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I see that require("Flash").write(0,0x1000120c) doesn't work.
Yes, there is no nordic api for that https://devzone.nordicsemi.com/f/nordic-q-a/7300/can-sd_flash_write-be-used-to-write-to-the-uicr or https://devzone.nordicsemi.com/f/nordic-q-a/20864/pattern-for-writing-to-uicr-while-soft-device-enabled
With that patch I am doing it by poking NVMC
NRF.onRestart=function(){ poke32(0x4001e504,1);while(!peek32(0x4001e400)); // enable flash writing poke32(0x1000120c,0xfffffffe);while(!peek32(0x4001e400)); // NFC pins as GPIO poke32(0x4001e504, 0);while(!peek32(0x4001e400)); // disable flash writing } NRF.restart();
fanoush
When a firmware without NFC enabled boots, it clears the UICR registers automatically to enable the GPIO pins.
So actually the easy solution is just to install a firmware with NFC disabled and it'll all magically work - although the official build still has NFC in so we'd have to do a custom build.
@fanoush did you find another way to set UICR register values from Espruino? I see that
require("Flash").write(0,0x1000120c)doesn't work.Are these modules you've got from the Espruino shop, or are you programming your own? If you'd programmed your own it should be pretty easy to do a build yourself, otherwise I can get one sorted for you.