Hello everyone i am new to the world of Arduino and i am having problems storing temporary values in Arduino RAM so i thought i would store them in flash storage using PROGMEM. i am trying to store 2 byte arrays but i cant get them to display after they are stored. After some testing i cant get Serial Print to work properly either but if in the mean time somebody can better explain PROGMEM that would be helpful. my code so far is:
#include <avr/pgmspace.h>
struct GRID{
boolean isOn;
uint16_t color;
uint8_t X;
uint8_t Y;
};
GRID landed[10][22];
GRID falling[22][10];
//PROGMEM prog_uint8_t xAxis[] = {1,2,3,4,5,6,7,8,9,10};
//PROGMEM prog_uint8_t yAxis[] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22};
uint8_t xAxis[] = {1,2,3,4,5,6,7,8,9,10};
uint8_t yAxis[] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22};
void iniLanded(){
for(int i = 0; i < 10; i++)
for(int j = 0; j < 22; j++){
landed[i][j].color=0x0000;
landed[i][j].X = xAxis[i];
landed[i][j].Y = yAxis[j];
}
}
void iniFalling(){
for(int i = 0; i < 22; i++)
for(int j = 0; j < 10; j++){
falling[i][j].color=0x0000;
falling[i][j].X = xAxis[j];
falling[i][j].Y = yAxis[i];
}
}
void printLanded(){
for(int i = 0; i < 10; i++)
for(int j = 0; j < 22; j++){
Serial.print(landed[i][j].X); Serial.print(" "); Serial.println(landed[i][j].Y);
}
}
void printFalling(){
for(int i = 0; i < 22; i++)
for(int j = 0; j < 10; j++){
Serial.print(landed[i][j].X); Serial.print(" "); Serial.println(landed[i][j].Y);
}
}
void setup(){
Serial.begin(9600);
iniLanded();
iniFalling();
}
void loop(){
Serial.println(F("Hello World!"));
delay(100);
/*printLanded();
delay(100);
printFalling();
delay(100);*/
}
