stm32_template/module_Template/OLED屏幕0.96/OLED.c

#include "main.h"
//#include <stdlib.h>
#include "OLEDFont.h"  	 
//#include "delay.h"
//OLED的显存
//存放格式如下.
//[0]0 1 2 3 ... 127	
//[1]0 1 2 3 ... 127	
//[2]0 1 2 3 ... 127	
//[3]0 1 2 3 ... 127	
//[4]0 1 2 3 ... 127	
//[5]0 1 2 3 ... 127	
//[6]0 1 2 3 ... 127	
//[7]0 1 2 3 ... 127 			   
/**********************************************
//IIC Start
**********************************************/
void IIC_Start(void)
{
	OLED_SCLK_Set();
	OLED_SDIN_Set();
	OLED_SDIN_Clr();
	OLED_SCLK_Clr();
}
/**********************************************
//IIC Stop
**********************************************/
void IIC_Stop(void)
{
	OLED_SCLK_Set();
//	OLED_SCLK_Clr();
	OLED_SDIN_Clr();
	OLED_SDIN_Set();
}

void IIC_Wait_Ack(void)
{
	/*
	GPIOB->CRH &= 0XFFF0FFFF;	//设置PB12为上拉输入模式
	GPIOB->CRH |= 0x00080000;
	OLED_SDA = 1;
	delay_us(1);
	OLED_SCL = 1;
	delay_us(50000);
	while(1)
	{
		if(!OLED_SDA)				//判断是否接收到OLED 应答信号
		{
			//GPIOB->CRH &= 0XFFF0FFFF;	//设置PB12为通用推免输出模式
			//GPIOB->CRH |= 0x00030000;
			return;
		}
	}
*/
	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;
		//	OLED_SCLK_Clr();
		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();
}
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);
		}
	}
}
//坐标设置
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); 
}   	  
//开启OLED显示    
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
}
//关闭OLED显示     
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
}		   			 
//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!	  
void OLED_Clear(void)  
{  
	u8 i,n;		    
	for(i=0;i<8;i++)  
	{  
		OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）
		OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址
		OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   
		for(n=0;n<128;n++) OLED_WR_Byte(0,OLED_DATA); 
	} //更新显示
}
void OLED_On(void)  
{  
	u8 i,n;		    
	for(i=0;i<8;i++)  
	{  
		OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）
		OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址
		OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   
		for(n=0;n<128;n++) OLED_WR_Byte(1,OLED_DATA); 
	} //更新显示
}
//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//mode:0,反白显示;1,正常显示				 
//size:选择字体 16/12 
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
{      	
	unsigned char c=0,i=0;	
		c=chr-' ';//得到偏移后的值			
		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);
		}
}
//m^n函数
u32 oled_pow(u8 m,u8 n)
{
	u32 result=1;	 
	while(n--)result*=m;    
	return result;
}				  
//显示2个数字
//x,y :起点坐标	 
//len :数字的位数
//size:字体大小
//mode:模式	0,填充模式;1,叠加模式
//num:数值(0~4294967295);	 		  
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2)
{         	
	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+(size2/2)*t,y,' ',size2);
				continue;
			} else { 
				enshow=1; 
			}  
		}
	 	OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2); 
	}
} 
//显示一个字符号串
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++;
	}
}
//显示汉字
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;
	}					
}
/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/
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);	    	
	  }
	}
} 
//初始化SSD1306					    
void OLED_Init(void)
{ 	
 	GPIO_InitTypeDef  GPIO_InitStructure;

	OLED_SCLK_PORT_APBxClkCmd(OLED_SCLK_PORT_CLK, ENABLE);
	OLED_SDIN_PORT_APBxClkCmd(OLED_SDIN_PORT_CLK, ENABLE);

	GPIO_InitStructure.GPIO_Pin = OLED_SCLK_PIN;	 
 	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 	GPIO_Init(OLED_SCLK_PORT, &GPIO_InitStructure);
	GPIO_InitStructure.GPIO_Pin = OLED_SDIN_PIN;
	GPIO_Init(OLED_SDIN_PORT, &GPIO_InitStructure);

 	GPIO_SetBits(OLED_SCLK_PORT,OLED_SCLK_PIN);	
	GPIO_SetBits(OLED_SDIN_PORT,OLED_SDIN_PIN);	

	DELAYClass.DelayMs(800);
	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
	DELAYClass.DelayMs(10);
	OLED_Clear();
}