I'm afraid not - the VC31 is amazingly badly documented and pretty much everything had to be reverse engineered.
I literally just got hold of a Chinese language datasheet a few days ago, but I still need to work out if I'm ok to share that.
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I'm afraid not - the VC31 is amazingly badly documented and pretty much everything had to be reverse engineered.
I literally just got hold of a Chinese language datasheet a few days ago, but I still need to work out if I'm ok to share that.