//Problem: Connect a LED to port D bit 7. Glow MSB LED only (bit 7)


#include <stdint.h>

#define DPORT (*(volatile uint8_t*)0x2B)
#define DDDR (*(volatile uint8_t*)0x2A)

void setup() {
  // put your setup code here, to run once:
  DDDR |= (1<<7); 
}

void delay(void) {
  volatile uint32_t i;
  for (i = 0; i < 1000000; i++);
}
void loop() {
  // put your main code here, to run repeatedly: 
  DPORT &= ~(1<<7);
  delay();
  DPORT |= (1<<7);
  delay();
}