Help with PROGMEM(Solved)

Projects Programming
1

I am saving some data to flash using PROGMEM
int var1 = 34;
int var2= 32;
int var3=534;
PROGMEM prog_uint16_t SaveMem[] = {var1,var2,var3};
After that how do I fetch the data from the flash and reasign them to var1,var2,var3.
Example:
var1 = (code to fetch data from flash for var1)
var2 = (code to fetch data from flash for var2)

If I am doing it wrong please correct me. I already tried looking at http://arduino.cc/en/Reference/PROGMEM but I don't understand it.

2

PROGMEM is like a readonly repository. What do you want to do?

3

I am trying to save the variables to flash memory(var1,var2,var3) then I want to be able to load them from flash memory and reassign them to the variables. For example var1 =32 then is saved to flash memory. var1 is somehow changed to 56. Now I want to load the flash memory so var1 = 32 again. Basicly I am just trying to save to flash so when I power off the device the variables are still saved.

4

That's called EEPROM :slight_smile: look that one. PROGMEM is readonly to avoid using the ram (like with big strings)

5

Is it possible to store an array or something in EEPROM to slow down the read/write limit from being reached. Because I have 13 values to save per write.

6

Not sure, you have to research something by yourself.

http://arduino.cc/playground/Code/EEPROMWriteAnything

7

eried:
Not sure, you have to research something by yourself.

Arduino Playground - HomePage

Alright I think I figured it all out, thanks for the help.