board nrf52832 does not connect anymore

I am following the BLE accademy course and flashing an exercise, the exercise did not perform as requested.
I could not flash anymore.
I clear the board from the switch button and then could not connect the board anymore even I coud see it by the JLINK or nrfConnect or Teraterm.
I tried several version of JLINK without success.
I then made a power ON with the IfBoot pressed and the board now act strangely.
The board led flash every second for a while and is visible on the USB but then flash rapidly and disapear from the USB.
Reading manuals I do not understand what to upload here, what file, how...
Some manual indicate the use of nrfGo which is obsolete... I am completly lost.
Thank you for some hints to start again.
JLINK 780c
nRF Connect 4.2.0
0 jean-marc over 1 year ago in reply to Håkon Alseth
Oh! I though it was only for URL upload, sorry
Fullscreen 5164.log.log Download
[2023-Sept-13 16:48:39] [debug] --------------------------------------------------------------------------------
[2023-Sept-13 16:48:39] [debug] C:\Program Files\Nordic Semiconductor\nrf-command-line-tools\bin\nrfjprog.exe --recover -f nrf52 --log 
[2023-Sept-13 16:48:39] [debug] nrfjprog version 10.23.0 external
[2023-Sept-13 16:48:39] [debug] --------------------------------------------------------------------------------
[2023-Sept-13 16:48:39] [ info] Load library at C:\Program Files\Nordic Semiconductor\nrf-command-line-tools\bin\nrfjprog.dll.
[2023-Sept-13 16:48:39] [ info] Library loaded, loading member functions.
[2023-Sept-13 16:48:39] [ info] Member functions succesfully loaded.
[2023-Sept-13 16:48:39] [debug] [ Client] - open
[2023-Sept-13 16:48:39] [debug] [ Client] - start
[2023-Sept-13 16:48:39] [ info] [ Client] - stdout: Jlinkarm nRF Worker ready. Handling sequence 4fa841c6-c310-45f6-8085-f96d91b9652c.

