N76E003 IIC OLED

#include "N76E003.h"
#include "Common.h"
#include "Delay.h"
#include "SFR_Macro.h"
#include "Function_define.h"
#include  "math.h"
#include "oledfont.h"


#define u8 unsigned char 
#define u32 unsigned int 

/*SCL    P1.3
SDA      P1.4*/
#define OLED_SCLK_Clr() SCL=0
#define OLED_SCLK_Set() SCL=1
#define OLED_SDIN_Clr() SDA=0
#define OLED_SDIN_Set()	SDA=1


#define SYS_CLK_EN              0
#define SYS_SEL                 2
#define SYS_DIV_EN              0                   //0: Fsys=Fosc, 1: Fsys = Fosc/(2*CKDIV)
#define SYS_DIV                 1
#define I2C_CLOCK               2
#define TEST_OK                 0x00
bit I2C_Reset_Flag;

#define OLED_CMD  0	//寫命令
#define OLED_DATA 1	//寫數據
#define OLED_MODE 0
#define SIZE 16
#define XLevelL		0x02
#define XLevelH		0x10
#define Max_Column	128
#define Max_Row		64
#define	Brightness	0xFF 
#define X_WIDTH 	128
#define Y_WIDTH 	64	


/**********************************************
//IIC GPIO Init
(必須配置爲開漏模式，並加上拉電阻)
**********************************************/
void Init_I2C(void)
{
		P13_OpenDrain_Mode;					// Modify SCL pin to Open drain mode. don't forget the pull high resister in circuit
		P14_OpenDrain_Mode;					// Modify SDA pin to Open drain mode. don't forget the pull high resister in circuit
	
    /* Set I2C clock rate */
    I2CLK = I2C_CLOCK; 

    /* Enable I2C */
    set_I2CEN;                                   
}


/**********************************************
//IIC Start
**********************************************/
void IIC_Start()
{

	OLED_SCLK_Set() ;
	OLED_SDIN_Set();
	OLED_SDIN_Clr();
	OLED_SCLK_Clr();
}

/**********************************************
//IIC Stop
**********************************************/
void IIC_Stop()
{
	OLED_SCLK_Set() ;
	OLED_SDIN_Clr();
	OLED_SDIN_Set();	
}

/**********************************************
//IIC Ack
**********************************************/
void IIC_Wait_Ack()
{
		while(1)
		{
			if(!SDA)				//判斷是否接收到應答信號
			{
				break;
			}
		}
	OLED_SCLK_Set() ;
	OLED_SCLK_Clr();
}
/**********************************************
// IIC Write byte
**********************************************/

void Write_IIC_Byte(unsigned char IIC_Byte)
{
	unsigned char i;
	unsigned char m,da;
	da=IIC_Byte;
	OLED_SCLK_Clr();
	for(i=0;i<8;i++)		
	{
			m=da;
		m=m&0x80;
		if(m==0x80)
		{OLED_SDIN_Set();}
		else OLED_SDIN_Clr();
			da=da<<1;
		OLED_SCLK_Set();
		OLED_SCLK_Clr();
		}
}
/**********************************************
// IIC Write Command
**********************************************/
void Write_IIC_Command(unsigned char IIC_Command)
{
   IIC_Start();
   Write_IIC_Byte(0x78);            //Slave address,SA0=0
	IIC_Wait_Ack();	
   Write_IIC_Byte(0x00);			//write command
	IIC_Wait_Ack();	
   Write_IIC_Byte(IIC_Command); 
	IIC_Wait_Ack();	
   IIC_Stop();
}
/**********************************************
// IIC Write Data
**********************************************/
void Write_IIC_Data(unsigned char IIC_Data)
{
   IIC_Start();
   Write_IIC_Byte(0x78);			//D/C#=0; R/W#=0
	IIC_Wait_Ack();	
   Write_IIC_Byte(0x40);			//write data
	IIC_Wait_Ack();	
   Write_IIC_Byte(IIC_Data);
	IIC_Wait_Ack();	
   IIC_Stop();
}
/**********************************************
// IIC WriteReadCmd
**********************************************/
void OLED_WR_Byte(unsigned dat,unsigned cmd)
{
	if(cmd)
			{

   Write_IIC_Data(dat);
   
		}
	else {
   Write_IIC_Command(dat);
		
	}
}
/********************************************
// fill_Picture
********************************************/
void fill_picture(unsigned char fill_Data)
{
	unsigned char m,n;
	for(m=0;m<8;m++)
	{
		OLED_WR_Byte(0xb0+m,0);		//page0-page1
		OLED_WR_Byte(0x00,0);		//low column start address
		OLED_WR_Byte(0x10,0);		//high column start address
		for(n=0;n<128;n++)
			{
				OLED_WR_Byte(fill_Data,1);
			}
	}
}
//座標設置

	void OLED_Set_Pos(unsigned char x, unsigned char y) 
{ 	OLED_WR_Byte(0xb0+y,OLED_CMD);
	OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
	OLED_WR_Byte((x&0x0f),OLED_CMD); 
}   	  
//開啓OLED顯示    
void OLED_Display_On(void)
{
	OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令
	OLED_WR_Byte(0X14,OLED_CMD);  //DCDC ON
	OLED_WR_Byte(0XAF,OLED_CMD);  //DISPLAY ON
}
//關閉OLED顯示     
void OLED_Display_Off(void)
{
	OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令
	OLED_WR_Byte(0X10,OLED_CMD);  //DCDC OFF
	OLED_WR_Byte(0XAE,OLED_CMD);  //DISPLAY OFF
}	


