a0e0fac18809001e16f2d111613050c7

完整的Nios 2 演示工程

/*
 * "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 <system.h>
#include <altera_avalon_pio_regs.h>
#include <alt_types.h>

int main()
{
  alt_u8 i;
  alt_u32 j;
  while(1)
  {
    for(i=0;i<3;i++)
    {IOWR_ALTERA_AVALON_PIO_DATA(LED_IO_BASE,i);
        j=0;
        while(j<100000)
        j++;
    }
  }
  return 0;
}