J-link OB cannot find nRF52811 on custom board

[bardia3000]

Hello, I'm working on a custom board, and I use JLink OB as programmer. Whenever I try to connect to nRF52811 on the board, this happens:

I check the connections, everything looks fine, Could It be because of the firmware of my Jlink OB?

[Sigurd]

Hi,

Whenever I try to connect to nRF52811 on the board

Looking at the screenshot attached, you seem to be using a project that is configured to be used for the nRF52840.

Please try the pca10056e project instead. For the ble_app_blinky project, see the project in the folder SDK_folder\examples\ble_peripheral\ble_app_blinky\pca10056e\s112\ses

You might find the Developing for nRF52811 user guide useful. See this link: infocenter.nordicsemi.com/.../nrf52811_user_guide.html

 

[bardia3000]

Unfortunately it is the same as before.

[bardia3000]

No I can't recover the device.

nRF52811 is powering with 1v8, by the way I checked the programmer, It can program a nrf52832 (powered with 1v8) on another board correctly!

I also tried Segger J-Flash (and I change the programmer device): Here is the result of Log:

Connecting ...
- Connecting via USB to probe/ programmer device 0
- Probe/ Programmer firmware: J-Link V9 compiled Jun 2 2222 22:22:22
- Device "NRF52811_XXAA" selected.
- Target interface speed: 4000 kHz (Fixed)
- VTarget = 1.790V
- InitTarget() start
- InitTarget() end
- InitTarget() start
- InitTarget() end
- ERROR: Failed to connect.
Could not establish a connection to target.

and after I changed the speed to auto mode:

Connecting ...
- Connecting via USB to probe/ programmer device 0
- Probe/ Programmer firmware: J-Link V9 compiled Jun 2 2222 22:22:22
- Device "NRF52811_XXAA" selected.
- InitTarget() start
- InitTarget() end
- InitTarget() start
- InitTarget() end
- Target interface speed: 200 kHz (Auto)
- VTarget = 1.815V
- InitTarget() start
- InitTarget() end
- InitTarget() start
- InitTarget() end
- ERROR: Failed to connect.
Could not establish a connection to target.

[bardia3000]

I also run "it as administrator" with J-link OB:

 

and this is the log file:

Fullscreen 2211.log.log Download

2020-Jul-14 09:42:48  --------------------------------------------------------------------------------
2020-Jul-14 09:42:48  nrfjprog -f nrf52 --recover --log 
2020-Jul-14 09:42:48  nrfjprog version 10.9.0 
2020-Jul-14 09:42:48  --------------------------------------------------------------------------------
2020-Jul-14 09:42:48  nRF_logger_open
2020-Jul-14 09:42:48  nRF_logger_open:	nRFJProg logger opened to callback at address 0X7FF68AC733C0
2020-Jul-14 09:42:48  nRF_open_dll
2020-Jul-14 09:42:48  nRF_open_dll:	Load library at "C:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\JLINKARM_NRF52_NRFJPROG.dll".

2020-Jul-14 09:42:48  . nRF52_logger_open
2020-Jul-14 09:42:48  . nRF52_logger_open:	nRFJProg logger opened to callback at address 0X7FFEE7F2E520
2020-Jul-14 09:42:48  . nRF52_open
2020-Jul-14 09:42:48  . . Segger_logger_open
2020-Jul-14 09:42:48  . . Segger_logger_open:	nRFJProg logger opened to callback at address 0X7FFEA5628F00
2020-Jul-14 09:42:48  . . Segger_open_dll
2020-Jul-14 09:42:48  . . Segger_open_dll:	No J-Link DLL path was provided. Attempting to auto detect.

2020-Jul-14 09:42:48  . . Segger_open_dll:	Load library at "C:\\Program Files (x86)\\SEGGER\\JLink\\JLink_x64.dll".

2020-Jul-14 09:42:48  . . . Segger_dll_version
2020-Jul-14 09:42:48  nRF_enum_emu_snr
2020-Jul-14 09:42:48  . nRF52_enum_emu_snr
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu
2020-Jul-14 09:42:48  . . Segger_enum_emu_snr
2020-Jul-14 09:42:48  . . . Segger_enum_emu_snr
2020-Jul-14 09:42:48  . . . . Segger_get_num_emus
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu
2020-Jul-14 09:42:48  nRF_connect_to_emu_with_snr
2020-Jul-14 09:42:48  . nRF52_connect_to_emu_with_snr
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu
2020-Jul-14 09:42:48  . . Segger_connect_to_emu_with_snr
2020-Jul-14 09:42:48  . . . Segger_is_connected_to_emu
2020-Jul-14 09:42:48  . . . Segger_enum_emu_snr
2020-Jul-14 09:42:48  . . . . Segger_get_num_emus
2020-Jul-14 09:42:48  . . . Segger_connect_to_emu_with_snr
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	Segger logging enabled with callback at 0x140731673258320.

