[AVR问答]

M16功率表程序+仿真电路

2014-2-23 10:08:05 3518

0 #define F_CPU 4000000UL #include #include til/delay.h> #include #define uchar unsigned char #define uint unsigned int #define uint32 unsigned long const uchar SEG_CODE[] ={"0123456789"}; extern void Write_LCD_Command (uchar cmd); extern void Write_LCD_Data(uchar dat); extern void Initialize_LCD(); extern void LCD_ShowString(uchar x, uchar y,char str); void DePley(uint x,uint c) { uint a=0,b=0 ; uint32 p; a=(int)x5000.0/1023.0; // b=(int)c50000.0/1023.0; b=b-293; p=(long)(a(b/10.0)); Write_LCD_Command(0x80); if ((a/1000)==0) { Write_LCD_Data(' '); } else { Write_LCD_Data(SEG_CODE[a/1000]); } Write_LCD_Data(SEG_CODE[a%1000/100]); Write_LCD_Data('.'); Write_LCD_Data(SEG_CODE[a%100/10]); Write_LCD_Data(SEG_CODE[a%10]); Write_LCD_Data('V'); Write_LCD_Command(0x8a); Write_LCD_Data(SEG_CODE[b/1000]); Write_LCD_Data('.'); Write_LCD_Data(SEG_CODE[b%1000/100]); Write_LCD_Data(SEG_CODE[b%100/10]); Write_LCD_Data(SEG_CODE[b%10]); Write_LCD_Data('A'); Write_LCD_Command(0xC0); if ((p%10000000/1000000) == 0)Write_LCD_Data(' '); else Write_LCD_Data(SEG_CODE[p%10000000/1000000]); if(((p%1000000/100000) == 0)&&((p%10000000/1000000) == 0)) Write_LCD_Data(' '); else Write_LCD_Data(SEG_CODE[p%1000000/100000]); Write_LCD_Data(SEG_CODE[p%100000/10000]); Write_LCD_Data('.'); Write_LCD_Data(SEG_CODE[p%10000/1000]); Write_LCD_Data(SEG_CODE[p%1000/100]); Write_LCD_Data('W'); p=(long)((a10)/b); Write_LCD_Command(0xCB); if ((p%10000/1000)>0) { Write_LCD_Data(' '); Write_LCD_Data('O'); Write_LCD_Data('L'); Write_LCD_Data(' '); } else { Write_LCD_Data(SEG_CODE[p%10000/1000]); Write_LCD_Data(SEG_CODE[p%1000/100]); Write_LCD_Data(SEG_CODE[p%100/10]); Write_LCD_Data(SEG_CODE[p%10]); } Write_LCD_Data('R'); } uint ADC_Convert(uchar CH) { uint addata; //SFIOR =0; //连续转换模式 ADMUX=(CH); //AVCC，AREF引脚外加滤波电容 _delay_us(100); //右对齐，ADC0单端输入 //ADCSRA =0X80; //启动ADC转换 ADCSRA \|=_BV(ADSC); //开始转换 _delay_us(1000); while(!(ADCSRA&(_BV(ADIF)))); //等待转换结束，ADIF置1 addata=ADCL+(ADCH<<8);//addata=(int)(ADCL+(ADCH<<8))5000.0/1023.0; ADCSRA \|=_BV(ADIF); //对ADIF写”1”，ADIF清0 //ADCSRA =0X00; //关闭ADC转换 ADCSRA &=~_BV(ADSC); return addata; }//*/ int main() { uint a=1234,b; DDRD = 0xFF;PORTD=0xFF; DDRB = 0xFF;PORTB=0xFF; DDRC = 0xFF;PORTC=0xFF; DDRA = 0x00;PORTA=0x00; Initialize_LCD(); LCD_ShowString(0,0," Hi VA p1-1 "); ADCSRA = 0xC6; _delay_ms(30000); Write_LCD_Command(0x01); while(1) { a=ADC_Convert(0); b=ADC_Convert(1); DePley(a,b); } } 2 功率表.rar 540.29 KB , 阅读权限: 10 , 下载次数: 37
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