https://devzone.nordicsemi.com/f/nordic-q-a/107951/cannot-flash-recover-nrf52833dk-v2-0-0I teach a class that uses the nRF52833DK, and we have had no problems working w/ dev kits up until this semester. We have several students who have ordered this DK with what appears to be a newer version of the debugging chip (v2.0.0, dated 2023.3), anden-USTelligent Community 13Thu, 01 Feb 2024 13:49:56 GMThttps://devzone.nordicsemi.com/thread/467186?ContentTypeID=1Thu, 01 Feb 2024 13:49:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5a4bf1f0-c080-4b74-abd5-86bbaf42ae95Amanda Hsieh<p>Thanks for the update. It&#39;s helpful for the further cases. <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/467041?ContentTypeID=1Wed, 31 Jan 2024 23:50:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8ad2e426-41d0-4b13-98a5-f5a5e17ab170mlp6<p>I think I figured out the problem.&nbsp; For some reason, the VEXT -&gt; nRF switch on these boards was set to ON instead of OFF.&nbsp; Changing that to OFF lets the board power in the VDD switch state and flashing was completely fine.&nbsp; Not sure why these boards arrived this way, but a simple fix to what was a perplexing problem!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/467022?ContentTypeID=1Wed, 31 Jan 2024 19:21:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:66bd26dc-e81f-4848-9cdc-af8d98960c6dmlp6<p>Unfortunately this didn&#39;t help.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/467019?ContentTypeID=1Wed, 31 Jan 2024 19:08:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84bcd440-bcc1-4ef6-a74a-66fba229eaf2Amanda Hsieh<p>Hi,&nbsp;</p> [quote user="mlp6"]I will also note that these DKs will not operate when the power switch is set to VDD; only work when set to USB.[/quote] <p>Could you try to put jumpers on P22 and P23? Please let me know if this can help or not.&nbsp;</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1706728042968v1.png" alt=" " /></p> <p>-Amanda H.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/466969?ContentTypeID=1Wed, 31 Jan 2024 14:38:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f4cd9cf9-f43f-4807-934f-62b25fa5d15emlp6<p>I will also note that these DKs will not operate when the power switch is set to VDD; only work when set to USB.&nbsp; Some students with this version of the chip that does work are able to operate their board with the VDD power switch setting.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/466968?ContentTypeID=1Wed, 31 Jan 2024 14:36:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:99166671-c091-4795-8fe7-d986cad808ebmlp6<p>Yes, using the latest version of the commandline tools (v10.24.0).&nbsp; Below is the log output:</p> <p></p> <p>[2024-Jan-31 09:35:03] [debug] --------------------------------------------------------------------------------<br />[2024-Jan-31 09:35:03] [debug] C:\Program Files\Nordic Semiconductor\nrf-command-line-tools\bin\nrfjprog.exe --recover --log <br />[2024-Jan-31 09:35:03] [debug] nrfjprog version 10.24.0 external<br />[2024-Jan-31 09:35:03] [debug] --------------------------------------------------------------------------------<br />[2024-Jan-31 09:35:03] [ info] Load library at C:\Program Files\Nordic Semiconductor\nrf-command-line-tools\bin\nrfjprog.dll.<br />[2024-Jan-31 09:35:03] [ info] Library loaded, loading member functions.<br />[2024-Jan-31 09:35:03] [ info] Member functions succesfully loaded.<br />[2024-Jan-31 09:35:04] [debug] [ Client] - open<br />[2024-Jan-31 09:35:04] [debug] [ Client] - start<br />[2024-Jan-31 09:35:04] [ info] [ Client] - stdout: Jlinkarm nRF Worker ready. Handling sequence aad3a518-e5dc-43ab-b2a6-96e4d2173f41.<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - Logger sink registered in Segger backend logger<br />[2024-Jan-31 09:35:04] [debug] [ JLink] - Logger sink registered in JLink logger<br />[2024-Jan-31 09:35:04] [debug] [ nRFXX] - open<br />[2024-Jan-31 09:35:04] [debug] [ nRFXX] - just_check_family<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - open_dll<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - No J-Link DLL path was provided. Attempting to auto detect.<br />[2024-Jan-31 09:35:04] [trace] [ Client] - Command open executed for 174 milliseconds with result 0<br />[2024-Jan-31 09:35:04] [debug] [ Client] - config<br />[2024-Jan-31 09:35:04] [trace] [ Client] - Command config executed for 15 milliseconds with result 0<br />[2024-Jan-31 09:35:04] [debug] [ Client] - enum_emu_snr<br />[2024-Jan-31 09:35:04] [ info] [SeggerBackend] - Load library at C:\Program Files\SEGGER\JLink\JLink_x64.dll.<br />[2024-Jan-31 09:35:04] [ info] [SeggerBackend] - Library loaded, loading member functions.<br />[2024-Jan-31 09:35:04] [ info] [SeggerBackend] - Member functions succesfully loaded.<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - Set batch mode<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - dll_version<br />[2024-Jan-31 09:35:04] [ info] [SeggerBackend] - Segger dll version 7.94.g loaded.<br />[2024-Jan-31 09:35:04] [trace] [ Worker] - Command open executed for 16 milliseconds with result 0<br />[2024-Jan-31 09:35:04] [debug] [ nRFXX] - config<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - enum_emu_snr<br />[2024-Jan-31 09:35:04] [trace] [ Worker] - Command config executed for 6 milliseconds with result 0<br />[2024-Jan-31 09:35:04] [debug] [ nRFXX] - enum_emu_con_info<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - enum_emu_con_info<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:04] [trace] [ Worker] - Command enum_emu_con_info executed for 13 milliseconds with result 0<br />[2024-Jan-31 09:35:04] [trace] [ Client] - Command enum_emu_con_info executed for 31 milliseconds with result 0<br />[2024-Jan-31 09:35:04] [debug] [ Client] - connect_to_emu_with_snr<br />[2024-Jan-31 09:35:04] [debug] [ nRFXX] - connect_to_emu_with_snr<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - connect_to_emu_with_snr<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - ---just_enum_emu_snr<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - ---just_get_num_emus<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - ---just_connect_to_emu_with_snr<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - ---just_connect_to_emu_without_snr<br />[2024-Jan-31 09:35:04] [debug] [SeggerBackend] - Segger logging enabled.<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - Firmware: J-Link OB-nRF5340-NordicSemi compiled Oct 30 2023 12:13:06<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - Firmware: J-Link OB-nRF5340-NordicSemi compiled Oct 30 2023 12:13:06<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - Hardware: V1.00<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - S/N: 1050666547<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - OEM: SEGGER<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - Feature(s): RDI, FlashBP, FlashDL, JFlash, GDB<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - Bootloader: 2021 May 18<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - USB speed mode: Full speed (12 MBit/s)<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - TELNET listener socket opened on port 19021<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - WEBSRV WEBSRV_Init(): Starting webserver thread(s)<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - WEBSRV Webserver running on local port 19080<br />[2024-Jan-31 09:35:04] [trace] [ JLink] - Looking for J-Link GUI Server exe at: C:\Program Files\SEGGER\JLink\JLinkGUIServer.exe <br />[2024-Jan-31 09:35:04] [trace] [ JLink] - Forking J-Link GUI Server: C:\Program Files\SEGGER\JLink\JLinkGUIServer.exe <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - J-Link GUI Server info: &quot;J-Link GUI server V7.94g &quot; <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 126.186ms returns &quot;O.K.