/* Driver header file */
   #include <stdio.h>
   #include <prussdrv.h>
   #include <pruss_intc_mapping.h>

   #define PRU_NUM 	0

   /* IRQ handler thread */
   void *pruevtout0_thread(void *arg) {
       do {
          prussdrv_pru_wait_event (PRU_EVTOUT_0);
          prussdrv_pru_clear_event (PRU_EVTOUT_0, PRU0_ARM_INTERRUPT);
       } while (1);
   }

   void main (void)
   {
       int n;
       /* Initialize structure used by prussdrv_pruintc_intc   */
       /* PRUSS_INTC_INITDATA is found in pruss_intc_mapping.h */
       tpruss_intc_initdata pruss_intc_initdata = PRUSS_INTC_INITDATA;

       /* Allocate and initialize memory */
       prussdrv_init ();
       prussdrv_open (PRU_EVTOUT_0);

       /* Map PRU's INTC */
       prussdrv_pruintc_init(&pruss_intc_initdata);

       /* Copy data to PRU memory */
       unsigned int x = 7;
       prussdrv_pru_write_memory(PRUSS0_PRU0_DATARAM, 0, &x, 4);

       /* Load and execute binary on PRU */
       prussdrv_exec_program (PRU_NUM, "./buttonTest.bin");

       /* Wait for event completion from PRU */
       n = prussdrv_pru_wait_event (PRU_EVTOUT_0);  // This assumes the PRU generates an interrupt
                                                    // connected to event out 0 immediately before halting
       printf("PRU program completed, event number %d.\n", n);

       /* Disable PRU and close memory mappings */
       prussdrv_pru_disable(PRU_NUM);
       prussdrv_exit ();
    }