Print trace messages over a Silicon Labs C2 debugger connection
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C2-PRINTF is a small utility that lets you do printf()-style debugging over a C2 debugger connection, for use with the Silicon Labs EFM8 and C8051F microcontrollers.

Full write up available on my blog:

If you build the WPF application you will need to ensure that the following DLLs are in the same folder as the c2-printf executable. (i.e. ..\c2-printf\bin\Debug)

  • libgcc_s_dw2-1.dll
  • libstdc++-6.dll
  • slab8051.dll
  • slabhiddevice.dll

These can be found in the C:\SiliconLabs\SimplicityStudio\v3\common\tcf and C:\SiliconLabs\SimplicityStudio\v3\common\tcf\plugins folder.