MicroBlaze LED Blink Application

#include <xparameters.h>
#include <xiomodule.h>
#include <stdbool.h>

#define LED_DELAY 250000

int main()
{
    //Instantiate IOs
    XIOModule gpi;
    XIOModule gpo;

    //Initialize IOs
    XIOModule_Initialize(&gpi, XPAR_IOMODULE_0_DEVICE_ID);
    XIOModule_Start(&gpi);
    XIOModule_Initialize(&gpo, XPAR_IOMODULE_0_DEVICE_ID);
    XIOModule_Start(&gpo);

    //LED State
    bool led = false;

    for (;;)
    {
        if (led)
            XIOModule_DiscreteWrite(&gpo, 1, (1<<7)); //Turn on bit 7 of GPO1
        else
            XIOModule_DiscreteWrite(&gpo, 1, 0); //Turn off all of GPO1

        //Toggle the LED state
        led = !led;

        //Wait for a little bit
        for (u32 i=0; i<LED_DELAY;++i);
    }
}