基于单片机的CO浓度检测及报警系统设计与制作要点

char code Kg_K[]={ // 字母K 8*16 //

0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,

};

nsigned char code FirstPage[]={ // 开机画面 DPY工作室 // void delay(unsigned int t) //延时// {

unsigned int i,j; for(i=0;i

/*------------------------写命令到LCD------------------------------*/ void write_command(unsigned char cmdcode) { RS = 0; RW = 0; P0 = cmdcode; delay(0); E = 1; delay(0); E = 0; }

/*-------------------------写数据到LCD----------------------------*/ void write_data(unsigned char Dispdata)

/*------------------------清显示屏--------------------------------*/ void Clr_Scr() {

unsigned char j ,k;

CS2=1;CS1=0; // 清左半屏 // {

write_command(Page_Add+0);

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write_command(Col_Add+0);

for(k=0;k<4;k++) // 清左上半屏 // {

// write_command(Page_Add+k);

for(j=0;j<64;j++)

write_data(0x00); }

for(k=0;k<4;k++) {

write_command(Page_Add+4); for(j=0;j<64;j++)

write_data(0x00);

} }

CS2=0;CS1=1; {

write_command(Page_Add+0); write_command(Col_Add+0);

for(k=0;k<4;k++) {

for(j=0;j<64;j++)

write_data(0x00);

}

for(k=0;k<4;k++) {

write_command(Page_Add+4);

for(j=0;j<64;j++)

write_data(0x00);

} } }

// 清左下半屏 // // 清右半屏 // // 清右上半屏 // // 清右下半屏 // 40

/*------------------显示12864图片------------------------------*/ void Disp_Img(unsigned char code *img)

/*---------------------指定位置显示数字8*16----------------*/

void sz_disp16(unsigned char pag,unsigned char col,unsigned char mod, unsigned char code *szk) {

unsigned char j=0,i=0; for(j=0;j<2;j++) {

write_command(Page_Add+pag+j); write_command(Col_Add+col); for(i=0;i<8;i++)

if(mod)

write_data(szk[8*j+i]); else

write_data(~szk[8*j+i]);

} }

/*-----指定位置显示汉字16*16-----------------------*/

void hz_disp16(unsigned char pag,unsigned char col, unsigned char mod,unsigned char code *hzk)

/*------------------初始化LCD屏--------------------------*/ void init_lcd() { RST=0; delay(100); RST=1; delay(100); CS2=1; CS1=1; delay(100);

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write_command(Disp_Off); write_command(Page_Add+0); write_command(Start_Line+0); write_command(Col_Add+0);

write_command(Disp_On); }

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