2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:034.836   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:040.581   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Hardware: V7.00
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:044.140   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	S/N: 20090928
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:047.711   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	OEM: SEGGER
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:051.886   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Feature(s): RDI,FlashDL,FlashBP,JFlash,GDB
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:056.481   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	TELNET listener socket opened on port 19021
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:059.831   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	WEBSRV Starting webserver
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:062.929   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	WEBSRV Webserver running on local port 19080
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:065.916 
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 35.798ms returns O.K.  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:069.130 
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_Lock()  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:072.217   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_GetHWStatus(...)  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:075.463   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 4.781ms returns 0x00  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:078.537   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("SetRestartOnClose = 0", ...).   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:081.667   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.360ms returns 0x01  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:084.439   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("DisableFlashDL", ...).   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:087.531   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.389ms returns 0x00  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:090.283   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...).   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:093.068   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.370ms returns 0x00  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:095.802     
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_SetHookUnsecureDialog(...)
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:098.577   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 4.167ms returns 0  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:101.416   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_TIF_Select(JLINKARM_TIF_SWD)  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:104.830   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 4.925ms returns 0x00  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:107.878   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_SetSpeed(2000)  
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T0960 000:117.521   
2020-Jul-14 09:42:48  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 11.138ms  
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	T0960 000:122.384   
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	JLINK_ExecCommand("CORESIGHT_SetIndexAHBAPToUse = 0", ...).   
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	T0960 000:125.299   
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	- 1.408ms returns 0x00  
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	T0960 000:128.120   
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	JLINK_ExecCommand("device = nRF52", ...).   
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	T0960 000:138.382     
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	XML file found at: C:\Program Files (x86)\SEGGER\JLink\JLinkDevices.xml 
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	T0960 000:142.073     
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	C:\Program Files (x86)\SEGGER\JLink\JLinkDevices.xml evaluated successfully. 
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	T0960 000:190.854     
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	Device "NRF52" selected.
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	T0960 000:196.819   
2020-Jul-14 09:42:48  . . . . . Segger_load_core_data:	JLink INFO	- 67.355ms returns 0x00  
2020-Jul-14 09:42:48  . . Segger_read_debug_port_idr
2020-Jul-14 09:42:48  . . . Segger_read_debug_port_register
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register
2020-Jul-14 09:42:48  . . . . . Segger_coresight_configure
2020-Jul-14 09:42:48  . . . . . Segger_coresight_configure:	JLink INFO	T0960 000:205.716   
2020-Jul-14 09:42:48  . . . . . Segger_coresight_configure:	JLink INFO	JLINK_CORESIGHT_Configure()  
2020-Jul-14 09:42:48  . . . . . Segger_coresight_configure:	JLink INFO	T0960 000:210.634   
2020-Jul-14 09:42:48  . . . . . Segger_coresight_configure:	JLink INFO	- 6.649ms returns 0  
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register:	JLink INFO	T0960 000:213.808   
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register:	JLink INFO	JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00)  
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register:	JLink INFO	T0960 000:217.104     
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register:	JLink INFO	failed
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register:	JLink INFO	T0960 000:220.181   
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register:	JLink INFO	- 7.832ms returns -1  
2020-Jul-14 09:42:48  . . . . Segger_read_debug_port_register:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:42:48  . . . . . Segger_abort_debug_action
2020-Jul-14 09:42:48  . . . . . Segger_abort_debug_action:	Attempting to clear any configuration errors in debug port before closing connection. 

