一、SPI 通信技术
        显示屏（LCD、OLED）接口一般有I2C、SPI、UART、RGB、LVDS、MIPI、EDP和DP等。一般3.5寸以下的小尺寸LCD屏，显示数据量比较少，普遍采用低速串口，如I2C、SPI、UART。SPI（Serial Peripheral Interface）是全双工，同步的通信总线，以主从方式工作，这种模式通常有一个主设备和一个或多个从设备，需要至少4根线，事实上3根也可以（单向传输时，MISO、MISI取其一），节约了芯片的管脚。

2 `$ l' A8 t$ n/ T        这些数据线是MISO（主设备数据输入）、MOSI（主设备数据输出）、SCLK（时钟）、CS（片选）。
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（1）MISO– Master Input Slave Output，主设备数据输入，从设备数据输出；

（2）MOSI– Master Output Slave Input，主设备数据输出，从设备数据输入；
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8 v) ?6 i4 Z& a& N- b) S（3）SCLK – Serial Clock，时钟信号，由主设备产生；
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（4）CS – Chip Select，从设备使能信号，由主设备控制。
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        CS是控制芯片是否被选中的，也就是说只有片选信号为预先规定的使能信号时（高电位或低电位），对此芯片的操作才有效。。SCK提供时钟脉冲，SDI，SDO则基于此脉冲完成数据传输。
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二、SPI通信参配
3 G  o" c8 Z$ A( o6 F2 g/ K, F        本文采用的开发板是stm32L496VGT3,该开发板的OLED屏是240*240像素，采用SPI协议通讯，MCU采用4-Line SPI 的接口加上电源、重置等接口，实现 LCD 显示屏控制及输出显示，原理图如下：
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2 t! C0 s0 x* c/ [         LCD 显示屏针脚定义：
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3 m- [2 y1 X$ t; c/ F         MCU连接LCD的芯片引脚定义如下：

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         各个引脚的具体参数：
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# _$ U1 g, F% a' K. b 三、SPI设置（cubeMx）
        在cubeIDE基于stm32L496VGT3芯片创建工程，打开界面配置（cubeMx），配置OLED屏的通信相关信息。本文是在一定基础上直接操作

. T( X( u" A) ^        假设已经做好了时钟配置、lpusart调试输出，先直接设置OLED的SPI接口信息：
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        1）开启SPI1
& ?. D6 R+ Y6 P1 r        本文只是纯粹的MCU向OLED屏输出信号，因此选择Transmit Only Master模式。

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; z) I+ V% ]( H* {, Y         2）添加SPI1的DMA支持


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) V+ D! K4 D8 h- s1 L         3）开启spi1的中断功能
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& _! p. v( d, N: p5 s; S& Q         4）设置oled屏控制的辅助引脚、设置名称及调整配置参数


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) w9 `! r/ A3 V3 M( A         5）调整SPI1配置参数

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         6）完成配置后，点击保存或生成代码的按钮生成代码
四、SPI通信及OLED屏点亮
        在ICore目录创建oled文件夹，创建oled.h、oled.c的LCD驱动文件。

        1）辅助引脚设值
& Z! |4 f4 m# K8 r5 ~: I5 c        在oled.h中加入对LCD引脚（GPIO）设值控制函数

1. //对该位写1或0
   
2. #define Data_Cmd_State(__D_C_State__)        HAL_GPIO_WritePin(LCD_DCX_GPIO_Port, LCD_DCX_Pin, (GPIO_PinState)(__D_C_State__))
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3. #define OLED_RST_State(__RST_State__)        HAL_GPIO_WritePin(LCD_RST_GPIO_Port, LCD_RST_Pin, (GPIO_PinState)(__RST_State__))
   
4. #define LCD_PWR_State(__PWR_State__)        HAL_GPIO_WritePin(LCD_PWR_GPIO_Port, LCD_PWR_Pin, (GPIO_PinState)(__PWR_State__))

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        2）spi1写入数据实现
7 \& Y4 \0 l3 _5 p        通过调用HAL标准库的HAL_SPI_Transmit函数实现对spi1(hspi1)实现写入命令函数或数据写入函数，也提供LcdWriteDataMultiple函数一次写入多个数据

1. /********************************************************************
   
2. *
   
3. *   LcdWriteReg
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4. *
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5. *         Function description:
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6. *   Sets display register
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7. */
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8. void LcdWriteReg(uint8_t Data)
   
9. {
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10.           Data_Cmd_State(0);
    
11.           HAL_SPI_Transmit(&hspi1, &Data, 1, 10);
    
12. }
    
13. 
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14. /********************************************************************
    
15. *
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16. *          LcdWriteData
    
17. *
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18. *         Function description:
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19. *   Writes a value to a display register
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20. */
    
21. void LcdWriteData(uint8_t Data)
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22. {
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23.           Data_Cmd_State(1);
    
24.           HAL_SPI_Transmit(&hspi1, &Data, 1, 10);
    
25. }
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26. 
    
27. /********************************************************************
    
28. *
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29. *        LcdWriteDataMultiple
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30. *
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31. *         Function description:
    
32. *   Writes multiple values to a display register.
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33. */
    
34. void LcdWriteDataMultiple(uint8_t * pData, uint32_t NumItems)
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35. {
    
36.           Data_Cmd_State(1);
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37.           HAL_SPI_Transmit(&hspi1, pData, NumItems, 10);
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38. }

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: j+ c$ [. m" M        3）OLED初始化指令执行
" N- M" ^  ~# ?5 B        定义OLED屏的初始化指令集及指令设置函数

1. /* Init script function */
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2. struct OLED_function {
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3.   uint8_t cmd;
   
4.   uint16_t data;
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5. };
   
6. 
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7. /* Init script commands */
   
8. enum OLED_cmd {
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9.   OLED_START,
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10.   OLED_END,
    
11.   OLED_CMD,
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12.   OLED_DATA,
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13.   OLED_DELAY
    
14. };
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15. //以上可放置头文件中
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16. //以下放置源文件中
    
17. //初始化命令集
    
18. static struct OLED_function OLED_cfg_script[] = {
    
19.   {OLED_START, OLED_START},
    
20.   {OLED_CMD, 0x11},
    
21.   {OLED_DELAY, 120},
    
22.   {OLED_CMD, 0x36},
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23.   {OLED_DATA, 0x00},
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24.   {OLED_CMD, 0x3a},
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25.   {OLED_DATA, 0x65},
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26.   {OLED_CMD, 0xb2},
    
27.   {OLED_DATA, 0x0c},
    
28.   {OLED_DATA, 0x0c},
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29.   {OLED_DATA, 0x00},
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30.   {OLED_DATA, 0x33},
    
31.   {OLED_DATA, 0x33},
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32.   {OLED_CMD, 0xb7},
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33.   {OLED_DATA, 0x72},
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34.   {OLED_CMD, 0xbb},
    
35.   {OLED_DATA, 0x3d},
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36.   {OLED_CMD, 0xc0},
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37.   {OLED_DATA, 0x2c},
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38.   {OLED_CMD, 0xc2},
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39.   {OLED_DATA, 0x01},
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40.   {OLED_CMD, 0xc3},
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41.   {OLED_DATA, 0x19},
    
42.   {OLED_CMD, 0xc4},
    
43.   {OLED_DATA, 0x20},
    
44.   {OLED_CMD, 0xc6},
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45.   {OLED_DATA, 0x0f},
    
46.   {OLED_CMD, 0xd0},
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47.   {OLED_DATA, 0xa4},
    
48.   {OLED_DATA, 0xa1},
    
49.   {OLED_CMD, 0xe0},
    
50.   {OLED_DATA, 0x70},
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51.   {OLED_DATA, 0x04},
    
52.   {OLED_DATA, 0x08},
    
53.   {OLED_DATA, 0x09},
    
54.   {OLED_DATA, 0x09},
    
55.   {OLED_DATA, 0x05},
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56.   {OLED_DATA, 0x2a},
    
57.   {OLED_DATA, 0x33},
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58.   {OLED_DATA, 0x41},
    
59.   {OLED_DATA, 0x07},
    
60.   {OLED_DATA, 0x13},
    
61.   {OLED_DATA, 0x13},
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62.   {OLED_DATA, 0x29},
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63.   {OLED_DATA, 0x2f},
    
64.   {OLED_CMD, 0xe1},
    
65.   {OLED_DATA, 0x70},
    
66.   {OLED_DATA, 0x03},
    
67.   {OLED_DATA, 0x09},
    
68.   {OLED_DATA, 0x0a},
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69.   {OLED_DATA, 0x09},
    
70.   {OLED_DATA, 0x06},
    
71.   {OLED_DATA, 0x2b},
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72.   {OLED_DATA, 0x34},
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73.   {OLED_DATA, 0x41},
    
74.   {OLED_DATA, 0x07},
    
75.   {OLED_DATA, 0x12},
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76.   {OLED_DATA, 0x14},
    
77.   {OLED_DATA, 0x28},
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78.   {OLED_DATA, 0x2e},
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79.   {OLED_CMD, 0x21},
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80.   {OLED_CMD, 0x29},
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81.   {OLED_CMD, 0x2a},
    
82.   {OLED_DATA, 0x00},
    
83.   {OLED_DATA, 0x00},
    
84.   {OLED_DATA, 0x00},
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85.   {OLED_DATA, 0xef},
    
86.   {OLED_CMD, 0x2b},
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87.   {OLED_DATA, 0x00},
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88.   {OLED_DATA, 0x00},
    
89.   {OLED_DATA, 0x00},
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90.   {OLED_DATA, 0xef},
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91.   {OLED_CMD, 0x2c},
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92.   {OLED_END, OLED_END},
    
93. };
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94. 
    
95. static void OLED_run_cfg_script()
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96. {
    
97.           uint8_t data[2] = {0};
    
98.           int i = 0;
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99.           int end_script = 0;
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100. 
     
101.           do {
     
102.             switch (OLED_cfg_script[i].cmd) {
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103.             case OLED_START:
     
104.               break;
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105.             case OLED_CMD:
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106.               data[0] = OLED_cfg_script[i].data & 0xff;
     
107.               LcdWriteReg(data[0]);
     
108.               break;
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109.             case OLED_DATA:
     
110.               data[0] = OLED_cfg_script[i].data & 0xff;
     
111.               LcdWriteData(data[0]);
     
112.               break;
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113.             case OLED_DELAY:
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114.               HAL_Delay(OLED_cfg_script[i].data);
     
115.               break;
     
116.             case OLED_END:
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117.               end_script = 1;
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118.             }
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119.             i++;
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120.           } while (!end_script);
     
121. }

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; r4 h. i* T! y# h  q' |& s( C        4）oled初始化
( R) ]: `8 H. O, V* [, x+ X3 l        进行oled屏的初始化函数设计
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1. //olde屏重置
   
2. static void OLED_reset()
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3. {
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4.           OLED_RST_State(0);
   
5.           HAL_Delay(200);
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6.           OLED_RST_State(1);
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7.           HAL_Delay(150);
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8. }
   
9. //oled屏初始化
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10. int OLED_init()
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11. {
    
12.           LCD_PWR_State(0);//回显关闭
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13.           OLED_reset();    //屏重置
    
14.           OLED_run_cfg_script();//初始化指令集依次执行脚本函数
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15.           LCD_PWR_State(1);//回显开启
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16.           OLED_display_picture();//条形码屏幕显示测试
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17. 
    
18.           return HAL_OK;
    
19. }

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        5）oled屏幕的亮屏（条形码显示）代码

1. #define LCD_MAX_MEM16_BLOCK             (1 << 6)
   
2. #define LCD_PIXEL_PER_BLOCK             (LCD_MAX_MEM16_BLOCK >> 1)
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3. 
   
4. static void spec_send_fb(uint16_t color, uint16_t pixel_num)
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5. {
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6.           uint16_t real_mem[LCD_MAX_MEM16_BLOCK] = {0};
   
7. 
   
8.           for (uint16_t i = 0; i < LCD_MAX_MEM16_BLOCK; ++i) {
   
9.                   real_mem[i] = color;
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10.           }
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11.           Data_Cmd_State(GPIO_PIN_SET);
    
12.           if (pixel_num <= LCD_MAX_MEM16_BLOCK) {
    
13.                   LcdWriteDataMultiple((uint8_t*)real_mem, pixel_num << 1);
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14.           } else {
    
15.                   uint16_t count = pixel_num / LCD_MAX_MEM16_BLOCK;
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16.                   uint16_t remain = pixel_num % LCD_MAX_MEM16_BLOCK;
    
17.                   for (uint16_t i = 0; i < count; ++i) {
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18.                           LcdWriteDataMultiple((uint8_t*)real_mem, LCD_MAX_MEM16_BLOCK << 1);
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19.                   }
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20.                   LcdWriteDataMultiple((uint8_t*)real_mem, remain << 1);
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21.           }
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22. }
    
23. 
    
