de2-115-fpga-pong/software/hello_world/hello_world.c

/*
 * "Hello World" example.
 *
 * This example prints 'Hello from Nios II' to the STDOUT stream. It runs on
 * the Nios II 'standard', 'full_featured', 'fast', and 'low_cost' example
 * designs. It runs with or without the MicroC/OS-II RTOS and requires a STDOUT
 * device in your system's hardware.
 * The memory footprint of this hosted application is ~69 kbytes by default
 * using the standard reference design.
 *
 * For a reduced footprint version of this template, and an explanation of how
 * to reduce the memory footprint for a given application, see the
 * "small_hello_world" template.
 *
 */

#include <stdio.h>
#include "altera_avalon_pio_regs.h"
#include <system.h>

int main()
{
  printf("Hello from Nios II!\n");
  int count = 0;

  while(1) {
	  //printf("%d\n", count);
	  IOWR_ALTERA_AVALON_PIO_DATA(PIO_LED_BASE, count++);
	  //for(int i=0; i<100000; i++) {
	  //}
  }

  return 0;
}