STC12C5A60S2.AD转换用数码管显示.docx

#includestc12c5a.h #includestdio.h#includeintrins.h/-void AD_init();void serial_init();void delay(unsigned int a);float AD_work(unsigned char channel);unsigned int AD_get(unsigned char channel);void chu(long);unsigned char code table=0x06,0x7e,0x25,0x64,0x5c,0xc4,0x84,0x76,0x04,0x44;/带点的0-9,由于我的数码管连法不一样 所以代码不一样unsigned char code table1=0x02,0x7a,0x21,0x60,0x58,0xc0,0x80,0x72,0x00,0x40;/不带点unsigned char shi,ge,fen1;long R;sbit feng=P01;sbit ji=P07;sbit dian=P06;/-void display()shi=R/1000;ge=R%1000/100;fen1=R%100/10;P2=0X08;P3=tablege;delay(5);P2=0X04;P3=tablefen1;delay(5);P2=0X02;P3=table1shi;delay(5);void main()char k;int b=0;P0=0X00;AD_init(); /A/D转换初始化serial_init(); /串口初始化while(1)unsigned char i; i=0;/ P10口，i=n 则是P1n口 TI=1;chu(AD_work(i); if(b!=0)R=b;for(k=100;k0;k-) /使用printf函数前须先将发送标志位TI置1 display(); TI=0; if(R=8000)&(R=6000)&(R=6500)b=R;P0=0XF2;delay(200);P0=0xf0;delay(200); /-unsigned int AD_get(unsigned char channel)ADC_CONTR=0x88|channel; /开启AD转换1000 1000 即POWER SPEED1 SPEED0 ADC_FLAG ADC_START CHS2 CHS1 CHS0 _nop_(); _nop_(); _nop_(); _nop_();/要经过4个CPU时钟的延时，其值才能够保证被设置进ADC_CONTR 寄存器while(!(ADC_CONTR&0x10); /等待转换完成ADC_CONTR&=0xe7; /关闭AD转换，ADC_FLAG位由软件清0return(ADC_RES*4+ADC_RESL); /返回AD转换完成的10位数据(16进制)/-float AD_work(unsigned char channel)double AD_val,AD_vale; /定义处理后的数值AD_val为浮点数unsigned char i;for(i=0;i0;i-); /1T单片机i=600，若是12T单片机i=125/-void serial_init()TMOD=0x20;TH1=0xfd;TL1=0xfd; /设置9600波特率SCON=0x50; /串口方式1，允许接收TR1=1;/-void AD_init()P1ASF=0xff; /P1口全部作为模拟功能AD使用ADC_RES=0; /清零转换