24. static void OLED_display_picture(void)
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25. {
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26.   LcdWriteReg(OLED_RAMWR);
    
27.   spec_send_fb(0x0, WIDTH * HEIGHT / 4);
    
28.   spec_send_fb(0x1111, WIDTH * HEIGHT / 4);
    
29.   spec_send_fb(0x7777, WIDTH * HEIGHT / 4);
    
30.   spec_send_fb(0xeeee, WIDTH * HEIGHT / 4);
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31. }

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( @3 Q5 x# k1 b9 X& n
      6）驱动调用
        基本功能完成后，在main.c文件实现函数调用

1.   /* USER CODE BEGIN Includes */
   
2. #include "../../ICore/key/key.h"
   
3. #include "../../ICore/led/led.h"
   
4. #include "../../ICore/print/print.h"
   
5. #include "../../ICore/usart/usart.h"
   
6. #include "../../ICore/oled/oled.h"
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7. /* USER CODE END Includes */
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8. ..............................................
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9.     /* USER CODE BEGIN 2 */
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10.   ResetPrintInit(&hlpuart1);
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11.   HAL_UART_Receive_IT(&hlpuart1,(uint8_t *)&HLPUSART_NewData, 1); //再开启接收中断
    % [& q3 L; t. ^. X0 i6 m
12.   HLPUSART_RX_STA = 0;
    
13.   OLED_init();
    
14. 
    
15.   set_led0_val(0);
    
16.   set_led1_val(get_key0_val());
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17.   /* USER CODE END 2 */
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18.   /* USER CODE BEGIN WHILE */
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19.   while (1)
    
20.   {
    
21.     Toggle_led0();
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22.     /* USER CODE END WHILE */

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8 p: z$ H4 J% ?! [2 a/ J        7）编译加载到开发板上
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         8）屏幕效果点亮如下：

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五、屏幕输出字符串设计
        【1】字符串编码表
        在ICore/oled目下字符串编码表ASCII.h，具体如下：

1. /*
   6 ]; Q4 ~* y3 p; k- P( K( H$ U- a
2. * ASCII.h
   7 y2 }4 O: f' A/ [- ?; B, Q
3. *
     t7 w+ V  D5 p. J
4. *  Created on: Jun 11, 2022
   
5. *      Author: Administrator
   
6. */
   0 K  N! J: C; v4 ^. Y: s, E9 O
7. 
   0 ~* Q6 h* g8 }: k% z
8. #ifndef OLED_ASCII_H_
   
9. #define OLED_ASCII_H_
   ) z' b8 H, w9 u5 \
10. 
    / d6 M" m6 f5 d3 C6 \
11. // ------------------  ASCII字模的数据表 ------------------------ //
    
12. // 码表从0x20~0x7e                                                //
    5 C3 H& Z4 }& O" Z- \
13. // 字库:  纵向取模下高位// （调用时要减512）
    
14. // -------------------------------------------------------------- //
    * ]0 ~. I; X* J$ }1 `: j! u; D0 A0 w
15. const uint8_t ASCII_8x16[] =  {            // ASCII
    9 r9 _# ^$ W7 y2 N
16.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  // - -
    9 \4 V2 Z" {, @5 @0 R
17.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    * I2 X0 F2 t, U
18. 
    
19.         0x00,0x00,0x38,0xFC,0xFC,0x38,0x00,0x00,  // -!-
    
20.         0x00,0x00,0x00,0x0D,0x0D,0x00,0x00,0x00,
    . a5 O( K, q: v' `# W7 J! z6 ]- Y$ P
21. 
    
22.         0x00,0x0E,0x1E,0x00,0x00,0x1E,0x0E,0x00,  // -"-
    ) {. M$ Q- f- e6 j
23.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      c, B/ J: z) {* |8 @
24. 
    2 c  s, k$ l/ ^0 d; F; C- y& p' c
25.         0x20,0xF8,0xF8,0x20,0xF8,0xF8,0x20,0x00,  // -#-
    0 B0 Q, d+ p* r, Q$ S9 Q1 q
26.         0x02,0x0F,0x0F,0x02,0x0F,0x0F,0x02,0x00,
    
27. 
    " L/ G% A; X& c7 r
28.         0x38,0x7C,0x44,0x47,0x47,0xCC,0x98,0x00,  // -$-
    
29.         0x03,0x06,0x04,0x1C,0x1C,0x07,0x03,0x00,
    / ]! ], ?% o/ A: D) p
30. 
    
31.         0x30,0x30,0x00,0x80,0xC0,0x60,0x30,0x00,  // -%-
    0 A) q. l3 c; Z; B) E; |
32.         0x0C,0x06,0x03,0x01,0x00,0x0C,0x0C,0x00,
    1 k7 e- m6 s- n$ J( H
33. 
    
34.         0x80,0xD8,0x7C,0xE4,0xBC,0xD8,0x40,0x00,  // -&-
    * e8 [; R7 ]9 ~# Q: w. _
35.         0x07,0x0F,0x08,0x08,0x07,0x0F,0x08,0x00,
    
36. 
    
37.         0x00,0x10,0x1E,0x0E,0x00,0x00,0x00,0x00,  // -'-
    
38.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    
39. 
    
40.         0x00,0x00,0xF0,0xF8,0x0C,0x04,0x00,0x00,  // -(-
    
41.         0x00,0x00,0x03,0x07,0x0C,0x08,0x00,0x00,
    % \1 `6 o% i+ B4 u$ m8 ]! n) {
42. 
    
43.         0x00,0x00,0x04,0x0C,0xF8,0xF0,0x00,0x00,  // -)-
    
44.         0x00,0x00,0x08,0x0C,0x07,0x03,0x00,0x00,
    * o* H! g4 y+ R' V4 w! `) z
45. 
    5 \" O. \) C, _' m
46.         0x80,0xA0,0xE0,0xC0,0xC0,0xE0,0xA0,0x80,  // -*-
    , ]6 q4 D% ^/ O$ a% c* ]4 M
47.         0x00,0x02,0x03,0x01,0x01,0x03,0x02,0x00,
    2 z1 h; ]3 f1 t# Z, K2 W) G
48. 
    
49.         0x00,0x80,0x80,0xE0,0xE0,0x80,0x80,0x00,  // -+-
    
50.         0x00,0x00,0x00,0x03,0x03,0x00,0x00,0x00,
    
51. 
    
52.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  // -,-
    
53.         0x00,0x00,0x10,0x1E,0x0E,0x00,0x00,0x00,
    , n  L! l: B  M) W) S# |% ]
54. 
    ( X6 J4 f. T& b$ a8 h3 p; B
55.         0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,  // ---
    
56.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    
57. 
    " {* b- K! H& m! H/ B; ~, }
58.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  // -.-
    ; K5 e! Q5 G/ Y9 j
59.         0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00,
    
60. 
    
61.         0x00,0x00,0x00,0x80,0xC0,0x60,0x30,0x00,  // -/-
    
62.         0x0C,0x06,0x03,0x01,0x00,0x00,0x00,0x00,
    
63. 
    3 u6 x7 \! R) @
64.         0xF8,0xFC,0x04,0xC4,0x24,0xFC,0xF8,0x00,  // -0-
    / k  K7 `( K) T$ }2 M1 W
65.         0x07,0x0F,0x09,0x08,0x08,0x0F,0x07,0x00,
    % V- A( ~, M  Z' m
66. 
    
67.         0x00,0x10,0x18,0xFC,0xFC,0x00,0x00,0x00,  // -1-
    . f( {9 x2 U/ z, e
68.         0x00,0x08,0x08,0x0F,0x0F,0x08,0x08,0x00,
    
69. 
    
70.         0x08,0x0C,0x84,0xC4,0x64,0x3C,0x18,0x00,  // -2-
    
71.         0x0E,0x0F,0x09,0x08,0x08,0x0C,0x0C,0x00,
    
72. 
    ( B+ ^4 G5 l( b$ Y6 m6 H
73.         0x08,0x0C,0x44,0x44,0x44,0xFC,0xB8,0x00,  // -3-
    . I0 H3 {4 B7 p/ p/ ?
74.         0x04,0x0C,0x08,0x08,0x08,0x0F,0x07,0x00,
    # z3 E0 }( ^- b
75. 
    ) e% A: R! G& l- V  l7 f. A
76.         0xC0,0xE0,0xB0,0x98,0xFC,0xFC,0x80,0x00,  // -4-
    ! P. N' a# c1 N3 ^4 r
77.         0x00,0x00,0x00,0x08,0x0F,0x0F,0x08,0x00,
    1 X& p0 C3 ?! t" h3 V+ I4 s% k
78. 
    # o8 I* ], ?2 A4 F7 }
79.         0x7C,0x7C,0x44,0x44,0xC4,0xC4,0x84,0x00,  // -5-
    
80.         0x04,0x0C,0x08,0x08,0x08,0x0F,0x07,0x00,
    
81. 
    
82.         0xF0,0xF8,0x4C,0x44,0x44,0xC0,0x80,0x00,  // -6-
    5 u( x& x6 r/ F* F1 X9 M
83.         0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00,
    , ~' t8 C5 K. {1 c4 b& {+ d
84. 
    9 T. k# J: y  `) X5 J! s  o" c
85.         0x0C,0x0C,0x04,0x84,0xC4,0x7C,0x3C,0x00,  // -7-
    ; u, U' o& d' i- s% u, r. d
86.         0x00,0x00,0x0F,0x0F,0x00,0x00,0x00,0x00,
    9 R& x4 p# ^) }1 @1 m. R
87. 
    
88.         0xB8,0xFC,0x44,0x44,0x44,0xFC,0xB8,0x00,  // -8-
    ( ~/ u, s/ V) P" o% `/ M6 X
89.         0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00,
    
90. 
    
91.         0x38,0x7C,0x44,0x44,0x44,0xFC,0xF8,0x00,  // -9-
    $ G" I+ E) Z# x7 q/ d, e4 l
92.         0x00,0x08,0x08,0x08,0x0C,0x07,0x03,0x00,
    & B0 Z8 Q4 o2 s/ \) `. e
93. 
    % K; R; U5 `  s9 _9 ~' D
94.         0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,  // -:-
    1 {* Y; t7 S0 ^' u$ h9 Q7 _
95.         0x00,0x00,0x00,0x06,0x06,0x00,0x00,0x00,
    % ^8 ]! c0 |: ~  m9 Y# G: w# n' O  b: a
96. 
    - [; o) c; b) A$ A, t4 e
97.         0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,  // -;-
    
98.         0x00,0x00,0x08,0x0E,0x06,0x00,0x00,0x00,
    
99. 
    8 {9 q5 {; r" P8 }/ k& H
100.         0x00,0x80,0xC0,0x60,0x30,0x18,0x08,0x00,  // -<-
     . K5 U8 f, T. }7 F! B/ K4 E$ W
101.         0x00,0x00,0x01,0x03,0x06,0x0C,0x08,0x00,
     # t$ ]7 Y  q2 T6 W1 ~' u' r6 n
102. 
     5 g" d4 O+ u6 v  A1 P. T, g0 L
103.         0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,  // -=-
     * }* N! A* @6 c4 Q3 Z  L
104.         0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,
     2 h) z6 m4 F) C. t. ?3 U
105. 
     
106.         0x00,0x08,0x18,0x30,0x60,0xC0,0x80,0x00,  // ->-
     
107.         0x00,0x08,0x0C,0x06,0x03,0x01,0x00,0x00,
     
108. 
     
109.         0x18,0x1C,0x04,0xC4,0xE4,0x3C,0x18,0x00,  // -?-
     
110.         0x00,0x00,0x00,0x0D,0x0D,0x00,0x00,0x00,
     
111. 
     
112.         0xF0,0xF8,0x08,0xC8,0xC8,0xF8,0xF0,0x00,  // -@-
     
113.         0x07,0x0F,0x08,0x0B,0x0B,0x0B,0x01,0x00,
     6 d) K& O' f5 {* R. q* _
114. 
     
115.         0xE0,0xF0,0x98,0x8C,0x98,0xF0,0xE0,0x00,  // -A-
     : N  v. w# W% ~2 t% D6 y
116.         0x0F,0x0F,0x00,0x00,0x00,0x0F,0x0F,0x00,
     2 G1 {9 i: g6 z" u: G& }' g7 e8 J
117. 
       S1 h- b! @5 e1 N2 c. Z
118.         0x04,0xFC,0xFC,0x44,0x44,0xFC,0xB8,0x00,  // -B-
     ' s9 I5 d0 s% t* t/ a7 v
119.         0x08,0x0F,0x0F,0x08,0x08,0x0F,0x07,0x00,
     
120. 
     ! ?) k& b. L) v( l
121.         0xF0,0xF8,0x0C,0x04,0x04,0x0C,0x18,0x00,  // -C-
     * g9 d$ g5 y2 Z3 f' R5 X' j
122.         0x03,0x07,0x0C,0x08,0x08,0x0C,0x06,0x00,
     0 \' \/ Z  f! X5 }  o+ Z( c
123. 
     
