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STM32 使用硬件IIC驱动0.96寸4针OLED显示器（HAL库）_0.96寸oled显示屏4针

作者：从前慢现在也慢 | 2024-05-13 07:54:20

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0.96寸oled显示屏4针

OLED显示屏驱动HAL库

一、简介：
SSD1306 是一个单片 CMOS OLED/PLED 驱动芯片可以驱动有机/聚合发光二极管点阵图形显示系统。由 128 segments 和 64 Commons 组成。该芯片专为共阴极 OLED 面板设计。
SSD1306 中嵌入了对比度控制器、显示 RAM 和晶振，并因此减少了外部器件和功耗。有 256级亮度控制。数据/命令的发送有三种接口可选择：6800/8000 串口，I2C 接口或 SPI 接口。
适用于多数简介的应用，注入移动电话的屏显，MP3 播放器和计算器等。
详细介绍以及工作原理：
链接: https://pan.baidu.com/s/1nz1MpdP5-o-kRXF9mfZmig 提取码: s4j8
0.96寸oled显示屏有4引脚的7引脚的，4引脚的只能采用i2c驱动，7引脚的是既可以使用i2c也可以使用spi驱动的。
4引脚oled显示屏：
在这里插入图片描述
7引脚oled显示屏：
在这里插入图片描述
本次实验采用的是第一种，I2C驱动的，I2C的原理我就不做介绍了，大家可以自己去看一下。
如果大家详细看了工作原理那个链接的文件，会发现这个显示屏驱动有三种寻址方式，水平寻址、垂直寻址还有页寻址方式。下面给大家介绍的代码驱动就是采用的页寻址方式。
二、驱动的引脚配置
主控芯片使用STM32F103C8T6,这款芯片有两个I2C，I2C1和I2C2，因为I2C2与USART3用的相同的引脚，单独做oled显示实验的时候不需要考虑，但是在需要用到USART3的时候就不建议使用I2C2，我这里还是使用I2C1也就是PB6（SCL）和PB7(SDA)，直接和oled显示屏上相连。
因为使用HAL库，所以我这里直接使用STM32CubeMax进行配置：
配置如下：
在这里插入图片描述
配置完了，直接命名生成代码。
生成后的代码：
在这里插入图片描述
到这里工程的创建基本完成，接下来说说OLED驱动代码部分。
三、驱动代码
oled.c文件

/***********************************
	本驱动文件仅适配HAL库版本
***********************************/
#include "font.h"	//字库文件
#include "oled.h"		//声明
#include "i2c.h"

/* 控制宏 */
#define LEFT 			0x27
#define RIGHT 			0x26
#define UP 				0X29
#define DOWM 			0x2A
#define ON				0xA7
#define OFF				0xA6


/* IIC接口选择 */
#define IICx hi2c1


//oled显示尺寸
uint16_t const displayWidth                = 128;
uint16_t const displayHeight               = 64;

/*  OLED显存
[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 */
static uint8_t OLED_RAM[8][128];//定义GDDRAM缓存区

void HAL_I2C_WriteByte(uint8_t addr,uint8_t data)
{
  uint8_t TxData[2] = {addr,data};
	HAL_I2C_Master_Transmit(&IICx,0X78,(uint8_t*)TxData,2,10);
}

/**************************************************************
	 Prototype      : void WriteCmd(uint8_t IIC_Command)
	 Parameters     : IIC_Command
	 return					: none
	 Description    : 写命令
***************************************************************/
void WriteCmd(uint8_t IIC_Command)
{
	HAL_I2C_WriteByte(0x00, IIC_Command);
}

/**************************************************************
	 Prototype      : void WriteDat(uint8_t IIC_Data)
	 Parameters     : IIC_Data
	 return					: none
	 Description    : 写数据
***************************************************************/
void WriteDat(uint8_t IIC_Data)
{
	HAL_I2C_WriteByte(0x40, IIC_Data);
}

