简易自动电阻测试仪(4)

Set_lcd_e();

Cls_lcd_e(); Set_lcd_e(); // for(i=200;i>0;i--);

// for(i=10;i>0;i--);

rdlcddata=PINA; // Cls_lcd_e(); // for(i=200;i>0;i--); // Set_lcd_e(); //for(i=200;i>0;i--); rdlcddata=PINA;

Cls_lcd_e(); DDRA=0xff; return rdlcddata; }

//读命令字

unsigned char Rd_lcd_cmd(void) {

unsigned char rdlcdcmd,i; // for(i=100;i>0;i--); // Set_lcd_rs(); Cls_lcd_e(); Cls_lcd_rs(); Set_lcd_rw(); Cls_lcd_e(); DDRA=0x00; PORTA=0xff; Set_lcd_e();

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// for(i=200;i>0;i--); rdlcdcmd=PINA; Cls_lcd_e(); DDRA=0xff; return rdlcdcmd; }

/////////////////////////////// //lcd 初始化 void Lcd_ini(void) {

Set_lcd_cs1(); Set_lcd_cs2();

Wr_lcd_cmd(0xc0);//起始行0 Wr_lcd_cmd(0xb8);//页地址0 Wr_lcd_cmd(0x40);//列地址0 Wr_lcd_cmd(0x3f);//开显示 }

/////////////////////////////// //lcd 忙？//////////////////// unsigned char Lcd_busy(void) {

unsigned char lcdbusy; lcdbusy=Rd_lcd_cmd();

if((lcdbusy&&0x80)||(lcdbusy&&0x10)) return 1; else return 0; }

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/*------------------清屏---------------*/ void Clr_Scr(void) {

unsigned char j,k; //CS1=1;CS2=1; Set_lcd_cs1(); Set_lcd_cs2();

Wr_lcd_cmd(Col_Addr); for(k=0;k<8;k++){

Wr_lcd_cmd(Page_Addr+k); for(j=0;j<64;j++) Wr_lcd_data(0x00); } }

//////////////////// //////////画点/////////

void pset(unsigned char x1,unsigned char y1, unsigned char data) {

unsigned char pagex; unsigned char x; unsigned char temp;

if((x1>63)||(y1>127)) { return; } else {

if(y1>63) {

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Set_lcd_cs2(); Cls_lcd_cs1(); } else {

Set_lcd_cs1(); Cls_lcd_cs2();

}

y1=y1d; pagex=x1/8;

Wr_lcd_cmd(0xb8+pagex); Wr_lcd_cmd(0x40+y1); temp=Rd_lcd_cmd();

x=x1-pagex*8; temp=temp&((0<

temp=temp^(data<

} }

////////////////////////////////////////////// ////////////////////////////////////////////// ///////////////显示字符串

//输入：起始行，列号，字符串 //字库为自编字库 //

unsigned char printstr(unsigned char hang,unsigned char lie,unsigned char *str)

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{

unsigned char c;

unsigned char i,j,lcdpart,lcdcur; i=0; j=0; lcdpart=0; lcdcur=0; Set_lcd_cs1(); Cls_lcd_cs2(); if((lie>=16)||(hang>=4)) return 0; i=lie; while(*str) { if(i<8)

{ if(lcdcur!=0) {

Set_lcd_cs1(); Cls_lcd_cs2(); lcdcur=0; } } else {

if(lcdcur!=1) {

Set_lcd_cs2(); Cls_lcd_cs1(); lcdcur=1; j=8; }

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