stc12c5a60s2_AD采集_12864串行显示终极程序_带滤波.docx

stc12c5a60s2 AD采集 12864串行显示终极程序 带滤波作者：电子工程师 （天津）由于AD采集电压并在12864上显示的程序很常用，然而网上很多程序各种各样，又有很多缺点，所以就利用工作之余的时间对用到的程序进行了整理，调试，优化以方便各位电子爱好者使用。这段程序已经调试通过，改下io即可直接应用。最后有两张效果图。LCD_PSB=0;（并串选择口）LCD_RST =1;（复位口）注意：本程序用的是12864串行显示，将PSB引脚接地，RST拉高、片选口RS接高之后除了电源和地线，只用2根线就可以显示了，接线很方便，最大程度的节省了io口。 本程序是以电流采集为例的，采集的是电流传感器输出的电压，然后转换成电流，如果只需要采集电压的话将转化为电流的语句删除即可。AD是stc12c5a60s2 自带的10位AD。使用很方便。有不明白的可以qq联系我，1264136841#includestc12c5a60s2.h#includeintrins.hfloat ADvalue = 0;unsigned int volage = 0;unsigned int current = 0;void InitializeDisplay();void InitializeLcd12864();void displaystring(unsigned char add,unsigned int num);void WriteCommandLcd12864(unsigned char temp);void InitializeDisplay();void InitializeAD();unsigned int ReadADvalue(unsigned char channel);float SmoothingFilter(unsigned int temp);void Delay_us(unsigned int xus);void Delay_ms(unsigned int xms);sbit LCD_SID = P25;/即RW口sbit LCD_CLK = P26;/即E口code unsigned char name1 = escrewdriver;code unsigned char name2 = 电流采集显示;code unsigned char name3 = 电流： A ;code unsigned char name4 = 参数： mm ;void main()/InitializeAD();/InitializeTimer0();/InitializeUart();InitializeLcd12864();InitializeDisplay();while(1)ADvalue = ReadADvalue(0);/读回AD值ADvalue = ADvalue*5000/1024;/转换成电压值/*if(ADvalue 2500)/防止电压浮动在2.5V以上ADvalue = 2500;ADvalue = 2500-ADvalue;/电流反方向流过传感器，输出电压值小于2.5V，*/current = (ADvalue*8);/计算电流，每0.625V代表7.5A 即每 1V代表12Acurrent = SmoothingFilter(current);/进行一下平滑滤波 displaystring(0x8b,current);displaystring(0x9b,0.5*current);/*延时函数*/ void Delay_us(unsigned int xus)/11.0592MHzwhile(xus-0)_nop_();_nop_();_nop_();void Delay_ms(unsigned int xms)/11.0592MHzunsigned int y=0;for(;xms0;xms-)for(y=0;y600;y+);/*延时函数*/*/*lcd12864显示部分*/*/void InitializeLcd12864()WriteCommandLcd12864(0x30);/基本功能WriteCommandLcd12864(0x0c);/显示开，光标关WriteCommandLcd12864(0x01);/清屏void WriteByteLcd12864(unsigned char temp)unsigned char i;LCD_CLK = 0;for(i=0;i8;i+)if(temp&0x80)LCD_SID = 1;elseLCD_SID = 0;LCD_CLK = 1;Delay_us(10);temp = 1;LCD_CLK = 0;Delay_us(10);void WriteCommandLcd12864(unsigned char temp)WriteByteLcd12864(0xf8);WriteByteLcd12864(temp&0xf0);WriteByteLcd12864(temp4);void WriteDataLcd12864(unsigned char temp)WriteByteLcd12864(0xfa);WriteByteLcd12864(temp&0xf0);WriteByteLcd12864(temp0;length-) WriteDataLcd12864(*temp);temp+; /*显示电压和电流*/void displaystring(unsigned char add,unsigned int num)unsigned char buf10,i;buf0 = num/10000;buf1 = num%10000/1000;buf2 = num%1000/100;buf3 = num%100/10;buf4 = num%10;WriteCommandLcd12864