22 lines
589 B
C
22 lines
589 B
C
#include "writepin.h"
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void writePin(volatile unsigned char * const port, const unsigned char pin, const bool state)
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{
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*port = (*port & ~(1 << pin)) | (1 << pin)*state;
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}
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void setBit( volatile unsigned char * const reg, const unsigned char bit, const bool value )
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{
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writePin(reg, bit, value);
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}
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void setDirection( volatile unsigned char * const portDirReg, const unsigned char pin, const bool makeOutput )
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{
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writePin(portDirReg, pin, makeOutput);
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}
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bool readPin( volatile const unsigned char * const inPort, const unsigned char pin)
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{
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return (bool) (*inPort & (1 << pin));
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}
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