LCDdriver.rar_0802_0802a_concerned7v5

//P2.0-RS;P2.1-RW;P2.2-E;P2.3-PSB;P2.5RST;P0-DATABUS; #include "STC89C51.H" #include "intrins.h" #define uchar unsigned char #define uint unsigned int #define BUS P1 sbit RS = P2^0; sbit RW = P2^1; sbit E = P2^2; sbit PSB = P2^3; sbit RST = P2^5; bit command = 0; uchar data_receive[4] = {0,0,0,0}; uchar rec_num = 0; void Delay(uint k)//延时函数 { uint i; do { i = 50; while(i)i--; k--; } while(k > 0); } void LcdBusy(void)//检测LCD模块是否空闲，可以接收指令，等待，直到模块空闲 { RS = 0;//RS:H数据，L:指令 RW = 1;//RW:H:读，L:写 BUS = 0xFF;//单片机I/O口在读数据前拉到高电平才能正确读取 while(1) { E = 1;//E:并口读写起始脚 if(BUS < 0x80)break;//BUS的最高位为忙标志为，BUSY:H:忙，L:空闲 E = 0;//结束读指令 } E = 0;//结束读指令 } void SentAIns(uchar Ins)//写入一个指令 { LcdBusy();//等待模块空闲 RS = 0;//RS:H数据，L:指令 RW = 0;//RW:H:读，L:写 E = 1;//E电平从高到低写入总线上的数据 BUS = Ins & 0xFF; E = 0; } void SentAData(uchar Data)//写入一个数据 { LcdBusy();//等待模块空闲 RS = 1;//RS:H数据，L:指令 RW = 0;//RW:H:读，L:写 E = 1;//E电平从高到低写入总线上的数据 BUS = Data & 0xFF; E = 0; } uchar ReadAData(void)//读取显示RAM数据 { uchar temp; LcdBusy();//等待模块空闲 RS = 1;//RS:H数据，L:指令 RW = 1;//RW:H:读，L:写 E = 1;//E电平从高到低写入总线上的数据 temp = BUS; E = 0; return(temp); } void LcdInit(void)//模块初始化 { RST = 0;//RST由低到高 Delay(10); RST = 1; Delay(50); SentAIns(0x30);//写入功能设置指令 Delay(50); SentAIns(0x30);//写入功能设置指令 Delay(50); SentAIns(0x0C);//写入显示指令，整体显示开，游标、反白关 Delay(50); SentAIns(0x01);//写入清屏指令 Delay(50); SentAIns(0x06);//写入进入电设置指令，方向向右，默认位移 } void SetCGRAM(uchar N,uchar *Font)//自定义字体，四个，N代表某一个，*Font指向数据 { uchar i; SentAIns(0x30);//进入普通模式 SentAIns(0x30 + N*16);//进入CGRAM自定义字体 for(i=0;i<32;i++) { SentAData(*(Font++)); } } void DisPicFull(uchar *PicData)//满屏显示画面函数，图像大小为128×64，将要写的图片的字模写入PicDa[]数组中 { uchar i,j; SentAIns(0x01);//清屏清除RAM SentAIns(0x34);//扩展指令集 SentAIns(0x34);//绘图显示关 for(i=0;i<16;i++)//第一行 { SentAIns(0x80 + i);//写入Y地址，16行 SentAIns(0x80);//写入X地址，上半屏0x80-0x87 for(j=0;j<16;j++)//循环16次，总共8×2字节数据要输入，从左至右 { SentAData(*(PicData++));//写入图片数据 } } for(i=0;i<16;i++)//第二行 { SentAIns(0x90 + i);//写入Y地址，16行 SentAIns(0x80);//写入X地址，上半屏0x90-0x97 for(j=0;j<16;j++)//循环16次，总共8×2字节数据要输入，从左至右 { SentAData(*(PicData++));//写入图片数据 } } for(i=0;i<16;i++)//第三行 { SentAIns(0x80 + i);//写入Y地址，16行 SentAIns(0x88);//写入X地址，上半屏0x89-0x8F for(j=0;j<16;j++)//循环16次，总共8×2字节数据要输入，从左至右 { SentAData(*(PicData++));//写入图片数据 } } for(i=0;i<16;i++)//第四行 { SentAIns(0x90 + i);//写入Y地址，16行 SentAIns(0x98);//写入X地址，上半屏0x90-0x9F for(j=0;j<16;j++)//循环16次，总共8×2字节数据要输入，从左至右 { SentAData(*(PicData++));//写入图片数据 } } SentAIns(0x36);//绘图显示开 SentAIns(0x30);//进入普通模式 } void main(void) { uchar code PicData[1024] = //128×64图像的字模 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 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