/**************************************************************
	 Prototype      : void OLED_Init(void)
	 Parameters     : none
	 return					: none
	 Description    : 初始化OLED模块
***************************************************************/
void OLED_Init(void) 
{
	HAL_Delay(500);
	
	WriteCmd(0xAE); //开显示
	WriteCmd(0x20);	//设置内存寻址模式	
	
	WriteCmd(0x10);	//00，水平寻址模式;01，垂直寻址模式;10，页面寻址模式(重置);11，无效
	WriteCmd(0xb0);	//为页面寻址模式设置页面开始地址，0-7
	WriteCmd(0x00); //---设置低列地址
	WriteCmd(0x10); //---设置高列地址

	WriteCmd(0xc8);	//设置COM输出扫描方向
	WriteCmd(0x40); //--设置起始行地址
	WriteCmd(0x81); //--set contrast control register
	WriteCmd(0xff); //亮度调节 0x00~0xff
	WriteCmd(0xa1); //--设置段重新映射0到127
	WriteCmd(0xa6); //--设置正常显示
	WriteCmd(0xa8); //--设置复用比(1 ~ 64)
	WriteCmd(0x3F); //
	WriteCmd(0xa4); //0xa4,输出遵循RAM内容;0xa5,Output忽略RAM内容
	WriteCmd(0xd3); //-设置显示抵消
	WriteCmd(0x00); //-not offset
	WriteCmd(0xd5); //--设置显示时钟分频/振荡器频率
	WriteCmd(0xf0); //--设置分率
	WriteCmd(0xd9); //--设置pre-charge时期
	WriteCmd(0x22); //
	WriteCmd(0xda); //--设置com大头针硬件配置
	WriteCmd(0x12);
	WriteCmd(0xdb); //--设置vcomh
	WriteCmd(0x20); //0x20,0.77xVcc
	WriteCmd(0x8d); //--设置DC-DC
	WriteCmd(0x14); //
	WriteCmd(0xaf); //--打开oled面板
	
	OLED_FullyClear();//清屏
}

/**************************************************************
	 Prototype      : void OLED_ON(void)
	 Parameters     : none
	 return					: none
	 Description    : 将OLED从休眠中唤醒
***************************************************************/
void OLED_ON(void)
{
	WriteCmd(0X8D);  //设置电荷泵
	WriteCmd(0X14);  //开启电荷泵
	WriteCmd(0XAF);  //OLED唤醒
}

/**************************************************************
	 Prototype      : void OLED_OFF(void)
	 Parameters     : none
	 return					: none
	 Description    : 让OLED休眠 -- 休眠模式下,OLED功耗不到10uA
***************************************************************/
void OLED_OFF(void)
{
	WriteCmd(0X8D);  //设置电荷泵
	WriteCmd(0X10);  //关闭电荷泵
	WriteCmd(0XAE);  //OLED休眠
}

/**************************************************************
	 Prototype      : void OLED_RefreshRAM(void)
	 Parameters     : none
	 return					: none
	 Description    : 全屏填充
***************************************************************/
void OLED_RefreshRAM(void)
{
	// 页寻址模式填充
	for(uint16_t m = 0; m < displayHeight/8; m++)
	{
		WriteCmd(0xb0+m);		//设置页地址b0~b7
		WriteCmd(0x00);		//设置显示位置—列低地址00-0f
		WriteCmd(0x10);		//设置显示位置—列高地址10-1f
		for(uint16_t n = 0; n < displayWidth; n++)
		{
				WriteDat(OLED_RAM[m][n]);
		}
	} 
}

/**************************************************************
	 Prototype      : void OLED_ClearRAM(void)
	 Parameters     : none
	 return					: none
	 Description    : 清除数据缓冲区
***************************************************************/
void OLED_ClearRAM(void)
{
	for(uint16_t m = 0; m < displayHeight/8; m++)
	{
		for(uint16_t n = 0; n < displayWidth; n++)
		{
				OLED_RAM[m][n] = 0x00;
		}
	}
}


