make: Circular flash <- flash dependency dropped.

[pashka]

I am trying to flash TCP-Server example from IOT SDK from Eclipse. Project builds without errors. But I am getting this warning message in Eclipse console when I flash to nRF52 DK:

make: Circular flash <- flash dependency dropped.

Apparently the project is not flashing correctly - I do not see lit advertisement LED.

I use nrf52832_xxaa_s1xx_iot soft device as stated in Makefile (make target: flash nrf52832_xxaa_s1xx_iot). Everything works fine except that warning above. The target execution ends with the following:

.......
Applying system reset.
Checking that the area to write is not protected.
Programing device.
nrfjprog --reset
Applying system reset.
Run.
make: `nrf52832_xxaa_s1xx_iot' is up to date.

But documentation for this examle says:

Ensure the custom SoftDevice located at components/softdevice/s110_for_ipv6 is used.

I could not find this softdevice.

I also do not have advertising LED on when I program the DK using nrfjprog from terminal.

Please suggest what I should do to make the example running. Thank you.

[Einar Thorsrud]

In order for IoT applications to function you have to flash the SoC with the SoftDevice before you flash it with your application. The IoT SoftDevice is part of the nRF51-IoT-SDK-zip under Nordic\nrf51\components\softdevice\s1xx_iot. Flash the s1xx-iot-prototype2_softdevice.hex using for example nRFgo Studio or nrfjprog.

[pashka]

Great! It works now. Thank you very much!

But I still have this warning with "Circular flash"

[Mahesh Venkitachalam]

The circular dependency is still a problem, whether the softdevice is programmed or not. This seems to be because MAKECMDGOALS is not defined. I had to change it to flash: nrf52832_xxaa_s1xx_iot to make it work.