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Arduino Pgm_Read_Word. The compiler translates them to addresses that are actually passed to the pgm_read_word function. The address is a byte address.
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So i thought may be i should define menu_str [] in the following way. Pgm_read_word_near(address) − this function returns the value of one word (2 bytes on most microcontrollers) with location starting from address. Read_word is literally defined to be. And you have to use the address with ' & ', like this: Web pointers on teensy are 32bits, so you can't cast a pgm_read_word () (which returns 16bits) to a pointer sure you can. X = pgm_read_byte (framepos++) i read this as: Web arduino noob here, struggling to understand how a couple of things work in a sketch i'm trying to hack. The value is an address. 3 you are correct in using snprintf_p to allow the format string to be read from progmem. K++) { displayint = pgm_read_word_near (charset + k);
Const progmem float f = 3.12; // read back a char for (byte k = 0; K++) { displayint = pgm_read_word_near (charset + k); Pgm_read_word_near(address) − this function returns the value of one word (2 bytes on most microcontrollers) with location starting from address. There is no pgm_read_int_near (). In order to use these functions, the target device must support either the lpm or elpm instructions. 3 you are correct in using snprintf_p to allow the format string to be read from progmem. The usage of these functions will be clear in the example below. I have a requirement to store two dimensional arrays of numbers in progmem. Web progmem pgm_read_word usage within loop. Web pointers on teensy are 32bits, so you can't cast a pgm_read_word () (which returns 16bits) to a pointer sure you can.
