60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
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#ifndef IO_MACROS_H_INCLUDED
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#define IO_MACROS_H_INCLUDED
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/*
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|| Filename: IO_Macros.h
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|| Title: IO manipulation macros
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|| Author: Efthymios Koktsidis
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|| Email: efthymios.ks@gmail.com
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|| Compiler: AVR-GCC
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|| Description: This library contains macros for
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|| easy port manipulation (similar
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|| to Arduino).
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|| Demo:
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|| 1. #define LED A, 0 || 6. PinModeToggle(BUTTON);
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|| 2. #define BUTTON A, 1 || 7. DigitalWrite(LED, LOW);
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|| 3. || 8. DigitalWrite(LED, HIGH);
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|| 4. PinMode(BUTTON, OUTPUT); || 9. DigitalLevelToggle(LED);
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|| 5. PinMode(LED, OUTPUT); ||10. int a = DigitalRead(BUTTON);
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*/
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#include <avr/io.h>
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//----- I/O Macros -----
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//Macros to edit PORT, DDR and PIN
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#define PinMode( x, y) ( y ? _SET(DDR, x) : _CLEAR(DDR, x) )
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#define DigitalWrite( x, y) ( y ? _SET(PORT, x) : _CLEAR(PORT, x) )
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#define DigitalRead( x) ( _GET(PIN, x) )
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#define PinModeToggle( x) ( _TOGGLE(DDR, x) )
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#define DigitalLevelToggle( x) ( _TOGGLE(PORT, x) )
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//General use bit manipulating commands
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#define BitSet( x, y) ( x |= (1UL<<y) )
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#define BitClear( x, y) ( x &= (~(1UL<<y)) )
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#define BitToggle( x, y) ( x ^= (1UL<<y) )
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#define BitCheck( x, y) ( x & (1UL<<y) ? 1 : 0 )
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//Access PORT, DDR and PIN
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#define PORT( port) (_PORT( port))
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#define DDR( port) (_DDR( port))
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#define PIN( port) (_PIN( port))
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#define _PORT( port) (PORT## port)
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#define _DDR( port) (DDR## port)
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#define _PIN( port) (PIN## port)
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#define _SET( type, port, bit) ( BitSet( (type##port), bit) )
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#define _CLEAR( type, port, bit) ( BitClear( (type##port), bit) )
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#define _TOGGLE(type, port, bit) ( BitToggle( (type##port), bit) )
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#define _GET( type, port, bit) ( BitCheck( (type##port), bit) )
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//Definitions
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#define Input 0
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#define Output !Input
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#define Low 0
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#define High !Low
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#define False 0
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#define True !False
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//------------------
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#endif
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