Arduino Pgm_Read_Word. Const char *menu_str[] progmem = { menu_1, menu_2, menu_3, menu_4, menu_5, menu_6 }; You couldn't meaningfully cast a 32 pointer to a 16 bit pointer, but casting to a larger size is always valid.
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K++) { mychar = pgm_read_byte_near (signmessage + k). 1 #define pgm_read_word (address_short) pgm_read_word_near (address_short) the input is address_short and. Const uint8_t *framepos = framelist; Web arduino noob here, struggling to understand how a couple of things work in a sketch i'm trying to hack. The address is a byte address. K++) { displayint = pgm_read_word_near (charset + k); Web 1 answer sorted by: Const char *menu_str[] progmem = { menu_1, menu_2, menu_3, menu_4, menu_5, menu_6 }; (unless you want the word from address 85 of ram.) and pointer is already a pointer, so you don't need the & in front of it. I want to change »string_table_xx« in »pgm_read_word (string_table_xx)« dynamically.
Since you know that those 16 bits are a signed integer, you should cast them to a signed integer. So i thought may be i should define menu_str [] in the following way. Define constant pointer framepos to framelist array in ram. 1 #define pgm_read_word (address_short) pgm_read_word_near (address_short) the input is address_short and. In order to use these functions, the target device must support either the lpm or elpm instructions. System january 23, 2012, 8:27pm 2. Web arduino noob here, struggling to understand how a couple of things work in a sketch i'm trying to hack. Set x to byte read from memory at address held in pointer. I have a requirement to store two dimensional arrays of numbers in progmem. String_table_01 and string_table_02 are names. Web the progmem keyword is a variable modifier, it tells the compiler to keep this variable in flash memory, instead of loading it into sram.