&quot; <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_Lock() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_ExecCommand(&quot;SetRestartOnClose = 0&quot;, ...). <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.003ms returns 0x01 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_ExecCommand(&quot;DisableFlashDL&quot;, ...). <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.001ms returns 0x00 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_ExecCommand(&quot;ExcludeFlashCacheRange 0x0-0xFFFFFFFF&quot;, ...). <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.004ms returns 0x00 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_SetHookUnsecureDialog <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_SetHookUnsecureDialog(...)<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.018ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_TIF_Select(JLINKARM_TIF_SWD) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.801ms returns 0x00 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_GetSpeedInfo() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - 128000000 Hz / n, n &gt;= 64<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.024ms <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Connected emulator supports SWD speeds up to 2000kHz<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_SetSpeed(2000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.408ms <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_GetSpeed() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.008ms returns 2000 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - SWD clock set to 2000kHz<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_GetSN() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.008ms returns 1050666547 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.012ms <br />[2024-Jan-31 09:35:05] [debug] [ nRFXX] - read_device_family<br />[2024-Jan-31 09:35:05] [debug] [ nRFXX] - read_device_family<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_IsOpen() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.009ms returns 0x01 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_Lock() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - read_debug_port_idr<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - read_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_read_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - coresight_configure<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_GetHWStatus(...) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.306ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_Configure() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 101.726ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - read_debug_port_idr<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - read_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_read_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_select_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.054ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.799ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.902ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.803ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.789ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.804ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.862ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.075ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.652ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ Client] - Command connect_to_emu_with_snr executed for 314 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [ Client] - read_connected_emu_snr<br />[2024-Jan-31 09:35:05] [trace] [ Client] - Command read_connected_emu_snr executed for 0 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [ Client] - read_device_family<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.787ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - Value=0x00000000<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.826ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_select_debug_port_register<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - Value=0x00000000<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.888ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [error] [ nRFXX] - Device does not have an ARM debug port.<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.013ms <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - set_core_data<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Set core data:<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Device ID: Cortex-M4<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Expected core: 4294967295<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Existing Expected core: 4294967295<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Coprocessor: APPLICATION<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - AHB AP index: 0<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Core base address: 4294967295<br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Command connect_to_emu_with_snr executed for 301 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [ nRFXX] - read_connected_emu_snr<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_IsOpen() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.041ms returns 0x01 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_Lock() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - read_connected_emu_snr<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.006ms <br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Command read_connected_emu_snr executed for 0 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [ nRFXX] - read_device_family<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_IsOpen() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.005ms returns 0x01 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_Lock() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - read_debug_port_idr<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - read_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_read_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_select_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.954ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ Client] - Command read_device_family executed for 15 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [ Client] - select_family<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.845ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.811ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.843ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.865ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.972ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.997ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - failed<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.917ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.769ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - failed<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.904ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.639ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - Value=0x00000000<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.804ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [error] [ nRFXX] - Device does not have an ARM debug port.