make flash runs fine but stop flashing sometimes

RE: make flash runs fine but stop flashing sometimes

Louis Hatte — Tue, 16 Jul 2019 10:32:32 GMT

Flashing soft device as well works.

Thanks Häkon

RE: make flash runs fine but stop flashing sometimes

Håkon Alseth — Tue, 16 Jul 2019 10:20:00 GMT

You need to flash the softdevice as well.

Try this: "make flash_softdevice && make flash"

Kind regards,

Håkon

RE: make flash runs fine but stop flashing sometimes

Louis Hatte — Tue, 16 Jul 2019 10:10:28 GMT

Here it is:

nrfjprog --program _build/nrf52840_xxaa.hex --sectorerase --verify --reset
Parsing hex file.
Erasing page at address 0x26000.
Erasing page at address 0x27000.
Erasing page at address 0x28000.
Erasing page at address 0x29000.
Erasing page at address 0x2A000.
Erasing page at address 0x2B000.
Applying system reset.
Checking that the area to write is not protected.
Programming device.
Verifying programming.
Verified OK.
Applying system reset.
Run.

Verify OK but same issue even if I power-cycle the board.

The program run as the old flashed one until make erase.

But my main project is compiled in s140/ folder instead of blank/ folder in blinky example.

I don't know if it helps.

RE: make flash runs fine but stop flashing sometimes

Håkon Alseth — Tue, 16 Jul 2019 10:01:02 GMT

"make flash" will essentially do this:

nrfjprog -f nrf52 --program $(OUTPUT_DIRECTORY)/nrf52840_xxaa.hex --sectorerase
nrfjprog -f nrf52 --reset

You can add a --verify to ensure that the written content matches:

nrfjprog --program my.hex --sectorerase --verify --reset

Could you try this?

If it still does not work, what happens if you power-cycle the board? Does the firmware run as expected then?

Kind regards,

Håkon

RE: make flash runs fine but stop flashing sometimes

Louis Hatte — Tue, 16 Jul 2019 09:36:35 GMT

Yes I'm flashing in the blinky/pca10056/blank folder

RE: make flash runs fine but stop flashing sometimes

Håkon Alseth — Tue, 16 Jul 2019 08:04:57 GMT

Are you sure you are not flashing the "mbr" project? This one is flash offset with 0x1000, so if you have programmed the "blank" project prior, then this will still run.

Could you double check that you're programming the project "blank", located at this path:

../nRF5_SDK_15.3.0_59ac345/examples/peripheral/blinky/pca10056/blank

Kind regards,

Håkon

RE: make flash runs fine but stop flashing sometimes

Louis Hatte — Tue, 16 Jul 2019 07:42:32 GMT

No, my nrfjprog version is 9.8.1

RE: make flash runs fine but stop flashing sometimes

Håkon Alseth — Tue, 16 Jul 2019 07:07:07 GMT

And nrfjprog is the newest version, v10.2.1?

RE: make flash runs fine but stop flashing sometimes

Louis Hatte — Mon, 15 Jul 2019 14:47:34 GMT

Hi Häkon,

We are using JLinkARM.dll version: 6.46g

RE: make flash runs fine but stop flashing sometimes

Håkon Alseth — Mon, 15 Jul 2019 14:30:15 GMT

Hi,

What version of nrfjprog and JLink are you using? This can be viewed by calling "nrfjprog -v"

Latest version of nrfjprog is available here: https://www.nordicsemi.com/?sc_itemid=%7B56868165-9553-444D-AA57-15BDE1BF6B49%7D

Kind regards,

Håkon

RE: make flash runs fine but stop flashing sometimes

Louis Hatte — Mon, 15 Jul 2019 13:35:26 GMT

I tried "make erase" and my flash works again now...

But I still don't understand why I need to erase and flash again after flashing a project example...