my nrf52833 board cannot work after power. but can start when I run nrfjprog --reset .
but when I power down and power on the nrf52833 board, it do not work.
the following is my board. (No nfc)
please check and tell me . what caused the reset issue (power off and power on cannot start<boot> the board )
thanks。
I try and remove this pullup resistor. the observation is just the same.
And I find another issue:
the SWD interface did not works well.
for example:
the reset and eraseall command would run into trouble too. (sometimes it works well. sometimes it fail)
nrfjprog --reset
[error] [ Client] - Encountered error -102: Command read_device_info executed for 40 milliseconds with result -102
[error] [ Worker] - An unknown error.
[error] [ Client] - Encountered error -102: Command read_memory_descriptors executed for 44 milliseconds with result -102
Failed to read device memories.
[error] [ Worker] - 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.
my swd and swsck is connected to DK pin
vs code <------> 52833DK <------>my board.
would you please tell me how can I handle this 19,20pin (swdio,swdsck)?
would you please give me reference design for SWD interface?
I try and remove this pullup resistor. the observation is just the same.
And I find another issue:
the SWD interface did not works well.
for example:
the reset and eraseall command would run into trouble too. (sometimes it works well. sometimes it fail)
nrfjprog --reset
[error] [ Client] - Encountered error -102: Command read_device_info executed for 40 milliseconds with result -102
[error] [ Worker] - An unknown error.
[error] [ Client] - Encountered error -102: Command read_memory_descriptors executed for 44 milliseconds with result -102
Failed to read device memories.
[error] [ Worker] - 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.
my swd and swsck is connected to DK pin
vs code <------> 52833DK <------>my board.
would you please tell me how can I handle this 19,20pin (swdio,swdsck)?
would you please give me reference design for SWD interface?