<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.012ms <br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Command read_device_family executed for 13 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - set_core_data<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Set core data:<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Device ID: Cortex-M4<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Expected core: 4294967295<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Existing Expected core: 4294967295<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Coprocessor: APPLICATION<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - AHB AP index: 0<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Core base address: 4294967295<br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Command select_family executed for 0 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [trace] [ Client] - Command select_family executed for 18 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [ Client] - recover<br />[2024-Jan-31 09:35:05] [error] [ Client] - Encountered error -21: Command recover executed for 2 milliseconds with result -21<br />[2024-Jan-31 09:35:05] [debug] [ nRFXX] - recover<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_IsOpen() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.026ms returns 0x01 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_Lock() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.138ms <br />[2024-Jan-31 09:35:05] [error] [ Worker] - This function cannot be executed without a known family.<br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Command recover executed for 0 milliseconds with result -21<br />[2024-Jan-31 09:35:05] [debug] [ nRFXX] - close<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_emu<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_IsOpen() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.024ms returns 0x01 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_Lock() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - close<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - disconnect_from_emu<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_disconnect_from_emu<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - is_connected_to_device<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_IsConnected() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.008ms returns FALSE <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_is_debug_region_powered<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_read_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_select_debug_port_register<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.909ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.831ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 2.176ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 5.412ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 4.449ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.986ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.520ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.848ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 2.614ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 6.625ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 2.135ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 2.716ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.336ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 3.361ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 5.925ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 3.034ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 2.120ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 3.368ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.292ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.013ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 1.002ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.934ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.846ms returns -1 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - ---just_abort_debug_action<br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F) <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.687ms returns 0 <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_HasError() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Ignore exception Failed to set Debug port SELECT register.<br />This indicates that the debug port is not available.<br />Please double-check device power supply and SWD wiring.<br />An unknown error.<br />[2024-Jan-31 09:35:05] [trace] [ JLink] - - 0.171ms <br />[2024-Jan-31 09:35:05] [trace] [ JLink] - JLINK_Close() <br />[2024-Jan-31 09:35:05] [debug] [SeggerBackend] - Segger Backend closed.<br />[2024-Jan-31 09:35:05] [debug] [ nRFXX] - nRF family DLL closed<br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Command close executed for 97 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [trace] [ Client] - Command close executed for 116 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [debug] [ Client] - terminate<br />[2024-Jan-31 09:35:05] [trace] [ Client] - Command terminate executed for 0 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Command terminate executed for 0 milliseconds with result 0<br />[2024-Jan-31 09:35:05] [trace] [ Worker] - Executed 10 commands for 446 milliseconds<br />[2024-Jan-31 09:35:05] [debug] [ Client] - Worker process exited with code: 0<br />[2024-Jan-31 09:35:05] [debug] [ Client] - Worker process exited with code: 0<br />[2024-Jan-31 09:35:05] [debug] [ Client] - Child process terminated with result 0<br />[2024-Jan-31 09:35:05] [trace] [ Client] - Executed 10 commands for 685 milliseconds<br />[2024-Jan-31 09:35:05] [debug] [ Client] - terminate</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/466964?ContentTypeID=1Wed, 31 Jan 2024 14:24:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:755e19e2-eabb-479f-9d7b-d1b173d2b855Amanda Hsieh<p>Hi,&nbsp;</p> <p>Could you try the latest version of the <a href="https://www.nordicsemi.com/Products/Development-tools/nRF-Command-Line-Tools/Download?lang=en#infotabs">nRF Command Line Tools</a>?&nbsp;If it cannot help, please provide the log with &quot;<span>nrfjprog --recover --log</span>&quot;</p> <p>Regards,<br />Amanda H.</p><div style="clear:both;"></div>