【笔记】I2C接口OLED显示屏——显示字符以及字符串

关于OLED模块的小总结

1. OLED模块

首先是所用的OLED模块的一些参数
尺寸：0.96寸
分辨率：128*64
通信方式：I2C
模块内部驱动芯片：SSD1315
管脚定义：GND、VCC、SCK、SDA

1.1 接口方式

OLED模块提供了4种接口方式有，分别是：6800、8080两种并行接口方式、 4线的穿行SPI接口方式、IIC接口方式；接口方式是由硬件电路来确定的，具体参数详情可参考对应驱动芯片的数据手册；

2. OLED模块初始化

OLED的发光原理不同于LCD，即使上电也无法显示内容，得输入正确的代码才能进行正常显示；OLED模块在使用前进行初始化，之后才能正常显示指定内容，下面OLED模块初始化代码：

//注释只是对命令字节简单的介绍
//关于初始化命令字节的详细描述，可以参考对应驱动芯片的数据手册
//OLED模块初始化
OLED_I2C_Write_Byte(0xAE, OLED_CMD);	//display off --- 关闭显示
OLED_I2C_Write_Byte(0x00, OLED_CMD);	//set lower column address --- 设置起始列地址的低四位，00h~0Fh
OLED_I2C_Write_Byte(0x10, OLED_CMD);	//set higher column address --- 设置起始列地址的高四位，10h~17h
OLED_I2C_Write_Byte(0x40, OLED_CMD);	//set display start line --- 设置起始行寄存器，04h~7Fh
OLED_I2C_Write_Byte(0xB0, OLED_CMD);	//set page address --- 设置页地址，B0h~B7h
OLED_I2C_Write_Byte(0x81, OLED_CMD);	//set contrast control --- 设置对比度
OLED_I2C_Write_Byte(0x7F, OLED_CMD);	//127，01h~FFh
OLED_I2C_Write_Byte(0xA1, OLED_CMD);	//set segment remap --- 设置SEG重映射，A0h/A1h
OLED_I2C_Write_Byte(0xA6, OLED_CMD);	//normal display --- 即“1”点亮像素点
										//A6h --- “1”点亮像素点
										//A7h --- “0”点亮像素点
OLED_I2C_Write_Byte(0xA8, OLED_CMD);	//set multiplex ratio --- 设置多路复用率
OLED_I2C_Write_Byte(0x3F, OLED_CMD);	//duty = 1/64，00h~3Fh
OLED_I2C_Write_Byte(0xC8, OLED_CMD);	//com scan direction --- Com口扫描方向，C0h/C8h
OLED_I2C_Write_Byte(0xD3, OLED_CMD);	//set display offset --- 设置显示抵消
OLED_I2C_Write_Byte(0x00, OLED_CMD);	//00h~3Fh
	
OLED_I2C_Write_Byte(0xD5, OLED_CMD);	//set osc division --- 设置时钟分配和振荡频率
OLED_I2C_Write_Byte(0x80, OLED_CMD);	
	
OLED_I2C_Write_Byte(0xD9, OLED_CMD);	//set pre-charge period --- 设置预充电周期
OLED_I2C_Write_Byte(0x22, OLED_CMD);	
	
OLED_I2C_Write_Byte(0xDA, OLED_CMD);	//set com pin configuration --- 设置COM口引脚配置
OLED_I2C_Write_Byte(0x12, OLED_CMD);	
	
OLED_I2C_Write_Byte(0xDB, OLED_CMD);	//set vcomh --- 设置COM电压等级
OLED_I2C_Write_Byte(0x20, OLED_CMD);	//0x00 —— 0.65*Vcc
										//0x10 —— 0.71*Vcc
										//0x20 —— 0.77*Vcc
										//0x30 —— 0.83*Vcc
	
OLED_I2C_Write_Byte(0x8D, OLED_CMD);	//set charge pump enable --- 设置电荷泵使能
OLED_I2C_Write_Byte(0x14, OLED_CMD);	
	
OLED_I2C_Write_Byte(0xAF, OLED_CMD);	//display on --- 打开显示

3. 显示字符和字符串

在初始化OLED之后，如何在屏幕上显示字符呢？
在这之前，先了解一下SSD1315内部的RAM；SSD1315内部有个SRAM称为GDDRAM（Graphic Display Data RAM），大小是128 × 64 bits，被分为8个 PAGE，用于单色128×64点阵显示，当我们往这个RAM写入数据，就会显示特定内容，如图：

每个PAGE8行，共128列；当写入一个字节数据时，该字节数据会以低位在上，高位在下的形式，写入当前列的同一个PAGE的所有行，如图所示：

接下来再说说内存寻址模式，SSD1315有3种内存寻址模式，分别是： 页寻址模式（page addressing mode）, 水平寻址模式（horizontal addressing mode）和垂直寻址模式（vertical addressing mode），分别对应的命令字节为：20h、21h、22h，因为OLED模块复位之后默认是 page addressing mode，所以下面只讲页寻址模式；其他两种模式跟页寻址模式的差异就是地址指针自增方式不一样，详情可以参考一下SSD1315的数据手册。