124.         0x04,0xFC,0xFC,0x04,0x0C,0xF8,0xF0,0x00,  // -D-
     + y% R. I4 [! ]- }
125.         0x08,0x0F,0x0F,0x08,0x0C,0x07,0x03,0x00,
     
126. 
     / K, F. T, Q2 w9 ]0 |$ ?4 Q! r% f" t
127.         0x04,0xFC,0xFC,0x44,0xE4,0x0C,0x1C,0x00,  // -E-
     , M# x# d& J: |/ |
128.         0x08,0x0F,0x0F,0x08,0x08,0x0C,0x0E,0x00,
     ' n, N6 \* l7 \+ [
129. 
     ' K9 I: }2 w$ p" L( y# g* f3 `
130.         0x04,0xFC,0xFC,0x44,0xE4,0x0C,0x1C,0x00,  // -F-
     
131.         0x08,0x0F,0x0F,0x08,0x00,0x00,0x00,0x00,
     
132. 
     
133.         0xF0,0xF8,0x0C,0x84,0x84,0x8C,0x98,0x00,  // -G-
     
134.         0x03,0x07,0x0C,0x08,0x08,0x07,0x0F,0x00,
     
135. 
     ; ]* F+ f. b" l
136.         0xFC,0xFC,0x40,0x40,0x40,0xFC,0xFC,0x00,  // -H-
     0 V" h8 z' Y' C7 T4 B9 ^: x0 q
137.         0x0F,0x0F,0x00,0x00,0x00,0x0F,0x0F,0x00,
     " f# P1 s$ S8 O: G, f
138. 
     
139.         0x00,0x00,0x04,0xFC,0xFC,0x04,0x00,0x00,  // -I-
     7 l1 W" x- K7 L8 j0 d2 r
140.         0x00,0x00,0x08,0x0F,0x0F,0x08,0x00,0x00,
     
141. 
     
142.         0x00,0x00,0x00,0x04,0xFC,0xFC,0x04,0x00,  // -J-
     
143.         0x07,0x0F,0x08,0x08,0x0F,0x07,0x00,0x00,
       m7 I( E0 x% U) x2 c2 m
144. 
     
145.         0x04,0xFC,0xFC,0xC0,0xF0,0x3C,0x0C,0x00,  // -K-
     
146.         0x08,0x0F,0x0F,0x00,0x01,0x0F,0x0E,0x00,
     
147. 
     
148.         0x04,0xFC,0xFC,0x04,0x00,0x00,0x00,0x00,  // -L-
     
149.         0x08,0x0F,0x0F,0x08,0x08,0x0C,0x0E,0x00,
     
150. 
     * V5 _( l; q# }3 _, X$ Z
151.         0xFC,0xFC,0x38,0x70,0x38,0xFC,0xFC,0x00,  // -M-
     : G3 t1 O* k2 G2 F% _5 B7 K
152.         0x0F,0x0F,0x00,0x00,0x00,0x0F,0x0F,0x00,
     
153. 
     ; g* q! k# Q; s0 R) G+ G3 F3 _0 W5 g
154.         0xFC,0xFC,0x38,0x70,0xE0,0xFC,0xFC,0x00,  // -N-
     
155.         0x0F,0x0F,0x00,0x00,0x00,0x0F,0x0F,0x00,
     
156. 
       h, u2 n5 Q6 L4 I" F; o: I
157.         0xF0,0xF8,0x0C,0x04,0x0C,0xF8,0xF0,0x00,  // -O-
     + v# \9 ~+ t  q3 ?8 H
158.         0x03,0x07,0x0C,0x08,0x0C,0x07,0x03,0x00,
     & I/ b2 k9 O. S& W7 _
159. 
     
160.         0x04,0xFC,0xFC,0x44,0x44,0x7C,0x38,0x00,  // -P-
     6 h% ^5 R1 `( ?2 V9 f1 N9 u( F
161.         0x08,0x0F,0x0F,0x08,0x00,0x00,0x00,0x00,
     2 u( J, `4 ?/ e' j) B  L
162. 
     2 {1 }% H) t: e$ j/ l* y
163.         0xF8,0xFC,0x04,0x04,0x04,0xFC,0xF8,0x00,  // -Q-
     
164.         0x07,0x0F,0x08,0x0E,0x3C,0x3F,0x27,0x00,
     
165. 
     4 y5 O* ~4 U" V$ ]+ N% S$ S
166.         0x04,0xFC,0xFC,0x44,0xC4,0xFC,0x38,0x00,  // -R-
     
167.         0x08,0x0F,0x0F,0x00,0x00,0x0F,0x0F,0x00,
     
168. 
     ) K& U( u: y$ B' }) {
169.         0x18,0x3C,0x64,0x44,0xC4,0x9C,0x18,0x00,  // -S-
     + u% ]( Z% G0 j; [& h7 z. n
170.         0x06,0x0E,0x08,0x08,0x08,0x0F,0x07,0x00,
     % G3 b1 U8 Y' v
171. 
     
172.         0x00,0x1C,0x0C,0xFC,0xFC,0x0C,0x1C,0x00,  // -T-
     
173.         0x00,0x00,0x08,0x0F,0x0F,0x08,0x00,0x00,
     % Q' o' l! j5 O" F* ^* @8 l! U
174. 
     
175.         0xFC,0xFC,0x00,0x00,0x00,0xFC,0xFC,0x00,  // -U-
     6 f, N* o) b! ^
176.         0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00,
     
177. 
     
178.         0xFC,0xFC,0x00,0x00,0x00,0xFC,0xFC,0x00,  // -V-
     
179.         0x01,0x03,0x06,0x0C,0x06,0x03,0x01,0x00,
     5 _% @$ D( a3 w. k, m) [% g
180. 
     
181.         0xFC,0xFC,0x00,0x80,0x00,0xFC,0xFC,0x00,  // -W-
     
182.         0x03,0x0F,0x0E,0x03,0x0E,0x0F,0x03,0x00,
     
183. 
     
184.         0x0C,0x3C,0xF0,0xC0,0xF0,0x3C,0x0C,0x00,  // -X-
     ( P7 X0 S/ W6 c3 U+ K0 T% p
185.         0x0C,0x0F,0x03,0x00,0x03,0x0F,0x0C,0x00,
     
186. 
     $ I. }# |1 A! u  F0 T! E5 s
187.         0x00,0x3C,0x7C,0xC0,0xC0,0x7C,0x3C,0x00,  // -Y-
     . P8 L4 \% k& O
188.         0x00,0x00,0x08,0x0F,0x0F,0x08,0x00,0x00,
     - U8 P" |; t. O3 c. n; `6 _
189. 
     + E8 I/ V% k1 I' X
190.         0x1C,0x0C,0x84,0xC4,0x64,0x3C,0x1C,0x00,  // -Z-
     
191.         0x0E,0x0F,0x09,0x08,0x08,0x0C,0x0E,0x00,
       X2 a1 z6 j2 n" h- C
192. 
     ; A6 B/ K. u9 K5 C
193.         0x00,0x00,0xFC,0xFC,0x04,0x04,0x00,0x00,  // -[-
     5 k7 Q8 y" `% {0 `! n1 n
194.         0x00,0x00,0x0F,0x0F,0x08,0x08,0x00,0x00,
     
195. 
     ( @2 i) a, o2 T2 P, M, ?5 h
196.         0x38,0x70,0xE0,0xC0,0x80,0x00,0x00,0x00,  // -\-
     
197.         0x00,0x00,0x00,0x01,0x03,0x07,0x0E,0x00,
     
198. 
     
199.         0x00,0x00,0x04,0x04,0xFC,0xFC,0x00,0x00,  // -]-
     
200.         0x00,0x00,0x08,0x08,0x0F,0x0F,0x00,0x00,
       }2 z+ Z7 t9 I
201. 
     7 h2 ~1 V  S+ y
202.         0x08,0x0C,0x06,0x03,0x06,0x0C,0x08,0x00,  // -^-
     
203.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
     , {5 r, n9 X% e$ e6 o' f
204. 
     
205.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  // -_-
     * D1 |$ }1 i. D
206.         0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
     + N9 Q) x7 d% H; l
207. 
     6 u' u" m. b0 `. b' @6 m
208.         0x00,0x00,0x03,0x07,0x04,0x00,0x00,0x00,  // -`-
     6 w" m1 m, P, @. Z. c9 l, @
209.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
     7 g: W+ w$ v7 \2 A* ~
210. 
     * K. w$ o! T" _1 }% C* z
211.         0x00,0xA0,0xA0,0xA0,0xE0,0xC0,0x00,0x00,  // -a-
     
212.         0x07,0x0F,0x08,0x08,0x07,0x0F,0x08,0x00,
     
213. 
     " ?$ T1 a* s0 u5 g
214.         0x04,0xFC,0xFC,0x20,0x60,0xC0,0x80,0x00,  // -b-
     
215.         0x08,0x0F,0x07,0x08,0x08,0x0F,0x07,0x00,
     ( I! v9 Q$ r7 o5 B7 d! d
216. 
     ' [: z1 K6 R6 V5 e
217.         0xC0,0xE0,0x20,0x20,0x20,0x60,0x40,0x00,  // -c-
     
218.         0x07,0x0F,0x08,0x08,0x08,0x0C,0x04,0x00,
     2 B" m$ c# j" z5 G3 T
219. 
     : ~0 I" n7 V3 {! J' v+ n1 m: B' x# `
220.         0x80,0xC0,0x60,0x24,0xFC,0xFC,0x00,0x00,  // -d-
     5 A0 {( i+ f  L" `4 V
221.         0x07,0x0F,0x08,0x08,0x07,0x0F,0x08,0x00,
     4 ~# q8 z, L" L$ L! `
222. 
     6 ^- d' ~% f, }5 I9 T
223.         0xC0,0xE0,0xA0,0xA0,0xA0,0xE0,0xC0,0x00,  // -e-
     
224.         0x07,0x0F,0x08,0x08,0x08,0x0C,0x04,0x00,
     , v4 h& n' V8 Z# t
225. 
     3 d; C% N$ D' g) [1 }1 B
226.         0x40,0xF8,0xFC,0x44,0x0C,0x18,0x00,0x00,  // -f-
     # \+ ^; J5 Y- N3 g) o) N' R
227.         0x08,0x0F,0x0F,0x08,0x00,0x00,0x00,0x00,
     : L! \7 T0 b% R& U7 }
228. 
     
229.         0xC0,0xE0,0x20,0x20,0xC0,0xE0,0x20,0x00,  // -g-
     ; {6 X4 H8 ?/ m1 Q$ L, W9 @
230.         0x27,0x6F,0x48,0x48,0x7F,0x3F,0x00,0x00,
     ! k7 F7 o' q: p& Y, t2 D4 q
231. 
     
232.         0x04,0xFC,0xFC,0x40,0x20,0xE0,0xC0,0x00,  // -h-
     
233.         0x08,0x0F,0x0F,0x00,0x00,0x0F,0x0F,0x00,
     
234. 
     
235.         0x00,0x00,0x20,0xEC,0xEC,0x00,0x00,0x00,  // -i-
     8 ?: t6 P9 K7 ?, q
236.         0x00,0x00,0x08,0x0F,0x0F,0x08,0x00,0x00,
     5 v! V1 j+ O3 |
237. 
     
238.         0x00,0x00,0x00,0x00,0x20,0xEC,0xEC,0x00,  // -j-
     . r/ v: x, x3 ~1 @
239.         0x00,0x30,0x70,0x40,0x40,0x7F,0x3F,0x00,
     # }- Y% s% d$ V9 I5 `
240. 
     
241.         0x04,0xFC,0xFC,0x80,0xC0,0x60,0x20,0x00,  // -k-
     
242.         0x08,0x0F,0x0F,0x01,0x03,0x0E,0x0C,0x00,
     
243. 
     " l; ~* Y  j+ Z: Y  M
244.         0x00,0x00,0x04,0xFC,0xFC,0x00,0x00,0x00,  // -l-
     ) Y2 J3 J8 `* i* p/ u) e" C: J6 W
245.         0x00,0x00,0x08,0x0F,0x0F,0x08,0x00,0x00,
     2 f1 d4 D3 u# W4 X
246. 
     / Q7 q% ?+ c) k  V1 i+ }, Y" e
247.         0xE0,0xE0,0x60,0xC0,0x60,0xE0,0xC0,0x00,  // -m-
     ; |& _- r2 `. w0 i
248.         0x0F,0x0F,0x00,0x0F,0x00,0x0F,0x0F,0x00,
     ! V  T( {6 }' t5 \. V
249. 
     
