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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.
@Gordon
Ahh, thanks - that's good to know! I thought it was strange that the FatFS library didn't update modified time properly.
I guess it makes sense - if you have the file open for a while you want to write the modified time to the time of the last write rather than when the file was opened.