2020-Jul-14 09:42:48  . . . . . Segger_abort_debug_action:	JLink INFO	T0960 000:228.545   
2020-Jul-14 09:42:48  . . . . . Segger_abort_debug_action:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
2020-Jul-14 09:42:48  . . . . . Segger_abort_debug_action:	JLink INFO	T0960 000:231.819   
2020-Jul-14 09:42:48  . . . . . Segger_abort_debug_action:	JLink INFO	- 4.831ms returns -1  
2020-Jul-14 09:42:48  . . . . . Segger_abort_debug_action:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:42:48  . . :	JLink INFO	T0960 000:236.521 
2020-Jul-14 09:42:48  . . :	JLink INFO	JLINK_Unlock()  
2020-Jul-14 09:42:48  nRF_close_dll
2020-Jul-14 09:42:48  . nRF52_close
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu:	JLink INFO	T0960 000:245.394 
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu:	JLink INFO	JLINK_IsOpen()  
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu:	JLink INFO	T0960 000:248.423 
2020-Jul-14 09:42:48  . . Segger_is_connected_to_emu:	JLink INFO	- 4.517ms returns 0x01  
2020-Jul-14 09:42:48  . . :	JLink INFO	T0960 000:251.925 
2020-Jul-14 09:42:48  . . :	JLink INFO	JLINK_Lock()  
2020-Jul-14 09:42:48  . . Segger_close
2020-Jul-14 09:42:48  . . . Segger_disconnect_from_emu
2020-Jul-14 09:42:48  . . . . Segger_disconnect_from_emu
2020-Jul-14 09:42:48  . . . . . Segger_is_connected_to_device
2020-Jul-14 09:42:48  . . . . . Segger_is_connected_to_device:	JLink INFO	T0960 000:261.046   
2020-Jul-14 09:42:48  . . . . . Segger_is_connected_to_device:	JLink INFO	JLINK_IsConnected()  
2020-Jul-14 09:42:48  . . . . . Segger_is_connected_to_device:	JLink INFO	T0960 000:264.001   
2020-Jul-14 09:42:48  . . . . . Segger_is_connected_to_device:	JLink INFO	- 4.433ms returns FALSE  
2020-Jul-14 09:42:48  . . . . . Segger_is_debug_region_powered
2020-Jul-14 09:42:48  . . . . . . Segger_read_debug_port_register
2020-Jul-14 09:42:48  . . . . . . . Segger_write_debug_port_register
2020-Jul-14 09:42:48  . . . . . . . Segger_write_debug_port_register:	JLink INFO	T0960 000:271.479   
2020-Jul-14 09:42:48  . . . . . . . Segger_write_debug_port_register:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
2020-Jul-14 09:42:48  . . . . . . . Segger_write_debug_port_register:	JLink INFO	T0960 000:274.797   
2020-Jul-14 09:42:48  . . . . . . . Segger_write_debug_port_register:	JLink INFO	- 4.912ms returns -1  
2020-Jul-14 09:42:48  . . . . . . . Segger_write_debug_port_register:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:42:48  . . . . . . . . Segger_abort_debug_action
2020-Jul-14 09:42:48  . . . . . . . . Segger_abort_debug_action:	Attempting to clear any configuration errors in debug port before closing connection. 

2020-Jul-14 09:42:48  . . . . . . . . Segger_abort_debug_action:	JLink INFO	T0960 000:282.579   
2020-Jul-14 09:42:48  . . . . . . . . Segger_abort_debug_action:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
2020-Jul-14 09:42:48  . . . . . . . . Segger_abort_debug_action:	JLink INFO	T0960 000:285.920   
2020-Jul-14 09:42:48  . . . . . . . . Segger_abort_debug_action:	JLink INFO	- 4.866ms returns -1  
2020-Jul-14 09:42:48  . . . . . . . . Segger_abort_debug_action:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:42:48  . . . . Segger_disconnect_from_emu:	JLink INFO	T0960 000:290.535 
2020-Jul-14 09:42:48  . . . . Segger_disconnect_from_emu:	JLink INFO	JLINK_Unlock()  
2020-Jul-14 09:42:48  . . . . Segger_disconnect_from_emu:	JLink INFO	T0960 000:300.588 
2020-Jul-14 09:42:48  . . . . Segger_disconnect_from_emu:	JLink INFO	JLINK_Close()  
2020-Jul-14 09:42:48  . . Segger_close:	Freeing Library.

2020-Jul-14 09:42:48  nRF_close_dll:	Freeing Library.

2020-Jul-14 09:47:44  --------------------------------------------------------------------------------
2020-Jul-14 09:47:44  nrfjprog -f nrf52 --recover --log 
2020-Jul-14 09:47:44  nrfjprog version 10.9.0 
2020-Jul-14 09:47:44  --------------------------------------------------------------------------------
2020-Jul-14 09:47:44  nRF_logger_open
2020-Jul-14 09:47:44  nRF_logger_open:	nRFJProg logger opened to callback at address 0X7FF68AC733C0
2020-Jul-14 09:47:44  nRF_open_dll
2020-Jul-14 09:47:44  nRF_open_dll:	Load library at "C:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\JLINKARM_NRF52_NRFJPROG.dll".

2020-Jul-14 09:47:44  . nRF52_logger_open
2020-Jul-14 09:47:44  . nRF52_logger_open:	nRFJProg logger opened to callback at address 0X7FFF1059E520
2020-Jul-14 09:47:44  . nRF52_open
2020-Jul-14 09:47:44  . . Segger_logger_open
2020-Jul-14 09:47:44  . . Segger_logger_open:	nRFJProg logger opened to callback at address 0X7FFEF22D8F00
2020-Jul-14 09:47:44  . . Segger_open_dll
2020-Jul-14 09:47:44  . . Segger_open_dll:	No J-Link DLL path was provided. Attempting to auto detect.

