STM32 HAL OLED（0.96模拟IIC）

一、代码

一、代码

在初始化中先配置两个端口为上拉输出

OLED.C

#include "oled.h"
#include "oledfont.h" 
#include "math.h" 
uint8_t OLED_GRAM[128][8];
//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
**********************************************/
/**********************************************
//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();
	
}
 
void IIC_Wait_Ack()
{
		OLED_SCLK_Set();
		OLED_SCLK_Clr();
}
/**********************************************
// IIC Write byte
**********************************************/
 
void Write_IIC_Byte(uint8_t IIC_Byte)
{
		uint8_t i;
		uint8_t 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(uint8_t 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(uint8_t 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(uint8_t fill_Data)
{
		uint8_t m,n;
		for(m=0;m<8;m++)
		{
			OLED_WR_Byte(0xb0+m,0);		//page0-page1
			OLED_WR_Byte(0x02,0);		//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(uint8_t x, uint8_t y) 
{ 
		OLED_WR_Byte(0xb0+y,OLED_CMD);
		OLED_WR_Byte((((x+2)&0xf0)>>4)|0x10,OLED_CMD);
		OLED_WR_Byte(((x+2)&0x0f),OLED_CMD); 
}  

//画点 
//x:0~127
//y:0~63
//t:1 填充 0,清空				   
void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t)     //用此函数后需要将点更新到LCD，，即OLED_Refresh_Gram();
{
		uint8_t pos,bx,temp=0;
		if(x>127||y>63)
			return;//超出范围了.
		pos = 7-y/8;            //第几页  其实是反过来，然后       然后会翻转
		bx = y%8;
		temp = 1<<(7-bx);       //这里使这个 1 与具体的y相匹配
		if(t)
			OLED_GRAM[x][pos] |= temp;
		else 
			OLED_GRAM[x][pos] &= ~temp;	
}

//更新显存到LCD		 
void OLED_Refresh_Gram(void)
{
		uint8_t 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(OLED_GRAM[n][i],OLED_DATA); //将数据写入O_LED的GRAM中
		}   
}

//画线
void LCD_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2,uint16_t y2)//用此函数后需要将点更新到LCD，，即OLED_Refresh_Gram();
{
		uint16_t t; 
		int xerr=0,yerr=0,delta_x,delta_y,distance; 
		int incx,incy,uRow,uCol; 
		delta_x=x2-x1; //计算坐标增量 
		delta_y=y2-y1; 
		uRow=x1; 
		uCol=y1; 
		if(delta_x>0)
			incx=1; //设置单步方向 
		else if(delta_x==0)
			incx=0;//垂直线 
		else 
		{
			incx=-1;
			delta_x=-delta_x;
		} 
		if(delta_y>0)
			incy=1; 
		else if(delta_y==0)
			incy=0;//水平线 
		else
		{
				incy=-1;
				delta_y=-delta_y;
		} 
		if(delta_x>delta_y)
				distance=delta_x; //选取基本增量坐标轴 
		else 
				distance=delta_y; 
		for(t=0;t<=distance+1;t++ )//画线输出 
		{  
				OLED_DrawPoint(uRow,uCol,1);//画点 
				xerr+=delta_x ; 
				yerr+=delta_y ; 
				if(xerr>distance) 
				{ 
						xerr-=distance; 
						uRow+=incx; 
				} 
				if(yerr>distance) 
				{ 
						yerr-=distance; 
						uCol+=incy; 
				} 
		}  
} 

//画圆
void draw_circle(uint8_t x0,uint8_t y0,uint8_t r) //圆心(x0,y0),半径r
{
		uint8_t x,y;
		for(x=x0-r;x<=x0+r;x++)
		{
				uint8_t y_old;
				y_old=sqrt(pow(r,2)-pow(x-x0,2));  
			    OLED_DrawPoint(x,y_old+y0,1);    //上圆
				OLED_DrawPoint(x,y0-y_old,1);  //下圆
		}
}

