URGENT HELP re: toggle switches on DE2

I've created a design with the following components:

Nios II/s

Onchip memory

- 32 KB

PIO 0

- 18 output only

- Base address 8800

- Connected to the Red LEDs

PIO 1

- 18 input only

- Base address 8810

- Connected to the Switches

Ran the following code which continuously reads the switches and writes their values to the LEDs:

#include <io.h>
void main(void)
{
    int sw_data;
    while (1)
    {
        sw_data = IORD_32DIRECT(0x8810, 0);
        IOWR_32DIRECT(0x8800, 0, sw_data);
    }
    return;
}

Seems to work.

A Common Pitfall:

- Not assigning pins to signals in the assignment editor.

Good luck,

Blair