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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.
@allObjects
Yes, in Espruino common memory management is done with chained blocks to avoid some of the gc challenges that come otherwise and to support interpretation from source code as Espruino does. Most recently though, @Gordon has introduced the options of allocating memory as contiguous string of bytes. I'm though not familiar with the requirements to make that available for the DMA for bulk sending as you are looking for.