git.zerfleddert.de Git - rsbs2/blob - bmc/bmc.c

   1 #include <avr/io.h>
   2 #include <stdio.h>
   3 #include "usart.h"
   4
   5 int main(void)
   6 {
   7         uint8_t pb = 0x00;
   8         int8_t dir = 1;
   9         volatile uint16_t i;
  10
  11         DDRB = 0xff;
  12
  13         usart_init();
  14
  15         printf("Hallo!\n");
  16
  17         while(1) {
  18                 pb += dir;
  19                 PORTB = pb;
  20
  21                 for (i = 0; i < (pb<<5); i++) {}
  22
  23                 if ((pb == 0) || (pb == 0xff))
  24                         dir = -dir;
  25         }
  26
  27         return 0;
  28 }