2020-Jul-14 09:47:44  . . Segger_open_dll:	Load library at "C:\\Program Files (x86)\\SEGGER\\JLink\\JLink_x64.dll".

2020-Jul-14 09:47:44  . . . Segger_dll_version
2020-Jul-14 09:47:44  nRF_enum_emu_snr
2020-Jul-14 09:47:44  . nRF52_enum_emu_snr
2020-Jul-14 09:47:44  . . Segger_is_connected_to_emu
2020-Jul-14 09:47:44  . . Segger_enum_emu_snr
2020-Jul-14 09:47:44  . . . Segger_enum_emu_snr
2020-Jul-14 09:47:44  . . . . Segger_get_num_emus
2020-Jul-14 09:47:44  . . Segger_is_connected_to_emu
2020-Jul-14 09:47:44  nRF_connect_to_emu_with_snr
2020-Jul-14 09:47:44  . nRF52_connect_to_emu_with_snr
2020-Jul-14 09:47:44  . . Segger_is_connected_to_emu
2020-Jul-14 09:47:44  . . Segger_connect_to_emu_with_snr
2020-Jul-14 09:47:44  . . . Segger_is_connected_to_emu
2020-Jul-14 09:47:44  . . . Segger_enum_emu_snr
2020-Jul-14 09:47:44  . . . . Segger_get_num_emus
2020-Jul-14 09:47:44  . . . Segger_connect_to_emu_with_snr
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	Segger logging enabled with callback at 0x140732961630544.

2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:042.625   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:048.581   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Hardware: V7.00
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:053.116   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	S/N: 20090928
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:057.437   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	OEM: SEGGER
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:061.155   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Feature(s): RDI,FlashDL,FlashBP,JFlash,GDB
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:066.684   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	TELNET listener socket opened on port 19021
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:071.803   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	WEBSRV Starting webserver
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:075.535   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	WEBSRV Webserver running on local port 19080
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:078.887 
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 40.881ms returns O.K.  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:082.282 
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_Lock()  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:085.846   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_GetHWStatus(...)  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:089.967   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 5.848ms returns 0x00  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:093.463   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("SetRestartOnClose = 0", ...).   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:096.938   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.693ms returns 0x01  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:101.062   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("DisableFlashDL", ...).   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:104.849   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.763ms returns 0x00  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:108.410   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...).   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:111.817   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.763ms returns 0x00  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:115.428     
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_SetHookUnsecureDialog(...)
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:118.996   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 5.276ms returns 0  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:122.447   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_TIF_Select(JLINKARM_TIF_SWD)  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:126.429   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 5.748ms returns 0x00  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:130.071   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_SetSpeed(2000)  
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T35A4 000:133.892   
2020-Jul-14 09:47:44  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 5.586ms  
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	T35A4 000:139.242   
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	JLINK_ExecCommand("CORESIGHT_SetIndexAHBAPToUse = 0", ...).   
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	T35A4 000:142.643   
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	- 1.679ms returns 0x00  
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	T35A4 000:146.014   
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	JLINK_ExecCommand("device = nRF52", ...).   
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	T35A4 000:158.853     
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	XML file found at: C:\Program Files (x86)\SEGGER\JLink\JLinkDevices.xml 
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	T35A4 000:164.160     
2020-Jul-14 09:47:44  . . . . . Segger_load_core_data:	JLink INFO	C:\Program Files (x86)\SEGGER\JLink\JLinkDevices.xml evaluated successfully. 
2020-Jul-14 09:47:45  . . . . . Segger_load_core_data:	JLink INFO	T35A4 000:230.682     
2020-Jul-14 09:47:45  . . . . . Segger_load_core_data:	JLink INFO	Device "NRF52" selected.
2020-Jul-14 09:47:45  . . . . . Segger_load_core_data:	JLink INFO	T35A4 000:238.740   
2020-Jul-14 09:47:45  . . . . . Segger_load_core_data:	JLink INFO	- 90.955ms returns 0x00  
2020-Jul-14 09:47:45  . . Segger_read_debug_port_idr
2020-Jul-14 09:47:45  . . . Segger_read_debug_port_register
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register
2020-Jul-14 09:47:45  . . . . . Segger_coresight_configure
2020-Jul-14 09:47:45  . . . . . Segger_coresight_configure:	JLink INFO	T35A4 000:250.902   
2020-Jul-14 09:47:45  . . . . . Segger_coresight_configure:	JLink INFO	JLINK_CORESIGHT_Configure()  
2020-Jul-14 09:47:45  . . . . . Segger_coresight_configure:	JLink INFO	T35A4 000:256.411   
2020-Jul-14 09:47:45  . . . . . Segger_coresight_configure:	JLink INFO	- 7.199ms returns 0  
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register:	JLink INFO	T35A4 000:259.864   
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register:	JLink INFO	JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00)  
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register:	JLink INFO	T35A4 000:263.509     
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register:	JLink INFO	failed
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register:	JLink INFO	T35A4 000:266.811   
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register:	JLink INFO	- 8.645ms returns -1  
2020-Jul-14 09:47:45  . . . . Segger_read_debug_port_register:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:47:45  . . . . . Segger_abort_debug_action
2020-Jul-14 09:47:45  . . . . . Segger_abort_debug_action:	Attempting to clear any configuration errors in debug port before closing connection. 

