Just to add, I tried out the VLDiscovery build just now and while it works on the board, it was impossible to do much - it crashed almost immediately because I believe there wasn't much RAM left for stack.
I've just tweaked the variable count - from 500 down to 400, and it works much more reliably (although I don't think that was actually your problem).
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.
Just to add, I tried out the VLDiscovery build just now and while it works on the board, it was impossible to do much - it crashed almost immediately because I believe there wasn't much RAM left for stack.
I've just tweaked the variable count - from 500 down to 400, and it works much more reliably (although I don't think that was actually your problem).