns 0x01  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_Lock()  
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - close
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - disconnect_from_emu
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_disconnect_from_emu
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - is_connected_to_device
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_IsConnected()  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 0.016ms returns FALSE  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_is_debug_region_powered
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.403ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.041ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 6.061ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.976ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.114ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.360ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.064ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 7.259ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.976ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 10.804ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.934ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.651ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.572ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.882ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.539ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.462ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.654ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.813ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.202ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 2.691ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.795ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 5.095ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.880ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.670ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.040ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - ---just_abort_debug_action
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.689ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 3.920ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.501ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 6.444ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 4.261ms returns -1  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_HasError()  
[2022-Jan-26 11:20:08] [error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[2022-Jan-26 11:20:08] [trace] [  JLink] - - 0.024ms  
[2022-Jan-26 11:20:08] [trace] [  JLink] - JLINK_Close()  
[2022-Jan-26 11:20:08] [debug] [SeggerBackend] - Segger Backend closed.
[2022-Jan-26 11:20:08] [debug] [  nRF52] - nRF family DLL closed
[2022-Jan-26 11:20:08] [trace] [ Client] - Command close executed for 172 milliseconds with result 0
[2022-Jan-26 11:20:08] [debug] [ Client] - terminate
[2022-Jan-26 11:20:08] [trace] [ Client] - Command terminate executed for 0 milliseconds with result 0
[2022-Jan-26 11:20:08] [trace] [ Worker] - Command close executed for 172 milliseconds with result 0
[2022-Jan-26 11:20:08] [trace] [ Worker] - Command terminate executed for 0 milliseconds with result 0
[2022-Jan-26 11:20:08] [trace] [ Worker] - Executed 5 commands for 996 milliseconds
[2022-Jan-26 11:20:08] [debug] [ Client] - Worker process exited with code: 0
[2022-Jan-26 11:20:08] [debug] [ Client] - Worker process exited with code: 0
[2022-Jan-26 11:20:08] [debug] [ Client] - Tried to wait on already ended process: wait error: No child processes
[2022-Jan-26 11:20:08] [debug] [ Client] - Child process terminated with result 0
[2022-Jan-26 11:20:08] [trace] [ Client] - Executed 5 commands for 997 milliseconds
[2022-Jan-26 11:20:08] [debug] [ Client] - terminate

[JONATHAN LL]

Hi Nicolas,

Have some questions regarding the setup. 

Have you been able to program\erase other nRF products with this setup before? 

Is the custom board powered?

Have you made sure you are not mixing up the CLK and IO line?

Does the nRF52840 have readback protection enabled, have you tested the recover command?

Regards,
Jonathan