2020-Jul-14 09:47:45  . . . . . Segger_abort_debug_action:	JLink INFO	T35A4 000:275.181   
2020-Jul-14 09:47:45  . . . . . Segger_abort_debug_action:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
2020-Jul-14 09:47:45  . . . . . Segger_abort_debug_action:	JLink INFO	T35A4 000:278.732   
2020-Jul-14 09:47:45  . . . . . Segger_abort_debug_action:	JLink INFO	- 5.224ms returns -1  
2020-Jul-14 09:47:45  . . . . . Segger_abort_debug_action:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:47:45  . . :	JLink INFO	T35A4 000:283.692 
2020-Jul-14 09:47:45  . . :	JLink INFO	JLINK_Unlock()  
2020-Jul-14 09:47:45  nRF_close_dll
2020-Jul-14 09:47:45  . nRF52_close
2020-Jul-14 09:47:45  . . Segger_is_connected_to_emu
2020-Jul-14 09:47:45  . . Segger_is_connected_to_emu:	JLink INFO	T35A4 000:292.276 
2020-Jul-14 09:47:45  . . Segger_is_connected_to_emu:	JLink INFO	JLINK_IsOpen()  
2020-Jul-14 09:47:45  . . Segger_is_connected_to_emu:	JLink INFO	T35A4 000:295.494 
2020-Jul-14 09:47:45  . . Segger_is_connected_to_emu:	JLink INFO	- 4.833ms returns 0x01  
2020-Jul-14 09:47:45  . . :	JLink INFO	T35A4 000:298.732 
2020-Jul-14 09:47:45  . . :	JLink INFO	JLINK_Lock()  
2020-Jul-14 09:47:45  . . Segger_close
2020-Jul-14 09:47:45  . . . Segger_disconnect_from_emu
2020-Jul-14 09:47:45  . . . . Segger_disconnect_from_emu
2020-Jul-14 09:47:45  . . . . . Segger_is_connected_to_device
2020-Jul-14 09:47:45  . . . . . Segger_is_connected_to_device:	JLink INFO	T35A4 000:308.559   
2020-Jul-14 09:47:45  . . . . . Segger_is_connected_to_device:	JLink INFO	JLINK_IsConnected()  
2020-Jul-14 09:47:45  . . . . . Segger_is_connected_to_device:	JLink INFO	T35A4 000:311.768   
2020-Jul-14 09:47:45  . . . . . Segger_is_connected_to_device:	JLink INFO	- 5.051ms returns FALSE  
2020-Jul-14 09:47:45  . . . . . Segger_is_debug_region_powered
2020-Jul-14 09:47:45  . . . . . . Segger_read_debug_port_register
2020-Jul-14 09:47:45  . . . . . . . Segger_write_debug_port_register
2020-Jul-14 09:47:45  . . . . . . . Segger_write_debug_port_register:	JLink INFO	T35A4 000:320.238   
2020-Jul-14 09:47:45  . . . . . . . Segger_write_debug_port_register:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
2020-Jul-14 09:47:45  . . . . . . . Segger_write_debug_port_register:	JLink INFO	T35A4 000:323.663   
2020-Jul-14 09:47:45  . . . . . . . Segger_write_debug_port_register:	JLink INFO	- 5.074ms returns -1  
2020-Jul-14 09:47:45  . . . . . . . Segger_write_debug_port_register:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:47:45  . . . . . . . . Segger_abort_debug_action
2020-Jul-14 09:47:45  . . . . . . . . Segger_abort_debug_action:	Attempting to clear any configuration errors in debug port before closing connection. 

2020-Jul-14 09:47:45  . . . . . . . . Segger_abort_debug_action:	JLink INFO	T35A4 000:331.713   
2020-Jul-14 09:47:45  . . . . . . . . Segger_abort_debug_action:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
2020-Jul-14 09:47:45  . . . . . . . . Segger_abort_debug_action:	JLink INFO	T35A4 000:335.835   
2020-Jul-14 09:47:45  . . . . . . . . Segger_abort_debug_action:	JLink INFO	- 5.836ms returns -1  
2020-Jul-14 09:47:45  . . . . . . . . Segger_abort_debug_action:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 09:47:45  . . . . Segger_disconnect_from_emu:	JLink INFO	T35A4 000:340.840 
2020-Jul-14 09:47:45  . . . . Segger_disconnect_from_emu:	JLink INFO	JLINK_Unlock()  
2020-Jul-14 09:47:45  . . . . Segger_disconnect_from_emu:	JLink INFO	T35A4 000:365.969 
2020-Jul-14 09:47:45  . . . . Segger_disconnect_from_emu:	JLink INFO	JLINK_Close()  
2020-Jul-14 09:47:45  . . Segger_close:	Freeing Library.

