逆变电源程序

// //main.c，晶振4MHz,20110722，系统测试// #include<pic.h>〃包含单片机内部资源预定义#include<math.h>#include"text.h"//资源定义#include"12864.h"〃显示#include"Initial.h"//初始化#include"keyscan.h"//按键扫描#include"pwm.h"// voidmain(void){Initial。;//调用初始化子函数LCD_lnitial();//LCD初始化子函数LCD_Prints(0,0,"双极性单相SPWM");LCD_Prints(1,0,"逆变器模拟装置")；LCD_Prints(2,0,"频率： Hz");LCD_Prints(3,0,'调制度： =>>");while(1){while(!T0IF);〃判断40ms到否{T0IF=0;TMR0=98;asm("clrwdt");//清看门狗keyscan();〃按键扫描if(spwmint&fer_Hz<50)〃上电初始后,频率自动加到50Hz，调制度自动加到0.98{if(delay>15){fer_Hz+=1;delay=0;mark=1;if((fer_Hz%2)&m<15){m++;xian_m+=2;}}elsedelay++;}else{spwmint=0;LCD_Prints(3,6,"");}if(k2){m++;mark=1;xian_m+=2;}〃有k2键，调制度加0.02，艮卩m加1if(xian_m==102)xian_m=68;if(m>16){m=0;mark=1;}〃调制度范围为0.68~1，共17阶，每阶加0.02if(k1){fer_Hz=fer_Hz+10;mark=1;}〃有k1键，正弦波频率加10Hz

if(kO){fer_Hz=fer_Hz+1;mark=1;}〃有k0键，正弦波频率加1Hzif(fer_Hz>1OO)fer_Hz=10;〃正弦波频率范围为10~100HzR4=fer_Hz/1OO; //显示频率和调制度R5=(fer_Hz%100)/10;R6=fer_Hz%10;LCD_Printc(2,2,0x3A);LCD_Writedata(0x00);LCD_Writedata(0x30+R4);LCD_Writedata(0x30+R5);LCD_Writedata(0x30+R6);R4=xian_m/100;R5=xian_m%100/10;R6=xian_m%10;LCD_Printc(3,3,0x3A);LCD_Writedata(0x30+R4);LCD_Writedata(0x2E);LCD_Writedata(0x30+R5);LCD_Writedata(0x30+R6);if(mark){mark=0;//10~24Hz根据频率确定对应的//10~24Hz根据频率确定对应的抽样次数抽样次数PWMPWM周期if(25<=fer_Hz&fer_Hz<39)sta=1; //25~39Hzif(40<=fer_Hz&fer_Hz<59)sta=2; //40~59Hzif(25<=fer_Hz&fer_Hz<39)sta=1; //25~39Hzif(40<=fer_Hz&fer_Hz<59)sta=2; //40~59Hzif(60<=fer_Hz&fer_Hz<100)sta=3;//60~100Hzswitch(sta){case0: //10~24HzN=100;//预分频数为4PR2_time=((250000/fer_Hz)/N)-1;〃某一频率正弦波对应的一个}}choose_table=1;PR2=PR2_time;pwm_N=25;T2CKPS0=1;for(n=0;n<25;n++)〃计算1/4周期正弦波的PWM正脉宽时间{ 〃结果存于number1[]数组中R0=(tiaom[m]*sin100[n])/255;R1=(R0+1)/2;R2=(R1+128);R3=(R2*PR2_time)/255;number1[n]=R3;//将中断中的查表状态值改为1//修改PWM周期值//1/4抽样数给中断查pwm_high个数//欲分频系数为4

for(n=0;n<25;n++)//表1值移入表0中{number0[n]=number1[n];}choose_table=0; //表值移完，中断查表状态值改为0break;case1://25~39HzN=160;//抽样总数160PR2_time=(1000000/fer_Hz)/N-1;〃某一频率正弦波对应的一个PWM周期for(n=0;n<40;n++)//计算1/4周期正弦波的PWM正脉宽时间{ 〃结果存于number1[]数组中R0=(tiaom[m]*sin160[n])/255;R1=(R0+1)/2;R2=(R1+128);R3=(R2*PR2_time)/255;number1[n]=R3;}choose_table=1; //将中断中的查表状态值改为1PR2=PR2_time; //修改PWM周期值pwm_N=40; //1/4抽样数给中断查pwm_high个数T2CKPS0=0; //欲分频系数为1for(n=0;n<40;n++)//表1值移入表0中{number0[n]=number1[n];}choose_table=0; //表值移完，中断查表状态值改为0break;case2: //40~59HzN=100;//抽样总数100PR2_time=(1000000/fer_Hz)/N-1;〃某一频率正弦波对应的一个PWM周期for(n=0;n<25;n++)〃计算1/4周期正弦波的PWM正脉宽时间{ 〃结果存于number1[]数组中R0=(tiaom[m]*sin100[n])/255;R1=(R0+1)/2;R2=(R1+128);R3=(R2*PR2_time)/255;number1[n]=R3;}choose_table=1; //将中断中的查表状态值改为1PR2=PR2_time; //修改PWM周期值pwm_N=25; //1/4抽样数给中断查pwm_high个数T2CKPS0=0; //欲分频系数为1

PWM周期for(n=0;n<25;n++)PWM周期for(n=0;n<25;n++)//表1值移入表0中{number0[n]=number1[n];}choose_table=0; //表值移完，中断查表状态值改为0break;case3://60~100HzN=76; //抽样总数76PR2_time=(1000000/fer_Hz)/N-1;〃某一频率正弦波对应的一个for(n=0;n<19;n++)〃计算1/4周期正弦波的PWM正脉宽时间{ 〃结果存于number1[]数组中number1[n]=R3;}number1[n]=R3;}choose_table=1;PR2=PR2_time;pwm_N=19;T2CKPS0=0;//将中断中的查表状态值改为1//修改PWM周期值//1/4抽样数给中断查pwm_high个数//欲分频系数为1for(n=0;n<19;n++)//表1值移入表0中number0[n]=number1[n];}choose_table=0; //表值移完，中断查表状态值改为0break;default:break;}//switch(sta)}//if(mark)}//while(!T0IF)}//while(1)}//==================================//中断程序voidinterruptpic(void){TMR2IF=0;pwm();if(A==35){RC0=~RC0;A=0;}A++;/初始化voidInitial(void)//上电复位{if(nPOR==0){PORTA=0x00;PORTB=0x00;PORTC=0x00;PORTD=0X00;PORTE=0X00;}while(nPOR==0){nPOR=1;}OPTION_REG=Ox06;〃分频器给TMRO,128分频TRISA=0x01;TRISB=0xC0;TRISC=OxcO;〃第二个IO口CCP1TRISD=0x00;TRISE=OxOO;ADCON1=0x06;〃全部为数字口//OPTION_REG=0X03;〃定时器0分频系数16TMR0=98;〃定时器初值，定时40ms256*157// //PWM工作方式设置INTC0N=0xC0;〃开总中断和外部中断PIE1=0x02;〃定时器2允许中断PIR1=0x00;TRISC=0x00;TMR2=0X00;CCP1C0N=0X0C;//CCP模块工作在PWM方式T2CON=0X00;〃分频1:1，TMR2ON=1，未启动定时器2TMR2ON=1; //启动定时器2mark=1;spwmint=1;}/* 文件:12864.h*功能:并行LCD显示*平台:PIC16F877A4MHz晶振作者:S_gqing*时间:2011.10IO口定义11为数据TOC\o"1-5"\h\z#defineLCD_RS RC5#defineLCD_RW RC6#defineLCD_EN RC7#defineLCD_BUSY_1RD7#defineT_BUSY TRISD7#defineT_DATA TRISD#defineLCD_DATA_IOPORTD *///指令数据选择位。0为指令//读写选择位。0为写1为读//并口使能位//读忙位//忙状态方向设置位//数据口方向设置〃八位数据10口/*=====================//读忙状态//说明:读到不忙才跳出程序=====================*/〃RS=0,RW=1,E=H,D0~D7=状态字voidLCD_CheckBusy(void){busy=1;RD=0x00; //先置位繁忙标志位TRISD=0xFF; 〃RC口设为输入口LCD_RS=0; //设置该字节数据为命令代码LCD_RW=1; //设置此次操作为读while(busy){asm("N0P");asm("N0P");asm("N0P");LCD_EN=1; //使能asm("N0P");asm("N0P");asm("N0P");if(!RD7)busy=0; 〃检测LCD是否工作繁忙asm("N0P");asm("N0P");asm("N0P");LCD_EN=0; //禁止}LCD_EN=0; //禁止TRISD=0X00; //恢复通信为输出}/*voidLCD_CheckBusy(void){ucharflag=1;LCD_RS=0; //指令LCD_RW=1;//读

