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avr_demo/arduino_lite/analog.h

23 lines
797 B
C

#ifndef ANALOG_H
#define ANALOG_H
#include "pins.h"
#define PWM_ENABLE(pin) EXPAND_WRAPPER(_PWM_ENABLE ,ARDUINOPIN_TO_TCCRID(pin) , ARDUINOPIN_TO_TIMERID(pin) )
#define PWM_DISABLE(pin) EXPAND_WRAPPER(_PWM_DISABLE ,ARDUINOPIN_TO_TCCRID(pin) , ARDUINOPIN_TO_TIMERID(pin) )
#define PWM_SET(pin, val) EXPAND_WRAPPER(_PWM_SET, ARDUINOPIN_TO_TIMERID(pin), val )
#define analog_write( pin, val ) \
do{ \
PWM_ENABLE(pin); \
PWM_SET(pin,val); \
} \
while(0)
#define PWM_SET_SAFE(pin, val) \
do{ \
if (val) {PIN_MODE(pin,OUTPUT);PWM_SET(pin, val);} \
else PIN_MODE(pin, INPUT); \
}while(0)
#endif /* ANALOG_H */