2020-Jul-14 09:47:45  nRF_close_dll:	Freeing Library.

2020-Jul-14 16:48:05  --------------------------------------------------------------------------------
2020-Jul-14 16:48:05  nrfjprog -f nrf52 --recover --log 
2020-Jul-14 16:48:05  nrfjprog version 10.9.0 
2020-Jul-14 16:48:05  --------------------------------------------------------------------------------
2020-Jul-14 16:48:05  nRF_logger_open
2020-Jul-14 16:48:05  nRF_logger_open:	nRFJProg logger opened to callback at address 0X7FF68AC733C0
2020-Jul-14 16:48:05  nRF_open_dll
2020-Jul-14 16:48:05  nRF_open_dll:	Load library at "C:\\Program Files\\Nordic Semiconductor\\nrf-command-line-tools\\bin\\JLINKARM_NRF52_NRFJPROG.dll".

2020-Jul-14 16:48:05  . nRF52_logger_open
2020-Jul-14 16:48:05  . nRF52_logger_open:	nRFJProg logger opened to callback at address 0X7FFF0FA0E520
2020-Jul-14 16:48:05  . nRF52_open
2020-Jul-14 16:48:05  . . Segger_logger_open
2020-Jul-14 16:48:05  . . Segger_logger_open:	nRFJProg logger opened to callback at address 0X7FFE984F8F00
2020-Jul-14 16:48:05  . . Segger_open_dll
2020-Jul-14 16:48:05  . . Segger_open_dll:	No J-Link DLL path was provided. Attempting to auto detect.

2020-Jul-14 16:48:05  . . Segger_open_dll:	Load library at "C:\\Program Files (x86)\\SEGGER\\JLink\\JLink_x64.dll".

2020-Jul-14 16:48:05  . . . Segger_dll_version
2020-Jul-14 16:48:05  nRF_enum_emu_snr
2020-Jul-14 16:48:05  . nRF52_enum_emu_snr
2020-Jul-14 16:48:05  . . Segger_is_connected_to_emu
2020-Jul-14 16:48:05  . . Segger_enum_emu_snr
2020-Jul-14 16:48:05  . . . Segger_enum_emu_snr
2020-Jul-14 16:48:05  . . . . Segger_get_num_emus
2020-Jul-14 16:48:05  . . Segger_is_connected_to_emu
2020-Jul-14 16:48:05  nRF_connect_to_emu_with_snr
2020-Jul-14 16:48:05  . nRF52_connect_to_emu_with_snr
2020-Jul-14 16:48:05  . . Segger_is_connected_to_emu
2020-Jul-14 16:48:05  . . Segger_connect_to_emu_with_snr
2020-Jul-14 16:48:05  . . . Segger_is_connected_to_emu
2020-Jul-14 16:48:05  . . . Segger_enum_emu_snr
2020-Jul-14 16:48:05  . . . . Segger_get_num_emus
2020-Jul-14 16:48:05  . . . Segger_connect_to_emu_with_snr
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	Segger logging enabled with callback at 0x140731453909328.

