Does anyone have a link to the specification (or even some sort of
dccumentation) for the Silicon Labs microcontroller that was handed out on
Friday at the summit? Unfortunately, the silabs website knows no product of that
name or part number.
I managed to get it working, based on the SLSTK3401a. I was lucky that it shared the same pinout regarding the RX/TX. The reference manual and datasheet are available. I put the links in here: https://github.com/basilfx/EFM2Riot/blob/master/dist/doc/Thunderboard%20Sense.md
You can find my PR here: https://github.com/RIOT-OS/RIOT/pull/5652. Since I also work on other EFM32 targets, I have more to see here: https://github.com/basilfx/EFM2Riot.
I don’t have a driver for the radio. I leave that (the actual challenge) up to who wants to win the hoodie
Great that you already started working on it.
But I don't think that datasheet is quite accurate. The chip on the backside of
the board states, that it is a Cortex-M3 processor, not an M4.
There are two chips: one is the board controller (for mbed-related stuff, virtual com, mass storage).
The other is the actual chip, an EFR32MG1P132F256GM48 (as seen here: https://github.com/basilfx/EFM2Riot/blob/master/dist/doc/images/thunderboard_sense.png). That is, definitely a M4 with FPU.
No official documentation yet, but I just found this link: https://www.mit.bme.hu/system/files/oktatas/targyak/9979/Silabs_Wireless_Gecko_MIT.pdf. Page 32 describes all the sensors.
the colleagues from Silicon Labs asked to share the following link
with you https://www.dropbox.com/s/90hhnswiktcfjzz/BRD4160.zip?dl=0
Here you can download a ZIP archive including schematic, assembly
drawing, and BOM.