13 #define START 0x44e00000 // see datasheet of AM335x
15 #define OFFSET_1 0xcc // offset of PWM1 clock (see datasheet of AM335x p.1018)
16 #define FREQ 50 //50Hz pwm frequency for pressure regulator
21 void pwm_set_duty(int duty_percent);
22 void pwm_set_period(int freq);