getting compile error - error: $59: function call is not allowed in a constant expression

[Dak]

Hello,

I'm a newbie to BLE and the Keil uvision IDE.  I'm using a nrf51422_xxac_s110 chip, The version of the IDE I'm using is 5.28.0.0.  When I add the fds.c  file, into the nRF_Libraries file group I get the following error :

getting compile error - error: #59: function call is not allowed in a constant expression.

It's specifically complaining about the following line near the top of fds.c;

#if NRF_MODULE_ENABLED(FDS)

I've attached a screenshot to make it clearer.  Not sure if I should be posting this issue here, or with tech support for Keil.  It could be I just don't know how to use the IDE properly, although all the code is written by Nordic.

Thanks

Dak

[Vidar Berg]

Hello Dak,

It looks like you are importing FDS to an older SDK. This would require some porting and it won't work together with the pstorage module. I would instead recommend you to start with SDK version 12.3.0 which is the latest SDK with nRF51 support. Alternatively, use pstorage with the SDK you're currently using. 

SDK release are available at this page: https://www.nordicsemi.com/Software-and-Tools/Software/nRF5-SDK

[Dak]

Hi Vidar,

I followed the link you posted, and navigated to the documentation page for SDK 12.3.0.  From the documentation it appears that my chip nrf51422_xxac_s110 is not supported.  I've included a screenshot here.  Also can you provide me a direct download link to the correct sdk, be it 12.3.0 or something else?  

Thank you

Dak

[Vidar Berg]

Hi Dak,

nrf51422 xxAC is compatible with SDK 12.3.0. You may refer to compatibility matrix here to see which Softdevice/SDK/chip combinations you can use: SDKs and SoftDevices

Direct download link:

nRF5_SDK_12.3.0_d7731ad.zip

[Dak]

thanks this solved my issue.  I have another question but I'll create a new ticket for it

[Vidar Berg]

Thanks for confirming. Einar will help you with the other ticket.