[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Logger sink registered in Segger backend logger
[2023-Sept-13 16:48:39] [debug] [  JLink] - Logger sink registered in JLink logger
[2023-Sept-13 16:48:39] [debug] [  nRF52] - open
[2023-Sept-13 16:48:39] [debug] [  nRF52] - just_check_family
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - open_dll
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - No J-Link DLL path was provided. Attempting to auto detect.
[2023-Sept-13 16:48:39] [trace] [ Client] - Command open executed for 57 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [ Client] - config
[2023-Sept-13 16:48:39] [ info] [SeggerBackend] - Load library at C:\Program Files\SEGGER\JLink\JLink_x64.dll.
[2023-Sept-13 16:48:39] [ info] [SeggerBackend] - Library loaded, loading member functions.
[2023-Sept-13 16:48:39] [ info] [SeggerBackend] - Member functions succesfully loaded.
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Set batch mode
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - dll_version
[2023-Sept-13 16:48:39] [ info] [SeggerBackend] - Segger dll version 7.80.c loaded.
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command open executed for 8 milliseconds with result 0
[2023-Sept-13 16:48:39] [trace] [ Client] - Command config executed for 14 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [ Client] - enum_emu_snr
[2023-Sept-13 16:48:39] [debug] [  nRF52] - config
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - enum_emu_snr
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command config executed for 4 milliseconds with result 0
[2023-Sept-13 16:48:39] [trace] [ Client] - Command enum_emu_con_info executed for 14 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [ Client] - connect_to_emu_with_snr
[2023-Sept-13 16:48:39] [debug] [  nRF52] - enum_emu_con_info
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - enum_emu_con_info
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command enum_emu_con_info executed for 4 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [  nRF52] - connect_to_emu_with_snr
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - connect_to_emu_with_snr
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_enum_emu_snr
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_get_num_emus
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_connect_to_emu_with_snr
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_connect_to_emu_without_snr
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Segger logging enabled.
[2023-Sept-13 16:48:39] [trace] [  JLink] - Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Sep 21 2022 09:57:39
[2023-Sept-13 16:48:39] [trace] [  JLink] - Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Sep 21 2022 09:57:39
[2023-Sept-13 16:48:39] [trace] [  JLink] - Hardware: V1.00
[2023-Sept-13 16:48:39] [trace] [  JLink] - S/N: 682571569
[2023-Sept-13 16:48:39] [trace] [  JLink] - OEM: SEGGER
[2023-Sept-13 16:48:39] [trace] [  JLink] - Feature(s): RDI, FlashBP, FlashDL, JFlash, GDB
[2023-Sept-13 16:48:39] [trace] [  JLink] - USB speed mode: High speed (480 MBit/s)
[2023-Sept-13 16:48:39] [trace] [  JLink] - TELNET listener socket opened on port 19021
[2023-Sept-13 16:48:39] [trace] [  JLink] - WEBSRV WEBSRV_Init(): Starting webserver thread(s)
[2023-Sept-13 16:48:39] [trace] [  JLink] - WEBSRV Webserver running on local port 19080
[2023-Sept-13 16:48:39] [trace] [ Client] - Command connect_to_emu_with_snr executed for 59 milliseconds with result 0
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 22.656ms returns "O.K."  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_Lock()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_ExecCommand("SetRestartOnClose = 0", ...).   
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.003ms returns 0x01  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_ExecCommand("DisableFlashDL", ...).   
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.004ms returns 0x00  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...).   
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.004ms returns 0x00  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_SetHookUnsecureDialog  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_SetHookUnsecureDialog(...)
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.014ms returns 0  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_TIF_Select(JLINKARM_TIF_SWD)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.483ms returns 0x00  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_GetSpeedInfo()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - 10000000 Hz / n, n >= 10
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.014ms  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Connected emulator supports SWD speeds up to 1000kHz
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Requested speed 2000kHz is higher than the emulator max speed of 1000kHz
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_SetSpeed(2000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.068ms  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_GetSpeed()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.006ms returns 1000  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - SWD speed was reported as 1000kHz after requesting 2000kHz. Check the capabilities of the selected emulator.
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_GetSN()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.005ms returns 682571569  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.007ms  
[2023-Sept-13 16:48:39] [debug] [  nRF52] - read_device_family
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command connect_to_emu_with_snr executed for 51 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [ Client] - read_connected_emu_snr
[2023-Sept-13 16:48:39] [trace] [ Client] - Command read_connected_emu_snr executed for 14 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [ Client] - recover
[2023-Sept-13 16:48:39] [debug] [  nRF52] - read_connected_emu_snr
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_IsOpen()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.015ms returns 0x01  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_Lock()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - read_connected_emu_snr
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.018ms  
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command read_connected_emu_snr executed for 0 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [  nRF52] - recover
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_IsOpen()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.024ms returns 0x01  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_Lock()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [debug] [  nRF52] - Just_recover
[2023-Sept-13 16:48:39] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - read_access_port_register
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_read_access_port_register
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - coresight_configure
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_GetHWStatus(...)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.155ms returns 0  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_Configure()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 101.071ms returns 0  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - read_debug_port_idr
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - read_debug_port_register
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.757ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.793ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.775ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.770ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.767ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.750ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.739ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.802ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.751ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.765ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.734ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.743ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.779ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.776ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.745ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.743ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.791ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.905ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.796ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.770ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.747ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.756ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.732ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.749ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.779ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.745ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.736ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.767ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.734ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.797ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.734ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.741ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.760ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.752ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.740ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.742ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.838ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.859ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.774ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.754ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.799ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.758ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 1.995ms  
[2023-Sept-13 16:48:39] [error] [ Worker] - An unknown error.
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command recover executed for 143 milliseconds with result -21
[2023-Sept-13 16:48:39] [error] [ Client] - Encountered error -21: Command recover executed for 152 milliseconds with result -21
[2023-Sept-13 16:48:39] [debug] [  nRF52] - close
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_emu
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_IsOpen()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.013ms returns 0x01  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_Lock()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - close
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - disconnect_from_emu
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_disconnect_from_emu
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - is_connected_to_device
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_IsConnected()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.006ms returns FALSE  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_is_debug_region_powered
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.778ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.829ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.776ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.767ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.744ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.733ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.743ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.735ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.740ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.792ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.770ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.764ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.762ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.755ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.745ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.812ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.906ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.799ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.756ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.772ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.809ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.781ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.782ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.829ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.758ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.738ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 1.333ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.850ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.787ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.859ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.778ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.820ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.752ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.900ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.759ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.786ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - ---just_abort_debug_action
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.806ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.835ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 1.157ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 1.088ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 1.070ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 1.069ms returns -1  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_HasError()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Ignore exception An unknown error.
[2023-Sept-13 16:48:39] [trace] [  JLink] - - 0.456ms  
[2023-Sept-13 16:48:39] [trace] [  JLink] - JLINK_Close()  
[2023-Sept-13 16:48:39] [debug] [SeggerBackend] - Segger Backend closed.
[2023-Sept-13 16:48:39] [debug] [  nRF52] - nRF family DLL closed
[2023-Sept-13 16:48:39] [trace] [ Client] - Command close executed for 94 milliseconds with result 0
[2023-Sept-13 16:48:39] [debug] [ Client] - terminate
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command close executed for 76 milliseconds with result 0
[2023-Sept-13 16:48:39] [trace] [ Client] - Command terminate executed for 36 milliseconds with result 0
[2023-Sept-13 16:48:39] [trace] [ Worker] - Command terminate executed for 0 milliseconds with result 0
[2023-Sept-13 16:48:39] [trace] [ Worker] - Executed 8 commands for 286 milliseconds
[2023-Sept-13 16:48:39] [debug] [ Client] - Worker process exited with code: 0
[2023-Sept-13 16:48:39] [debug] [ Client] - Worker process exited with code: 0
[2023-Sept-13 16:48:39] [debug] [ Client] - Child process terminated with result 0
[2023-Sept-13 16:48:39] [trace] [ Client] - Executed 8 commands for 440 milliseconds
[2023-Sept-13 16:48:39] [debug] [ Client] - terminate
And yes I call "nrfjprog --recover -f nrf52"
Thanks again
0 Håkon Alseth over 1 year ago in reply to jean-marc

Thanks for the log.

Unfortunately, it shows that there's no successful contact with the nRF-chip at all.

Could you share a picture of the nRF52-DK board? I just want to check all the switch positions and so forth, in case there's anything there.

Kind regards,

Håkon
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0 jean-marc over 1 year ago in reply to Håkon Alseth

Thank you.
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0 Håkon Alseth over 1 year ago in reply to jean-marc

Hi,

You have an older engineering device, which is reflected by the <v1.0 version of the nRF52-DK. You should use a newer DK, ideally equal to the IC revision that you will go into production with, which is highly likely nRF52832 revision 3.

Kind regards,

Håkon
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0 jean-marc over 1 year ago in reply to Håkon Alseth

OK thank you. I am wonder why it worked up thru the course "nRfconnect sdk Fundamental" and now it does not work for the "BLE fundamental" course. Too bad I was using it to train me using Nordic products.

Is it possible to upgrade the board by the firmware? Or the softDevice?
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