Building modified code then flashing with ninja flash flashes the old version of the application in a multi-image build

RE: Building modified code then flashing with ninja flash flashes the old version of the application in a multi-image build

Torsten Rasmussen — Mon, 17 May 2021 11:05:41 GMT

This should be fixed here.
https://github.com/nrfconnect/sdk-nrf/pull/4558

If you have the time, it would be great if you can verify that this is fixing the exact issue you are experiencing.

RE: Building modified code then flashing with ninja flash flashes the old version of the application in a multi-image build

Carl Richard — Fri, 14 May 2021 08:23:56 GMT

Thank you, Jamie! We have reproduced this on our side and are investigating. I'll report back to you as soon as I know more. Thank you for your patience!

Could you try to use the "west" tool instead and see if the same issues are present for you there? Version 0.11 was recently released, so you might need to update it.

Best regards,
Carl Richard

RE: Building modified code then flashing with ninja flash flashes the old version of the application in a multi-image build

jm_laird — Fri, 07 May 2021 07:15:16 GMT

Hi Carl,

Sure. I just got the latest version by using: west init -m github.com/.../sdk-nrf --mr master

I then used zephyr\samples\bluetooth\peripheral_csc as a sample app, built as follows:
set GNUARMEMB_TOOLCHAIN_PATH=C:\gcc-arm
set ZEPHYR_TOOLCHAIN_VARIANT=gnuarmemb
zephyr-env.cmd
cd samples\bluetooth\peripheral_csc
mkdir build
cd build
cmake -GNinja -DBOARD=nrf5340dk_nrf5340_cpuapp ..
ninja

I flashed it to the board using: ninja flash, it ran as expected.

I then changed the main.c file to add this in main(): printk("boom\n");

I then built it again using ninja and flashed using ninja flash and the output was as follows:
*** Booting Zephyr OS build v2.4.99-ncs1-3519-g5585355dde0c ***
Bluetooth initialized

Advertising successfully started

The output is not there, so I verified it using nrfjprog:

nrfjprog -f NRF53 --verify .\zephyr.hex
Parsing image file.
Verifying programming.
ERROR: Write verify failed.

I then erased all the .hex files in the zephyr directory, did ninja and ninja flash again and the output was:

*** Booting Zephyr OS build v2.4.99-ncs1-3519-g5585355dde0c ***

Bluetooth initialized

Advertising successfully started

boom

Thanks,
Jamie

RE: Building modified code then flashing with ninja flash flashes the old version of the application in a multi-image build

Carl Richard — Thu, 06 May 2021 14:22:41 GMT

Hello!

Thanks for reaching out. This is very similar to a known bug that we're working on getting fixed. Though, I haven't seen it happening with ninja+cmake, only with the "west" tool, so this is interesting. I will report your findings internally. Could you describe the procedure exactly (the chain of commands), so that I can try to reproduce?

Best regards,
Carl Richard