在页寻址模式下，每当对RAM进行读写操作之后，列地址指针会自动+1，直到列地址指针指向列结束地址后，会重新指向列开始地址；而且在该模式下，一定要设置新的页面和列地址才能访问下一个页面的内容，也就是下面这两行代码：

//写入的页地址和列地址根据自身需求来定
//这只是个例子
OLED_I2C_Write_Byte(0xB0, OLED_CMD);	//set page address --- 设置页地址，B0h~B7h
OLED_I2C_Write_Byte(0x00, OLED_CMD);	//set lower column address --- 设置起始列地址的低四位，00h~0Fh
OLED_I2C_Write_Byte(0x10, OLED_CMD);	//set higher column address --- 设置起始列地址的高四位，10h~17h
										//上面两个参数共同决定了列地址的值，范围是00h~7Fh，即0~127

在确定在OLED的显示位置后，就是如何生成字模并将表示字模数据发送给OLED了。
ASCII字符的字体大小是可以通过取模软件自定的，但常用的字体大小是8×16和6×12这两种，因为字体太小会看不清，字体太大的话就太占空间，下面以8×16的字体来举例。
一个8×16大小的字体需要占用8×16个bit的空间，也就是说需要占用8列×2个PAGE，所以128×64的OLED一共能显示4行，每行16个这个大小的字符。然后再来了解一下如何生成ASCII字符的字模，我用的取模软件是 PCtoLCD2002，取模过程如图所示：

1. 选择字符模式
   
   2.点击选项，按照图片所示进行设置
   
   对面部分选项进行说明
   阴码（亮为1）还是阳码（亮为0）是要根据命令字节A6h/A7h来决定的。
   “取模方式”要根据设置的寻址方式来选择，具体取模过程可以参考右下角的“取模演示”，取模方式要和寻址方式对应。
   “每行显示数据”会影响生成字模数据的格式，因为只是影响到数据的格式，字模数据本身是正确的，所以影响不大，可以根据自身的需求去修改格式。

2. 设置完之后，在输入栏内输入字符，然后点击生成字模即可
   
   PS：如果想生成字体大小为6×12的字模，可修改字宽和字高的参数。

那就是说，如果想在OLED的第1页第1列上显示一个字符，先设置页地址为0xB0和列地址为0x00和0x10，再写入该字符的字节数据的前8个字节，然后再设置页地址为0xB1和列地址为0x00和0x10，再写入该字符的字节数据的后8个字节，这样就实现在OLED显示一个字符了。
搞定了显示单个字符，那显示字符串也不是什么问题了，因为显示字符串就是向OLED连续写入字符而已，只需要在程序上加入一个循环就能实现了。
实现代码如下：

//显示字符
void OLED_Show_Char(u8 row, u8 col, u8 ascii_char)
{
	u8 i,j;
	
	i = ascii_char - ' ';	//获取字符偏移量，这是因为字库跟标准ASCII码表相差32，即一个空格
	
	OLED_I2C_Write_Byte((0xB0+(row&0x07)),OLED_CMD);	//设置页地址
	OLED_I2C_Write_Byte((col&0x0F), OLED_CMD);			//设置列地址
	OLED_I2C_Write_Byte(((col&0xF0)>>4)|0x10, OLED_CMD);
	for(j=0;j<8;j++)
	{
		OLED_I2C_Write_Byte(oled_fonts1608[i][j], OLED_DAT);
	}

	OLED_I2C_Write_Byte((0xB0+(row&0x07)+1),OLED_CMD);	//设置下一页地址
	OLED_I2C_Write_Byte((col&0x0F), OLED_CMD);			//设置列地址
	OLED_I2C_Write_Byte(((col&0xF0)>>4)|0x10, OLED_CMD);
	for(j=0;j<8;j++)
	{
		OLED_I2C_Write_Byte(oled_fonts1608[i][j+8], OLED_DAT);
	}
}

//显示字符串
void OLED_Show_String(u8 row, u8 col, u8 *ascii_string)
{
	while(*ascii_string != '\0')
	{
		if(col == 128)	//防止出现长度大于16的字符串在同一行显示的情况
		{
			col = 0;
			row += 2;
		}
		OLED_Show_Char(row, col, *ascii_string);
		col += 8;
		ascii_string++;
	}
}

//ASCII表可显示字符
//字体大小：8 × 16
const unsigned char oled_fonts1608[][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
};

显示汉字跟显示字符不同的是，汉字的大小通常是16×16，所以在代码上会有稍微的修改，但大体上都是一致的，这里就不再进行举例了。
至于显示图片，唯一要注意的一点是图片的格式必须是BMP格式，不然是无法对其进行正确取模的。

我深知自己表达能力不强，有什么表达不清楚的地方，请多多包涵。
希望你看完这篇小小的文章后能有所收获。