12864液晶屏(帶字庫)51單片機3線串口驅(qū)動程序.doc

#includetypedef unsigned char uint8;typedef unsigned int uint16;typedef unsigned long uitn32;sbit CS = P10;/片選信號引腳sbit SDA = P11;/數(shù)據(jù)線sbit SCK = P12;/串行時鐘線/sbit RST = P13;/復位引腳/sbit PSB = P14;/串并控制引腳code uint8 strint1 = I Love You !;/*void delay5ms(void) /誤差 0us unsigned char a,b; for(b=185;b0;b-) for(a=12;a0;a-);*/發(fā)送一個字節(jié)void Send_Byte(uint8 dat)uint8 i;SCK = 0;for(i=0;i8;i+)SDA = dat&0x80;SCK = 1;dat = 1;SCK = 0;/讀取一個字節(jié)數(shù)據(jù)uint8 Read_Byte(void)uint8 i;uint16 byte = 0;SCK = 0;for(i=0;i16;i+)byte 4)|(byte8)&0x00ff;return (uint8)(byte);/讀忙標志void Read_Busy(void)uint8 temp;CS = 1;doSend_Byte(0xfc);/發(fā)送讀命令temp = Read_Byte();/讀取數(shù)據(jù)while(temp&0x80);CS = 0;/發(fā)送命令void Write_Cmd(uint8 cmd)uint8 temph = 0;uint8 templ = 0;/制作發(fā)送命令格式temph = cmd & 0xf0;templ = (cmd & 0x0f) 4;Read_Busy();CS = 1;Send_Byte(0XF8);/發(fā)送命令命令/發(fā)送命令Send_Byte(temph);Send_Byte(templ);CS = 0;/發(fā)送數(shù)據(jù)void Write_Dat(uint8 dat)uint8 temph = 0;uint8 templ = 0;/制作發(fā)送數(shù)據(jù)格式temph = dat & 0xf0;templ = (dat & 0x0f) 4;Read_Busy();CS = 1;Send_Byte(0XFA);/發(fā)送數(shù)據(jù)命令Send_Byte(temph);/發(fā)送數(shù)據(jù)Send_Byte(templ);CS = 0;/在指定位置顯示半字寬字符void Dis_HCGROM(uint8 x,uint8 y,uint8 dat)uint8 addr;switch(y)case 0:addr = 0x80 + x;break;case 1:addr = 0x90 + x;break;case 2:addr = 0x88 + x;break;case 3:addr = 0x98 + x;break;default:break;Write_Cmd(addr);Write_Dat(dat);/指定位置顯示字符串void Dis_String(uint8 x, uint8 y, uint8 len, uint8 *dat)uint8 addr,i;switch(y)case 0:addr = 0x80 + x;break;case 1:addr = 0x90 + x;break;case 2:addr = 0x88 + x;break;case 3:addr = 0x98 + x;break;default:break;Write_Cmd(addr);for(i = 0;i 8);Write_Dat(uint8)(dat);/LCD初始化void LCD_Init(void)/*RST = 0;delay5ms();delay5ms();RST = 1;PSB = 0;*/Write_Cmd(0X30);Write_Cmd(0X01);Write_Cmd(0X02);Write_Cmd(0X0C);void main(void)LCD_Init();whi