Programmer can't read chip information after i download firmware with VSCode

[Taron]

Hi,

Programmer can't read chip information after i download firmware with VSCode.

Before download, Programmer can read chip information.

Fullscreen 3362.Error_Log.txt Download

16:24:18.572
Selecting device with the serial number 001050050051
16:24:21.640
Error: Failed with exit code 1. Failed to device info one or more devices: * 1050050051: [Probe] Device error: Failed to write DebugPort register 2: Unknown Error in J-Link DLL (error code =-1), code: Generic. Message: Operation device-info failed, [Probe] Device error: Failed to write DebugPort register 2: Unknown Error in J-Link DLL (error code =-1).
16:24:21.640
Selected device with the serial number 001050050051
16:24:21.641
Using nrfutil device to communicate with target via JLink
16:24:24.848
Reading readback protection status for Application core
16:24:24.848
Failed "reading readback protection status for application core". Error: code: 1, description: Generic, message: Batch task protection-get failed, [Probe] Device error: Failed to write DebugPort register 2: Unknown Error in J-Link DLL (error code =-1)
16:24:24.990
Error: Failed with exit code 1. One or more batch tasks failed: - [Probe] Device error: Failed to write DebugPort register 2: Unknown Error in J-Link DLL (error code =-1), code: Generic. Message: Batch task protection-get failed, [Probe] Device error: Failed to write DebugPort register 2: Unknown Error in J-Link DLL (error code =-1).
16:24:24.990
Error: Failed with exit code 1. One or more batch tasks failed: - [Probe] Device error: Failed to write DebugPort register 2: Unknown Error in J-Link DLL (error code =-1), code: Generic. Message: Batch task protection-get failed, [Probe] Device error: Failed to write DebugPort register 2: Unknown Error in J-Link DLL (error code =-1).

Tool : Visual studio code(recently version)

Example code : Bluetooth LE Uart service

Downloding tool : nrf5340dk board

Target Board : Custom board(nrf52832)

Thanks for helping

[Kazi Afroza Sultana]

Hello,

Which version of NCS you are using?

When using an nRF5340DK to program your custom nRF52832 board:

1. Make sure you've properly connected the programming interface between the boards
2. Verify that VDD_nRF and VTG are joined so the programmer knows there's power on the external board

You can check this Programming an external board. 

After this if still the problem exists, you can disable the DCDC by setting CONFIG_BOARD_ENABLE_DCDC=n and can try to program to check if it works.

[Taron]

i solved this problem. my custom board not designed DCDC mode, but i set CONFIG_BOARD_ENABLE_DCDC=y. so i changed set to off the dcdc mode and on the ldo mode, it's working well

thanks.

[Kazi Afroza Sultana]

Glad that it works. Thanks for sharing so we know the root cause.