12864液晶屏(带字库)51单片机3线串口驱动程序.doc

#includetypedef unsigned char uint8;typedef unsigned int uint16;typedef unsigned long uitn32;sbit CS = P10;/片选信号引脚sbit SDA = P11;/数据线sbit SCK = P12;/串行时钟线/sbit RST = P13;/复位引脚/sbit PSB = P14;/串并控制引脚code uint8 strint1 = I Love You !;/*void delay5ms(void) /误差 0us unsigned char a,b; for(b=185;b0;b-) for(a=12;a0;a-);*/发送一个字节void Send_Byte(uint8 dat)uint8 i;SCK = 0;for(i=0;i8;i+)SDA = dat&0x80;SCK = 1;dat = 1;SCK = 0;/读取一个字节数据uint8 Read_Byte(void)uint8 i;uint16 byte = 0;SCK = 0;for(i=0;i16;i+)byte 4)|(byte8)&0x00ff;return (uint8)(byte);/读忙标志void Read_Busy(void)uint8 temp;CS = 1;doSend_Byte(0xfc);/发送读命令temp = Read_Byte();/读取数据while(temp&0x80);CS = 0;/发送命令void Write_Cmd(uint8 cmd)uint8 temph = 0;uint8 templ = 0;/制作发送命令格式temph = cmd & 0xf0;templ = (cmd & 0x0f) 4;Read_Busy();CS = 1;Send_Byte(0XF8);/发送命令命令/发送命令Send_Byte(temph);Send_Byte(templ);CS = 0;/发送数据void Write_Dat(uint8 dat)uint8 temph = 0;uint8 templ = 0;/制作发送数据格式temph = dat & 0xf0;templ = (dat & 0x0f) 4;Read_Busy();CS = 1;Send_Byte(0XFA);/发送数据命令Send_Byte(temph);/发送数据Send_Byte(templ);CS = 0;/在指定位置显示半字宽字符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);/指定位置显示字符串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