T_DATA=0xff;〃RD口设为输入口T_BUSY=1; //设为输入口while(flag){asm("NOP");asm("NOP");LCD_EN=1;//__delay_us(5);asm("NOP");asm("NOP");asm("NOP");asm("NOP");asm("NOP");if(!LCD_BUSY_1)flag=0;LCD_EN=0;}LCD_EN=0;//T_DATA=0x00;//RD设为输出口__delay_us(2);//asm("NOP");asm("NOP");}*//*=====================//写命令到LCD//输入:八位命令__cmd=====================*/voidLCD_Writecmd(ucharcom){LCD_CheckBusy();LCD_RS=0;LCD_RW=0;LCD_DATA_IO=com;LCD_EN=1;//__delay_us(3);asm("NOP");asm("NOP");asm("NOP");LCD_EN=0;}/*======================//写一字节数据到LCD//输入:八位数据__data======================*/voidLCD_Writedata(uchardata){LCD_CheckBusy();LCD_RS=1;LCD_RW=0;LCD_DATA_IO=data;LCD_EN=1;//__delay_us(3);asm("NOP");asm("NOP");asm("NOP");LCD_EN=0;}/*=========================读一个数据到单片机返回数值x=========================*/ucharLCD_Readdata(void){unsignedchardata;LCD_CheckBusy();//检测LCD是否工作繁忙TRISD=0xFF;//RD口设为输入口LCD_RS=1; //设置该字节数据是显示数据LCD_RW=1; //设置该次操作为读LCD_EN=1;asm("NOP");asm("NOP");asm("NOP");data=PORTD; //PORTD口数据送dataLCD_EN=0;//使能TRISD=0x00; //下次循环为输出口returndata;//返回数值data}/*========================//LCD光标定位(行和列定位)//输入:行—row列—line〃说明:row为0~3,line为0~7=========================*/voidLCD_SetPos(ucharrow,ucharline){if(row==0)LCD_Writecmd(0x80+line);elseif(row==1)LCD_Writecmd(0x90+line);elseif(row==2)LCD_Writecmd(0x88+line);elseLCD_Writecmd(0x98+line);}/*=========================//写一字节数据到LCD〃输入:row__行川ne__列,data__数据//说明:row为0~3,line为0~15,data为待显示一字节数据=========================*/voidLCD_Printc(ucharrow,ucharline,uchardata){LCD_SetPos(row,line);LCD_Writedata(data);}/*=========================//写字符串到LCD//输入:row__行川ne__列,*string__字符串的首地址指针〃说明:row为0~3，line为0~15，字符串用常量const修饰=========================*/voidLCD_Prints(ucharrow,ucharline,constuchar*string){LCD_SetPos(row,line);while(*string){LCD_Writedata(*string);string++;}}/*======================//清GDRAM内容======================*/voidLCD_CleanGDRAM(void){ucharx,y;for(y=0;y<64;y++){for(x=0;x<16;x++){LCD_Writecmd(0x34);LCD_Writecmd(0x80+y);〃行地址LCD_Writecmd(0x80+x);〃列地址LCD_Writecmd(0x30);LCD_Writedata(0x00);LCD_Writedata(0x00);}