/********************************************
// OLED Clear Display
********************************************/
void OLED_Clear(void)  
{  
	u8 i,n;		    
	for(i=0;i<8;i++)  
	{  
		OLED_WR_Byte (0xb0+i,OLED_CMD);    //設置頁地址（0~7）
		OLED_WR_Byte (0x00,OLED_CMD);      //設置顯示位置—列低地址
		OLED_WR_Byte (0x10,OLED_CMD);      //設置顯示位置—列高地址   
		for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA); 
	} //更新顯示
}

/********************************************
// OLED Update
********************************************/
void OLED_Update(void)  
{  
	u8 i,n;		    
	for(i=0;i<8;i++)  
	{  
		OLED_WR_Byte (0xb0+i,OLED_CMD);    //設置頁地址（0~7）
		OLED_WR_Byte (0x00,OLED_CMD);      //設置顯示位置—列低地址
		OLED_WR_Byte (0x10,OLED_CMD);      //設置顯示位置—列高地址   
		for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA); 
	} 
}

/********************************************
//OLED Display Char
//x:0~127
//y:0~63	 
//size:16/12 
********************************************/
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
{      	
	unsigned char c=0,i=0;	
		c=chr-' ';//得到偏移後的值			
		if(x>Max_Column-1){x=0;y=y+2;}
		if(Char_Size ==16)
			{
			OLED_Set_Pos(x,y);	
			for(i=0;i<8;i++)
			OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
			OLED_Set_Pos(x,y+1);
			for(i=0;i<8;i++)
			OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
			}
			else {	
				OLED_Set_Pos(x,y);
				for(i=0;i<6;i++)
				OLED_WR_Byte(F6x8[c][i],OLED_DATA);
				
			}
}
/********************************************
//OLED Pow
********************************************/
u32 oled_pow(u8 m,u8 n)
{
	u32 result=1;	 
	while(n--)result*=m;    
	return result;
}				  

/********************************************
//OLED Display Number
//x:0~127
//y:0~63
//num
//len
//size:16/12 
********************************************/
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 Num_size)
{         	
	u8 t,temp;
	u8 enshow=0;						   
	for(t=0;t<len;t++)
	{
		temp=(num/oled_pow(10,len-t-1))%10;
		if(enshow==0&&t<(len-1))
		{
			if(temp==0)
			{
				OLED_ShowChar(x+(Num_size/2)*t,y,' ',Num_size);
				continue;
			}else enshow=1; 
		 	 
		}
	 	OLED_ShowChar(x+(Num_size/2)*t,y,temp+'0',Num_size); 
	}
} 

/********************************************
//Show a String
********************************************/
void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size)
{
	unsigned char j=0;
	while (chr[j]!='\0')
	{		OLED_ShowChar(x,y,chr[j],Char_Size);
			x+=8;
		if(x>120){x=0;y+=2;}
			j++;
	}
}

/********************************************
//Show  漢字
********************************************/
void OLED_ShowCHinese(u8 x,u8 y,u8 no)
{      			    
	u8 t,adder=0;
	OLED_Set_Pos(x,y);	
    for(t=0;t<16;t++)
		{
				OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
				adder+=1;
     }	
		OLED_Set_Pos(x,y+1);	
    for(t=0;t<16;t++)
			{	
				OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
				adder+=1;
      }					
}


/********************************************
//Show Img
********************************************/
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
{ 	
 unsigned int j=0;
 unsigned char x,y;
  
  if(y1%8==0) y=y1/8;      
  else y=y1/8+1;
	for(y=y0;y<y1;y++)
	{
		OLED_Set_Pos(x0,y);
    for(x=x0;x<x1;x++)
	    {      
	    	OLED_WR_Byte(BMP[j++],OLED_DATA);	    	
	    }
	}
} 

/********************************************
//Init OLED
********************************************/				    
void OLED_Init(void)
{ 	
	Init_I2C();
	OLED_WR_Byte(0xAE,OLED_CMD);//--display off
	OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
	OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
	OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  
	OLED_WR_Byte(0xB0,OLED_CMD);//--set page address
	OLED_WR_Byte(0x81,OLED_CMD); // contract control
	OLED_WR_Byte(0xFF,OLED_CMD);//--128   
	OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap 
	OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse
	OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
	OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty
	OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction
	OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset
	OLED_WR_Byte(0x00,OLED_CMD);//
	
	OLED_WR_Byte(0xD5,OLED_CMD);//set osc division
	OLED_WR_Byte(0x80,OLED_CMD);//
	
	OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off
	OLED_WR_Byte(0x05,OLED_CMD);//
	
	OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period
	OLED_WR_Byte(0xF1,OLED_CMD);//
	
	OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion
	OLED_WR_Byte(0x12,OLED_CMD);//
	
	OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh
	OLED_WR_Byte(0x30,OLED_CMD);//
	
	OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable
	OLED_WR_Byte(0x14,OLED_CMD);//
	
	OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
}  

void main()
{
	u8 t,Test=240;
		OLED_Init();//初始化OLED
		OLED_Clear();//清屏
		t=' ';

		OLED_ShowCHinese(1,0,3);//"電"漢字
		OLED_ShowString(1,2,"123AaBbCcDd",16);//顯示字符串
		OLED_ShowNum(1,4,240,3,16);//顯示數據
		OLED_ShowChar(1,6,'A',16);

		while(1);

}