AnsweredAssumed Answered

LEDs on ADSP-21489

Question asked by mlau on Dec 9, 2010
Latest reply on Dec 9, 2010 by mlau

Hi,

 

I'm just trying to toggle the LED lights on and off on the EZ board for the ADSP-21489.  I am able to get LEDs 4-8 that are connected to DAI pins to toggle on and off but am having trouble with LEDS 1-3 which are connected to DPI pins.  My code is..

 

int main( void )
{
     int i;
     SRU(HIGH, PBEN06_I);
     SRU(HIGH, PBEN13_I);
     SRU(HIGH, PBEN14_I);
     SRU(HIGH, PBEN03_I);
     SRU(HIGH, PBEN04_I);
     SRU(HIGH, PBEN15_I);
     SRU(HIGH, PBEN16_I);
     SRU(HIGH, PBEN17_I);
    
     while(1) {
          SRU(HIGH, DPI_PB06_I);
          SRU(HIGH, DPI_PB13_I);
          SRU(HIGH, DPI_PB14_I);
          SRU(HIGH, DAI_PB03_I);
          SRU(HIGH, DAI_PB04_I);
          SRU(HIGH, DAI_PB15_I);
          SRU(HIGH, DAI_PB16_I);
          SRU(HIGH, DAI_PB17_I);
     
          for(i=0;i<10000000;i++) {
                asm("nop;");
          }
          SRU(LOW, DPI_PB06_I);
          SRU(LOW, DPI_PB13_I);
          SRU(LOW, DPI_PB14_I);
          SRU(LOW, DAI_PB03_I);
          SRU(LOW, DAI_PB04_I);
          SRU(LOW, DAI_PB15_I);
          SRU(LOW, DAI_PB16_I);
          SRU(LOW, DAI_PB17_I);
  
          for(i=0;i<10000000;i++) {
                asm("nop;");
          }
      }
return 0;
}
Am I doing something wrong with the DPI pin connected LEDs?
Thanks,
Matt

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