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51单片机和TLC2543做的数字电压表的proteus仿真及源程序都有.
- #include "led.h"
- #include "TLC2543.h"
- const uchar code displayMode=0x0f;
- uchar displayBuff[4]={0x7e,0x7e,0x7e,0x7e}; //数码管显示缓冲区,低两位为时间,最高位为抢答号
- const uchar code digitalNumber[10]={0x7e,0x06,0x6d,0x79,0x33,0x5b,0x5f,0x70,0x7f,0x73};
- void main()
- {
- uint voltageReadTemp;
- uint voltageRead;
- uchar temp;
- uchar i,j;
- init_led();
- while(1)
- {
- ledSweepDisplay(displayBuff,displayMode,4);
- voltageRead=read_TLC2543(0x05);
- voltageRead=voltageRead*0x05;
- for(i=4;i>0;i--)
- {
- temp=(uchar)(voltageRead/0x0fff);
- if(i==4)
- displayBuff[i-1]=digitalNumber[temp]|0x80;
- else
- displayBuff[i-1]=digitalNumber[temp];
- voltageRead=voltageRead%0x0fff;
- voltageReadTemp=voltageRead<<1;
- voltageRead=0x0000;
- for(j=0;j<5;j++)
- voltageRead+=voltageReadTemp;//voltageRead=voltageRead*10
-
- }
- }
-
- }
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数字电压表.rar
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