/*======================//延时程序======================*/voidDelay_LCD(void){uchark;for(k=50;k>0;k++);}/*=========================//LCD初始化=========================*/voidLCD_lnitial(void){//Delay_LCD();__delay_ms(500);//延时50mSLCD_Writecmd(0x30);//选择8位数据，基本指令集LCD_Writecmd(0x30);//选择8位数据，基本指令集//LCD_Writecmd(0x01);//LCD_Writecmd(0x06);LCD_Writecmd(0x0c);//开显示(无游标,观标不闪)LCD_Writecmd(0x01);//清显示，设定地址指针为00HLCD_Writecmd(0x06);//指定在资料的读取和写入时,设定游标的移动方向为右及指定显示的移位LCD_CleanGDRAM();#defineucharunsignedchar#defineuintunsignedint#defineRAPORTA#defineRBPORTB#defineRCPORTC#defineRDPORTD#defineREPORTE//指令数据选择位。//指令数据选择位。0为指令1为数据//读写选择位。0为写1为读//并口使能位//读忙位//忙状态方向设置位//数据口方向设置TOC\o"1-5"\h\z#defineLCD_RS RC5#defineLCD_RW RC6#defineLCD_EN RC7#defineLCD_BUSY_1RD7#defineT_BUSY TRISD7#defineT_DATA TRISD

#defineLCD_DATA_IO// staticvolatilebitxs7staticvolatilebitxs6staticvolatilebitxs5staticvolatilebitxs4staticvolatilebitxs3staticvolatilebitxs2staticvolatilebitxs1staticvolatilebitxs0PORTD〃八位数据#defineLCD_DATA_IO// staticvolatilebitxs7staticvolatilebitxs6staticvolatilebitxs5staticvolatilebitxs4staticvolatilebitxs3staticvolatilebitxs2staticvolatilebitxs1staticvolatilebitxs0@(unsigned)&PORTE*8+2;@(unsigned)&P0RTE*8+1;@(unsigned)&P0RTE*8+0;@(unsigned)&P0RTB*8+5;@(unsigned)&P0RTB*8+4;@(unsigned)&P0RTB*8+3;@(unsigned)&P0RTB*8+2;@(unsigned)&P0RTB*8+1;//定义十二个按键//定义十二个按键staticvolatilebitk0staticvolatilebitk1staticvolatilebitk2staticvolatilebitk3staticvolatilebitk4staticvolatilebitk5staticvolatilebitk6staticvolatilebitk7@(unsigned)&key1*8+0;@(unsigned)&key1*8+1;@(unsigned)&key1*8+2;@(unsigned)&key1*8+3;//定义十二个按键//定义十二个按键staticvolatilebitk0staticvolatilebitk1staticvolatilebitk2staticvolatilebitk3staticvolatilebitk4staticvolatilebitk5staticvolatilebitk6staticvolatilebitk7@(unsigned)&key1*8+0;@(unsigned)&key1*8+1;@(unsigned)&key1*8+2;@(unsigned)&key1*8+3;@(unsigned)&key1*8+4;@(unsigned)&key1*8+5;@(unsigned)&key1*8+6;@(unsigned)&key1*8+7;staticvolatilebitstaticvolatilebitstaticvolatilebitstaticvolatilebitk8@(unsigned)&key2*8+0;k9@(unsigned)&key2*8+1;k10@(unsigned)&key2*8+2;k11@(unsigned)&key2*8+3;staticvolatilebitstaticvolatilebitstaticvolatilebitstaticvolatilebitstaticvolatilebitlk0@(unsigned)&lkey1*8+0;staticvolatilebitlk1@(unsigned)&lkey1*8+1;staticvolatilebitlk2@(unsigned)&lkey1*8+2;staticvolatilebitlk3@(unsigned)&lkey1*8+3;staticvolatilebitlk4@(unsigned)&lkey1*8+4;staticvolatilebitlk5@(unsigned)&lkey1*8+5;staticvolatilebitlk6@(unsigned)&lkey1*8+6;staticvolatilebitlk7@(unsigned)&lkey1*8+7;staticvolatilebitlk8@(unsigned)&lkey2*8+0;staticvolatilebitlk9@(unsigned)&lkey2*8+1;staticvolatilebitlk10@(unsigned)&lkey2*8+2;staticvolatilebitlk11@(unsigned)&lkey2*8+3;

