[kaczakat]

Znalazłem kiedyś dwa przykłady jak sprawdzić wolny RAM, zapisałem sobie "na kiedyś", na razie nie miałem potrzeby testować. Możesz sobie sprawdzić:

Kod:

size_t freeRam ()
 {
 return RAMEND - size_t (__malloc_heap_start);
 } // end of freeRam

void setup ()
 {
 Serial.begin (115200);
 Serial.println ();

 Serial.print (F("Free memory = "));
 Serial.println (freeRam ());
 }  // end of setup

void loop () { }




/* This function places the current value of the heap and stack pointers in the
* variables. You can call it from any place in your code and save the data for
* outputting or displaying later. This allows you to check at different parts of
* your program flow.
* The stack pointer starts at the top of RAM and grows downwards. The heap pointer
* starts just above the static variables etc. and grows upwards. SP should always
* be larger than HP or you'll be in big trouble! The smaller the gap, the more
* careful you need to be. Julian Gall 6-Feb-2009.
*/
/*
void check_mem() {
 //uint8_t * heapptr, * stackptr;  // I declared these globally
 stackptr = (uint8_t *)malloc(4);  // use stackptr temporarily
 heapptr = stackptr;                  // save value of heap pointer
 free(stackptr);                        // free up the memory again (sets stackptr to 0)
 stackptr =  (uint8_t *)(SP);       // save value of stack pointer
 }

check_mem(); // heappstr, stackptr have been declared (as  uint8_t * heapptr, * stackptr;)
Serial.print(" heapptr: "); Serial.println(*heapptr);
Serial.print("stackptr: "); Serial.println(*stackptr);
Serial.println ((int) heapptr);


*/