250.         0x20,0xE0,0xC0,0x20,0x20,0xE0,0xC0,0x00,  // -n-
     
251.         0x00,0x0F,0x0F,0x00,0x00,0x0F,0x0F,0x00,
     6 O/ C+ a" v; }* `3 x# R
252. 
     ! Q' _. O4 d- a% k2 V" t
253.         0xC0,0xE0,0x20,0x20,0x20,0xE0,0xC0,0x00,  // -o-
     : b1 i: K- O! s
254.         0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00,
     
255. 
     2 R4 R2 D! y0 H$ i( ^3 j
256.         0x20,0xE0,0xC0,0x20,0x20,0xE0,0xC0,0x00,  // -p-
     9 Q8 B  D4 y) u/ r- m, I
257.         0x40,0x7F,0x7F,0x48,0x08,0x0F,0x07,0x00,
     
258. 
       w/ E: s' U! k: B* j1 z
259.         0xC0,0xE0,0x20,0x20,0xC0,0xE0,0x20,0x00,  // -q-
     + C3 O) ^$ L( a" |2 f* k: F' U
260.         0x07,0x0F,0x08,0x48,0x7F,0x7F,0x40,0x00,
     % F7 Y' m8 ^6 H8 A
261. 
     ! K% n* s8 [# ]1 R) L6 K, q* P. U5 D
262.         0x20,0xE0,0xC0,0x60,0x20,0x60,0xC0,0x00,  // -r-
     * P5 U3 `* l: I$ p- {, P. P, \
263.         0x08,0x0F,0x0F,0x08,0x00,0x00,0x00,0x00,
     - I9 g, E9 V# I
264. 
     
265.         0x40,0xE0,0xA0,0x20,0x20,0x60,0x40,0x00,  // -s-
     2 H5 y& D$ m$ E- e7 ?- a5 }
266.         0x04,0x0C,0x09,0x09,0x0B,0x0E,0x04,0x00,
     
267. 
     1 l6 n& U# l$ \5 V8 |
268.         0x20,0x20,0xF8,0xFC,0x20,0x20,0x00,0x00,  // -t-
     # J- j7 h% F* B+ m
269.         0x00,0x00,0x07,0x0F,0x08,0x0C,0x04,0x00,
     ! b7 Y: ]! M0 _
270. 
     
271.         0xE0,0xE0,0x00,0x00,0xE0,0xE0,0x00,0x00,  // -u-
     ' }. g5 C. [! G3 E9 ^
272.         0x07,0x0F,0x08,0x08,0x07,0x0F,0x08,0x00,
     * Q, g2 H, ]/ k5 |6 H$ G
273. 
     1 q5 o& i' c" L" \5 V3 m* r6 y. i/ J
274.         0x00,0xE0,0xE0,0x00,0x00,0xE0,0xE0,0x00,  // -v-
     
275.         0x00,0x03,0x07,0x0C,0x0C,0x07,0x03,0x00,
       [) B# p) {6 l
276. 
     7 f, `! X! S0 y$ \7 m6 f
277.         0xE0,0xE0,0x00,0x00,0x00,0xE0,0xE0,0x00,  // -w-
     
278.         0x07,0x0F,0x0C,0x07,0x0C,0x0F,0x07,0x00,
     4 b+ m  ~: v( c& W
279. 
     
280.         0x20,0x60,0xC0,0x80,0xC0,0x60,0x20,0x00,  // -x-
     / s8 Y+ w* V* S$ c
281.         0x08,0x0C,0x07,0x03,0x07,0x0C,0x08,0x00,
     
282. 
     
283.         0xE0,0xE0,0x00,0x00,0x00,0xE0,0xE0,0x00,  // -y-
     9 p$ s6 ?+ F5 r. [5 P/ o) d
284.         0x47,0x4F,0x48,0x48,0x68,0x3F,0x1F,0x00,
     0 I- f9 N+ a3 B# {5 n4 b; H. n
285. 
     3 A' ?% l2 E  u5 [& Z' W
286.         0x60,0x60,0x20,0xA0,0xE0,0x60,0x20,0x00,  // -z-
     $ S/ ~; U; z, D: ~- `/ x& [4 R' \6 X+ n
287.         0x0C,0x0E,0x0B,0x09,0x08,0x0C,0x0C,0x00,
     
288. 
     
289.         0x00,0x40,0x40,0xF8,0xBC,0x04,0x04,0x00,  // -{-
     
290.         0x00,0x00,0x00,0x07,0x0F,0x08,0x08,0x00,
     ; [- X! P1 }& ?6 A1 q
291. 
     
292.         0x00,0x00,0x00,0xBC,0xBC,0x00,0x00,0x00,  // -|-
     % F4 e  q, {% o+ t$ k; H9 F1 T
293.         0x00,0x00,0x00,0x0F,0x0F,0x00,0x00,0x00,
     5 ?* Z* Q- `/ @' u# a
294. 
     
295.         0x00,0x04,0x04,0xBC,0xF8,0x40,0x40,0x00,  // -}-
     
296.         0x00,0x08,0x08,0x0F,0x07,0x00,0x00,0x00,
     
297. 
     . J( l% K/ \% y# D2 S
298.         0x08,0x0C,0x04,0x0C,0x08,0x0C,0x04,0x00,  // -~-
     8 R! O  K2 o6 i. E
299.         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
     
300. 
     
301.         0x80,0xC0,0x60,0x30,0x60,0xC0,0x80,0x00,  // --
       G+ Y5 @! z( W) `& f* i0 ?0 F  d4 C
302.         0x07,0x07,0x04,0x04,0x04,0x07,0x07,0x00,
     
303. };
     
304. 
     ' L& @3 N1 R+ w+ j( @( i  [& h
305. #endif /* OLED_ASCII_H_ */

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9 ?* O* c+ R* y+ ~1 n6 x" y【2】将创建屏幕打印函数，输出显示字符串能力
  x  F, P. q& M9 }$ Z        （1）首选了解ASCII_8x16字库表如何使用的，例如我们取"!"为例：

1. ！16个8bit的字段的二进制表示如下
   * e& Z# k2 |0 V8 n# L& `
2. 0X00     0 0 0 0 0 0 0 0
   - z! r5 p. G; S! R; q( O
3. 0X00     0 0 0 0 0 0 0 0
   4 G  Q& K' e! j
4. 0X38     0 0 1 1 1 0 0 0
   
5. 0XFC     1 1 1 1 1 1 0 0
   
6. 0XFC     1 1 1 1 1 1 0 0
     z7 S4 p/ G% m" V7 T& R. S
7. 0X38     0 0 1 1 1 0 0 0
   
8. 0X00     0 0 0 0 0 0 0 0
   . G; w5 g# q+ k) p; v
9. 0X00     0 0 0 0 0 0 0 0
   , y7 L8 g- I1 ^( U6 {8 ^: Y9 s
10. 
    
11. 0X00     0 0 0 0 0 0 0 0
    
12. 0X00     0 0 0 0 0 0 0 0
    
13. 0X00     0 0 0 0 0 0 0 0
    0 n4 t( n. G2 q5 m  e) x/ q) Z
14. 0X0D     0 0 0 0 1 1 0 1
    
15. 0X0D     0 0 0 0 1 1 0 1
    % ]: g5 @# ^- a& }
16. 0X00     0 0 0 0 0 0 0 0
    
17. 0X00     0 0 0 0 0 0 0 0
    
18. 0X00     0 0 0 0 0 0 0 0

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! ?$ F# i4 S% U$ I& x3 n$ D        （2）将划分为前8*8和后8*8的的二进制矩阵，将8*8矩阵做逆时针（90度）翻转，将翻转后矩阵进行紧凑（去掉空格），这些“1”组成了一个大的“！”字符如下：
, `5 `) Q5 ~5 r- l4 X6 @0 K

1. //将8*8二进制矩阵翻转
   3 x! V% u, Z* q9 ?9 u4 G
2. 0X000X000X380XFC0XFC0X380X000X00
   0 ^* _) O  m" a! ~( z0 Y
3. 0        0        0        0        0        0        0        0
   
4. 0        0        0        0        0        0        0        0
   
5. 0        0        0        1        1        0        0        0
   5 V0 j, o3 \# B( Y- H; a
6. 0        0        1        1        1        1        0        0
   ( K! e6 g; k+ G2 Q' V& ?& J
7. 0        0        1        1        1        1        0        0
   
8. 0        0        1        1        1        1        0        0
   ) B+ F9 W+ g: M, P. n2 ]  A
9. 0        0        0        1        1        0        0        0
   
10. 0        0        0        1        1        0        0        0
    + q# Z1 F0 L' a4 j: h4 d5 B: B  j
11. 0X000X000X000X0D0X0D0X000X000X00
    + D0 _5 x8 u" o7 A( I, y+ @
12. 0        0        0        1        1        0        0        0
    ' g2 W, D; b! d
13. 0        0        0        0        0        0        0        0
    # ]5 c) p4 S3 E
14. 0        0        0        1        1        0        0        0
    
15. 0        0        0        1        1        0        0        0
    ( p' E/ i, d/ i8 o7 {( G
16. 0        0        0        0        0        0        0        0
    " U8 h# `0 m) v
17. 0        0        0        0        0        0        0        0
    
18. 0        0        0        0        0        0        0        0
    
19. 0        0        0        0        0        0        0        0
    
20. 
    
21. 将上述矩阵进行紧凑（去掉空格），这些“1”组成了一个大的“！”字符
    : w( k, E( M; k/ y
22. 00000000
    
23. 00000000
    
24. 00011000
    ; [* c4 N! H) c3 Y5 [
25. 00111100
    2 c0 n. J% B( c: T9 x3 ~8 h1 C0 q" W
26. 00111100
    
27. 00111100
    
28. 00011000
    
29. 00011000
    5 K- R' O+ x. l+ R- |
30. 00011000
    
31. 00000000
    / q7 f3 i9 Y& m1 c' E: N6 ^
32. 00011000
    . I' r2 j. P, R  ~, Q  P
33. 00011000
    ; ?8 K; W7 g2 }- V/ b$ Z4 a4 j
34. 00000000
    + V2 M5 v; R1 m! r6 B- U
35. 00000000
      _# O& G/ E" t3 w7 i9 N! `* o
36. 00000000
    ; \, D/ i* ~9 e9 Z* U2 u
37. 00000000
    
38. //显然，在代码实现中，每个字符就是8*16像素的二进制矩阵，我们将“1”的绘制前景色，“0”的绘制背景色，就能显示字符

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        （3）显然，在代码实现中，每个字符就是8*16像素的二进制矩阵，我们将“1”的绘制前景色，“0”的绘制背景色，就能显示字符

        现在给出字符8*16二进制矩阵获取代码：

1. //addr为字符的地址信息
   / a" d8 z0 E0 `
2.         uint8_t buffer[16][8]={0};
   
3.         for(uint8_t i=0; i<16; i++)
   + c& U4 d; n1 @
4.         {
   9 r% N" ^4 L. A( ^4 L# G0 T. D
5.                 uint16_t buf=ASCII_8x16[(addr*16)+i-512];
   2 r" {4 ]- G$ T: V
6.                 printf("0X%02X ",buf);
   
7.                 for(uint8_t j=0;j<8;j++){
   
8.                         printf("%d ",(0x01&(buf>>j))>0?0x01:0x00);//注意这里低字节开始取值,与前面分析的就刚好反至了,但原理是一样的
   $ u$ S% F% b) ~5 ]/ A+ {
9.                         buffer[8*(i/8)+j][i%8]=(0x01&(buf>>j))>0?1:0;
   6 z2 W7 z" \1 h: O* R2 y4 z- ~2 w
10.                 }
    # j* |3 K5 K4 V# @$ n# R- l
11.                 printf("\r\n");
    
12.         }
    
13.         for(uint8_t i=0; i<16; i++)
    ; D; q2 I' }" W$ Q, i% H
14.         {
    
15.                 for(uint8_t j=0;j<8;j++){
    
16.                         printf("%d",buffer[i][j]);
    
17.                 }
    8 }( G/ S, k9 F" O( }
18.                 printf("\r\n");
    
19.         }

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        （4）测试“！”输出如下，妥妥的一个!，需要注意的是，下图第一部分的打印输出，由于我们打印时从低字节位开始取数，和前面分析（步骤（1）是从高位取数）的呈现出反至效果：

