I would have expected a low power TI solution to use a MSP430 instead of the ARM. It would be an interesting to see the tradeoffs for a comparable MSP430 solution.
Some of the radio handling bits on MSP430 would be more complex due to the lack of 32 bit support. There's also some third party firmware for e.g. the lowpwan stuff that's only available as Cortex binaries.
TI keeps trying to push their MSP432 cortex-M4 series on me as a replacement for MSP430. I guess they don't want to have customers go with a different vendor just because TI doesn't have an ARM solution that supports whatever code module or toolchain the customer wants to use.
Thanks, I made a prototype a couple years back where the MSP430 was sufficient and I wanted to move it to llvm to solve my only toolchain annoyance.. But I have trouble seeing the point of investing time as ARM edges closer on the battery advantage..