// //定义变量ucharR0,R1,R2,R3,R4,R5,R6,R7;ucharkeycnt;//uchardsbit;//uchardsbuf[8];//uinttimecnt,adcnt,timepwm;//unsignedlongintadbuf;//uchardsfl;//==========================constuchartiaom[17]={173,179,184,189,194,199,204,209,214,219,224,230,235,240,245,250,255};const ucharsin76[19]={3,24,45,66,86,105,124,142,159,175,190,203,215,226,235,242,248,252,254};const ucharsin100[25]={3,19,34,50,66,81,96,111,125,139,152,164,176,188,198,208,217,225,232,238,243,248,251,253,255};constucharsin160[40]={2,12,22,32,41,51,61,71,80,90,99,108,117,126,135,143,151,159,167,174,181,188,195,201,207,213,218,223,228,232,236,240,243,246,248,250,252,253,254,255};ucharPR2_time,choose_way,fer_Hz=10;ucharnumber0[40];ucharnumber1[40];ucharsta,delay;ucharpwm_N,sam_times=O;〃抽样总数，某一次抽样序号中断中读数据状态值ucharn,N,m=0,choose_table=0;bitmark,busy;bitspwmint;ucharxian_m=68;ucharA;// //声明本模块中所调用的函数类型// voidInitial(void); //上电复位//定时、走时//定时、走时//按键扫描voidLCD_lnitial(void);voidkeyscan(void);//voidAD(ucharm,ucharn);//voidMCP41O1O(ucharm);//voidDA12(unsignedintm);//uintAD1O(ucharm,ucharn);#ifndef_XTAL_FREQ//声明4MHz//声明4MHz晶振#endifvoidkeyscan(void) //按键扫描{keycnt++;xs0=xs1=xs2=xs3=xs4=xs5=xs6=xs7=RD7=0;//关显示TRISB=0XF0; //低四位为输入//RD6=1;RD5=0;RD4=1; //(k4~k7)asm("nop");asm("nop");RO=(RBSXfO)&OxfO;R0=R0>>4;// RD4=O;RD5=1;RD6=1; //(kO~k3)//asm("nop");asm("nop");// RO+=((RDAOXOF)&OXOF);// RD6=O;RD5=1;RD4=1; //(k8~k11//asm("nop");asm("nop");//R1=(RDAOXOf)&OxOf;if(RO|R1) //有键?{if(keycnt>=12){keycnt=O;key1=RO;key2=R1;}else{key1=lkey1;key2=lkey2;}}else{key1=key2=O;keycnt=O;}R2=key1;R3=key2;key1=key1&(Ikey"key1);lkey1=R2;key2=key2&(Ikey2Akey2);Ikey2=R3;}// 〃单片机内部1O位AD,入口参数为(adconO,adcon1)//返回为采样到的AD值// uintAD10(ucharm,ucharn){uchari;uintvan;union //定义共用体以存每次AD结果{uinty1;uchary2[2];}ad_temp;van=0;PIE1=0x00;//禁止AD中断ADCON1=n;//设置通道类型参考电压及对其格式PEIE=0;//禁止外设中断PIR1=0x00;//AD中断标志位清零ADCON0=m;//设置AD通道及开ADONi=4;while(i--){;} //采样时间12周期i=8;while(i--)//连续采样8次，求平均值{ADIF=0;//