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  • Case ID: 321153
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Cannot program nRF5340 custom board with SWD interface

Victor_H

Hello, everyone. I developed an nRF5340 PCB and in order to pursue the simplest possible circuit structure, the internal LDO mode is used for power mode. SWDCLK and SWDIO are retained for SWD download. But somehow I cannot download the program into it. In fact Visual Studio Code and JLink cannot even detect the existence of the nRF5340 chip which quite bothers me a lot.

The schematic and error messages are attached below. Look forward to reply, thx!

Fullscreen 03548.log.log Download 
[2024-Jan-25 14:27:15] [debug] --------------------------------------------------------------------------------
[2024-Jan-25 14:27:15] [debug] nrfjprog --program /home/carefreeai/Test/test_for_new/build/zephyr/merged.hex --sectorerase --verify -f NRF53 --coprocessor CP_APPLICATION --snr 1050777944 --log 
[2024-Jan-25 14:27:15] [debug] nrfjprog version 10.21.0 external
[2024-Jan-25 14:27:15] [debug] --------------------------------------------------------------------------------
[2024-Jan-25 14:27:15] [ info] Load library at /opt/nrf-command-line-tools/lib/libnrfjprogdll.so.
[2024-Jan-25 14:27:15] [ info] Library loaded, loading member functions.
[2024-Jan-25 14:27:15] [ info] Member functions succesfully loaded.
[2024-Jan-25 14:27:15] [debug] [ Client] - open
[2024-Jan-25 14:27:15] [debug] [ Client] - start
[2024-Jan-25 14:27:15] [ info] [ Client] - stdout: Jlinkarm nRF Worker ready. Handling sequence 2e5b67ca-7f8a-4f9e-b029-a6842a10361f.
[2024-Jan-25 14:27:15] [trace] [ Client] - Command open executed for 5 milliseconds with result 0
[2024-Jan-25 14:27:15] [debug] [ Client] - config
[2024-Jan-25 14:27:15] [trace] [ Client] - Command config executed for 1 milliseconds with result 0
[2024-Jan-25 14:27:15] [debug] [ Client] - enum_emu_snr
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - Logger sink registered in Segger backend logger
[2024-Jan-25 14:27:15] [debug] [  JLink] - Logger sink registered in JLink logger
[2024-Jan-25 14:27:15] [debug] [  nRF53] - open
[2024-Jan-25 14:27:15] [debug] [  nRF53] - just_check_family
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - open_dll
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - No J-Link DLL path was provided. Attempting to auto detect.
[2024-Jan-25 14:27:15] [ info] [SeggerBackend] - Load library at /opt/SEGGER/JLink/libjlinkarm.so.7.86.6.
[2024-Jan-25 14:27:15] [ info] [SeggerBackend] - Library loaded, loading member functions.
[2024-Jan-25 14:27:15] [ info] [SeggerBackend] - Member functions succesfully loaded.
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - Set batch mode
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - dll_version
[2024-Jan-25 14:27:15] [ info] [SeggerBackend] - Segger dll version 7.86.f loaded.
[2024-Jan-25 14:27:15] [trace] [ Worker] - Command open executed for 3 milliseconds with result 0
[2024-Jan-25 14:27:15] [debug] [  nRF53] - config
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - enum_emu_snr
[2024-Jan-25 14:27:15] [trace] [ Worker] - Command config executed for 1 milliseconds with result 0
[2024-Jan-25 14:27:15] [debug] [  nRF53] - enum_emu_con_info
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - enum_emu_con_info
[2024-Jan-25 14:27:15] [trace] [ Client] - Command enum_emu_con_info executed for 405 milliseconds with result 0
[2024-Jan-25 14:27:15] [debug] [ Client] - connect_to_emu_with_snr
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:15] [trace] [ Worker] - Command enum_emu_con_info executed for 405 milliseconds with result 0
[2024-Jan-25 14:27:15] [debug] [  nRF53] - connect_to_emu_with_snr
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - connect_to_emu_with_snr
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - ---just_enum_emu_snr
[2024-Jan-25 14:27:15] [debug] [SeggerBackend] - ---just_get_num_emus
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - ---just_connect_to_emu_with_snr
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - ---just_connect_to_emu_without_snr
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - Segger logging enabled.
[2024-Jan-25 14:27:16] [trace] [  JLink] - Firmware: J-Link OB-nRF5340-NordicSemi compiled Nov  7 2022 16:22:01
[2024-Jan-25 14:27:16] [trace] [  JLink] - Firmware: J-Link OB-nRF5340-NordicSemi compiled Nov  7 2022 16:22:01
[2024-Jan-25 14:27:16] [trace] [  JLink] - Hardware: V1.00
[2024-Jan-25 14:27:16] [trace] [  JLink] - S/N: 1050777944
[2024-Jan-25 14:27:16] [trace] [  JLink] - OEM: SEGGER
[2024-Jan-25 14:27:16] [trace] [  JLink] - Feature(s): RDI, FlashBP, FlashDL, JFlash, GDB
[2024-Jan-25 14:27:16] [trace] [  JLink] - USB speed mode: Full speed (12 MBit/s)
[2024-Jan-25 14:27:16] [trace] [  JLink] - TELNET listener socket opened on port 19021
[2024-Jan-25 14:27:16] [trace] [  JLink] - WEBSRV WEBSRV_Init(): Starting webserver thread(s)
[2024-Jan-25 14:27:16] [trace] [  JLink] - WEBSRV Webserver running on local port 19080
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 59.907ms returns "O.K."  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_Lock()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_ExecCommand("SetRestartOnClose = 0", ...).   
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.003ms returns 0x01  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_ExecCommand("DisableFlashDL", ...).   
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.001ms returns 0x00  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...).   
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.001ms returns 0x00  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_SetHookUnsecureDialog  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_SetHookUnsecureDialog(...)
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.005ms returns 0  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_TIF_Select(JLINKARM_TIF_SWD)  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 7.676ms returns 0x00  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_GetSpeedInfo()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - 128000000 Hz / n, n >= 64
