[rogerbinns]

I good example of this is XMOS. Their chips are divided into "tiles" which can simultaneously run code, together with multiple interfaces such as USB, i2s, i2c, and GPIO. Latency is very deterministic because the tiles are not using caches, interrupts, shared buses etc.

Their development environment is Eclipse based with numerous libraries such as audio processing, interface management, DFU etc. They use a variant of C (xc) that lets you send data between channels/tiles, and easily parallelize processing.

An example use is in voice assistants where multiple microphones need to be analyzed simultaneously, echo and background noise has to be eliminated, and the speaker isolated into a single audio stream. I've used it for an audio processing product that needed match hardware timers exactly, provide USB access, matched input and output etc.