//写画实心圆心(x0,y0),半径r
void draw_fill_circle(uint8_t x0,uint8_t y0,uint8_t r,uint8_t dot)
{	
		uint8_t x = 0,y = 0,R = 0;
		for(x = x0-r;x <= x0+r;x++)
	  {
				for(y = y0-r; y <= y0+r ;y++ )
				{
						R = sqrt(pow(r,2)-pow(x-x0,2))+y0; //圆方程  x,y反置		
						if( (y >= y0 && y <= R) || (y < y0 && y >= 2*y0-R )|| dot == 0 ) //点限制在 圆方程内	
						{  
								OLED_DrawPoint(y,x,dot);
						}	
				}
		}
}


//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)  
{  
	uint8_t 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 (0x02,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)  
{  
	uint8_t 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 (0x02,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(uint8_t x,uint8_t y,uint8_t chr,uint8_t 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
uint32_t oled_pow(uint8_t m,uint8_t n)
{
		uint32_t 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(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size2)
{         	
	uint8_t t,temp;
	uint8_t 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(uint8_t x,uint8_t y,uint8_t *chr,uint8_t Char_Size)
{
	uint8_t 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(uint8_t x,uint8_t y,uint8_t no)
{      			    
		uint8_t 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(uint8_t x0, uint8_t y0,uint8_t x1, uint8_t y1,uint8_t BMP[])
{ 	
	 uint16_t j=0;
	 uint8_t 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_InitStruct = {0};
	 
		__HAL_RCC_GPIOB_CLK_ENABLE();
	 
		HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10|GPIO_PIN_11, GPIO_PIN_RESET);//设置SCL，SDA
		/*Configure GPIO pins : PB10 PB11 */
		GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
		GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
		GPIO_InitStruct.Pull = GPIO_PULLUP;
		GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
		HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
		HAL_Delay(10);//必须延时10ms以上
		OLED_WR_Byte(0xAE,OLED_CMD);//--display off
		OLED_WR_Byte(0x02,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
}

OLED.h

#ifndef __OLED_H
#define __OLED_H	
#include "gpio.h"
 
#define OLED_MODE 0
#define SIZE 8
#define XLevelL		0x00
#define XLevelH		0x10
#define Max_Column	128
#define Max_Row		64
#define	Brightness	0xFF 
#define X_WIDTH 	128
#define Y_WIDTH 	64	    						  
//-----------------OLED IIC端口定义----------------  					   
 
#define OLED_SCLK_Clr() HAL_GPIO_WritePin(GPIOB,GPIO_PIN_10,GPIO_PIN_RESET)//SCL  拉低
#define OLED_SCLK_Set() HAL_GPIO_WritePin(GPIOB,GPIO_PIN_10,GPIO_PIN_SET)  //SCL  拉高
 
#define OLED_SDIN_Clr() HAL_GPIO_WritePin(GPIOB,GPIO_PIN_11,GPIO_PIN_RESET)//SDA  拉低
#define OLED_SDIN_Set() HAL_GPIO_WritePin(GPIOB,GPIO_PIN_11,GPIO_PIN_SET)  //SDA  拉高
 		     
