After use nrfjprog program nrf52840,cann't run normal.

[louis.huang]

>nrfjprog -v

nrfjprog version: 9.8.1
JLinkARM.dll version: 6.40

>nrfjprog --program fw.hex -f nrf52 --sectorerase  --verify fw.hex  --reset

......
Erasing page at address 0xB2000.
Erasing page at address 0xB3000.
Applying system reset.
Checking that the area to write is not protected.
Programming device.
Verifying programming.
Verified OK.
Applying system reset.
Run.

fw.hex

[louis.huang]

Hi,

  We can not reach any uart log output from P0.0 or P1.08.

[Håkon Alseth]

Hi,

 

If you enter debug mode, and check. Does the firmware run as expected? if not, where does it fail?

Best regards,

Håkon

[louis.huang]

Because i have no source code,so i cannot debug the firmware online.

I want to find the test samples of  nrf52840 that can output logs from serial ports,is there any suitable on the website.

Thx.

[Håkon Alseth]

You need to contact whomever created the .hex file to help you debug your issue.

Best regards,

Håkon