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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.
asez73
Hmm, interesting.
Could you use a hex editor and write the first 8 bytes of a bin file that works and one that doesn't? If they're hex files, just the second line would be enough.
This would be really frustrating. Flash memory is mapped to both 0x00000000 and 0x08000000 - so both addresses are valid. Espruino uses a reset vector at 0x00000000 because it sometimes produces smaller code, but it's possible that some idiot at ST has changed their bootloader so that you can ONLY upload code that runs from 0x08000000!