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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.
@fanoush
Just to let you know that I managed to attach gdb over SWD and backed up the firmware and created github repository https://github.com/fanoush/ds-d6 with the files and some basic info. I'll try to build micropython or espruino whichever will be easier to build for bare nrf52832_512k_64k I guess it may be easier/faster to scan and test various buses and hw attached to it interactively than writing/building/flashing C code.
It uses S132 v2.0 Softdevice so I hope when linking and flashing to 0x1c000 it will start up and I won't break anything. DFU bootloader is probably starting at 0x78000