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.003ms  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - Connected emulator supports SWD speeds up to 2000kHz
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_SetSpeed(2000)  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 2.935ms  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_GetSpeed()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.001ms returns 2000  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - SWD clock set to 2000kHz
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_GetSN()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.002ms returns 1050777944  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.003ms  
[2024-Jan-25 14:27:16] [debug] [  nRF53] - read_device_family
[2024-Jan-25 14:27:16] [trace] [ Worker] - Command connect_to_emu_with_snr executed for 1057 milliseconds with result 0
[2024-Jan-25 14:27:16] [trace] [ Client] - Command connect_to_emu_with_snr executed for 1058 milliseconds with result 0
[2024-Jan-25 14:27:16] [debug] [ Client] - read_connected_emu_snr
[2024-Jan-25 14:27:16] [trace] [ Client] - Command read_connected_emu_snr executed for 0 milliseconds with result 0
[2024-Jan-25 14:27:16] [debug] [ Client] - enable_coprocessor
[2024-Jan-25 14:27:16] [trace] [ Client] - Command enable_coprocessor executed for 0 milliseconds with result 0
[2024-Jan-25 14:27:16] [debug] [ Client] - select_coprocessor
[2024-Jan-25 14:27:16] [debug] [  nRF53] - read_connected_emu_snr
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_IsOpen()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.008ms returns 0x01  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_Lock()  
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - read_connected_emu_snr
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.003ms  
[2024-Jan-25 14:27:16] [trace] [ Worker] - Command read_connected_emu_snr executed for 0 milliseconds with result 0
[2024-Jan-25 14:27:16] [debug] [  nRF53] - enable_coprocessor
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_IsOpen()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.006ms returns 0x01  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_Lock()  
[2024-Jan-25 14:27:16] [debug] [  nRF53] - Just_enable_coprocessor
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.003ms  
[2024-Jan-25 14:27:16] [trace] [ Worker] - Command enable_coprocessor executed for 0 milliseconds with result 0
[2024-Jan-25 14:27:16] [debug] [  nRF53] - select_coprocessor
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_IsOpen()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.005ms returns 0x01  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_Lock()  
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - is_connected_to_device
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - is_connected_to_device
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_IsConnected()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 0.002ms returns FALSE  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [debug] [  nRF53] - Just_select_coprocessor
[2024-Jan-25 14:27:16] [ info] [  nRF53] - Loading new coprocessor data.
[2024-Jan-25 14:27:16] [debug] [  nRF53] - Just_load_coprocessor_data
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - set_core_data
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - Set core data:
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] -   Device ID: Cortex-M33
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] -   Expected core: 235012351
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] -   Existing Expected core: 235012351
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] -   Coprocessor: APPLICATION
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] -   AHB AP index: 0
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] -   Core base address: 4294967295
[2024-Jan-25 14:27:16] [debug] [  nRF53] - Just_readback_status
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - read_access_port_register
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - ---just_read_access_port_register
[2024-Jan-25 14:27:16] [debug] [SeggerBackend] - coresight_configure
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_GetHWStatus(...)  
[2024-Jan-25 14:27:16] [trace] [  JLink] - - 1.618ms returns 0  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:16] [trace] [  JLink] - JLINK_CORESIGHT_Configure()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 101.714ms returns 0  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - read_debug_port_idr
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - read_debug_port_register
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.470ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.132ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.967ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.931ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.032ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.921ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.260ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.807ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.972ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 4.222ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 3.798ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.227ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.070ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.402ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.803ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.258ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.799ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.035ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.900ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.075ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.070ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.445ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.012ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.944ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 