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Toggling LED

Hello all

I am quite new to Keil STR9 Series. I was just learning the whole thing by going through and trying some small examples with it.
I want to know how to control just one LED ( say 7.0) to blink at a time.

   while (1)
         {
            for (n = 0x01; n <= 0xFF; n <<= 1)
            {
               GPIO7->DR[0x3FC] = n;
            }
         }

This piece of code turns on the all 8 LEDS at the same time. How can i blink just one LED (7.0) every 1 second?

Thanks

Parents

0 m vis over 14 years ago in reply to m vis

            IC6
         74LVC244
  P7.7      =>     LED7 (1 = ON)
  P7.6      =>     LED6 (1 = ON)
  P7.5      =>     LED5 (1 = ON)
  P7.4      =>     LED4 (1 = ON)
  P7.3      =>     LED3 (1 = ON)
  P7.2      =>     LED2 (1 = ON)
  P7.1      =>     LED1 (1 = ON)
  P7.0      =>     LED0 (1 = ON)

Reply

0 m vis over 14 years ago in reply to m vis

            IC6
         74LVC244
  P7.7      =>     LED7 (1 = ON)
  P7.6      =>     LED6 (1 = ON)
  P7.5      =>     LED5 (1 = ON)
  P7.4      =>     LED4 (1 = ON)
  P7.3      =>     LED3 (1 = ON)
  P7.2      =>     LED2 (1 = ON)
  P7.1      =>     LED1 (1 = ON)
  P7.0      =>     LED0 (1 = ON)

Children

No data