/**************************************************************
	 Prototype      : void OLED_Fill(uint8_t fill_Data)
	 Parameters     : fill_Data 填充的1字节数据
	 return					: none
	 Description    : 全屏填充 0x00~0xff
***************************************************************/
void OLED_FullyFill(uint8_t fill_Data)
{
	for(uint16_t m = 0; m < displayHeight/8; m++)
	{
		for(uint16_t n = 0; n < displayWidth; n++)
		{
				OLED_RAM[m][n] = fill_Data;
		}
	}
	
	OLED_RefreshRAM();
}

/**************************************************************
	 Prototype      : void OLED_FullyClear(void)
	 Parameters     : none
	 return					: none
	 Description    : 全屏清除
***************************************************************/
void OLED_FullyClear(void)
{
		OLED_FullyFill(RESET_PIXEL);
}

/**************************************************************
	Prototype      :  void OLED_SetPixel(int16_t x, int16_t y, uint8_t set_pixel)
	Parameters     : 	x,y -- 起始点坐标(x:0~127, y:0~63); 
										set_pixel	 该点的数据  SET_PIXEL = 1, RESET_PIXEL = 0
	return				 :  none
	Description    : 	设置坐标像素点数据
***************************************************************/
void OLED_SetPixel(int16_t x, int16_t y, uint8_t set_pixel)
{ 
	if (x >= 0 && x < displayWidth && y >= 0 && y < displayHeight) {
		if(set_pixel){
				OLED_RAM[y/8][x] |= (0x01 << (y%8));
		}  
		else{
				OLED_RAM[y/8][x] &= ~(0x01 << (y%8));
		}
	}
}

/**************************************************************
	Prototype      :  void OLED_GetPixel(int16_t x, int16_t y)
	Parameters     : 	x,y -- 起始点坐标(x:0~127, y:0~63); 
	return				 :  PixelStatus 像素点状态 	SET_PIXEL = 1, RESET_PIXEL = 0
	Description    : 	获得坐标像素点数据	
***************************************************************/
PixelStatus OLED_GetPixel(int16_t x, int16_t y)
{
	 if(OLED_RAM[y/8][x] >> (y%8) & 0x01)
		 return SET_PIXEL;
	 
	return	RESET_PIXEL;
}

/**************************************************************
	Prototype      : void OLED_ShowStr(int16_t x, int16_t y, uint8_t ch[], uint8_t TextSize)
	Parameters     : 	x,y -- 起始点坐标(x:0~127, y:0~63); 
										ch[] -- 要显示的字符串; 
										TextSize -- 字符大小(1:6*8 ; 2:8*16)
	return				 :  none
	Description    : 	显示codetab.h中的ASCII字符,有6*8和8*16可选择
***************************************************************/
void OLED_ShowStr(int16_t x, int16_t y, uint8_t ch[], uint8_t TextSize)
{ 
	if (x >= 0 && x < displayWidth && y >= 0 && y < displayHeight) {
		int32_t c = 0;
		uint8_t j = 0;
	
		switch(TextSize)
		{
			case 1:
			{
				while(ch[j] != '\0')
				{
					c = ch[j] - 32;
					if(c < 0)	//无效字符
						break;
					
					if(x >= 125 || (127-x < 6))//一行最大显示字符数：21字节显示,多出两列，不显示 || 剩余列小于6不能显示完整字符，换行显示
					{
						x = 0;
						y += 8;//换行显示
						if(63 - y < 8)	// 不足以显示一行时不显示
							break;
					}
					for(uint8_t m = 0; m < 6; m++)
					{
						for(uint8_t n = 0; n < 8; n++)
						{
							OLED_SetPixel(x+m, y+n, (F6x8[c][m] >> n) & 0x01);
						}
					}
					x += 6;
					j++;
				}
			}break;
			case 2:
			{
				while(ch[j] != '\0')
				{
					c = ch[j] - 32;
					if(c < 0)	//无效字符
						break;
					
					if(x >= 127 || (127-x < 8))//16字节显示 || 剩余列小于8不能显示完整字符，换行显示
					{
						x = 0;
						y += 16;//换行显示
						if(63 - y < 16)	// 不足以显示一行时不显示
							break;
					}
					for(uint8_t m = 0; m < 2; m++)
					{
						for(uint8_t n = 0; n < 8; n++)
						{
							for(uint8_t i = 0; i < 8; i++)
							{
									OLED_SetPixel(x+n, y+i+m*8, (F8X16[c][n+m*8] >> i) & 0x01);
							}
						}	
					}
					x += 8;
					j++;
				}
			}break;
		}
	}
	OLED_RefreshRAM();
}