" [$ C5 G4 Z# f( e/ ?% e

+ ?* o9 z9 ~' ?: O- R/ ~  f 【3】字符串olde输出
' `$ [6 N6 ]) p9 c: q        知道一个字符如何在屏幕输出，那么一个字符串输出就是逐个8*16的像素格子渲染输出，具体代码设置如下，OLED_printf实现在屏幕指定位置开始，打印输出字符串，字符串如果过大，将更换到下一行（即y方向下移16像素，屏幕左上角位置为0,0，向右为X轴方向递增，向下位Y轴方向递增），因此该函数会将输入的字符串进行切分成多行。OLED_DISPLAY_8x16函数用于在oled屏幕上输出一个字符的8*16像素绘制。OLED_printf_US测试通过调研OLED_DISPLAY_8x16实现一行字符的输出。

1. //显示英文与数字8*16的ASCII码
   
2. void OLED_DISPLAY_8x16(uint8_t x, uint8_t y, uint16_t w){ //要显示汉字的编号
   " u9 }& P1 M- I8 b
3. //        printf("x=%d,y=%d,w=0X%04X w*16-512=%d\r\n",x,y,w,w*16-512);
   . y4 n( `0 U6 s5 t9 m. q
4.         uint16_t color = 0;
   
5.         uint16_t textData[16][8]={0};
   ' h; k% S+ g  |2 K4 c& G
6. //        uint8_t buffer[16][8]={0};
   
7.         for(uint8_t i=0; i<16; i++)
   5 O7 c0 T+ R& t- W6 B1 D8 i% w
8.         {
   # ^+ I; n$ B- A0 |
9.                 uint16_t buf=ASCII_8x16[(w*16)+i-512];
   
10. //                printf("0X%02X ",buf);
    / f8 }! H. _% m  ~9 i
11.                 for(uint8_t j=0;j<8;j++){
    7 Q- E- p2 R% {( O" Q! v
12. //                        printf("%d ",(0x01&(buf>>j))>0?0x01:0x00);
    8 X) h  k: ~* G2 z7 C  k  k( N
13. //                        buffer[8*(i/8)+j][i%8]=(0x01&(buf>>j))>0?1:0;
    2 o  y- p4 L. C$ u+ V# Z. X: h  Q
14.                         color = (0x01&(buf>>j))>0?LCD_DISP_BLACK:LCD_DISP_BLUE;
    5 m0 u- j5 N% M7 D
15.                         textData[8*(i/8)+j][i%8] = color;
    
16. //                        OLED_WritePixel(x+i%8,y+8*(i/8)+j,color);//单像素渲染
    $ Q$ b- t, {- g9 E0 ?# V
17.                 }
    
18. //                printf("\r\n");
    
19.         }
    8 j; i  q" b1 L6 \
20.         for(uint8_t i=0; i<16; i++)
    4 C, E5 p& O  d7 T% O' F$ P
21.         {
    
22.                 OLED_WriteLine(x,y+i,textData[i],8);//列像素渲染
    
23. //                for(uint8_t j=0;j<8;j++){
    % [- R; r! y5 _! P! i2 ]# \- R
24. //                        printf("%d",buffer[i][j]);
    2 _* n2 s- D( h% C
25. //                }
    . ^' q* o/ x, c' Y* l3 I- ^5 j
26. //                printf("\r\n");
    2 P7 Z$ C2 P. K
27.         }
    2 c/ o2 U1 ]9 u  K+ A/ |6 X
28. }
    
29. 
    
30. //用于OLED_printf函数专用的显示程序
    , q* x4 Z/ \7 E
31. void OLED_printf_US(uint8_t xpos,uint8_t ypos,uint8_t *str,uint8_t i){
    * ~* r8 y' Y: x: |2 `$ U
32.         uint8_t r=0;
    
33.         while(i != r){//i是长度值，当显示到i之后退出
    
34.                 OLED_DISPLAY_8x16(xpos+r*8,ypos,*str++);//显示英文与数字8*16的ASCII码
    5 H1 Q2 W& Y5 O. p* E, J
35.                 r++;
    
36.     }
    
37. }
    $ F' I$ w8 p4 v7 V0 o% _
38. //OLED专用的printf函数
    
39. //调用方法：OLED_printf(0,0,"123");
    
40. //注意若xpos或ypos过大，并内容较多时，会出现溢出边界
      W& j: _% E: i/ b
41. #define line_size 29
    # e. b% w9 w0 q% B+ C% r( W: B
42. #define row_size 16
    $ U! V8 Q, _" d, [. U4 O4 _- |
43. void OLED_printf (uint8_t xpos,uint8_t ypos,char *fmt, ...)
    / {1 \, n2 ^. |7 J; g
44. {
    
45.     char buff[line_size];  //用于存放转换后的数据 [长度],限定30字符长度，每个字符8像素宽度，屏幕宽240
    
46.     uint16_t size=0;
    , T( E2 k5 a' {6 @; B
47.     uint16_t row = 1+strlen(fmt)/line_size;//暂时没考虑自带换行符号情况
    6 G6 x) Z' _! r  r/ Y# m- n
48. //    printf("row=%d\r\n",row);
    * o* s: x, O+ r8 b! f
49.     for(uint16_t i=0;i<row;i++){
    
50.         va_list arg_ptr;
    
51.         va_start(arg_ptr,fmt);
    
52.         vsnprintf(buff, line_size,fmt+i*line_size,arg_ptr);//数据转换
    3 q& k2 B7 E7 g" }
53.         size=strlen(buff);                                        //得出数据长度
    & g# H$ @  o7 |* A
54.         if(strlen(buff)>line_size)size=line_size;                        //如果长度大于最大值，则长度等于最大值（多出部分忽略）
    - v$ m! Y8 ]) B. j& ]
55.         OLED_printf_US(xpos,ypos+i*row_size,(uint8_t *)buff,size);//最终调用OLED专用的printf函数来显示
    . ]  a6 q# W8 k" V/ z
56.         va_end(arg_ptr);
    
57.     }
    & N0 C8 Z& w* ]6 ^" |/ x
58. }

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# N+ ^/ C) L0 V) B* Z/ U【4】SPI的直接输出和DMA输出区别实现
        设置两个清屏函数BSP_LCD_Clear和BSP_LCD_Clear_DMA，一个采用HAL_SPI_Transmit写入数据显示，前面所述都是这种方式（通过调用LcdWriteData、LcdWriteDataMultiple，这个函数采用HAL_SPI_Transmit实现的），一个调用HAL_SPI_Transmit_DMA写入数据显示。

        BSP_LCD_Clear实现就是调用LcdWriteDataMultiple绘制240行的线，BSP_LCD_Clear_DMA实现就是分为两个半屏绘制（HAL_SPI_Transmit_DMA的接收数据组大小类型是uint16_t，最大支持0xfff,65535）。
2 |2 q  s9 I4 O% R

1. static void LCD_Address_Set(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
   
2. {
   
3.     /* 指定X方向操作区域 */
     f! j6 l0 m  L2 S1 p
4.         LcdWriteReg(0x2a);
   4 O  J8 J" F0 I) o$ F8 c
5.         LcdWriteData(x1 >> 8);
   
6.         LcdWriteData(x1);
   
7.         LcdWriteData(x2 >> 8);
   & x- _0 `1 z& Y- N: ]6 ~3 T/ P
8.         LcdWriteData(x2);
   7 h' p: P1 B- k' c! a  O$ J$ V" L
9. 
   
10.     /* 指定Y方向操作区域 */
    ! {' S, c$ j9 F" }. q0 K! w5 R7 A
11.         LcdWriteReg(0x2b);
    
12.     LcdWriteData(y1 >> 8);
    7 Z$ D2 U( s! g: }5 e* D' G6 L; E7 D
13.     LcdWriteData(y1);
    7 }3 e0 A5 [; p2 x/ p7 E- d9 E6 `
14.     LcdWriteData(y2 >> 8);
    ) W. D0 r  F% a
15.     LcdWriteData(y2);
    5 |& w! [9 M' _( C2 R2 H
16. 
    
17.     /* 发送该命令，LCD开始等待接收显存数据 */
    % J# O, n, B8 ^) x' V2 y4 i: w
18.     LcdWriteReg(0x2C);
    5 X# ?: b# \: {4 Y  j6 A! a
19. }
    
20. //指定位置，绘制一行像素直到屏幕右侧
    
21. void OLED_SetCursor(uint16_t Xpos, uint16_t Ypos)
    . a9 a* a& E. d! h4 k# r
22. {
      d# z( U, z! q# w
23.         LCD_Address_Set(Xpos,Ypos,WIDTH-1,Ypos);
    
24. }
    
25. 
    & s% q+ w% B) A5 k, b
26. void BSP_LCD_Clear(uint16_t Color)
    
27. {
    
28.         uint8_t black_gui[480] = {0};
    
29.         memset(black_gui, Color, sizeof(black_gui));
    
30. 
    
31.         for (uint32_t counter = 0; counter < 240; counter++)
    
32.         {
    0 `8 w0 G! D: b7 _8 \
33.                 /* Set Cursor */
    
34.                 OLED_SetCursor(0, counter);
    
35.                 /* Prepare to write to LCD RAM */
    
36.                 OLED_WriteReg(0x2C, (uint8_t*)NULL, 0);
    
37.                 /* RAM write data command */
    
38.                 LcdWriteDataMultiple(black_gui, 480);
    8 Y& x( H6 G+ n% d
39.         }
    
40. }
    
41. 
    
42. extern volatile uint8_t one_frame_done;
    2 q- s6 I/ Y3 u" v3 c
43. void BSP_LCD_Clear_DMA(uint16_t Color)
    * T4 N) M" p# |6 @$ p
44. {
    6 A. T4 e- @- x8 s7 |$ A
45.         uint8_t black_gui_DMA[WIDTH*HEIGHT*2] = {0X00};
    
46.         for(uint32_t i=0; i<WIDTH*HEIGHT; i++)
    4 [% [" Y$ d- [/ }" K
47.         {
    
48.                 black_gui_DMA[2*i]=Color>>8;
    / k; [) N0 |5 Y* P- s7 j% x' F9 @2 J
49.                 black_gui_DMA[2*i+1] = Color;
    
50.         }
    ; Y3 u7 B6 `( e, I
51.         printf("0X%02x%02x\r\n",black_gui_DMA[0],black_gui_DMA[1]);
    
52.         //需要分两次写入HAL_SPI_Transmit_DMA写入缓存大小uint16_t(0xfff,65535)
    7 i% J3 _' M4 [
53.         one_frame_done = 0;
    
54.     /* 指定显存操作地址为全屏*/
    9 @& R$ [% f1 t9 }
55.     LCD_Address_Set(0, 0, WIDTH - 1, HEIGHT/2 - 1);
    + ^. B. K2 ^! q
56.     Data_Cmd_State(1);/* 指定接下来的数据为数据 */
    
57.     /*DMA 写前半屏*/
    
58.     HAL_SPI_Transmit_DMA(&hspi1,black_gui_DMA, WIDTH*HEIGHT);
    
59.     while(!one_frame_done){/*release cpu and doing something else*/}
    
60.         one_frame_done = 0;
    4 Y  _$ D9 J- X( E2 e6 U1 P1 q* w
61.     /* 指定显存操作地址为全屏*/
    : y6 U6 R! B7 C+ ], s" i
62.     LCD_Address_Set(0, HEIGHT/2, WIDTH - 1, HEIGHT - 1);
    ' a( ^$ h0 K4 ~' I' l/ c
63.     Data_Cmd_State(1);/* 指定接下来的数据为数据 */
    ; q1 a! j: p3 V' l- _8 @
64.     /*DMA 写后半屏*/
    ; a$ J8 y! g# P3 i$ U
65.     HAL_SPI_Transmit_DMA(&hspi1,black_gui_DMA+WIDTH*HEIGHT, WIDTH*HEIGHT);
    
66.     while(!one_frame_done){/*release cpu and doing something else*/}
    ' L0 X. _" [/ y. M( A4 A) F
67. }

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6 J, c) [, z/ w) ^! q        前文3.3小节，已经开启了SPI的外部中断功能，则SPI的回调函数会被调用。one_frame_done是一个全局变量，在spi.c中定义，需要在spi.c加上HAL_SPI_TxCpltCallback的函数，用来替换stm32l4xx_hal_spi.c文件的spi中断回调实现：

1. //spi.c末加上spi的中断回调实现
   
2. /* USER CODE BEGIN 1 */
   
3. volatile uint8_t one_frame_done;
   3 O9 u* [& k* i. a
4. void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
   
5. {
   
6.         one_frame_done = 1;
   0 D" @+ ]# h4 j: }: M
7. }
   # ]! {4 _7 j' l
8. /* USER CODE END 1 */
   * x* P/ E1 J! d" O+ V, o' a3 W' w
9. 
   ; F; z$ ]  O' p) @
10. //用来替换调stm32l4xx_hal_spi.c的弱函数
    
11. __weak void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
    2 `% |; i( n) b- L
12. {
    7 ~, v7 v7 @& }5 Y. Z
13.   /* Prevent unused argument(s) compilation warning */
    
14.   UNUSED(hspi);
    
15. 
    