#define OLED_CMD  0	//写命令
#define OLED_DATA 1	//写数据
 
//OLED控制用函数
void OLED_WR_Byte(unsigned dat,unsigned cmd);  
void OLED_Display_On(void);
void OLED_Display_Off(void);	   							   		    
void OLED_Init(void);
void OLED_Clear(void);
void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t);
void OLED_Fill(uint8_t x1,uint8_t y1,uint8_t x2,uint8_t y2,uint8_t dot);
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size);               //在指定位置显示一个字符,包括部分字符
void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size);        //显示2个数字
void OLED_ShowString(uint8_t x,uint8_t y, uint8_t *p,uint8_t Char_Size);	           //显示一个字符号串
void OLED_Set_Pos(uint8_t x, uint8_t y);                                 //坐标设置
void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t);                //画点 
void OLED_Refresh_Gram(void);                                                        //更新显存到LCD	
void LCD_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2,uint16_t y2);//画线
void draw_circle(uint8_t x0,uint8_t y0,uint8_t r);                                   //圆心(x0,y0),半径r
void draw_fill_circle(uint8_t x0,uint8_t y0,uint8_t r,uint8_t dot);                  //写画实心圆心(x0,y0),半径r
void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no);                               //显示汉字
void OLED_DrawBMP(uint8_t x0, uint8_t y0,uint8_t x1, uint8_t y1,uint8_t BMP[]);//显示BMP图片
void fill_picture(uint8_t fill_Data);
void Picture();
void IIC_Start();
void IIC_Stop();
void Write_IIC_Command(uint8_t IIC_Command);
void Write_IIC_Data(uint8_t IIC_Data);
void Write_IIC_Byte(uint8_t IIC_Byte);
 
void IIC_Wait_Ack();
#endif

oledfont.h

#ifndef __OLEDFONT_H
#define __OLEDFONT_H 	   
//常用ASCII表
//偏移量32
//ASCII字符集
//偏移量32
//大小:12*6
/************************************6*8的点阵************************************/
const unsigned char F6x8[][6] =		
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// sp
0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,// !
0x00, 0x00, 0x07, 0x00, 0x07, 0x00,// "
0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,// #
0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,// $
0x00, 0x62, 0x64, 0x08, 0x13, 0x23,// %
0x00, 0x36, 0x49, 0x55, 0x22, 0x50,// &
0x00, 0x00, 0x05, 0x03, 0x00, 0x00,// '
0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,// (
0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,// )
0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,// *
0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,// +
0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,// ,
0x00, 0x08, 0x08, 0x08, 0x08, 0x08,// -
0x00, 0x00, 0x60, 0x60, 0x00, 0x00,// .
0x00, 0x20, 0x10, 0x08, 0x04, 0x02,// /
0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
0x00, 0x42, 0x61, 0x51, 0x49, 0x46,// 2
0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
0x00, 0x27, 0x45, 0x45, 0x45, 0x39,// 5
0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
0x00, 0x01, 0x71, 0x09, 0x05, 0x03,// 7
0x00, 0x36, 0x49, 0x49, 0x49, 0x36,// 8
0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
0x00, 0x00, 0x36, 0x36, 0x00, 0x00,// :
0x00, 0x00, 0x56, 0x36, 0x00, 0x00,// ;
0x00, 0x08, 0x14, 0x22, 0x41, 0x00,// <
0x00, 0x14, 0x14, 0x14, 0x14, 0x14,// =
0x00, 0x00, 0x41, 0x22, 0x14, 0x08,// >
0x00, 0x02, 0x01, 0x51, 0x09, 0x06,// ?
0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,// @
0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,// A
0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,// B
0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,// C
0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,// E
0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,// F
0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,// G
0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,// I
0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,// J
0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,// K
0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,// L
0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,// M
0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,// P
0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,// R
0x00, 0x46, 0x49, 0x49, 0x49, 0x31,// S
0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,// T
0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,// W
0x00, 0x63, 0x14, 0x08, 0x14, 0x63,// X
0x00, 0x07, 0x08, 0x70, 0x08, 0x07,// Y
0x00, 0x61, 0x51, 0x49, 0x45, 0x43,// Z
0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,// [
0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,// 55
0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,// ]
0x00, 0x04, 0x02, 0x01, 0x02, 0x04,// ^
0x00, 0x40, 0x40, 0x40, 0x40, 0x40,// _
0x00, 0x00, 0x01, 0x02, 0x04, 0x00,// '
0x00, 0x20, 0x54, 0x54, 0x54, 0x78,// a
0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,// b
0x00, 0x38, 0x44, 0x44, 0x44, 0x20,// c
0x00, 0x38, 0x44, 0x44, 0x48, 0x7F,// d
0x00, 0x38, 0x54, 0x54, 0x54, 0x18,// e
0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,// f
0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,// g
0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,// h
0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,// i
0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,// j
0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,// k
0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,// l
0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,// m
0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,// n
0x00, 0x38, 0x44, 0x44, 0x44, 0x38,// o
0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,// p
0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,// q
0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,// r
0x00, 0x48, 0x54, 0x54, 0x54, 0x20,// s
0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,// t
0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
0x00, 0x44, 0x28, 0x10, 0x28, 0x44,// x
0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,// y
0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,// z
0x14, 0x14, 0x14, 0x14, 0x14, 0x14,// horiz lines
};
/****************************************8*16的点阵************************************/
const unsigned char F8X16[]=	  
{
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
  0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
  0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
  0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
  0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
  0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
  0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
  0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
  0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
  0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
  0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
  0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
  0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
  0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
  0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
  0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
  0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
  0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
  0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
  0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
  0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
  0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
  0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
  0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
  0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
  0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
  0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
  0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
  0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
  0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
  0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
  0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
  0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
  0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
  0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
  0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
  0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
  0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
  0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
  0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
  0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
  0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
  0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
  0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
  0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
  0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
  0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
  0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
  0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
  0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
  0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
  0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
  0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
  0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
  0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
  0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
  0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
  0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
  0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
  0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
  0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
  0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
  0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
  0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
  0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
  0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
  0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
  0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
  0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
  0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
  0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
  0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
  0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
  0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
  0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
  0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
char Hzk[][32]={
	