/**************************************************************
	 Prototype      : void OLED_ShowCN(int16_t x, int16_t y, uint8_t* ch)
	 Parameters     : x,y -- 起始点坐标(x:0~127, y:0~7); 
										CN[]:汉字在codetab.h中的索引
	 return				  : none
	 Description    : 显示codetab.h中的汉字,16*16点阵
***************************************************************/
void OLED_ShowCN(int16_t x, int16_t y, uint8_t* ch)
{
	if (x >= 0 && x < displayWidth && y >= 0 && y < displayHeight) {
		int32_t  len = 0,offset = sizeof(F16x16_CN[0].index);
		
		while(ch[len] != '\0')
		{
			if(x >= 127 || (127-x < 16))//8个汉字显示||剩余列小于16不能显示完整字符，换行显示
			{
				x = 0;
				y += 16;
				if(63 - y < 16)	// 不足以显示一行时不显示
					break;
			}
					
			//需要处理输入数据大于显示数据的问题
			for(uint8_t i = 0; i < sizeof(F16x16_CN)/sizeof(GB2312_CN); i++)
			{
				if(((F16x16_CN[i].index[0] == ch[len]) && (F16x16_CN[i].index[1] == ch[len+1]))){
						for(uint8_t m = 0; m < 2; m++)	//页
						{
								for(uint8_t n = 0; n < 16; n++) // 列
								{
										for(uint8_t j = 0; j < 8; j++)	// 行
										{
											OLED_SetPixel(x+n, y+j+m*8, (F16x16_CN[i].encoder[n+m*16] >> j) & 0x01);
										}
								}
						}			
						x += 16;
						len += offset;
						break;
				}
				else if(F16x16_CN[i].index[0] == ch[len] && ch[len] == 0x20){
					for(uint8_t m = 0; m < 2; m++)
					{
							for(uint8_t n = 0; n < 16; n++)
							{
								for(uint8_t j = 0; j < 8; j++)
								{
									OLED_SetPixel(x+n, y+j+m*8, (F16x16_CN[i].encoder[n+m*16] >> j) & 0x01);
								}								
							}	
					}			
					x += 16;
					len++;
					break;
				}
			}
		}
	}
	OLED_RefreshRAM();
}

/**************************************************************
	 Prototype      : void OLED_Show_MixedCH(int16_t x, int16_t y, uint8_t* ch)
	 Parameters     : x,y -- 起始点坐标(x:0~127, y:0~7); CN[]:汉字在codetab.h中的索引
	 return				  : none
	 Description    : 显示codetab.h中的汉字,16*16点阵,英文,8*16点阵
***************************************************************/
void OLED_ShowMixedCH(int16_t x, int16_t y, uint8_t* ch)
{
	if (x >= 0 && x < displayWidth && y >= 0 && y < displayHeight) {
		int32_t len = 0, c,offset = sizeof(F16x16_CN[0].index);

		while(ch[len] != '\0')
		{
			if(ch[len] >= 0xa1)//GB2312从0xA1A0开始
			{
				for(uint8_t i = 0; i < sizeof(F16x16_CN)/sizeof(GB2312_CN); i++)
				{
					if(((F16x16_CN[i].index[0] == ch[len]) && (F16x16_CN[i].index[1] == ch[len+1])))
					{
						if(x >= 127|| (127-x < 16))//8个汉字显示||剩余列小于16不能显示完整字符，换行显示
						{
							x = 0;
							y += 16;
							if(63 - y < 16)	// 不足以显示一行时不显示
								break;
						}
						for(uint8_t m = 0; m < 2; m++)	//页
						{
								for(uint8_t n = 0; n < 16; n++)	//列
								{
									for(uint8_t j = 0; j < 8; j++)	//行
									{
	
