iic.rar_IIC pic_iic pic_pic IIC_pic iic_picplatform

#include<pic.h> #define uchar unsigned char #define uint unsigned int #define add 0x12 __CONFIG(0x3b31); uchar bite,data,num,t,i,k,m,n,a; uchar read_data[6]; uchar table[]={'0','1','2','3','4','5','6','7','8','9','0'}; uchar s[]={0,0,0,0,0,0}; const uchar ee_data[6]; void write_cood(uchar data); void write_data(uchar data); void display(uchar num1,uchar num2,uchar num3,uchar num4,uchar num5,uchar num6); void delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void lcdinit() { TRISD=0; PORTD=0; delay(10); write_cood(0x2c); write_cood(0x0c); write_cood(0x06); write_cood(0x01); } void iicinit() { SSPBUF=0; a=0xc0; i=0; SSPCON=0X38; SSPSTAT=0X80; SSPCON2=0; SSPADD=0X09; TRISC=0xff; } void adinit() { TRISA=0x01; INTCON=0XE0; ADCON0=0x41; ADCON1=0X8e; } uint get_ad() { uint adval; ADGO=1; while(ADGO); adval=ADRESL; return (adval); } void write_data(uchar data) { bite=data; PORTD=bite; RD0=1; RD3=1; RD3=0; PORTD=bite<<4; RD0=1; RD3=1; RD3=0; delay(10); } void write_cood(uchar data) { bite=data; PORTD=bite; RD0=0; RD3=1; RD3=0; PORTD=bite<<4; RD0=0; RD3=1; RD3=0; delay(10); } void write() { uchar i; SSPIF=0; SEN=1; while(!SSPIF); SSPIF=0; SSPBUF=0XA0; while(!SSPIF); SSPIF=0; SSPBUF=add; while(!SSPIF); SSPIF=0; for(i=0;i<6;i++) { SSPBUF=ee_data[i]; while(!SSPIF); SSPIF=0; } PEN=1; while(!SSPIF); SSPIF=0; } void read() { uchar i; SSPIF=0; SEN=1; while(!SSPIF); SSPIF=0; SSPBUF=0XA0; while(!SSPIF); SSPIF=0; SSPBUF=add; while(!SSPIF); SSPIF=0; RSEN=1; while(!SSPIF); SSPIF=0; SSPBUF=0XA1; while(!SSPIF); SSPIF=0; for(i=0;i<6;i++) { RCEN=1; while(!SSPIF); read_data[i]=SSPBUF; while(!SSPIF); SSPIF=0; if(i>=5) { ACKDT=1; } else { ACKDT=0; } ACKEN=1; while(!SSPIF); SSPIF=0; } PEN=1; while(!SSPIF); SSPIF=0; } void display(uchar num1,uchar num2,uchar num3,uchar num4,uchar num5,uchar num6) { write_cood(0x80); data=table[num1]; write_data(data); write_cood(0x81); data=table[num2]; write_data(data); write_cood(0x82); data=table[num3]; write_data(data); write_cood(0x83); data=table[num4]; write_data(data); write_cood(0x84); data=table[num5]; write_data(data); write_cood(0x85); data=table[num6]; write_data(data); } void scan() { if(RB0==1) { delay(20); if(RB0==1) while(RB0); read(); } } void get_key() { while(1) { num=get_ad(); num=(ADRESH<<8)|ADRESL;//获得10位转换数据 if(num<70&&num>55)//判断键值范围 { m=1; } if(num<200&&num>170) { m=2; } if(num<90&&num>80) { m=3; } if(num<55&&num>10) { m=4; } if(num<550&&num>200) { m=5; } if(num<170&&num>140) { m=6; } if(num<140&&num>110) { m=7; } if(num<110&&num>90) { m=8; } if(num<80&&num>70) { m=9; } if(m!=0) { uchar i; i++; ee_data[0]=9; if(i==6) { i=0; } m=0; } } } void main() { lcdinit(); //iicinit(); //write(); //delay(100); //read(); while(1) { //scan(); display(ee_data[1],ee_data[ 2],ee_data[ 3],ee_data[4],ee_data[5],ee_data[6]); } }