shuzidianyabiao.rar_iar怎么看电压_shuzidianyabiao

#include <msp430x14x.h> #define uint unsigned int #define uchar unsigned char /******************************************define lcd******/ #define LCD_CS BIT2 #define LCD_DAT BIT4 #define LCD_SCK BIT3 #define WR BIT2 #define RS BIT1 /************************************************************/ uchar charge=0; uchar SYNCH=0xfe; //LCD显示同步字 static uchar adc_flag=0; static uchar time_flag=0; static uchar count=0; uint AD_TEMP=0; float AD=0; void int_clk() { uchar i; BCSCTL1&=~XT2OFF; //打开XT振荡器 BCSCTL2|=SELM1+SELS;//MCLK 8M and SMCLK 1M do { IFG1 &= ~OFIFG; //清除振荡错误标志 for(i = 0; i < 100; i++) _NOP(); //延时等待 } while ((IFG1 & OFIFG) != 0); //如果标志为1继续循环等待 IFG1&=~OFIFG; } void get_clk() { P6DIR|=LCD_SCK; _NOP(); P6OUT&=~LCD_SCK; _NOP(); _NOP(); _NOP(); _NOP(); _NOP(); P6OUT|=LCD_SCK; _NOP(); _NOP(); _NOP(); _NOP(); _NOP(); _NOP(); _NOP(); } void inport(uchar com,uchar dat)//com=1,rs=1,com=0,rs=0; { uchar i,temp; P6DIR|=LCD_DAT; P6DIR|=LCD_CS; P6OUT|=LCD_CS; temp=SYNCH; temp&=~WR; if(com) temp|=RS; else temp&=~RS; for(i=0;i<=7;i++) { if(temp<<i&0x80) P6OUT|=LCD_DAT; else P6OUT&=~LCD_DAT; get_clk(); } temp=dat&0xf0; for(i=0;i<=7;i++) { if(temp<<i&0x80) P6OUT|=LCD_DAT; else P6OUT&=~LCD_DAT; get_clk(); } temp=dat&0x0f; temp=temp<<4; for(i=0;i<=7;i++) { if(temp<<i&0x80) P6OUT|=LCD_DAT; else P6OUT&=~LCD_DAT; get_clk(); } P6OUT|=LCD_DAT; P6OUT&=~LCD_CS; } print_string(uchar add,uchar *pt) { uchar i; inport(0x00,add); for(i=0;;i++) { if(*pt=='\n') break; inport(0x01,*pt); pt++; } } print_han(uchar h_neima,uchar l_neima)\ { inport(0x01,h_neima); inport(0x01,l_neima); } print_float(float data) { uint temp; uchar a1,a2,a3,a4; temp=data*1000; a1=temp/1000; a2=(temp-a1*1000)/100; temp=(temp-a1*1000)-a2*100; a3=temp/10; a4=temp%10; inport(0x01,a1+0x30); inport(0x01,'.'); inport(0x01,a2+0x30); inport(0x01,a3+0x30); inport(0x01,a4+0x30); } void int_lcd() { inport(0x00,0x30); inport(0x00,0x01); inport(0x00,0x02); inport(0x00,0x0c); inport(0x00,0x06); } int_adc() { P6SEL|=0x01; //选择AD通道 ADC12CTL0|=ADC12ON+SHT0_2+REF2_5V+REFON; // //采样保持时间为16个ADC12CLK ADC12CTL1|=ADC12SSEL1+ADC12SSEL1; //参考电压开启，选择2.5V ADC12MCTL0=0x10; // ref+=REF2_5V, channel = A0 ADC12IE|=0x01; // 使能转换中断 ADC12CTL0|=ENC; // 使能AD转换器 } #pragma vector=ADC_VECTOR __interrupt void ADC12ISR (void) { while((ADC12CTL1&0X01)==1);//等待转换完 adc_flag=1; AD_TEMP=ADC12MEM0;//设置ADC转换完标志，并且读取ADC值 } void int_timer() { TACTL|=TASSEL1+TACLR+ID0+ID1;//选择SMCLK作为定时器的时钟，8分频 TACTL|=MC0+TAIE;//增加模式，并且使能中断 TACCR0=9999;//中断周期为10ms } #pragma vector=TIMERA1_VECTOR __interrupt void Timer_A(void) { switch(TAIV) { case 2:break; case 4:break; case 10:if(adc_flag==0){ADC12CTL0 |= ADC12SC;ADC12CTL0 &= ~ADC12SC;}break;//10ms中断标志加1 default:break; } } int main( void ) { WDTCTL=WDTPW+WDTHOLD;//关闭看门狗 int_clk(); //系统时钟初始化 int_adc();//初始化串口 int_lcd(); //初始化LCD int_timer(); //初始化TIMER _EINT(); //使能中断 while(1) { while(adc_flag==1) { AD+=AD_TEMP; count++; if(count==100) { AD=AD/100; AD=(AD*2.5/4096); inport(0x00,0x80); print_han(0xb5,0xe7); print_han(0xd1,0xb9);//电压 inport(0x01,':'); print_float(AD); inport(0x01,'V');//显示电压值 AD=0; count=0; AD_TEMP=0;//变量清零 } adc_flag=0;//清中断标志 } } }