30 lines
633 B
C
30 lines
633 B
C
#ifndef WRITEPIN_H
|
|
#define WRITEPIN_H
|
|
#include <avr/io.h>
|
|
|
|
|
|
inline void writePin(volatile unsigned char *port, const unsigned char pin, const bool state) //waste 2 cycles
|
|
{
|
|
*port &= ~(1 << pin);
|
|
if(state) *port |= (1 << pin);
|
|
}
|
|
|
|
inline void setBit( volatile unsigned char *reg, const unsigned char bit, bool value )
|
|
{
|
|
writePin(reg, bit, value);
|
|
}
|
|
|
|
|
|
inline void setDirection( volatile unsigned char *portDirReg, const unsigned char pin, bool makeOutput )
|
|
{
|
|
writePin(portDirReg, pin, makeOutput);
|
|
}
|
|
|
|
inline bool readPin( volatile unsigned char *inPort, const unsigned char pin)
|
|
{
|
|
return (bool) (*inPort & (1 << pin));
|
|
}
|
|
|
|
|
|
#endif
|