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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.
@Wilberforce
In the esp32 case you mentioned allocating memory in a certain way to use for Dma. Is there any downside to this, as the arraybuffer class in the esp32 case could allocate this type of continuous block, and then you would not need to the memcpy at all as the source would already be of the correct type.