16.   /* NOTE : This function should not be modified, when the callback is needed,
    $ ]8 U5 b1 c. ^% ^0 B' a( K
17.             the HAL_SPI_TxCpltCallback should be implemented in the user file
    % z; w6 y. ]( |; {6 K
18.    */
    * C" b- U! Z' P# K
19. }

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六、程序编译及测试
        在main.c中加入按键功能，一个按键直接写入方式清屏（黑屏），一个按键DMA写入方式清屏（蓝屏幕），一个按键实现屏幕输出一段文字，另外通过串口发送字符串，实现在屏幕输出显示。

1. /* USER CODE BEGIN WHILE */
   $ U1 Z7 d) d. J
2.   while (1)
   8 R. j# t% ~3 ^& v3 s" D$ N) E$ A0 J
3.   {
   ! n- U7 ]0 ]3 l. w
4.           if(HLPUSART_RX_STA&0xC000){//溢出或换行，重新开始
   
5.                   OLED_printf(10,10,"%.*s",HLPUSART_RX_STA&0X0FFF, HLPUSART_RX_BUF);
   $ F! @$ q" I" V7 F5 U% s" _" _3 m
6.                   HLPUSART_RX_STA=0;//接收错误,重新开始
   
7.                   HAL_Delay(100);//等待
   ; i! g4 g8 a. m9 a2 [( K
8.           }
   
9.           if(KEY_0())
   * ~7 x7 H( H2 o
10.           {
    
11.                   OLED_printf(10,10,"hello world to stm32!I am an embedded enthusiast.");
    4 Q0 b. L3 L" ]
12.                   OLED_printf(10,48,"  STM32CubeIDE is an advanced C/C++ development platform "
    5 W6 F2 R( i* r- i
13.                                   "with peripheral configuration, code generation, code compilation, "
    - ~/ Q) G0 \* J) ], l5 H' O5 c5 l9 ^
14.                                   "and debug features for STM32 micro controllers and microprocessors.");
    
15. //                  OLED_printf(10,10,"!");
    
16.           }
    * Z, b; G2 t+ @: ^
17.           if(KEY_1())
    5 G' V( m2 _. j6 J
18.           {
    7 @8 `# Y4 ]6 s. R+ M% R
19.                   BSP_LCD_Clear(0xF800);
    
20.                   printf("OLED_Clear\r\n");
    
21.           }
    
22.           if(KEY_2())
    4 W1 c) w9 {9 c2 k$ R
23.           {
    
24.                   BSP_LCD_Clear_DMA(LCD_DISP_BLUE);
    
25.                   printf("OLED_Clear_DMA\r\n");
    
26.           }
    ! U' M8 ^3 t5 `9 o$ h
27.         Toggle_led0();
    
28.     /* USER CODE END WHILE */

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        编译完成后测试效果如下：

6 l" ~9 o/ d4 q9 l2 Q: I2 a        1）按键key1清屏，发送字符串
  A8 t2 p* H& [) m$ T/ C
* i0 {( a- k; U& g: `
7 m' |) {; d. [$ T, c' T8 e
' I9 A: v4 O* x! G3 }  b

" F& t+ V  C0 G% A, \* i, a
2 {( b4 v2 c, Z        2）按键key0，输出一段文字
% p# S& t- Q- G: M5 h2 z

6 K" A7 ]& G+ L0 E# t2 ^$ g
" ^. t6 N5 ]' M! l6 o8 J
七、附件
        oled.h

1. #ifndef _OLED_H_
   . ]/ ^/ J2 o: a: e, b2 h
2. #define _OLED_H_
   
3. /*
   3 @! ^2 U2 p; w; N- N: j: K
4. * for st7789 oled 模组
   % I" S& ^6 z, f: o
5. */
   
6. #define WIDTH                240
   ) s! U. X! K7 B) W
7. #define HEIGHT                240
   # }* h8 A( r1 j  p
8. #define BPP                16
   
9. 
   3 L, ]0 i0 [8 I& P6 F% J
10. /* Init script function */
      i  j& n4 p4 t8 t9 S
11. struct OLED_function {
    4 S) |# i: d9 ?
12.   uint8_t cmd;
    7 N3 J7 e) E2 Y
13.   uint16_t data;
    ( [+ U/ ^5 J3 }( }+ |0 @! F. ^; X
14. };
    
15. 
    
16. /* Init script commands */
    $ ]' m5 h+ a8 {- Q, `' u
17. enum OLED_cmd {
    
18.   OLED_START,
    
19.   OLED_END,
    - ?0 y' ?2 u, O5 e) o+ n
20.   OLED_CMD,
    # o3 Q, Q0 {3 u9 G4 ^; ^5 J; s
21.   OLED_DATA,
    # B. O2 @: z! l$ v. L) t# p5 I+ ^
22.   OLED_DELAY
    
23. };
    
24. 
    ) H$ i. f. Q/ I# U0 D* o
25. /************** 颜色(RGB 5,6,5) **************/
    & ^" Z1 ~, Z1 [
26. #define LCD_DISP_RED                    0xF800       //先高字节，后低字节
    
27. #define LCD_DISP_GREEN                  0x07E0
    
28. #define LCD_DISP_BLUE                   0x001F
    
29. #define LCD_DISP_WRITE                  0xFFFF
    
30. #define LCD_DISP_BLACK                  0x0000
    
31. #define LCD_DISP_GRAY                   0xEF5D
    9 r( y) S; H, h& M3 ]4 }5 X, S$ O, @
32. #define LCD_DISP_GRAY75                 0x39E7
    
33. #define LCD_DISP_GRAY50                 0x7BEF
    * S. ^1 T( w  T% e/ W' e
34. #define LCD_DISP_GRAY25                 0xADB5
    " [5 F" S/ S; {& u: R
35. 
    
36. /* oled Commands */
    
37. #define OLED_CASET        0x2A
    ! L" C# j0 x; W2 k( k% |
38. #define OLED_RASET        0x2B
    
39. #define OLED_RAMWR        0x2C
    7 L' x( h5 I7 R9 w7 O$ ?- k" `
40. #define OLED_RAMRD        0x2E
    6 p: F3 k' u+ K" g. B$ g" c
41. 
    - x, z) E3 R) B
42. //对该位写1或0
    
43. #define Data_Cmd_State(__D_C_State__)        HAL_GPIO_WritePin(LCD_DCX_GPIO_Port, LCD_DCX_Pin, (GPIO_PinState)(__D_C_State__))
    0 G" a( d2 v: k4 e: e& e- L  ~
44. #define OLED_RST_State(__RST_State__)        HAL_GPIO_WritePin(LCD_RST_GPIO_Port, LCD_RST_Pin, (GPIO_PinState)(__RST_State__))
    / F# G& t& P2 X- J: \/ J: i
45. #define LCD_PWR_State(__PWR_State__)        HAL_GPIO_WritePin(LCD_PWR_GPIO_Port, LCD_PWR_Pin, (GPIO_PinState)(__PWR_State__))
    
46. 
    
47. int OLED_init();
    
48. void LcdWriteReg(uint8_t Data);
    
49. void LcdWriteData(uint8_t Data);
    
50. void LcdWriteDataMultiple(uint8_t * pData, uint32_t NumItems);
    
51. 
    
52. void OLED_WritePixel(uint16_t Xpos, uint16_t Ypos, uint16_t RGBCode);
    , @" i7 M; A6 w% R; k5 V6 G
53. void OLED_WriteLine(uint16_t Xpos, uint16_t Ypos, uint16_t *RGBCode, uint16_t pointNum);
    7 w1 g( N/ p9 T& u
54. 
    
55. void BSP_LCD_Clear(uint16_t Color);
    
56. void BSP_LCD_Clear_DMA(uint16_t Color);
    / y6 P- f3 c3 T2 b. W
57. void OLED_printf (uint8_t xpos,uint8_t ypos,char *fmt, ...);
    % a( [' [4 H) R) u; r8 l5 O. R
58. 
    
59. #endif /* __oled_H */

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oled.c
* a6 Q0 d# q6 b" Q

1. #include "stm32l4xx_hal.h"
   
2. #include <stdio.h>
   
3. #include <stdlib.h>
   ' J3 R' o6 a! a- U7 Q: E6 _
4. #include <string.h>
   
5. #include <stdarg.h>
   
6. #include "main.h"
   " v* [" U: \( f
7. #include "ASCII.h"
   ; V( Z$ L, n9 a' g2 y' c
8. #include "oled.h"
   
9. 
   ' U0 T+ P3 o* V, x0 w# F% G8 \
10. extern SPI_HandleTypeDef hspi1;
    
11. //初始化命令集
    
12. static struct OLED_function OLED_cfg_script[] = {
    
13.   {OLED_START, OLED_START},
    
14.   {OLED_CMD, 0x11},
    
15.   {OLED_DELAY, 120},
    6 K+ K. r5 b- N7 g1 l
16.   {OLED_CMD, 0x36},
    
17.   {OLED_DATA, 0x00},
    
18.   {OLED_CMD, 0x3a},
    
19.   {OLED_DATA, 0x65},
    
20.   {OLED_CMD, 0xb2},
    
21.   {OLED_DATA, 0x0c},
    4 _! u( {4 I+ f+ m1 Q) ^) S. `- a, z. {
22.   {OLED_DATA, 0x0c},
    
23.   {OLED_DATA, 0x00},
    * K2 o5 v0 Q! @: d7 o2 Z1 t
24.   {OLED_DATA, 0x33},
    
25.   {OLED_DATA, 0x33},
    9 c, _* c, k  {) n! U3 |
26.   {OLED_CMD, 0xb7},
    5 e) Q# m: L2 C. S* ?9 \
27.   {OLED_DATA, 0x72},
    
28.   {OLED_CMD, 0xbb},
    ( d, [  d6 {( q2 f* K! V
29.   {OLED_DATA, 0x3d},
    1 Q0 J# c6 f5 d2 o2 v7 n' G7 ]) E. m
30.   {OLED_CMD, 0xc0},
    
31.   {OLED_DATA, 0x2c},
    & I3 X  V* ^* W9 r9 \1 w
32.   {OLED_CMD, 0xc2},
    ( N1 Z+ G1 i' F1 i$ V6 n3 ~$ [
33.   {OLED_DATA, 0x01},
    : Q/ C$ ^+ U5 M* |, a2 j
34.   {OLED_CMD, 0xc3},
    6 `/ f0 f% {3 }, W6 H% U6 x( ]
35.   {OLED_DATA, 0x19},
    
36.   {OLED_CMD, 0xc4},
    
37.   {OLED_DATA, 0x20},
    
38.   {OLED_CMD, 0xc6},
    ; y4 |. c( v2 a+ D
39.   {OLED_DATA, 0x0f},
    8 _# e0 H% S" B: @
40.   {OLED_CMD, 0xd0},
    7 O2 D$ O* _8 S5 O' b6 m$ \' Z
41.   {OLED_DATA, 0xa4},
    / v' c6 M9 Z. |: b, ^
42.   {OLED_DATA, 0xa1},
    
43.   {OLED_CMD, 0xe0},
    
44.   {OLED_DATA, 0x70},
    
45.   {OLED_DATA, 0x04},
    & x) t- _" Z  O% t. g9 J+ K/ F
46.   {OLED_DATA, 0x08},
    : R: x! T9 M, s5 r/ T: M
47.   {OLED_DATA, 0x09},
    
48.   {OLED_DATA, 0x09},
    . I. l/ W4 H  z7 G6 C
49.   {OLED_DATA, 0x05},
    3 ?+ W( g  H- j- h
50.   {OLED_DATA, 0x2a},
    
51.   {OLED_DATA, 0x33},
    
52.   {OLED_DATA, 0x41},
    
53.   {OLED_DATA, 0x07},
    
54.   {OLED_DATA, 0x13},
    6 Z+ v" |2 {1 r, ?
55.   {OLED_DATA, 0x13},
    0 d2 ^$ e; }6 W. t
56.   {OLED_DATA, 0x29},
    
57.   {OLED_DATA, 0x2f},
    
58.   {OLED_CMD, 0xe1},
    
59.   {OLED_DATA, 0x70},
    0 d# ?# K* z! @5 s
60.   {OLED_DATA, 0x03},
    
61.   {OLED_DATA, 0x09},
    & j* V; j1 K7 M, X1 S1 {4 ~) J
62.   {OLED_DATA, 0x0a},
    6 |* t- O4 W+ u# C, x
63.   {OLED_DATA, 0x09},
    ( B+ N0 j  f5 y
64.   {OLED_DATA, 0x06},
    7 S7 S3 M# V( G( D
65.   {OLED_DATA, 0x2b},
    * [5 R3 c9 `) [
66.   {OLED_DATA, 0x34},
    ) m5 N5 `: q6 r% @7 Q9 t0 Y# P: M" \
67.   {OLED_DATA, 0x41},
    % c. t# N0 K& W: B2 m3 L  U
68.   {OLED_DATA, 0x07},
    
69.   {OLED_DATA, 0x12},
    ) Y9 I2 e+ Q( s- m, L! G
70.   {OLED_DATA, 0x14},
    * U# ^0 @8 J% r& K' _3 G2 `; J
71.   {OLED_DATA, 0x28},
    ( p& s+ ~' M/ \: X0 M, J" M
72.   {OLED_DATA, 0x2e},
    
73.   {OLED_CMD, 0x21},
    
74.   {OLED_CMD, 0x29},
    ' P' R/ T$ j: p% t. G
75.   {OLED_CMD, 0x2a},
    - ^2 v7 r  D2 T5 v: `3 s( E7 i
76.   {OLED_DATA, 0x00},
    / h) e# g" H7 B6 q+ w
77.   {OLED_DATA, 0x00},
    
78.   {OLED_DATA, 0x00},
    6 s+ O( R; w7 y  w& d
79.   {OLED_DATA, 0xef},
    - C8 z/ W9 d* j( v" o
80.   {OLED_CMD, 0x2b},
    9 J0 j6 z3 f6 J1 S1 D
81.   {OLED_DATA, 0x00},
    # t- b7 J! h0 B! |5 Z7 X% c
82.   {OLED_DATA, 0x00},
    ( I" z% u$ ], y7 V& M  ^8 J$ W. ~
83.   {OLED_DATA, 0x00},
    
84.   {OLED_DATA, 0xef},
    
85.   {OLED_CMD, 0x2c},
    
86.   {OLED_END, OLED_END},
    
87. };
    & V, q+ b1 Q4 W$ a
88. 
    