//{0x1F,0x0F,0x07,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x07,0x0F,0x1F,0x3F},
//{0xFC,0xF8,0xF0,0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,0x80,0xC0,0xE0,0xF0,0xF8,0xFC},/*"fuhao",7*/	
//	
	

{0x00,0x00,0xF0,0x10,0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x10,0xF0,0x00,0x00,0x00},
{0x00,0x00,0x0F,0x04,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x0F,0x00,0x00,0x00},/*"中",0*/

{0x40,0x40,0x40,0x5F,0x55,0x55,0x55,0x75,0x55,0x55,0x55,0x5F,0x40,0x40,0x40,0x00},
{0x00,0x40,0x20,0x0F,0x09,0x49,0x89,0x79,0x09,0x09,0x09,0x0F,0x20,0x40,0x00,0x00},/*"景",1*/

{0x00,0xFE,0x02,0x42,0x4A,0xCA,0x4A,0x4A,0xCA,0x4A,0x4A,0x42,0x02,0xFE,0x00,0x00},
{0x00,0xFF,0x40,0x50,0x4C,0x43,0x40,0x40,0x4F,0x50,0x50,0x5C,0x40,0xFF,0x00,0x00},/*"园",2*/

{0x00,0x00,0xF8,0x88,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0x88,0xF8,0x00,0x00,0x00},
{0x00,0x00,0x1F,0x08,0x08,0x08,0x08,0x7F,0x88,0x88,0x88,0x88,0x9F,0x80,0xF0,0x00},/*"电",3*/

{0x80,0x82,0x82,0x82,0x82,0x82,0x82,0xE2,0xA2,0x92,0x8A,0x86,0x82,0x80,0x80,0x00},
{0x00,0x00,0x00,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"子",4*/

{0x24,0x24,0xA4,0xFE,0xA3,0x22,0x00,0x22,0xCC,0x00,0x00,0xFF,0x00,0x00,0x00,0x00},
{0x08,0x06,0x01,0xFF,0x00,0x01,0x04,0x04,0x04,0x04,0x04,0xFF,0x02,0x02,0x02,0x00},/*"科",5*/

{0x10,0x10,0x10,0xFF,0x10,0x90,0x08,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0x08,0x00},
{0x04,0x44,0x82,0x7F,0x01,0x80,0x80,0x40,0x43,0x2C,0x10,0x28,0x46,0x81,0x80,0x00},/*"?",0*/

