0.96寸(128*64) OLED(SSD1306) 中英显示篇

总线接口模式

(现使用的比较多的是4线SPI控制和 I2C控制，接下来将以I2C控制为例子)

I2C总线数据格式

(数据的转换是在I2C协议线中的SCL为低时，进行数据调整)

内容数据映射的分布图 (I2C的读写时序就不重复造轮子嘞，接下来对屏幕显示的驱动细节做一些要点的总结和整理)

当前以128*63尺寸的屏幕，以页模式划分，自上而下共8页(页的概念对等等，点亮屏幕的代码非常关键)，每一页的宽度为8个单位数据，共128列 (128列在后续将作为 x坐标可移动范围)。

指令表

写入模式

(上图为页地址模式，写入模式有页地址、水平地址、垂直地址模式)

将OLED屏幕抽象到页地址模式上，其左边界为页起始，每个小正方形为一个bit的图像数据

当将数据写到上述的抽象空间中，需要将想要的字进行处理，俗称“提取字模”

对于所提取的不同类型的字，其扫描的范围一般不同，比如ASCII的字母一般是长方形，而中文简体汉字一般是正方形，

(以汉字16*16的尺寸为例，进行字模配置，配置完，输入想要的汉字或字母，生成字模即可)

const unsigned char chinese_time[][32] = 
{
    0x00,0x20,0x18,0xC7,0x44,0x44,0x44,0x44,0xFC,0x44,0x44,0x44,0x44,0x04,0x00,0x00,
    0x04,0x04,0x04,0x07,0x04,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x00, /*"年",0*/
	
    0x00,0x00,0x00,0xFE,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0xFE,0x00,0x00,0x00,
    0x80,0x40,0x30,0x0F,0x02,0x02,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x00,0x00,0x00,/*"月",1*/
	
    0x00,0x00,0x00,0xFE,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0xFE,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0xFF,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0xFF,0x00,0x00,0x00,0x00,/*"日",2*/
	
    0x00,0xF8,0x01,0x22,0x20,0x22,0x2A,0xF2,0x22,0x22,0x22,0x22,0x02,0xFE,0x00,0x00,
    0x00,0xFF,0x00,0x00,0x1F,0x01,0x01,0x7F,0x09,0x11,0x0F,0x40,0x80,0x7F,0x00,0x00,/*"闹",3*/
	
    0x20,0x10,0x2C,0xE7,0x24,0x24,0x00,0xF0,0x10,0x10,0xFF,0x10,0x10,0xF0,0x00,0x00,
    0x01,0x01,0x01,0x7F,0x21,0x11,0x00,0x07,0x02,0x02,0xFF,0x02,0x02,0x07,0x00,0x00,/*"钟",4*/
};

(上述取模，闹钟年月日)

const unsigned char ascii_8X16[][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
};

(上述为ASCII的各字符)

写数据与指令

首先需要完成写字节的时序

void oled_i2c_write_byte(uint8_t data)
{
    uint8_t i, tmp;
    tmp = data;
    
    for(i = 0; i < 8; i++)
    {
        if((tmp & 0x80) == 0x80)
            OLED_SDA_SET();    //拉高
        else
            OLED_SDA_RESET();  //拉低
        tmp = tmp << 1;

        OLED_SCL_SET();
        OLED_SCL_RESET();      //拉高低调整数据
    }
}

通过区分数据与指令的命令地址，来写数据或者写指令

void oled_write_cmd(uint8_t cmd)
{
    oled_i2c_start();
    oled_i2c_write_byte(0x78);
    oled_i2c_ack();
    oled_i2c_write_byte(0x00);
    oled_i2c_ack();
    oled_i2c_write_byte(cmd);
    oled_i2c_ack();
    oled_i2c_stop();
}

void oled_write_data(uint8_t data)
{
    oled_i2c_start();
    oled_i2c_write_byte(0x78);
    oled_i2c_ack();
    oled_i2c_write_byte(0x40);
    oled_i2c_ack();
    oled_i2c_write_byte(data);
    oled_i2c_ack();
    oled_i2c_stop();
}

(清空数据)

void oled_fill(uint8_t data)
{
    uint8_t i, j;
    for(i = 0; i < 8; i++)
    {
        oled_set_cursor(0, i);
        for(j = 0; j < 128; j++)
            oled_write_data(data);
    }
}

OLED设备的初始化

void oled_init(void)
{
    oled_gpio_init();
    
    delay_ms(100);
    
    oled_write_cmd(0xAE);    //设置显示开启/关闭，0xAE关闭，0xAF开启

    oled_write_cmd(0xD5);    //设置显示时钟分频比/振荡器频率
    oled_write_cmd(0x80);    //0x00~0xFF

    oled_write_cmd(0xA8);    //设置多路复用率
    oled_write_cmd(0x3F);    //0x0E~0x3F

    oled_write_cmd(0xD3);    //设置显示偏移
    oled_write_cmd(0x00);    //0x00~0x7F

    oled_write_cmd(0x40);    //设置显示开始行，0x40~0x7F

    oled_write_cmd(0xA1);    //设置左右方向，0xA1正常，0xA0左右反置

    oled_write_cmd(0xC8);    //设置上下方向，0xC8正常，0xC0上下反置

    oled_write_cmd(0xDA);    //设置COM引脚硬件配置
    oled_write_cmd(0x12);