										OLED_SetPixel(x+n, y+j+m*8, (F16x16_CN[i].encoder[n+m*16] >> j) & 0x01);
									}		
								}								
						}			
						x += 16;
						len += offset;
						break;
					}
				}
			}
			else if(ch[len] <= 127)//ASCII编码范围0-127
			{
				c = ch[len] - 32;
				if(c < 0)	// 无效字符
					break;
				if(x >= 127 || (127-x < 8))//16字节显示 || 剩余列小于8不能显示完整字符，换行显示
				{
					x = 0;
					y += 16;
					if(63 - y < 16)	// 不足以显示一行时不显示
								break;
				}
				for(uint8_t m = 0; m < 2; m++)
				{
						for(uint8_t n = 0; n < 8; n++)
						{
							for(uint8_t i = 0; i < 8; i++)
							{
									OLED_SetPixel(x+n, y+i+m*8, (F8X16[c][n+m*8] >> i) & 0x01);
							}
						}
				}
				x += 8;
				len++;
			}
		}
	}
	OLED_RefreshRAM();
}

/***************************************************************
	 Prototype      :	void OLED_DrawBMP(int16_t x0,int16_t y0,int16_t L,int16_t H,const uint8_t BMP[])
	 Parameters     : (x0,y0)坐标长L宽H区域绘制图像BMP
										0<=x0<=127 0<=y0<=63 0<=L+x0<=127 0<=H+y0<= 63 图像取模 纵向取模，字节倒序
	 return				  : none
	 Description    : 区域图像绘制，显示BMP位图,格式使用二维数组存储
***************************************************************/
void OLED_DrawBMP(int16_t x0,int16_t y0,int16_t L,int16_t H,const uint8_t BMP[])
{
	if (x0 >= 0 && x0 < displayWidth && x0+L <= displayWidth &&\
		y0 >= 0 && y0 < displayHeight && y0+H <= displayHeight) {
		
		uint8_t *p = (uint8_t *)BMP;
		for(int16_t y = y0; y < y0+H; y+=8)
		{
			for(int16_t x = x0; x < x0+L; x++)
			{
				for(int16_t i = 0; i < 8; i++)
				{
//					OLED_SetPixel(x, y+i, ((*((uint8_t *)BMP+(x-x0)+L*((y-y0)/8))) >> i) & 0x01);
						OLED_SetPixel(x, y+i, ((*p) >> i) & 0x01);
				}
				p++;
			}
		}
	}
	OLED_RefreshRAM();
}

/***************************************************************
	 Prototype      :	void OLED_AreaFill(int16_t x0,int16_t y0,int16_t L,int16_t H)
	 Parameters     : 区域内容清除，(x0,y0)坐标长L宽H区域
										0<=x0<=127 0<=y0<=63 0<=L+x0<=127 0<=H+y0<= 63 图像取模 纵向取模，字节倒序
	 return				  : none
	 Description    : 规定区域内容填充
***************************************************************/
void OLED_AreaFill(int16_t x0,int16_t y0,int16_t L,int16_t H, uint8_t fill_data)
{
	if (x0 >= 0 && x0 < displayWidth && x0+L <= displayWidth &&\
		y0 >= 0 && y0 < displayHeight && y0+H <= displayHeight) {
		
		for(int16_t y = y0; y < y0+H; y++)
		{
			for(int16_t x = x0; x < x0+L; x++)
			{
				for(int16_t i = 0; i < 8; i++)
					{
							OLED_SetPixel(x, y+i, (fill_data >> i) & SET_PIXEL);
					}
			}
		}
		OLED_RefreshRAM();
	}
}

