BPI-M1+ wiringPi PWM

[炫Q七号]

#include <wiringPi.h>
//
// by MikuQ([email protected]) 2016-5-26
//
int main(void)
{
  int bright ;
  wiringPiSetup() ;
  pinMode (7, PWM_OUTPUT) ;
  for (;; )
  {
   for (bright = 0 ; bright < 1024 ; bright+=5)
   {
   pwmWrite (7, bright) ;
   delay (1) ;
   }

   for (bright = 1023 ; bright >= 0 ; bright-=5)
   {
   pwmWrite (7, bright) ;
   delay (1) ;
   }
  }
}