89. static void OLED_run_cfg_script()
    * T: O/ I7 ]# w1 J7 N# t% T4 N9 ?3 W
90. {
    3 c, C% }! F# v3 g2 U! s# N1 W# q
91.           uint8_t data[2] = {0};
    
92.           int i = 0;
    2 R& c1 @( F4 ]$ V+ z/ V+ @, k
93.           int end_script = 0;
    ' u$ ?0 w! h" B/ ~+ P# n
94. 
    0 f6 k1 j  Z( v8 d9 R4 y3 G
95.           do {
    
96.             switch (OLED_cfg_script[i].cmd) {
    # ~2 U+ z8 I7 a) J, N5 E: J/ K( o. |
97.             case OLED_START:
    
98.               break;
    
99.             case OLED_CMD:
    1 }" E4 w4 [5 m& T3 r) B1 R
100.               data[0] = OLED_cfg_script[i].data & 0xff;
     * w* A9 k7 H' `. o3 Z; |
101.               LcdWriteReg(data[0]);
     9 B/ ~9 @5 H% i1 M& U6 h$ y9 t1 m# n  C8 M! E
102.               break;
     
103.             case OLED_DATA:
     + ?) y$ x( A  l/ W
104.               data[0] = OLED_cfg_script[i].data & 0xff;
     0 _% y+ H+ b/ g% |* w5 [
105.               LcdWriteData(data[0]);
     
106.               break;
     ( j' ?3 [6 T6 K/ U
107.             case OLED_DELAY:
     
108.               HAL_Delay(OLED_cfg_script[i].data);
     
109.               break;
     $ B9 h4 g/ Q7 o1 X+ L' t
110.             case OLED_END:
     ! t# b# V9 p; }, C& B/ C
111.               end_script = 1;
     
112.             }
     
113.             i++;
     - Q7 t: d' j" ^3 `) D/ J7 g
114.           } while (!end_script);
     ; [  z9 p+ c+ p5 S/ F
115. }
     
116. 
     
117. static void OLED_reset()
     
118. {
     
119.           OLED_RST_State(0);
     
120.           HAL_Delay(200);
     
121.           OLED_RST_State(1);
     9 ~; B/ P3 C* {% f% b
122.           HAL_Delay(150);
     2 S2 ^6 F/ E2 I8 D/ [0 c" w4 k+ M
123. }
     6 Z+ J+ h$ D, ?9 |) t; P: `
124. 
     
125. #define LCD_MAX_MEM16_BLOCK             (1 << 6)
     
126. #define LCD_PIXEL_PER_BLOCK             (LCD_MAX_MEM16_BLOCK >> 1)
       a  ~6 e1 `  r0 _
127. 
     
128. static void spec_send_fb(uint16_t color, uint16_t pixel_num)
     1 h! N. L0 _- `% D
129. {
     ' V( r+ e$ X. a# h
130.           uint16_t real_mem[LCD_MAX_MEM16_BLOCK] = {0};
     ( q$ ?3 Q6 Q, T2 J
131. 
     
132.           for (uint16_t i = 0; i < LCD_MAX_MEM16_BLOCK; ++i) {
       z" r) g( j- v2 q
133.                   real_mem[i] = color;
     
134.           }
     5 d! n0 J& J; R$ }* I
135. //          HAL_GPIO_WritePin(LCD_DCX_GPIO_Port, LCD_DCX_Pin, GPIO_PIN_SET);
       e8 C2 K5 x! K8 E- q/ F, P
136.           Data_Cmd_State(GPIO_PIN_SET);
     
137.           if (pixel_num <= LCD_MAX_MEM16_BLOCK) {
     5 m. X5 c3 K- Z! m  V/ U2 V
138.                   LcdWriteDataMultiple((uint8_t*)real_mem, pixel_num << 1);
     ! u: q8 H! v# C8 K1 ?! |
139.           } else {
     
140.                   uint16_t count = pixel_num / LCD_MAX_MEM16_BLOCK;
     " F) P/ a/ J3 i( _- U1 q
141.                   uint16_t remain = pixel_num % LCD_MAX_MEM16_BLOCK;
     ! f6 i  z$ z7 Z+ ^
142.                   for (uint16_t i = 0; i < count; ++i) {
     : B3 y2 ~7 n9 t! H9 H) |
143.                           LcdWriteDataMultiple((uint8_t*)real_mem, LCD_MAX_MEM16_BLOCK << 1);
     
144.                   }
     : p' p* u4 s( {  S: J" k
145.                   LcdWriteDataMultiple((uint8_t*)real_mem, remain << 1);
     
146.           }
     0 {% v  v3 _7 _% @# ?
147. }
     
148. 
     
149. static void OLED_display_picture(void)
     1 K! A: a% E0 L6 ^; g! l" m1 d( _
150. {
     6 c& n; C; l( b  x& O2 |
151.   LcdWriteReg(OLED_RAMWR);
     
152.   spec_send_fb(0x0, WIDTH * HEIGHT / 4);
     ' T% Z/ t2 z2 Q
153.   spec_send_fb(0x1111, WIDTH * HEIGHT / 4);
     6 {8 U* ^* O5 U! x
154.   spec_send_fb(0x7777, WIDTH * HEIGHT / 4);
     7 n( d( x  F0 ]- r$ L# C
155.   spec_send_fb(0xeeee, WIDTH * HEIGHT / 4);
     
156. }
     3 R( F% {" U1 W5 S
157. 
       J9 r$ b6 D- l3 c2 M! \" K. m
158. 
     
159. int OLED_init()
     
160. {
     : N+ g* X8 R* B7 k5 Z& L/ L
161.           LCD_PWR_State(0);//回显关闭
     , j0 t0 Q9 f- P+ H7 o$ g
162.           OLED_reset();
     
163.           OLED_run_cfg_script();
     
164.           LCD_PWR_State(1);//回显开启
     
165.           OLED_display_picture();
     
166. 
     7 ]% @3 l8 f; p. `
167.           return HAL_OK;
     
168. }
     / a  _) _; l! j0 Y2 a0 I
169. 
     , e+ x: i& }" x& @, q$ d
170. void OLED_WriteReg(uint8_t Command, uint8_t *Parameters, uint8_t NbParameters)
     
171. {
     : y( i, L: f0 @- }: B
172.           /* Send command */
     5 T8 A2 U7 g% x( M5 L8 b
173.           LcdWriteReg(Command);
     
174. 
     
175.           /* Send command's parameters if any */
     
176.           for (uint8_t i=0; i<NbParameters; i++)
     # ~4 Z  g4 H1 K6 g: _# h* U; R% C
177.           {
     
178.             LcdWriteData(Parameters[i]);
     , q8 k  U8 b; i$ `% H
179.           }
     % T/ t: f5 b; e) Z5 I- e0 I
180. }
     & L* e! e* O5 x
181. 
     
182. static void LCD_Address_Set(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
     2 P+ a5 k) E6 n! l" |
183. {
     
184.     /* 指定X方向操作区域 */
     
185.         LcdWriteReg(0x2a);
     
186.         LcdWriteData(x1 >> 8);
     9 R& m$ f4 L0 Y8 c$ L7 C) r, }
187.         LcdWriteData(x1);
     % ?7 y. M+ h2 @3 x
188.         LcdWriteData(x2 >> 8);
     1 b$ L1 L4 U: i- v# |% |) E! P  i
189.         LcdWriteData(x2);
     
190. 
     , j& j5 t8 A* R4 }9 H1 u
191.     /* 指定Y方向操作区域 */
     6 z, n# R# p: C& d7 ~( M2 n& d- P' I
192.         LcdWriteReg(0x2b);
     
193.     LcdWriteData(y1 >> 8);
     # M0 m, Y, V& X: [2 }, J
194.     LcdWriteData(y1);
     " _, f! a) w5 y; K- f' D( H7 V
195.     LcdWriteData(y2 >> 8);
     
196.     LcdWriteData(y2);
     
197. 
     ; k+ {' F/ [; Y2 j- z
198.     /* 发送该命令，LCD开始等待接收显存数据 */
     
199.     LcdWriteReg(0x2C);
     4 Q! \3 ^% g* ~) B9 W
200. }
     
201. 
     
202. void OLED_SetCursor(uint16_t Xpos, uint16_t Ypos)
     
203. {
     
204.         LCD_Address_Set(Xpos,Ypos,WIDTH-1,Ypos);
     2 I0 _) E, c! i5 A
205. }
     
206. 
     & q! [/ \) Q8 B7 _5 Z* \
207. void BSP_LCD_Clear(uint16_t Color)
     
208. {
     ) P( t0 a% ?$ Q
209.         uint8_t black_gui[480] = {0};
     
210.         memset(black_gui, Color, sizeof(black_gui));
     ! t3 |9 a) b2 a3 E' _/ e
211. 
     
212.         for (uint32_t counter = 0; counter < 240; counter++)
     & }* r/ s4 \3 D# D/ Z
213.         {
     1 Q& \; n$ p0 w( S5 H+ J. r5 G* C8 a( o
214.                 /* Set Cursor */
     
215.                 OLED_SetCursor(0, counter);
     3 n7 p' _8 w* W, ^: F& x2 N' [; x
216.                 /* Prepare to write to LCD RAM */
     4 ^! ~" E. j: {* k. |
217.                 OLED_WriteReg(0x2C, (uint8_t*)NULL, 0);
     
218.                 /* RAM write data command */
     ( @& e5 ^2 w0 ^8 C
219.                 LcdWriteDataMultiple(black_gui, 480);
     
220.         }
     
221. }
     
222. 
     
223. extern volatile uint8_t one_frame_done;
     8 Q, l1 B$ @% F1 g  s) y5 S
224. void BSP_LCD_Clear_DMA(uint16_t Color)
     : `6 f2 [+ M  O  q: w  k
225. {
     
226.         uint8_t black_gui_DMA[WIDTH*HEIGHT*2] = {0X00};
     7 g! `( ?; ~) V
227.         for(uint32_t i=0; i<WIDTH*HEIGHT; i++)
     * Q2 `$ k- }: D* O0 F% Q
228.         {
     
229.                 black_gui_DMA[2*i]=Color>>8;
     % \5 Z- g5 T1 Q# K1 p2 j0 J& @
230.                 black_gui_DMA[2*i+1] = Color;
     - f+ P7 y5 a' V5 n- Z& D
231.         }
     0 p5 r( R0 `& r
232.         printf("0X%02x%02x\r\n",black_gui_DMA[0],black_gui_DMA[1]);
     2 u8 @9 y6 u9 v) \; ~9 ^
233.         //需要分两次写入HAL_SPI_Transmit_DMA写入缓存大小uint16_t(0xfff,65535)
     
234.         one_frame_done = 0;
     
235.     /* 指定显存操作地址为全屏*/
     * q2 o3 p9 V6 c
236.     LCD_Address_Set(0, 0, WIDTH - 1, HEIGHT/2 - 1);
     
237.     Data_Cmd_State(1);/* 指定接下来的数据为数据 */
     
238.     /*DMA 写前半屏*/
     . w2 o, b5 Q# c; y
239.     HAL_SPI_Transmit_DMA(&hspi1,black_gui_DMA, WIDTH*HEIGHT);
     * f+ R2 V8 I0 e# e4 B
240.     while(!one_frame_done){/*release cpu and doing something else*/}
     
241.         one_frame_done = 0;
     & I8 y5 D  j' g1 C% Q) |+ e! M
242.     /* 指定显存操作地址为全屏*/
     
243.     LCD_Address_Set(0, HEIGHT/2, WIDTH - 1, HEIGHT - 1);
     
244.     Data_Cmd_State(1);/* 指定接下来的数据为数据 */
     2 v+ F$ }; z/ x$ {- `7 ^$ L
245.     /*DMA 写后半屏*/
     & H) C4 z4 b9 N: U
246.     HAL_SPI_Transmit_DMA(&hspi1,black_gui_DMA+WIDTH*HEIGHT, WIDTH*HEIGHT);
     
247.     while(!one_frame_done){/*release cpu and doing something else*/}
     ! [2 p% a) z9 E0 d2 x
248. }
     
249. 
     