{0x40,0x40,0x48,0x48,0x48,0xC8,0x78,0x4F,0x48,0x48,0x48,0x48,0x48,0x40,0x40,0x00},
{0x00,0x00,0x00,0x00,0x03,0x12,0x12,0x22,0x22,0x52,0x8A,0x06,0x00,0x00,0x00,0x00},/*"专",0*/

{0x00,0x10,0x60,0x80,0x00,0xFF,0x00,0x00,0x00,0xFF,0x00,0x00,0xC0,0x30,0x00,0x00},
{0x40,0x40,0x40,0x43,0x40,0x7F,0x40,0x40,0x40,0x7F,0x42,0x41,0x40,0x40,0x40,0x00},/*"业",1*/

{0x10,0x10,0x10,0xFF,0x10,0x90,0x08,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0x08,0x00},
{0x04,0x44,0x82,0x7F,0x01,0x80,0x80,0x40,0x43,0x2C,0x10,0x28,0x46,0x81,0x80,0x00},/*"技",2*/

{0x00,0x10,0x10,0x10,0x10,0xD0,0x30,0xFF,0x30,0xD0,0x12,0x1C,0x10,0x10,0x00,0x00},
{0x10,0x08,0x04,0x02,0x01,0x00,0x00,0xFF,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x00},/*"术",3*/

{0x00,0x00,0xFE,0x22,0x22,0x22,0xFE,0x00,0xFE,0x82,0x82,0x92,0xA2,0x9E,0x00,0x00},
{0x80,0x60,0x1F,0x02,0x42,0x82,0x7F,0x00,0xFF,0x40,0x2F,0x10,0x2C,0x43,0x80,0x00},/*"服",4*/

{0x00,0x00,0x90,0x88,0x4C,0x57,0xA4,0x24,0x54,0x54,0x8C,0x84,0x00,0x00,0x00,0x00},
{0x01,0x01,0x80,0x42,0x22,0x1A,0x07,0x02,0x42,0x82,0x42,0x3E,0x01,0x01,0x01,0x00},/*"务",5*/

{0x00,0x04,0xE4,0x24,0x2C,0xB4,0x25,0x26,0x24,0xB4,0x2C,0x24,0xE4,0x04,0x00,0x00},
{0x00,0x00,0xFF,0x02,0x01,0x1E,0x12,0x12,0x12,0x1E,0x41,0x82,0x7F,0x00,0x00,0x00},/*"商",6*/



};

#endif

二、初始化

main函数中初始化和清空oled

/* USER CODE BEGIN Init */
    OLED_Init();
	OLED_Clear();
/* USER CODE END Init */

三、显示字符串和单个字符

while(1)
{
    OLED_ShowString(8,4,"ASD",16); //表示x=4，y=8开始显示字符串

    aa=123；
    OLED_ShowChar(8,6,48+aa/100,16);     //显示一个字符
    OLED_ShowChar(16,6,48+aa%100/10,16);
    OLED_ShowChar(24,6,48+aa%100%10,16);

