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Dayah-

> I want to use HPI0-HPI7 as the output pins/GPIO to blink the external
> LEDs. How to do this by using c programming ? I'm using dsk5416. What
> I know is I need to set the address for GPIOCR(003Ch) and the
> GPIOSR(003Dh). Then I need to set which pin that I want to use as
> input or output for GPIOCR. Then I need to set the output as GPIOSR.
> 
> Here is my program...but not working. Can someone help me ?

If this is with DSK 5416 board, then you may need to disable HPI (clear HPIENA pin at
boot-time).  If you use GPIO on HD0-HD7 then multiplexed HPI (HPI8 mode) will be
disabled -- on the DSK 5416 HPI8 is one of the expansion connectors.  Is that where
you are monitoring the pins?

-Jeff

> #include<dsk5416.h> #define GPIOCR 0x003c;
> #define GPIOSR 0x003d;
> 
> ioport unsigned port3C,GPIOCR;
> ioport unsigned port3D,GPIOSR;
> 
> void delay(void)
> {
>         long i, j=0;
>         for(i=0;i<1000;i++)
>         {
>                 j++;
>         }
> 
> }
> void main()
> {
>  GPIOCR=0xf0;
> 
>  while(1)
>  {
>         GPIOSR=0x00;
>         delay();
>         GPIOSR=0xf0;
>         delay();
>  }
> }
>
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