Unable to build firmware with Simplicity Studio 4

[raoulh]

Trying to build the firmware with simplicity studio 4.0 but it failed.
After doing file->import the u2fzero firmware into the workspace, the toolchain/board/part are not available. It seems the project does not have a correct config somehow.

How to build it?

[conorpp]

Did you install the EFM8 device when installing simplicity studio?

[saeugetier]

Have you tried Simplicity Studio 3 or 4? I had issues with version 4. Please try version 3.

[raoulh]

Yes. I also can create a new project and build it correctly.

I found out that the project files:
https://github.com/conorpp/u2f-zero/blob/master/firmware/.project#L23
does contain this instead in my working project:
<nature>com.silabs.ss.framework.ide.project.sls.core.SLSProjectNature</nature>

No idea why... Do you build in the latest simplicity studio 4.0.1?

[raoulh]

Version 4 here.

[raoulh]

Ok, works with Simplicity Studio 3

[ThomasWaldmann]

So, if it doesn't work with v4, add the version number to the u2f-zero docs?

[conorpp]

I tried recreating the project in v4 but there's another problem with the program not compiling to a small enough size. Program size grew by about 2KB from v3 to v4, which is quite significant for a 16KB memory microcontroller. Silabs probably added a lot more code to the v4 SDK.

So only v3 will work. I've update wiki.

[ThomasWaldmann]

Thanks for updating the docs!