    oled_write_cmd(0x81);    //设置对比度
    oled_write_cmd(0xCF);    //0x00~0xFF

    oled_write_cmd(0xD9);    //设置预充电周期
    oled_write_cmd(0xF1);

    oled_write_cmd(0xDB);    //设置VCOMH取消选择级别
    oled_write_cmd(0x30);

    oled_write_cmd(0xA4);    //设置整个显示打开/关闭

    oled_write_cmd(0xA6);    //设置正常/反色显示，0xA6正常，0xA7反色

    oled_write_cmd(0x8D);    //设置充电泵
    oled_write_cmd(0x14);

    oled_write_cmd(0xAF);    //开启显示
    
    oled_fill(0x00);
}

字模扫描并显示

设置起始坐标

void oled_set_cursor(uint8_t x, uint8_t y)
{
    oled_write_cmd(0xB0 + y);
    oled_write_cmd((x & 0x0F) | 0x00);
    oled_write_cmd(((x & 0xF0) >> 4) | 0x10);
}

字符显示

void oled_show_char(uint8_t x, uint8_t y, uint8_t num, uint8_t size)
{
    uint8_t i, j, page;
    
    num = num - ' ';   //字符相对偏移量, num为字模数组中指定字符
    page = size / 8;   //size 字宽； 设置页数

    if(size % 8)
        page++;        //有余数，补充页数
    
    for(j = 0; j < page; j++)
    {
        oled_set_cursor(x, y + j);    // y为页起始地址
        for(i = size / 2 * j; i < size /2 * (j + 1); i++)
        {
            if(size == 16)
                oled_write_data(ascii_8X16[num][i]);  //通过偏移量确定，后续，汉字的话通过指定排位来确定    
        }
    }
}


void oled_printfChar(unsigned char x, unsigned char y, unsigned char val )
{ 
    unsigned char character = 0;
    unsigned char i = 0;
    
    character = val-' ';   // ASCII offset
    
	if( x > X_WIDTH-1){    //overflow handle   
      x = 0;
      y += 2;              //当超过128宽时，页数偏移2 
    }
    
    if( charSize == FONT_16 )   //16宽 分两页显示，一页0~8byte，一页8~16byte
    {
          oled_setPostion(x,y);	
          for( i = 0; i < 8; i++)  
          {
              oled_write(F8X16[character*16+i],DATA); //char width 8   high 16;   0-8
          }
          
          oled_setPostion(x,y+1); // page +1
          for(i=0;i<8;i++)
          {
              oled_write(F8X16[character*16+i+8],DATA); // 8 as hor offset  ;    8-16
          }
     }else {
        oled_setPostion(x,y);
        for(i=0;i<6;i++){        //6宽
            oled_write(F8x6[character][i],DATA); // width i ;  only 1 page 
        }
    }
}

字符串显示

void oled_show_string(uint8_t x, uint8_t y, char *p, uint8_t size)
{
    while(*p != '\0')
    {
        oled_show_char(x, y, *p, size);
        x += size/2;
        p++;
    }
}

void oled_printfString(unsigned char x,unsigned char y,unsigned char *str){
    
    #if 0
    while ( *str != '\0' )
    {
        oled_printfChar(x,y, *str );
       
        x += 8;
        if( x > 120 )  
        {  
            x=0;
            y+=1;
        }
        
		str++;
    }
    #endif

    unsigned char index = 0;
    
    while ( str[index]!='\0' )
    {
        oled_printfChar(x,y,str[index] );
       
        x += 8;           // width offset
        if( x > 120 )     //换页，写到下一页
        {  
            x=0;
            y+=1;
        }
        index++;
    }
}

汉字显示

void oled_show_chinese(uint8_t x, uint8_t y, uint8_t N, uint8_t size)
{
    uint16_t i, j;

    for(j = 0; j < size/8; j++)   //size表示字宽
    {
        oled_set_cursor(x, y + j);
        for(i = size *j; i < size * (j + 1); i++)
        {
            if(size == 16)
                oled_write_data(chinese_16x16[N][i]);    //N表示汉字数组中的第几个
        }
    }
}

在本例中，字宽为16可以优化为

void oled_show_chinese(uint8_t x, uint8_t y, uint8_t N)
{
    uint16_t i, j;
    for(j = 0; j < 2; j++)
    {
        oled_set_cursor(x, y + j);
        for(i = 16 * j; i < 16 * (j + 1); i++)
            oled_write_data(chinese_time[N][i]);
    }
}

示例

年月日的显示

void oled_show_init(void)
{
    oled_fill(0x00);
    oled_show_string(8, 0, "2024", 16);             //2024
    oled_show_chinese(40, 0, 0);                    //年
    oled_show_string(56, 0, "08", 16);              //08
    oled_show_chinese(72, 0, 1);                    //月
    oled_show_string(88, 0, "01", 16);              //01
    oled_show_chinese(104, 0, 2);                   //日
}

后续需要显示任何汉字时

1.首先在字模软件中，根据指定大小提取字样，保存字样数组

2.在代码中，扫描字样数组中的一个或多个字，即可显示所期待的汉字

完结撒花！！！！！！！