First of all hi everyone, I have been reading the forum for a long time but never asked anything but I seem to not find the answer right now. Also this is for Arduino AVR I have been searching if I can fix a PROGMEM variable in a certain memory locations. I know I can do const uint8_t var1 PROGM…

Modify boards.txt to reduce the available flash memory for the sketch, then place your serial number within the unusable area. Another idea, put the code for the serial number in its own header and cpp file, the modify the hex file from that and rerun the linker before uploading.

Placing memory constants at a fixed location

Projects Programming

flashko October 13, 2021, 7:00pm 15

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Placing memory constants at a fixed location

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