/***************************************************************
	 Prototype      :	void OLED_AreaCLR(int16_t x0,int16_t y0,int16_t L,int16_t H)
	 Parameters     : (x0,y0)坐标长L宽H区域
										0<=x0<=127 0<=y0<=63 0<=L+x0<=127 0<=H+y0<= 63 图像取模 纵向取模，字节倒序
	 return				  : none
	 Description    : 规定区域内容清除
***************************************************************/
void OLED_AreaClear(int16_t x0,int16_t y0,int16_t L,int16_t H)
{
	if (x0 >= 0 && x0 < displayWidth && x0+L <= displayWidth &&\
		y0 >= 0 && y0 < displayHeight && y0+H <= displayHeight) {
		
		for(int16_t y = y0; y < y0+H; y+=8)
		{
			for(int16_t x = x0; x < x0+L; x++)
			{
				for(int16_t i = 0; i < 8; i++)
					{
							OLED_SetPixel(x, y+i, RESET_PIXEL);
					}
			}
		}		
		OLED_RefreshRAM();
	}
}

/***************************************************************
	 Prototype      :	void OLED_FullyToggle(void)
	 Parameters     : none
	 return				  : none
	 Description    : 缓冲区数据取反后刷新到GDDRAM
***************************************************************/
void OLED_FullyToggle(void)
{
	for(uint16_t m = 0; m < displayHeight/8; m++)
	{
		for(uint16_t n = 0; n < displayWidth; n++)
		{
				OLED_RAM[m][n] = ~OLED_RAM[m][n];
		}
	}
	OLED_RefreshRAM();
}
/***************************************************************
	 Prototype      :	void OLED_AreaToggle(int16_t x0,int16_t y0,int16_t L,int16_t H)
	 Parameters     : (x0,y0)坐标长L宽H区域
										0<=x0<=127 0<=y0<=63 0<=L+x0<=127 0<=H+y0<= 63 图像取模 纵向取模，字节倒序
	 return				  : none
	 Description    : 规定区域内容取反
***************************************************************/
void OLED_AreaToggle(int16_t x0,int16_t y0,int16_t L,int16_t H)
{
	if (x0 >= 0 && x0 < displayWidth && x0+L <= displayWidth &&\
		y0 >= 0 && y0 < displayHeight && y0+H <= displayHeight) {
		
		for(int16_t y = y0; y < y0+H; y+=8)
		{
			for(int16_t x = x0; x < x0+L; x++)
			{
				for(int16_t i = 0; i < 8; i++)
					{
							OLED_SetPixel(x, y+i, !OLED_GetPixel(x, y+i));
					}
			}
		}		
		OLED_RefreshRAM();
	}
}

/****************************************************************
	全屏垂直偏移,0->63方向
	方向垂直向上,范围0-63
	方向垂直向下,范围63-0
****************************************************************/
void OLED_VerticalShift(void)
{
	for(uint8_t i = 0; i < displayHeight; i++)
		{
			WriteCmd(0xd3);//设置显示偏移，0->63方向
			WriteCmd(i);//偏移量
			HAL_Delay(40);//延时时间
		}
}

/****************************************************************
	屏幕内容水平全屏滚动播放
	左		LEFT	0x27
	右		RIGHT	0x26
****************************************************************/
void OLED_HorizontalShift(uint8_t direction)

{
	WriteCmd(direction);//设置滚动方向
	WriteCmd(0x00);//虚拟字节设置，默认为0x00
	WriteCmd(0x00);//设置开始页地址
	WriteCmd(0x05);//设置每个滚动步骤之间的时间间隔的帧频
	WriteCmd(0x07);//设置结束页地址
	WriteCmd(0x00);//虚拟字节设置，默认为0x00
	WriteCmd(0xff);//虚拟字节设置，默认为0xff
	WriteCmd(0x2f);//开启滚动-0x2f，禁用滚动-0x2e，禁用需要重写数据
}