2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:042.723   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:048.744   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Hardware: V7.00
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:053.952   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	S/N: 20090928
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:058.503   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	OEM: SEGGER
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:063.096   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	Feature(s): RDI,FlashDL,FlashBP,JFlash,GDB
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:068.314   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	TELNET listener socket opened on port 19021
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:072.369   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	WEBSRV Starting webserver
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:076.228   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	WEBSRV Webserver running on local port 19080
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:079.643 
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 42.005ms returns O.K.  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:083.145 
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_Lock()  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:086.540   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_GetHWStatus(...)  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:090.052   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 5.703ms returns 0x00  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:094.307   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("SetRestartOnClose = 0", ...).   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:097.877   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 2.042ms returns 0x01  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:101.839   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("DisableFlashDL", ...).   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:105.473   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.780ms returns 0x00  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:109.218   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...).   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:112.825   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 1.738ms returns 0x00  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:117.072     
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_SetHookUnsecureDialog(...)
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:120.805   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 5.462ms returns 0  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:124.380   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_TIF_Select(JLINKARM_TIF_SWD)  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:128.679   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 6.114ms returns 0x00  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:132.295   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	JLINK_SetSpeed(2000)  
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	T47D8 000:136.010   
2020-Jul-14 16:48:05  . . . . Segger_connect_to_emu_without_snr:	JLink INFO	- 5.571ms  
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	T47D8 000:141.530   
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	JLINK_ExecCommand("CORESIGHT_SetIndexAHBAPToUse = 0", ...).   
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	T47D8 000:145.141   
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	- 1.854ms returns 0x00  
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	T47D8 000:148.794   
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	JLINK_ExecCommand("device = nRF52", ...).   
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	T47D8 000:160.186     
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	XML file found at: C:\Program Files (x86)\SEGGER\JLink\JLinkDevices.xml 
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	T47D8 000:165.233     
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	C:\Program Files (x86)\SEGGER\JLink\JLinkDevices.xml evaluated successfully. 
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	T47D8 000:212.794     
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	Device "NRF52" selected.
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	T47D8 000:219.545   
2020-Jul-14 16:48:05  . . . . . Segger_load_core_data:	JLink INFO	- 68.684ms returns 0x00  
2020-Jul-14 16:48:05  . . Segger_read_debug_port_idr
2020-Jul-14 16:48:05  . . . Segger_read_debug_port_register
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register
2020-Jul-14 16:48:05  . . . . . Segger_coresight_configure
2020-Jul-14 16:48:05  . . . . . Segger_coresight_configure:	JLink INFO	T47D8 000:233.012   
2020-Jul-14 16:48:05  . . . . . Segger_coresight_configure:	JLink INFO	JLINK_CORESIGHT_Configure()  
2020-Jul-14 16:48:05  . . . . . Segger_coresight_configure:	JLink INFO	T47D8 000:238.669   
2020-Jul-14 16:48:05  . . . . . Segger_coresight_configure:	JLink INFO	- 7.811ms returns 0  
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register:	JLink INFO	T47D8 000:243.178   
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register:	JLink INFO	JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00)  
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register:	JLink INFO	T47D8 000:247.001     
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register:	JLink INFO	failed
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register:	JLink INFO	T47D8 000:250.882   
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register:	JLink INFO	- 9.432ms returns -1  
2020-Jul-14 16:48:05  . . . . Segger_read_debug_port_register:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 16:48:05  . . . . . Segger_abort_debug_action
2020-Jul-14 16:48:05  . . . . . Segger_abort_debug_action:	Attempting to clear any configuration errors in debug port before closing connection. 

2020-Jul-14 16:48:05  . . . . . Segger_abort_debug_action:	JLink INFO	T47D8 000:260.745   
2020-Jul-14 16:48:05  . . . . . Segger_abort_debug_action:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
2020-Jul-14 16:48:05  . . . . . Segger_abort_debug_action:	JLink INFO	T47D8 000:264.970   
2020-Jul-14 16:48:05  . . . . . Segger_abort_debug_action:	JLink INFO	- 6.227ms returns -1  
2020-Jul-14 16:48:05  . . . . . Segger_abort_debug_action:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 16:48:05  . . :	JLink INFO	T47D8 000:271.475 
2020-Jul-14 16:48:05  . . :	JLink INFO	JLINK_Unlock()  
2020-Jul-14 16:48:05  nRF_close_dll
2020-Jul-14 16:48:05  . nRF52_close
2020-Jul-14 16:48:06  . . Segger_is_connected_to_emu
2020-Jul-14 16:48:06  . . Segger_is_connected_to_emu:	JLink INFO	T47D8 000:281.021 
2020-Jul-14 16:48:06  . . Segger_is_connected_to_emu:	JLink INFO	JLINK_IsOpen()  
2020-Jul-14 16:48:06  . . Segger_is_connected_to_emu:	JLink INFO	T47D8 000:284.683 
2020-Jul-14 16:48:06  . . Segger_is_connected_to_emu:	JLink INFO	- 5.790ms returns 0x01  
2020-Jul-14 16:48:06  . . :	JLink INFO	T47D8 000:288.608 
2020-Jul-14 16:48:06  . . :	JLink INFO	JLINK_Lock()  
2020-Jul-14 16:48:06  . . Segger_close
2020-Jul-14 16:48:06  . . . Segger_disconnect_from_emu
2020-Jul-14 16:48:06  . . . . Segger_disconnect_from_emu
2020-Jul-14 16:48:06  . . . . . Segger_is_connected_to_device
2020-Jul-14 16:48:06  . . . . . Segger_is_connected_to_device:	JLink INFO	T47D8 000:300.686   
2020-Jul-14 16:48:06  . . . . . Segger_is_connected_to_device:	JLink INFO	JLINK_IsConnected()  
2020-Jul-14 16:48:06  . . . . . Segger_is_connected_to_device:	JLink INFO	T47D8 000:304.600   
2020-Jul-14 16:48:06  . . . . . Segger_is_connected_to_device:	JLink INFO	- 5.694ms returns FALSE  
2020-Jul-14 16:48:06  . . . . . Segger_is_debug_region_powered
2020-Jul-14 16:48:06  . . . . . . Segger_read_debug_port_register
2020-Jul-14 16:48:06  . . . . . . . Segger_write_debug_port_register
2020-Jul-14 16:48:06  . . . . . . . Segger_write_debug_port_register:	JLink INFO	T47D8 000:313.808   
2020-Jul-14 16:48:06  . . . . . . . Segger_write_debug_port_register:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)  
2020-Jul-14 16:48:06  . . . . . . . Segger_write_debug_port_register:	JLink INFO	T47D8 000:317.345   
2020-Jul-14 16:48:06  . . . . . . . Segger_write_debug_port_register:	JLink INFO	- 5.232ms returns -1  
2020-Jul-14 16:48:06  . . . . . . . Segger_write_debug_port_register:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 16:48:06  . . . . . . . . Segger_abort_debug_action
2020-Jul-14 16:48:06  . . . . . . . . Segger_abort_debug_action:	Attempting to clear any configuration errors in debug port before closing connection. 

