ssd1303.h

OLED的应用程序

#ifndef  _SSD1303_H_
#define  _SSD1303_H_

//以下为接口定义，根据用户的实验板接口不同而自行定义

#define DAT P1
sbit RD=P3^2;
sbit DC=P3^3;
sbit RES=P3^4;
sbit CS=P3^5;
sbit WR=P3^7;
unsigned char code num[10][16]={
{0x00,0x00,0x07,0xF0,0x08,0x08,0x10,0x04,0x10,0x04,0x08,0x08,0x07,0xF0,0x00,0x00},/*"0"*/
{0x00,0x00,0x08,0x04,0x08,0x04,0x1F,0xFC,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00},/*"1"*/
{0x00,0x00,0x0E,0x0C,0x10,0x14,0x10,0x24,0x10,0x44,0x11,0x84,0x0E,0x0C,0x00,0x00},/*"2"*/
{0x00,0x00,0x0C,0x18,0x10,0x04,0x11,0x04,0x11,0x04,0x12,0x88,0x0C,0x70,0x00,0x00},/*"3"*/
{0x00,0x00,0x00,0xE0,0x03,0x20,0x04,0x24,0x08,0x24,0x1F,0xFC,0x00,0x24,0x00,0x00},/*"4"*/
{0x00,0x00,0x1F,0x98,0x10,0x84,0x11,0x04,0x11,0x04,0x10,0x88,0x10,0x70,0x00,0x00},/*"5"*/
{0x00,0x00,0x07,0xF0,0x08,0x88,0x11,0x04,0x11,0x04,0x18,0x88,0x00,0x70,0x00,0x00},/*"6"*/
{0x00,0x00,0x1C,0x00,0x10,0x00,0x10,0xFC,0x13,0x00,0x1C,0x00,0x10,0x00,0x00,0x00},/*"7"*/
{0x00,0x00,0x0E,0x38,0x11,0x44,0x10,0x84,0x10,0x84,0x11,0x44,0x0E,0x38,0x00,0x00},/*"8"*/
{0x00,0x00,0x07,0x00,0x08,0x8C,0x10,0x44,0x10,0x44,0x08,0x88,0x07,0xF0,0x00,0x00} /*"9"*/
};
//****************************主要操作函数************************************
void WriteCommand(unsigned com);		//写命令程序
void WriteData(unsigned dat);			//写数据程序
void esbusini(void);					//初始化总线程序
void ini_oled(void);            		//OLED初始化
void ini_dis(void);						//显示初始化(清除缓冲区)
/**************************实现函数********************************************
*函数原型:		unsigned char ReadCommand(void);
*功　　能:		从oled上读当前命令到控制器。
*******************************************************************************/
void WriteCommand(unsigned com)
{
	CS=1;
	DC=0;
	WR=0;	
	RD=1;
	CS=0;
	DAT=com;	
	CS=1;	
}
/**************************实现函数********************************************
*函数原型:		void WriteData(unsigned dat);
*功　　能:		写数据到oled显示屏。
*******************************************************************************/
void WriteData(unsigned dat)
{
	CS=1;
	DC=1;	
	WR=0;
	RD=1;
	CS=0;
	DAT=dat;
	CS=1;
}
/**************************实现函数********************************************
*函数原型:		void esbusini(void);
*功　　能:		总线初始化。
*******************************************************************************/
void esbusini(void)
{
	RES=0;
	RES=1;
}
/**************************实现函数********************************************
*函数原型:		void ini_dis(void);
*功　　能:		显示初始化。
*******************************************************************************/
void ini_dis(void)
{
	unsigned char i,j;
	for(i=0;i<8;i++)
	{
		WriteCommand (0xb0+i);    //设置显示位置—行
		WriteCommand (0x00);      //设置显示位置—列低地址
		WriteCommand (0x10);      //设置显示位置—列高地址
		for(j=0;j<128;j++)
			WriteData(0x00);        //屏幕显示，全亮
	}
}
/**************************实现函数********************************************
*函数原型:		void ini_oled(void);
*功　　能:		oled显示的准备工作。
*******************************************************************************/
void ini_oled(void)
{
	esbusini();
	/*************************************************
	// SSD1303 Initialization Command
	*************************************************/
	// Lower Column Address
	WriteCommand(0x00); /* Set Lower Column Address */
	// High Column Address
	WriteCommand(0x10); /* Set Higher Column Address*/
	// Display Start Line
	WriteCommand(0x40); /* Set Display Start Line */
	// Contrast Control Register
	WriteCommand(0x81); /* Set Contrast Control */
	WriteCommand(0x20); /* 0 ~ 255 */
	// Re-map
	WriteCommand(0xA0); /* [A0]:column address 0 is map 
	to SEG0 , [A1]: columnaddress 131 is map to SEG0*/ 
	// Entire Display ON/OFF
	WriteCommand(0xA4); /* A4=ON */
	// Normal or Inverse Display
	WriteCommand(0XA6); /* Normal Display*/
	// Multiplex Ratio
	WriteCommand(0xA8); /* Set Multiplex Ratio */
	WriteCommand(0x3f); /* Set to 36 Mux*/
	// Set DC-DC
	WriteCommand(0xAD); /* Set DC-DC */
	WriteCommand(0x8A); /* 8B=ON, 8A=Off */
	// Display ON/OFF
	WriteCommand(0xAE); /* AF=ON , AE=OFF*/
	// Display Offset
	WriteCommand(0xD3); /* Set Display Offset */
	WriteCommand(0x00); /* No offset */
	// Display Clock Divide
	WriteCommand(0xD5); /* Set Clock Divide */
	WriteCommand(0x20); /* Set to 80Hz */
	// Area Color Mode
	WriteCommand(0xD8); /* Set Area Color On or Off*/
	WriteCommand(0x00); /* Mono Mode */
	// COM Pins Hardware Configuration
	WriteCommand(0xDA); /* Set Pins HardwareConfiguration */
	WriteCommand(0x12);
	// VCOMH
	WriteCommand(0xDB); /* Set VCOMH */
	WriteCommand(0x00);
	// VP
	WriteCommand(0xD9); /* Set VP */
	WriteCommand(0x22); /* P1=2 , P2=2 */
	WriteCommand(0xc0);//配置成标准应用
	ini_dis();
}
/*******************************function************************************************************/
//*******************显示X，Y坐标处的一个字符。一行可以显示16个字符。X为0到15，Y为0到3**************
void disc(unsigned char X,unsigned char Y,unsigned char * c)
{
	unsigned char n;
	WriteCommand (0xb7-(Y<<1));
	if(X%2)
		WriteCommand (0x08);
	else
		WriteCommand (0x00);
	WriteCommand (0x10+(X>>1));
	for(n=0;n<=15;n+=2)
		WriteData(*(c+n));

