board nrf52832 does not connect anymore

[jean-marc]

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Some manual indicate the use of nrfGo which is obsolete...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

[Håkon Alseth]

Hi,

 

The board led flash every second for a while and is visible on the USB but then flash rapidly and disapear from the USB.

Holding down this button and powering up will place the nRF52-DK in bootloader mode.

In this mode, where the X:\BOOTLOADER drive is enumerated, you shall not flash anything other than the jlink binary file, or the cmsis daplink binary.

Here's a direct link to the jlink recovery binary: https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/dev-kits/nrf5x-dk-files/j-link-ob-sam3u128-v2-nordicsemi-170724.bin

 

Found on this site: https://www.nordicsemi.com/Products/Development-hardware/nRF52-DK/Download?lang=en#infotabs

 

If you flashed another file than the jlink/cmsis dap fw while the device is in bootloader state, you can brick the board.

 

Does your board enumerate as a usb device at all now?

 

Kind regards,

Håkon

[jean-marc]

Great you fixed my bootloader problem. Thanks a lot Håkon Alseth 

Now I am back to the original problem :-(

With nRFConnect I get such messages: "Note: no pre-compiled firmware is available for the selected device."

or also this message "Unsupported device. The detected device could not be recognized as neither JLink device nor Nordic USB device."

I can connect thru TeraTerm.

I can see my board with nRFConnect, but cannot select it.

With VSCode I cannot see anymore my board connected, which was working before with VSCode

[Håkon Alseth]

Hi,

 

The log file should be created in the folder where you ran the command from.

To insert the file here, you can drag-and-drop it into the reply box.

 

Or you can go to:

Insert -> Image/Video/file

Then press the "upload" button - which will effectively work as "browse" button, and you can navigate to the file you want to upload.

jean-marc said:

ERROR: Recover failed. Please make sure that the correct device family is given

Did you call it with the "nrfjprog --recover -f nrf52" option?

 

Kind regards,

Håkon

[jean-marc]

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

[Håkon Alseth]

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

[jean-marc]

Thank you.

[Håkon Alseth]

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

[jean-marc]

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?

[Håkon Alseth]

Hi,

 

Given that one of the LEDs are turned on, it might indicate that there's firmware running on your device.

You can try two other options:

* Use J-Link Commander to recover the device

* Use a batch script that runs "nrfjprog --recover -f nrf52" in a loop

 

Here's a way to use J-Link Commander (search in the start meny for it):

device NRF52
si 1
speed 1000
connect

 

Here's an example of how it should look when it has been successfully found

Type "connect" to establish a target connection, '?' for help
J-Link>device nrf52
J-Link>si 1
Selecting SWD as current target interface.
J-Link>speed 1000
Selecting 1000 kHz as target interface speed
J-Link>connect
Device "NRF52" selected.


Connecting to target via SWD
InitTarget() start
InitTarget() end
Found SW-DP with ID 0x2BA01477
DPIDR: 0x2BA01477
CoreSight SoC-400 or earlier
Scanning AP map to find all available APs
AP[2]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
AP[1]: JTAG-AP (IDR: 0x02880000)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
[0][0]: E000E000 CID B105E00D PID 000BB00C SCS-M7
[0][1]: E0001000 CID B105E00D PID 003BB002 DWT
[0][2]: E0002000 CID B105E00D PID 002BB003 FPB
[0][3]: E0000000 CID B105E00D PID 003BB001 ITM
[0][4]: E0040000 CID B105900D PID 000BB9A1 TPIU
[0][5]: E0041000 CID B105900D PID 000BB925 ETM
Cortex-M4 identified.

 

 

And here is a batch-script which will run recover continuously:

 RE: nRF52832 not connected anymore after first trying to debug (Keil) 

 

Kind regards,

Håkon

[jean-marc]

Håkon Alseth you are the Boss :-D

I had to do both.

J-Link commander at connect was going thru well as listed in the example above up to the last line. But the last line rather to say "Cortex-M4 identifies it says "Could not connect".

Then I ran "nrfjprog --recover -f nrf52" and it did connect. (last time it did not work).

Now I am OK and VScode can see my board and flash.

Now i have to find out why my code or the code suggested by the course does not work.

When I flash it it goes again disconnect and then when I run connect with the J-Link commander it works, and all is fine.

In any cases I know how to recover and I appreciate your excellent help.

[Håkon Alseth]

Glad to hear that it worked out! :)

If the firmware asserts early in the process, and the default behavior is to reset, it can be problematic to recover the board, as the firmware will effectively be in a reset-loop. This could have happened in your firmware.

 

PS: I would still recommend that you get a newer DK version. It is OK to use for evaluation, but you want to use a production grade silicon for development.

 

Kind regards,

Håkon