/****************************************************************
	屏幕内容垂直水平全屏滚动播放
	上		UP		0x29
	下		DOWN	0x2A
****************************************************************/
void OLED_VerticalAndHorizontalShift(uint8_t direction)
{
	WriteCmd(direction);//设置滚动方向
	WriteCmd(0x00);//虚拟字节设置，默认为0x00
	WriteCmd(0x00);//设置开始页地址
	WriteCmd(0x05);//设置每个滚动步骤之间的时间间隔的帧频
	WriteCmd(0x07);//设置结束页地址
	WriteCmd(0x01);//垂直滚动偏移量
	
	WriteCmd(0x2f);//开启滚动-0x2f，禁用滚动-0x2e，禁用需要重写数据
}

/****************************************************************
	屏幕内容取反显示
	开	ON	0xA7
	关	OFF	0xA6	默认此模式，设置像素点亮
****************************************************************/
void OLED_DisplayMode(uint8_t mode)
{
	WriteCmd(mode);
}

/****************************************************************
	屏幕亮度调节
	intensity	0-255
	默认为0x7f
****************************************************************/
void OLED_IntensityControl(uint8_t intensity)
{
	WriteCmd(0x81);
	WriteCmd(intensity);
}




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这个源文件中如果使用的其他I2C，就改成对应的I2C即可，比如：我这里使用的是I2C1就是hi2c1,如果你使用的是I2C2，就直接改成hi2c2,该驱动适合GB2312编码格式。
oled.h文件如下：

#ifndef OLED_H__
#define OLED_H__

#include "stm32f1xx_hal.h"	//链接HAL库
/* BMP图片声明 
	图片格式为二位数组，下标分别对应图片的宽和高：
		BMP_xx[H/8][L];
*/
extern const uint8_t BMP_Picture[64/8][64];


/* 设置坐标点的状态 */
typedef enum 
{
	SET_PIXEL = 0x01,
  RESET_PIXEL = 0x00, 
} PixelStatus;


/* 功能函数声明 */
//写数据，硬件IIC使用
void HAL_I2C_WriteByte(uint8_t addr,uint8_t data);
//写命令
void WriteCmd(uint8_t IIC_Command);
//写数据
void WriteDat(uint8_t IIC_Data);
//初始化OLED
void OLED_Init(void);
//开启电荷泵
void OLED_ON(void);
//关闭电荷泵
void OLED_OFF(void);
//刷新缓冲区数据到GDDRAM
void OLED_RefreshRAM(void);
//清除数据缓冲区OLED_RAM buffer
void OLED_ClearRAM(void);
//全屏填充
void OLED_FullyFill(uint8_t fill_Data);
//清屏
void OLED_FullyClear(void);
//设置坐标像素点数据
void OLED_SetPixel(int16_t x, int16_t y, uint8_t set_pixel);
//获得坐标像素点数据
PixelStatus OLED_GetPixel(int16_t x, int16_t y);

/* 显示指定字符和图片时需要手动刷新缓冲区到GDDRAM 
* function list: OLED_ShowStr\OLED_ShowCN\OLED_Show_MixedCH\OLED_DrawBMP
*/
//显示英文字符串
void OLED_ShowStr(int16_t x, int16_t y, uint8_t ch[], uint8_t TextSize);
//显示中文字符串
void OLED_ShowCN(int16_t x, int16_t y, uint8_t* ch);
//显示中英文混合文字
void OLED_ShowMixedCH(int16_t x, int16_t y, uint8_t* ch);
//显示图片
void OLED_DrawBMP(int16_t x0,int16_t y0,int16_t L,int16_t H,const uint8_t BMP[]);

//区域填充
void OLED_AreaFill(int16_t x0,int16_t y0,int16_t L,int16_t H, uint8_t fill_data);
//区域清除
void OLED_AreaClear(int16_t x0,int16_t y0,int16_t L,int16_t H);
//全屏切换显示
void OLED_FullyToggle(void);
//区域切换显示
void OLED_AreaToggle(int16_t x0,int16_t y0,int16_t L,int16_t H);
//全屏垂直滚动播放
void OLED_VerticalShift(void);
//全屏水平滚动播放
void OLED_HorizontalShift(uint8_t direction);
//全屏同时垂直和水平滚动播放
void OLED_VerticalAndHorizontalShift(uint8_t direction);
//屏幕内容取反显示
void OLED_DisplayMode(uint8_t mode);
//屏幕亮度调节
void OLED_IntensityControl(uint8_t intensity);


