display.i

mega8产生的两路PWM信号

// CodeVisionAVR C Compiler
// (C) 1998-2004 Pavel Haiduc, HP InfoTech S.R.L.

// I/O registers definitions for the ATmega8


#pragma used+
sfrb TWBR=0;
sfrb TWSR=1;
sfrb TWAR=2;
sfrb TWDR=3;
sfrb ADCL=4;
sfrb ADCH=5;
sfrw ADCW=4;      // 16 bit access
sfrb ADCSRA=6;
sfrb ADMUX=7;
sfrb ACSR=8;
sfrb UBRRL=9;
sfrb UCSRB=0xa;
sfrb UCSRA=0xb;
sfrb UDR=0xc;
sfrb SPCR=0xd;
sfrb SPSR=0xe;
sfrb SPDR=0xf;
sfrb PIND=0x10;
sfrb DDRD=0x11;
sfrb PORTD=0x12;
sfrb PINC=0x13;
sfrb DDRC=0x14;
sfrb PORTC=0x15;
sfrb PINB=0x16;
sfrb DDRB=0x17;
sfrb PORTB=0x18;
sfrb EECR=0x1c;
sfrb EEDR=0x1d;
sfrb EEARL=0x1e;
sfrb EEARH=0x1f;
sfrw EEAR=0x1e;   // 16 bit access
sfrb UBRRH=0x20;
sfrb UCSRC=0X20;
sfrb WDTCR=0x21;
sfrb ASSR=0x22;
sfrb OCR2=0x23;
sfrb TCNT2=0x24;
sfrb TCCR2=0x25;
sfrb ICR1L=0x26;
sfrb ICR1H=0x27;
sfrw ICR1=0x26;   // 16 bit access
sfrb OCR1BL=0x28;
sfrb OCR1BH=0x29;
sfrw OCR1B=0x28;  // 16 bit access
sfrb OCR1AL=0x2a;
sfrb OCR1AH=0x2b;
sfrw OCR1A=0x2a;  // 16 bit access
sfrb TCNT1L=0x2c;
sfrb TCNT1H=0x2d;
sfrw TCNT1=0x2c;  // 16 bit access
sfrb TCCR1B=0x2e;
sfrb TCCR1A=0x2f;
sfrb SFIOR=0x30;
sfrb OSCCAL=0x31;
sfrb TCNT0=0x32;
sfrb TCCR0=0x33;
sfrb MCUCSR=0x34;
sfrb MCUCR=0x35;
sfrb TWCR=0x36;
sfrb SPMCR=0x37;
sfrb TIFR=0x38;
sfrb TIMSK=0x39;
sfrb GIFR=0x3a;
sfrb GICR=0x3b;
sfrb SPL=0x3d;
sfrb SPH=0x3e;
sfrb SREG=0x3f;
#pragma used-

// Interrupt vectors definitions





extern void delay_us(unsigned int i);
extern void ini_xt(void);
extern unsigned char get_key(void);
extern void display(void);

extern unsigned int ch1,ch2;        //通道1，通道2，

extern unsigned char fs,td;         //方式（输入输出）,输入通道,ADC结果指针

extern unsigned char in0,in1;	    //外部中断次数

extern unsigned int js1,js2;       //转速计数 

extern unsigned char zz;       //AD转换切换

extern const unsigned char sz[];


//打印显示
void display(void)
{unsigned char i,j,k;

 switch(fs)
        {case 1:PORTC.3=0;PORTC.4=1;break;       //红灯亮-双脉宽输出
		 case 2:PORTC.3=1;PORTC.4=0;break;       //绿灯亮-双脉宽输入
		 case 3:PORTC.3=1;PORTC.4=1;break;       //红绿灯亮-数字舵机
		 case 4:PORTC.3=0;PORTC.4=0;break;}      //红绿灯灭-转速测量
 switch(fs){case 1:j=90;break;case 2:j=0;break;case 3:j=0;break;case 4:j=0;break;}
 if(fs==4)k=0;else k=128;
 for(i=0;i<10;i++)                         //扫描数码管
     {PORTB=sz[(ch1/8+j)/100]+k;PORTD.0=0;delay_us(50);PORTD.0=1;
	  PORTB=sz[(ch1/8+j)/10%10];PORTD.1=0;delay_us(50);PORTD.1=1;
	  PORTB=sz[(ch1/8+j)%10];PORTD.4=0;delay_us(50);PORTD.4=1;
	  PORTB=sz[(ch2/8+j)/100]+k;PORTD.5=0;delay_us(50);PORTD.5=1;
	  PORTB=sz[(ch2/8+j)/10%10];PORTD.6=0;delay_us(50);PORTD.6=1;
	  PORTB=sz[(ch2/8+j)%10];PORTD.7=0;delay_us(50);PORTD.7=1;
	  } 

 }