//Problem: Connect a LED to port J bit 0. Glow LSB LED only (bit 0)


/* here port j is pin 14 -- pin 21 
so port j bit 0 is pin 14 in hardware
in order to access those here direction register address is 104
port address is 105*/

void setup() {
  // put your setup code here, to run once:
  volatile char *dirj;
  dirj = 0X104;  //accessing DDR of J port
  *dirj = 0XFF;   // setting it as output
}

void loop() {
  // put your main code here, to run repeatedly:
volatile char *portj;
portj = 0X105;
*portj = 0x01;

}