	WriteCommand (0xb7-(Y<<1)-1);
	if(X%2)
		WriteCommand (0x08);
	else
		WriteCommand (0x00);
	WriteCommand (0x10+(X>>1));
	for(n=1;n<=15;n+=2)
		WriteData(*(c+n));
}
// X  is 0 to 7
void dish(unsigned char X,unsigned char Y,unsigned char * h)
{
	unsigned char n;
	WriteCommand (0xb7-(Y<<1));
	if(X%2)
		WriteCommand (0x08);
	else
		WriteCommand (0x00);
	WriteCommand (0x10+(X>>1));
	for(n=0;n<=31;n+=2)
		WriteData(*(h+n));

	WriteCommand (0xb7-(Y<<1)-1);
	if(X%2)
		WriteCommand (0x08);
	else
		WriteCommand (0x00);
	WriteCommand (0x10+(X>>1));
	for(n=1;n<=31;n+=2)
		WriteData(*(h+n));
}
void disn(unsigned char X,unsigned char Y,unsigned char n)
{
	unsigned char m;
	WriteCommand (0xb7-(Y<<1));
	if(X%2)
		WriteCommand (0x08);
	else
		WriteCommand (0x00);
	WriteCommand (0x10+(X>>1));
	//for(n=0;n<=15;n+=2)
	//	WriteData(*(c+n));
	for(m=0;m<=15;m+=2)
		WriteData(*(num[n]+m));                     

	WriteCommand (0xb7-(Y<<1)-1);
	if(X%2)
		WriteCommand (0x08);
	else
		WriteCommand (0x00);
	WriteCommand (0x10+(X>>1));
	for(m=1;m<=15;m+=2)
		WriteData(*(num[n]+m));
}
/*****************************************************************
*****************file is end here*********************************
*****************************************************************/
#endif