hardware.h

基于AVR单片机的１２段LED管灯控制程序

#ifndef _HARDWARE_H_
#define _HARDWARE_H_

#include <avr/wdt.h>

#ifndef BYTE                               
   #define BYTE   unsigned char  
#endif   

#ifndef WORD 
   #define WORD   unsigned int
#endif
//------------------------------------------------------------------
#define WDTO_TIMEOUT		WDTO_500MS

#define CPUCLK				F_CPU		// CPU xtal
#define TICKRATE			1000 		// AvrX timer queue Tick rate

#define T0MC8_CK256			_BV(CS02)
#define TCNT0_INIT			(0xFF - CPUCLK / 256 / TICKRATE)

#define DISPLAY_SCAN_RATE	8000
#define T2MC8_CK8			_BV(CS21)
#define T2MC8_CK64			_BV(CS22)
#define T2MC8_CK256			(_BV(CS22) | _BV(CS21))
#define TCNT2_INIT			(0xFF - CPUCLK / 8 / DISPLAY_SCAN_RATE)

//------------------------------------------------------------------
#define Set_Sdi() PORTD |= _BV(PD4)
#define Clr_Sdi() PORTD &= ~_BV(PD4)

#define Set_Clk() PORTD |= _BV(PD3)
#define Clr_Clk() PORTD &= ~_BV(PD3)

#define Set_Stb() PORTD |= _BV(PD1)
#define Clr_Stb() PORTD &= ~_BV(PD1)

#define Set_Oe() PORTD |= _BV(PD0)
#define Clr_Oe() PORTD &= ~_BV(PD0)
//------------------------------------------------------------------
#endif /* _HARDWARE_H_ */