I am making a game on the Arduino with large maps stored in unsigned long datatype in two dimensional arrays. I have tried to use the PROGMEM code to store and retrieve the map data; I cannot find out how to retrieve it but I was able to store it. I really do not understand this PROGMEM code, but …

PROGMEM: storing and retrieving unsigned long data

guix October 16, 2012, 2:06pm 6

Shouldn't you be using pgm_read_dword_far instead?

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