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conorpp / u2f-zero

U2F USB token optimized for physical security, affordability, and style
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Unable to build firmware with Simplicity Studio 4 #31

Closed raoulh closed 7 years ago

raoulh commented 7 years ago

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 commented 7 years ago

Did you install the EFM8 device when installing simplicity studio?

saeugetier commented 7 years ago

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

raoulh commented 7 years ago

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 commented 7 years ago

Version 4 here.

raoulh commented 7 years ago

Ok, works with Simplicity Studio 3

ThomasWaldmann commented 7 years ago

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

conorpp commented 7 years ago

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 commented 7 years ago

Thanks for updating the docs!