#endif




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本文件主要是对一些函数的声明，函数具体使用也是有注释的。
还有一个比较重要的文件，字库文件：
font.h文件

/************************************************************************************
*  Copyright (c), 2021.04, ZeroCHN.
*            All rights reserved.
*
* Description:
* 1. 128*64点整OLED模块功能演示程序的字表
* 2. 取字方式 -- 共阴、列行式、逆向输出
*
*	version: 1.2
*
*************************************************************************************/
#ifndef FONT_H__
#define FONT_H__
#ifdef __cplusplus
 extern "C" {
#endif

#include "stm32f1xx_hal.h"

/************************************6*8的点阵************************************/
const uint8_t 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 uint8_t F8X16[][16]=	  
{
  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
};

/************************************
	汉字字模数据结构             
	1.汉字内码索引                 
	点阵码数据 
************************************/
typedef struct {     
    char index[2];                                             
    uint8_t encoder[32];                                             
}GB2312_CN;

/* 添加中文字体，请添加为16个元素的一维数组模式 */
const GB2312_CN F16x16_CN[] = {
	{"温",
	0x10,0x60,0x02,0x8C,0x00,0x00,0xFE,0x92,0x92,0x92,0x92,0x92,0xFE,0x00,0x00,0x00,0x04,0x04,0x7E,0x01,0x40,0x7E,0x42,0x42,0x7E,0x42,0x7E,0x42,0x42,0x7E,0x40,0x00,/*"温"*/
	},
	{"度",
	0x00,0x00,0xFC,0x24,0x24,0x24,0xFC,0x25,0x26,0x24,0xFC,0x24,0x24,0x24,0x04,0x00,0x40,0x30,0x8F,0x80,0x84,0x4C,0x55,0x25,0x25,0x25,0x55,0x4C,0x80,0x80,0x80,0x00,/*"度"*/
	}
};

/* 添加图片请按照高*宽的模式添加 
	BMP图片声明,图片格式为二位数组，下标分别对应图片的宽和高：
		BMP_xx[H/8][L];
*/
const uint8_t BMP_Picture[64/8][64] = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x40,0x30,0x1E,
0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x3C,0x40,0x60,0x20,0x20,0x20,0x20,
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x60,0xC0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x30,0x10,0x10,0x08,0x04,0x04,0x02,0xFD,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x10,0x10,0x0C,0x06,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,
0x00,0x30,0x10,0x10,0x10,0x10,0x10,0x08,0x08,0x04,0x07,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFB,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0x30,0x00,0x00,0x00,0x00,0x03,
0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x00,0x00,0x50,0x80,0x00,0x00,0x80,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x70,0xF0,0x0F,
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,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};



//encode

#ifdef __cplusplus
}
#endif
#endif





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该驱动可以显示汉字，字符，图片等，取模方式：共阴、列行式、逆向输出
直接把这几个文件添加到创建的工程中即可使用

在这里插入图片描述
注意：
1、主函数在调用显示函数时一定要先调用初始化函数。
2、调用完显示函数，记得刷新缓存。

**

2024/4/28更新：

**
对于评论区和私信提到的怎么显示数字、浮点数等问题的方法：
使用sprintf库函数进行格式化为字符串显示，比如:我要显示一个整数：

int num = 100;
uint8_t buff[30];
sprintf((uint8_t *)buff,"num = %d",num);
OLED_ShowMixedCH(0,0,buff);

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再比如:我要显示一个浮点数：

float num = 3.14159f;
uint8_t buff[30];
sprintf((uint8_t *)buff,"num = %.2f",num);
OLED_ShowMixedCH(0,0,buff);//该显示结果为保留小数后面2位 num = 3.14

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以上就是显示浮点数和整数的显示方法。

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