2020-Jul-14 16:48:06  . . . . . . . . Segger_abort_debug_action:	JLink INFO	T47D8 000:325.812   
2020-Jul-14 16:48:06  . . . . . . . . Segger_abort_debug_action:	JLink INFO	JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x00, 0x0000001F)  
2020-Jul-14 16:48:06  . . . . . . . . Segger_abort_debug_action:	JLink INFO	T47D8 000:329.962   
2020-Jul-14 16:48:06  . . . . . . . . Segger_abort_debug_action:	JLink INFO	- 5.829ms returns -1  
2020-Jul-14 16:48:06  . . . . . . . . Segger_abort_debug_action:	JLinkARM.dll reported "-1", an unknown error.

2020-Jul-14 16:48:06  . . . . Segger_disconnect_from_emu:	JLink INFO	T47D8 000:334.923 
2020-Jul-14 16:48:06  . . . . Segger_disconnect_from_emu:	JLink INFO	JLINK_Unlock()  
2020-Jul-14 16:48:06  . . . . Segger_disconnect_from_emu:	JLink INFO	T47D8 000:355.819 
2020-Jul-14 16:48:06  . . . . Segger_disconnect_from_emu:	JLink INFO	JLINK_Close()  
2020-Jul-14 16:48:06  . . Segger_close:	Freeing Library.

2020-Jul-14 16:48:06  nRF_close_dll:	Freeing Library.

[bardia3000]

By the way, I checked voltage on all pins, It is a bit strange that P0.21/nRST is Low( while I used pull up resistor on it) and also I've never program it, So this GPIO shouldn't be configured as an active-low Reset!

Is it normal for the P0.21/nRST to be Low in this situation?

[bardia3000]

Sorry Sigurd, Is it possible to answer me?

[Sigurd]

Hi,

bardia3000 said:

Is it normal for the P0.21/nRST to be Low in this situation?

No, in this situation the pin should not be low.

Do you see this issue on several custom boards, or is it only one board ?

[bardia3000]

There was a problem about this pin, I solved It, It was connected to another chip, but It can be unsoldered, now the NRST is high, but still the same problem happens, It cannot find the nrf52811.

[Sigurd]

bardia3000 said:

but still the same problem happens, It cannot find the nrf52811.

1) Do you see this issue on several custom boards, or is it only one board ?

2) Could you try to power it at 3V, and see if you are able to program it then ?

3) Also make sure that you have not accidentally switched SWDCLK and SWDIO when connecting the debugger.

[bardia3000]

1) Yes all borads are the same.

2) No there are some other chips which must be powered with 1v8.

3) I double-checked it, It is okay

[Sigurd]

bardia3000 said:

JLink OB as programmer.

What JLink OB is this ? Is it the one located on a nRF52-series DK ? If yes, what DK did you try ? nRF52832DK, nRF52840DK, etc ?

For e.g. nRF52840 DK we have this note about programming external boards:

Note: The voltage supported by external debugging/programming is VDD voltage. Normally, this is 3 V when running from USB, but if the onboard nRF52840 SoC is supplied from either USB or Li-Ion, the nRF power source switch (SW9) is in either Li-Po or USB position, and VDD can be set by the nRF52840 firmware. Make sure the voltage level of the external board matches the VDD of the nRF52840 DK.

[bardia3000]

I tried both jlink ob and jlink pro, I also set it's voltage target to both 3v3 and 1v8, does jlink need a firmware update to support nrf52811? beacause an almost same pcb with nrf52832 works fine.