    //注意字符串和字符的子函数不一样!!!!!!!!!!!!!!
}

四、显示图像

找一张图片截图然后用电脑自带的画图软件打开

点击图片右键选择重新调整大小，选择像素和垂直为64，水平应为128，但是自动调整为191先不用管。

然后手动调节图片像素为128

然后保存为bmp图片用PCtoLCD2002打开，然后手动调节一下

点击选项

点击确定生成字模，然后复制到代码里

unsigned char BMP3[] =

{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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0xE0,
0xE0,0xF0,0xF8,0xF8,0xF8,0xFC,0xFC,0xFC,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,
0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFC,0xFC,0xFC,0xF8,0xF8,0xF0,0xF0,0xE0,
0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xE0,0xF0,0xF8,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,
0x7F,0x3F,0x1F,0x1F,0x0F,0x07,0x07,0x03,0x03,0x13,0x31,0x71,0x71,0xF1,0xF9,0xFF,
0xFF,0xFD,0xF1,0xF1,0x71,0x31,0x13,0x03,0x03,0x07,0x07,0x0F,0x1F,0x1F,0x3F,0x7F,
0xFF,0xFF,0xFF,0xFF,0xFE,0xFC,0xF8,0xF0,0xE0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
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,
0x00,0x00,0x00,0xC0,0xF8,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0x0F,0x03,0x00,
0x00,0x04,0x0C,0x7C,0x3F,0x1F,0x3C,0x6C,0x04,0x80,0x80,0x80,0xCE,0x0F,0x07,0x03,
0x07,0x07,0xCF,0xCE,0x80,0x80,0x80,0x04,0x6C,0x3C,0x3F,0x3F,0x7C,0x0C,0x04,0x00,
0x01,0x03,0x07,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xF8,0xC0,0x00,0x00,0x00,
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,
0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x8F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x0F,0x07,0x0F,0x1F,0x07,0x06,0x00,
0x00,0x06,0x07,0x1F,0x0F,0x07,0x0F,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xC7,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,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,
0x00,0x00,0x00,0x07,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0xC0,0x00,0x80,
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xF0,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,
0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xF0,0x80,0x80,0x80,0x80,0x80,0x80,0x80,
0x80,0x00,0xC0,0xF0,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x0F,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,
0x00,0x00,0x00,0x00,0x00,0x01,0x07,0x1F,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xDF,0xDF,0x9F,0x1F,0x1F,0x1F,0x9F,0x9F,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xDF,0x9F,0x9F,0x1F,0x1F,0x1F,0x9F,0xDF,0xDF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0x1F,0x0F,0x01,0x00,0x00,0x00,0x00,0x00,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xFD,0xFF,0x07,0xFF,0xFF,0xBF,
0xFF,0xFF,0xFB,0xF7,0xEF,0xDF,0xFF,0xBF,0xFF,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xEF,
0xEF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xBF,0xFF,0xDF,0xEF,0xF7,0xFB,0xFF,0xFF,
0xBF,0xFF,0xFF,0x07,0xFF,0xFD,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x03,0x07,0x07,0x1F,0x1F,0x3F,
0x3F,0x3F,0x3F,0x3F,0x3F,0x1F,0x1F,0x3F,0x3F,0x3F,0x37,0x3F,0x3F,0x3F,0x37,0x3F,
0x3F,0x37,0x3F,0x3F,0x3F,0x37,0x3F,0x3F,0x3F,0x3F,0x1F,0x1F,0x3F,0x3F,0x3F,0x3F,
0x3F,0x1F,0x1F,0x07,0x07,0x03,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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};/*"C:\Users\admin\Desktop\无标题.bmp",0*/

主函数加入这一条

OLED_DrawBMP(0,0,128,8,BMP3);  //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1～8表示行

五、画sin函数

for(x=0;x<=126;x++)
{
	y=sin(x/20);
	OLED_DrawPoint(x,y*30+30,1);
}
OLED_Refresh_Gram();

OLED显示屏X轴0-127，Y轴0-63

若是在0-127的轴上显示一个完整的sin曲线，则x=[0，2pi]，x则需放大到0-127，即X轴要缩小20倍

因为y的值域为[-1，1]，有负数存在则将Y平移+30到达OLED屏幕的中间，再将值域放大30倍便于观看

若是要改变频率只需改变X轴的缩小倍数

for(x=0;x<=126;x++)
{
	y=sin(x/5);
	OLED_DrawPoint(x,y*30+30,1);	
}
OLED_Refresh_Gram();

六、画圆

while(1)
{
    draw_circle(23,23,23);
	draw_circle(63,23,23);
    draw_circle(104,23,23);
	draw_circle(40,40,23);
	draw_circle(80,40,23);
	OLED_Refresh_Gram();
}

原文链接：https://blog.csdn.net/qq_24426625/article/details/123692668

一、代码

二、初始化

三、显示字符串和单个字符

四、显示图像

五、画sin函数

六、画圆

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