3.992ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.614ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 3.072ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.414ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.605ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.261ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.911ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.056ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.996ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.944ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.015ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.215ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.826ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 4.191ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 3.399ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [error] [ Client] - Encountered error -102: Command select_coprocessor executed for 191 milliseconds with result -102
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.328ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.210ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.436ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 0.058ms  
[2024-Jan-25 14:27:17] [error] [ Worker] - An unknown error.
[2024-Jan-25 14:27:17] [trace] [ Worker] - Command select_coprocessor executed for 191 milliseconds with result -102
[2024-Jan-25 14:27:17] [debug] [  nRF53] - close
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - is_connected_to_emu
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_IsOpen()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 0.006ms returns 0x01  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_Lock()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - close
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - disconnect_from_emu
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_disconnect_from_emu
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - is_connected_to_device
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_IsConnected()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 0.003ms returns FALSE  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_is_debug_region_powered
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.672ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.296ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.167ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.338ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.784ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.426ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.976ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.485ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.911ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.260ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.851ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.003ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 5.026ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.518ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.460ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.974ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.000ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.989ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.916ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.019ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.019ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.960ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.752ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.065ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.502ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.866ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 3.474ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.178ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.145ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - ---just_abort_debug_action
[2024-Jan-25 14:27:17] [debug] [SeggerBackend] - Attempting to clear any configuration errors in debug port before closing connection. 
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.123ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.849ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.180ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.285ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 1.998ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
[2024-Jan-25 14:27:17] [trace] [  JLink] - - 2.009ms returns -1  
[2024-Jan-25 14:27:17] [trace] [  JLink] - JLINK_HasError()

Parents
  • 0

    Hi

    The J-Link doesn't seem to detect the nRF5340 at all. This sounds like an electrical issue more than an issue with your schematics specifically. How is your nRF5340 custom board powered, and how have you connected the J-Link device (programmer) to the nRF5340 exactly? My guess this is either the nRF5340 not being powered with a voltage matching the J-Link device, the J-Link not being connected with VDD, GND and the SWD pins on the nRF5340, or an issue with the soldering on the custom board, causing the nRF5340 not to run correctly and thus not being found by the J-Link device.

    Best regards,

    Simon

Reply
  • 0

    Hi

    The J-Link doesn't seem to detect the nRF5340 at all. This sounds like an electrical issue more than an issue with your schematics specifically. How is your nRF5340 custom board powered, and how have you connected the J-Link device (programmer) to the nRF5340 exactly? My guess this is either the nRF5340 not being powered with a voltage matching the J-Link device, the J-Link not being connected with VDD, GND and the SWD pins on the nRF5340, or an issue with the soldering on the custom board, causing the nRF5340 not to run correctly and thus not being found by the J-Link device.

    Best regards,

    Simon

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