arduino源代码LCD12864例程包含库

#include "LCD12864_P.h" int LCD12864_E_PORT = 10; int LCD12864_RW_PORT = 11; int LCD12864_RS_PORT = 12; int DB[] = {2, 3, 4, 5, 6, 7, 8, 9}; //******************************************************************** //LCD12864地址设置 //******************************************************************** void LCD12864_Clear() { LCD12864_COM_Write(0x01); } //******************************************************************** //LCD12864地址设置 //******************************************************************** void LCD12864_SET_Address( unsigned char i,unsigned char j) { switch(i) { case 1: LCD12864_COM_Write(0x80+(j-1)); break; case 2: LCD12864_COM_Write(0x90+(j-1)); break; case 3: LCD12864_COM_Write(0x88+(j-1)); break; case 4: LCD12864_COM_Write(0x98+(j-1)); break; default: break; } } //******************************************************************** //BUS OUTPUT //******************************************************************** void LCD12864_DA_PORT(unsigned char value) { unsigned char i; for (i=0; i < 8; i++) { digitalWrite(DB[i],value & 01); value >>= 1; } } //******************************************************************** //LCD12864 忙 信号检测 //******************************************************************** void LCD12864_WaitIdle() { unsigned char i; for (i = 0; i < 8; i++) { pinMode(DB[i], OUTPUT); } // LCD12864_DA_PORT(0xff); digitalWrite(LCD12864_RS_PORT, LOW); // delayMicroseconds(8); digitalWrite(LCD12864_RW_PORT, HIGH); // delayMicroseconds(8); digitalWrite(LCD12864_E_PORT, HIGH); // delayMicroseconds(8); for (i = 0; i < 8; i++) { pinMode(DB[i], INPUT); } while(digitalRead(DB[7])==1); /*等待BF 不为1*/ for (i = 0; i < 8; i++) { pinMode(DB[i], OUTPUT); } digitalWrite(LCD12864_E_PORT, LOW); for(i=0;i<50;i++); } //******************************************************************** //检测忙信号写入命令字 com_da 为待写入的命令字 //******************************************************************** void LCD12864_COM_Write( unsigned char com_da) { LCD12864_WaitIdle(); digitalWrite(LCD12864_RS_PORT, LOW); // delayMicroseconds(8); digitalWrite(LCD12864_RW_PORT, LOW); // delayMicroseconds(8); LCD12864_DA_PORT(com_da); digitalWrite(LCD12864_E_PORT, HIGH); delayMicroseconds(8); digitalWrite(LCD12864_E_PORT, LOW); delayMicroseconds(8); } //******************************************************************** //不检测忙信号写入命令字 com_da 为待写入的命令字 //******************************************************************** void LCD12864_NoWaitIdle_COM_Write(unsigned char com_da) { digitalWrite(LCD12864_RS_PORT, LOW); // delayMicroseconds(8); digitalWrite(LCD12864_RW_PORT, LOW); // delayMicroseconds(8); LCD12864_DA_PORT(com_da); digitalWrite(LCD12864_E_PORT, HIGH); delayMicroseconds(8); digitalWrite(LCD12864_E_PORT, LOW); delayMicroseconds(8); } //******************************************************************** //数据写入 da 为待写入的8位数据 //******************************************************************** void LCD12864_Data_Write(unsigned char da) { LCD12864_WaitIdle(); /*检测忙信号*/ digitalWrite(LCD12864_RS_PORT, HIGH); // delayMicroseconds(8); digitalWrite(LCD12864_RW_PORT, LOW); LCD12864_DA_PORT(da); digitalWrite(LCD12864_E_PORT, HIGH); delayMicroseconds(8); digitalWrite(LCD12864_E_PORT, LOW); delayMicroseconds(8); } //************************************************************************************* //写连续字符函数 //************************************************************************************* void LCD12864_write_word(const char *s) { while(*s>0) { LCD12864_Data_Write(*s); s++; delay(1); } } //******************************************************************** //LCD12864初始化 //******************************************************************** void LCD12864_Reset() { unsigned char i; for (i = 0; i < 8; i++) { pinMode(DB[i], OUTPUT); } pinMode(LCD12864_E_PORT,OUTPUT); pinMode(LCD12864_RS_PORT,OUTPUT); pinMode(LCD12864_RW_PORT,OUTPUT); delay(100); /*适当延时待LCD自动复位完成*/ LCD12864_COM_Write(0x30); /*使用8位并口通讯*/ delay(10); LCD12864_COM_Write(0x30); /*使用8位并口通讯*/ delay(10); LCD12864_COM_Write(0x0c); /*显示开及光标设置*/ delay(10); LCD12864_COM_Write(0x01); /*显示清屏*/ delay(30); LCD12864_COM_Write(0x06); /*DDRAM的地址计数器（AC）加1*/ delay(30); } //void LCD12864_PHOTO_SET() //{ // LCD12864_COM_Write(0x36); // lcd_delay_ms(10); // LCD12864_COM_Write(0x36); // lcd_delay_ms(10); //} // void LCD12864_HAIZI_SET() { LCD12864_COM_Write(0x30); delay(10); LCD12864_COM_Write(0x30); delay(10); }