Variable "sec_mode" is used uninitialized at this location in the sourcecode

[Renix]

With IAR (EWARM) 8.50.9 the UART project in the SDK compiles fine.

After upgrading to IAR (EWARM) 9.10.1 or 9.10.2 I get compiler error:

 Error[Go029]: Variable "sec_mode" is used uninitialized at this location in the sourcecode. D:\2\IAR\nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart\main.c 156 

Any help on what the problem is?

[Renix]

Karl,

Thanks for the reply, but this sounds like a bug in the UART example code?

I do not understand why earlier versions of IAR compiled OK, and past 9.xx shows the error, but it sounds a fix in the code is needed?

Regards

[Karl Ylvisaker]

Renix said:

Thanks for the reply

No problem at all, I am happy to help!

Renix said:

I do not understand why earlier versions of IAR compiled OK, and past 9.xx shows the error, but it sounds a fix in the code is needed?

Could it be that the newer version is compiling with a different optimization level, for example?
Or could it be that the newer IAR version uses a different compiler, or different compiler version than the previous version? This should all be specified in the changelog for the newer version, if it is the case.

Do I also understand you correctly that you have made no changes to the BLE UART example prior to running it with the newer IAR version, and suddenly getting this error?

Best regards,
Karl