Leo Matturi / Mbed 2 deprecated counter

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Dependencies:   mbed

main.cpp@2:7cdadcca2c06, 2010-05-11 (annotated)

Committer:
leonous
Date:
Tue May 11 21:25:52 2010 +0000
Revision:
2:7cdadcca2c06
Parent:
1:6c8d46a9c3c9 

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


leonous

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#include "mbed.h"





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DigitalOut myled1(LED1);





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DigitalOut myled2(LED2);





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DigitalOut myled3(LED3);





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DigitalOut myled4(LED4);





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void update_leds (int myleds)





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{





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  // update the LEDs





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  myled1 = myleds  & 1;





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  myled2 = (myleds & 2) >> 1;





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  myled3 = (myleds & 4) >> 2;





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  myled4 = (myleds & 8) >> 3;





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}





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int main() 





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{





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    unsigned int    count, count_up, speed_up   = 0  ;





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    float           count_interval              = 0.1;





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    count_up = ~ count_up;





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    while(1) 





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    {





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        // update LEDs with the current count value





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        update_leds (count);





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        // count up or down depending on the value of count_up





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        if (count_up)





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            count++;





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        else





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            count--;





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        // interval to next count    





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        wait(count_interval);





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        // update the count interval when the LED count gets to 16





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        // decrement the interval every 16 lots of counts





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        if (speed_up && count % 16 == 0)





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          count_interval /= 2;





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        else if (count % 16 == 0)





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          count_interval *= 2;   





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        if (count % 256 == 0)





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          speed_up = ~ speed_up;





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        // change the count direction every 32 lots of counts





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        if (count % 512 == 0)





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          count_up = ~ count_up;





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    }





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}