Custom nRF5340 board not start and fail second program

Hello,

for our project we develop a custom board based on nrf5340 SoC by using Raytac module MDBT53.

We design de board by using LDO module and external 32kHz (with external capacitors).

The custom board files was written by copy and modify the nrf5340dk files.

In the pro.conf we added these lines:

CONFIG_NFCT_PINS_AS_GPIOS=y
CONFIG_BOARD_ENABLE_DCDC_APP=n
CONFIG_BOARD_ENABLE_DCDC_NET=n
CONFIG_BOARD_ENABLE_DCDC_HV=n

When we program the module with Jlink (by using VSC), everything is fine, but when the board start nothing works (on nrf5340dk the application works) and the reset pin goes to 2V. I can't start the debug and I don't know why!

The second problem is: when I try to reprogram the board, the JLink fail and I need to clear the memory by using JFlash! The log is:

west flash -d d:\Projects\X\X_nRF5340_VSC_SDK2.1.2\X_1_0_X_Y_0 --skip-rebuild -r nrfjprog --dev-id 601006065 --erase

-- west flash: using runner nrfjprog
-- runners.nrfjprog: mass erase requested
-- runners.nrfjprog: Flashing file: D:\Projects\X\X\X_1_0_X_Y_0\zephyr\merged_domains.hex
-- runners.nrfjprog: D:\Projects\X\X\X_1_0_X_Y_0\zephyr\merged_domains.hex targets both nRF53 coprocessors; splitting it into: D:\Projects\X\X\X_1_0_X_Y_0\zephyr\GENERATED_CP_NETWORK_merged_domains.hex and D:\Projects\X\X\X_1_0_X_Y_0\zephyr\GENERATED_CP_APPLICATION_merged_domains.hex
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
Failed to enable coprocessor with unknown error.
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
[error] [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".
ERROR: JLinkARM DLL reported an error. Try again. If error condition
ERROR: persists, run the same command again with argument --log, contact Nordic
ERROR: Semiconductor and provide the generated log.log file to them.
NOTE: For additional output, try running again with logging enabled (--log).
NOTE: Any generated log error messages will be displayed.
FATAL ERROR: command exited with status 33: nrfjprog --program 'D:\Projects\X\X\X_1_0_X_Y_0\zephyr\GENERATED_CP_NETWORK_merged_domains.hex' --chiperase --verify -f NRF53 --snr 601006065 --coprocessor CP_NETWORK

 *  The terminal process terminated with exit code: 33. 

Can you help me? I need to send away the first prototype before monday!

Best

Marco

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