I am learning to use the pin macros from pins_arduino.h
The code below attempts to print out the ports from some of the pin.
The problem I am having is when I accessing the macro within the for loop
I do not get the correct values for the ports.
The correct values are 2, 3 & 4 for ports B,C, & D
I do get the correct value when not using a for loop.
Here is the code.
#include <avr/pgmspace.h>
uint8_t myport,i ;
void setup()
{
Serial.begin(9600);
while(!Serial);
i=10;
myport = digital_pin_to_port_PGM[i]; //get port for pin 10
Serial.println(myport);
Serial.println();
for(i=0; i<14; i++) {
myport = digital_pin_to_port_PGM[i]; //get port for pin i
Serial.println(myport);
}
}
void loop() {
}