基于C8051F020的12864液晶顯示

1、./*-文件信息-*文 件 名: 12864屏.C*修 改 人: Helong-*/#include #include #include typedef unsigned char uchar; typedef unsigned int uint;uint count=0;uchar sgewei=0;uchar sshiwei=0;uchar mgewei=0;uchar shuzi1=0;uchar shuzi2=0;uchar shuzi3=0;/函數(shù)聲明void config (void);void LCD_data(unsigned char data_data);void LCD_

2、command(unsigned char com_data);void LCD_Init(void);void Delay1us(unsigned int us);void Delay1ms(unsigned int us);void LCD_BUSY(void);void LCD_shijian(unsigned char out_addr,unsigned char shuzi1,unsigned char shuzi2,unsigned char shuzi3);sbit lcdRW=P32; /5引腳sbit lcdE=P33;/ E或EP 6引腳sbit lcdRS=P31; /D

3、/I 4引腳sbit lcdRST=P30;/lcd復位 17引腳sbit lcdPSB=P34; /15引腳uchar code table1=液晶顯示測試;uchar counter= 0; / 記錄時間-秒/*/* 初始化配置 */*/void config (void) /OVERTIME 2-0bit=111 WDTCN = 0xde; /看門狗禁止 WDTCN = 0xad; /看門狗禁止 /交叉開關允許 XBR0=0x28;/交叉開關配置的幾種配置方案見Text2XBR1=0x0C;XBR2=0x40; P0MDOUT = 0xFF;P1MDOUT = 0xFF;P2MDOUT

4、= 0xFF;P3MDOUT = 0xFF; P74OUT=0xff; /P47口輸出方式配置* EMI0CF=0x13; /EMD2(EMI0CF4)=0,非復用方式; OSCXCN = 0x67;/外部晶振OSCICN = 0x88; /采用內(nèi)部晶振,頻率為 2MHZvoid delay_50us(uint t)uchar j;for(;t0;t-)for(j=19;j0;j-);/*/* 延時子程序 */*/void Delay1ms(unsigned int us) uint x,y;for(x=us;x0;x-)for(y=110;y0;y-); /*寫指令*/ void LCD_c

5、ommand(unsigned char com_data)lcdRW=0;lcdRS=0;delay_50us(1);P4=com_data;lcdE=1;delay_50us(10);lcdE=0;delay_50us(2);/*寫顯示數(shù)據(jù)*void LCD_data(unsigned char data_data)lcdRW=0;lcdRS=1;delay_50us(1);P4=data_data;lcdE=1;delay_50us(10);lcdE=0;delay_50us(2); /*測忙碌*/void LCD_BUSY() P74OUT=0x00; lcdRS=0;Delay1us

6、(500); lcdRW=1;Delay1us(500); lcdE=1;Delay1us(500); P4=0xff;Delay1us(500); while(P4&0x80) lcdE=0;Delay1us(500); lcdE=1;Delay1us(500); lcdE=1; lcdRW=0; P74OUT=0x03; P4=0xff;/*LCD初始化*void LCD_Init(void)Delay1ms(100); LCD_command(0x30);delay_50us(4); LCD_command(0x30);delay_50us(4); LCD_command(0x0c);/

7、開顯示屏delay_50us(4); LCD_command(0x01); /清屏指令delay_50us(240); LCD_command(0x06);delay_50us(10);/*shuzi*void LCD_shijian(unsigned char out_addr,unsigned char shuzi1,unsigned char shuzi2,unsigned char shuzi3) unsigned char i=0;LCD_command(out_addr);LCD_data(shuzi1);LCD_data(:);LCD_data(shuzi2);LCD_data(

8、shuzi3);/-/T0秒表/-/*T0_init T0初始化*/void T0_init() TMOD|=0x01; TH0=0x3C; /0x82; TL0=0xBf; /0x35; IE|=0x82; IP|=0x02; TCON|=0x10; /*Timer0_ISR T0中斷*/void Timer0_ISR (void) interrupt 1 TH0=0x3C; TL0=0xBf; count+; if(count=20) count=0; sgewei+; if(sgewei=(9+1) sgewei=0; sshiwei+; if(sshiwei=5+1) mgewei+; sshiwei=0; /-/主函數(shù)/-void main(void) unsigned char i; config (); T0_init(); LCD_Init(); Delay1ms(500); LCD_command(0x80);for(i=0;i12;i+)LCD_