250. //显示英文与数字8*16的ASCII码
     
251. void OLED_DISPLAY_8x16(uint8_t x, uint8_t y, uint16_t w){ //要显示汉字的编号
     
252. //        printf("x=%d,y=%d,w=0X%04X w*16-512=%d\r\n",x,y,w,w*16-512);
     4 G. H! R9 t( X2 Q  e/ V* U5 P
253.         uint16_t color = 0;
     / d8 J- Z0 O1 b* {( x
254.         uint16_t textData[16][8]={0};
     
255. //        uint8_t buffer[16][8]={0};
     8 E6 [8 {# b8 e, p
256.         for(uint8_t i=0; i<16; i++)
     
257.         {
     
258.                 uint16_t buf=ASCII_8x16[(w*16)+i-512];
     : _- A5 U6 U; f* }+ [
259. //                printf("0X%02X ",buf);
     
260.                 for(uint8_t j=0;j<8;j++){
     1 }  u# J$ F% }. a5 R, w1 L
261. //                        printf("%d ",(0x01&(buf>>j))>0?0x01:0x00);
     
262. //                        buffer[8*(i/8)+j][i%8]=(0x01&(buf>>j))>0?1:0;
     
263.                         color = (0x01&(buf>>j))>0?LCD_DISP_BLACK:LCD_DISP_BLUE;
     
264.                         textData[8*(i/8)+j][i%8] = color;
     
265. //                        OLED_WritePixel(x+i%8,y+8*(i/8)+j,color);//单像素渲染
     1 R  c" S% q( v
266.                 }
     9 Q: J4 A# b2 p3 G3 }0 l
267. //                printf("\r\n");
     
268.         }
     
269.         for(uint8_t i=0; i<16; i++)
     
270.         {
     
271.                 OLED_WriteLine(x,y+i,textData[i],8);//列像素渲染
     
272. //                for(uint8_t j=0;j<8;j++){
     
273. //                        printf("%d",buffer[i][j]);
     
274. //                }
     & v$ g4 q$ W/ B- S8 M5 q
275. //                printf("\r\n");
     
276.         }
     & f9 L  ~5 v3 c( h* M
277. }
     
278. 
     
279. //用于OLED_printf函数专用的显示程序
     # A; L, T- [# t4 I: i1 G9 K! _
280. void OLED_printf_US(uint8_t xpos,uint8_t ypos,uint8_t *str,uint8_t i){
     
281.         uint8_t r=0;
     
282.         while(i != r){//i是长度值，当显示到i之后退出
     
283.                 OLED_DISPLAY_8x16(xpos+r*8,ypos,*str++);//显示英文与数字8*16的ASCII码
     , X3 f5 s2 u* g& l- i, X$ B
284.                 r++;
     . I+ w' f, I2 W
285.     }
     ! U8 x  d" \7 Q4 j" G
286. }
     ' {1 \+ T* h# O* l+ R, K* M" j
287. //OLED专用的printf函数
     
288. //调用方法：OLED_printf(0,0,"123");
     
289. //注意若xpos或ypos过大，并内容较多时，会出现溢出边界
     # g8 [' {& f* M1 ?. D: U4 q5 f1 ~7 r
290. #define line_size 29
     . d& q6 v* b4 X4 K/ A. |! j# h( S$ z
291. #define row_size 16
     3 }! o; T) o/ c% f( O
292. void OLED_printf (uint8_t xpos,uint8_t ypos,char *fmt, ...)
     
293. {
     * i1 m2 ~( g: A
294.     char buff[line_size];  //用于存放转换后的数据 [长度],限定30字符长度，每个字符8像素宽度，屏幕宽240
     0 {8 X& G/ B6 u2 L6 b
295.     uint16_t size=0;
     
296.     uint16_t row = 1+strlen(fmt)/line_size;//暂时没考虑自带换行符号情况
     5 d7 m; U" ?$ z( J
297. //    printf("row=%d\r\n",row);
     
298.     for(uint16_t i=0;i<row;i++){
     " f- Q$ t8 O- @0 M0 p
299.         va_list arg_ptr;
     + _6 @" L/ h6 c) e* S  T2 B& _. U
300.         va_start(arg_ptr,fmt);
     
301.         vsnprintf(buff, line_size,fmt+i*line_size,arg_ptr);//数据转换
     
302.         size=strlen(buff);                                        //得出数据长度
     
303.         if(strlen(buff)>line_size)size=line_size;                        //如果长度大于最大值，则长度等于最大值（多出部分忽略）
     
304.         OLED_printf_US(xpos,ypos+i*row_size,(uint8_t *)buff,size);//最终调用OLED专用的printf函数来显示
     3 D* J6 T* Y% g/ [! D( Q
305.         va_end(arg_ptr);
     . ^! z4 x! S# [3 c+ k9 q
306.     }
     ) d; ^! I+ n- m" m7 l, E
307. }
     # F3 s1 ^! }7 ^+ C
308. 
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309. void OLED_WritePixel(uint16_t Xpos, uint16_t Ypos, uint16_t data)
     
310. {
     
311.           uint8_t dataB = 0;
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312. 
     # E+ [6 q4 G% ]1 Z+ [6 x
313.           /* Set Cursor */
     & H) P: R0 C: ?/ L, a  g2 @/ S
314.           OLED_SetCursor(Xpos, Ypos);
     + e. H  y" ~3 B2 @
315. 
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316.           /* Prepare to write to LCD RAM */
     ' K% `0 J- a9 @' Z1 x& Q% X
317.           OLED_WriteReg(0x2C, (uint8_t*)NULL, 0);   /* RAM write data command */
     
318. 
     % s! z5 M! n1 F
319.           /* Write RAM data */
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320.           dataB = (uint8_t)(data >> 8);
     
321.           LcdWriteData(dataB);
     + B% c- u3 [5 S1 p  Y( C2 _3 n
322.           dataB = (uint8_t)data;
     
323.           LcdWriteData(dataB);
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324. }
     : Z5 ]" L4 z: e' H
325. 
     
326. uint8_t endian_buffer[480];
     
327. 
     
328. void OLED_WriteLine(uint16_t Xpos, uint16_t Ypos, uint16_t *RGBCode, uint16_t pointNum)
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329. {
     
330.           /* Set Cursor */
       P; X2 h: e1 O& C: l: o$ d
331.           OLED_SetCursor(Xpos, Ypos);
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332. 
     + s' L$ m8 n! f, D1 l. ~
333.           /* Prepare to write to LCD RAM */
     
334.           OLED_WriteReg(0x2C, (uint8_t*)NULL, 0);   /* RAM write data command */
     / H0 M( s6 j$ H4 d
335. 
     4 k' w0 `. {; i$ ^6 \# E
336.           for (uint16_t i = 0; i < pointNum; i++) {
     
337.             endian_buffer[2*i] = (uint8_t)(RGBCode[i] >> 8);
     
338.             endian_buffer[2*i + 1] = (uint8_t)RGBCode[i];
     # ~6 f! O9 T9 X/ v+ `6 y
339.           }
     9 S, ^9 I& L; \  {* v" g
340. 
     
341.           /* Write RAM data */
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342.           LcdWriteDataMultiple(endian_buffer, pointNum*2);
     
343. }
     
344. 
     $ ?8 ?0 R. `; g+ N5 h8 z; O
345. /********************************************************************
     
346. *
     
347. *   LcdWriteReg
     ! `) w% s$ W# U7 u% a; f; K# C
348. *
     
349. *         Function description:
     * M2 \  f* }2 {/ m& O, |
350. *   Sets display register
     
351. */
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352. void LcdWriteReg(uint8_t Data)
     
353. {
     ! B% W* E$ ?$ v& ~
354.           Data_Cmd_State(0);
     
355.           HAL_SPI_Transmit(&hspi1, &Data, 1, 10);
     
356. }
     8 F  N& W% _2 |9 r2 O- n
357. 
     
358. /********************************************************************
     4 G) _: J- p4 n$ |) Z% Z* T, d* _
359. *
     ) \( K2 l/ S- F
360. *          LcdWriteData
     
361. *
     0 S8 S  V3 T: P% s  X' v9 _
362. *         Function description:
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363. *   Writes a value to a display register
     # i! q+ U" |1 x9 F
364. */
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365. void LcdWriteData(uint8_t Data)
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366. {
     
367.           Data_Cmd_State(1);
     
368.           HAL_SPI_Transmit(&hspi1, &Data, 1, 10);
     
369. }
     7 y% j: Z$ d# u
370. 
     
371. /********************************************************************
     
372. *
     ) r  p: I" P( l" {6 X5 x
373. *        LcdWriteDataMultiple
     
374. *
     
375. *         Function description:
     % S  H- M0 c; X, _5 f* f7 @
376. *   Writes multiple values to a display register.
     
377. */
     
378. void LcdWriteDataMultiple(uint8_t * pData, uint32_t NumItems)
     
379. {
     7 n* t( M1 W3 K' s0 N
380.           Data_Cmd_State(1);
     
381.           HAL_SPI_Transmit(&hspi1, pData, NumItems, 10);
     
382. }

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ASCII.h源码前文已给出，mian.c部分源码：

1. /* USER CODE END Header */
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2. /* Includes ------------------------------------------------------------------*/
   8 R# ^% Z: P6 Z, D
3. #include "main.h"
   
4. #include "dcmi.h"
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5. #include "dma.h"
   
6. #include "i2c.h"
   ( G6 t9 A" n* |( g3 m
7. #include "usart.h"
   
8. #include "spi.h"
   
9. #include "gpio.h"
   
10. 
    
11. /* Private includes ----------------------------------------------------------*/
    + o2 L" Q( b5 W- X) r8 m
12. /* USER CODE BEGIN Includes */
    " B4 M$ N0 o. a+ G/ O5 _
13. #include "../../ICore/key/key.h"
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14. #include "../../ICore/led/led.h"
    ; s( _/ m. V' o
15. #include "../../ICore/print/print.h"
    9 n9 b- w: T7 h8 T9 w# s
16. #include "../../ICore/usart/usart.h"
    
17. #include "../../ICore/oled/oled.h"
    
18. /* USER CODE END Includes */
    $ C- s: S- V1 r1 r7 e- h  M
19. 
    / Q! z- x$ j! J9 N6 p. _% E( }
20. /* Private typedef -----------------------------------------------------------*/
    
21. /* USER CODE BEGIN PTD */
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22. 
    " g0 ]' {' M: M5 r+ w
23. /* USER CODE END PTD */
    - k) [) U) c9 h7 ^9 w
24. 
    
25. /* Private define ------------------------------------------------------------*/
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26. /* USER CODE BEGIN PD */
    " |' o$ X7 `5 t% s# _7 @
27. /* USER CODE END PD */
    
28. 
    
29. /* Private macro -------------------------------------------------------------*/
    ) F& }' l# w- _! T( o( D
30. /* USER CODE BEGIN PM */
    
31. 
    & k* x% S2 g, k
32. /* USER CODE END PM */
    
33. 
    
34. /* Private variables ---------------------------------------------------------*/
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35. 
    $ q- C7 V* a8 @
36. /* USER CODE BEGIN PV */
    ' \1 F  K; l* f, y1 r! [
37. 
    . j! x8 r) V$ H8 @, _2 g+ g
38. /* USER CODE END PV */
    : Q  N7 t/ \7 c3 s2 s9 k" v
39. 
    
40. /* Private function prototypes -----------------------------------------------*/
    / h8 W9 f* Y( w$ ~0 u! ~7 v6 P! U
41. void SystemClock_Config(void);
    0 c% l. j% S' F" J  F  H2 L# X
42. /* USER CODE BEGIN PFP */
    
43. 
    2 E- }' y2 S% F1 m1 m
44. /* USER CODE END PFP */
    , j8 U9 k0 J9 M* V4 Z
45. 
    
46. /* Private user code ---------------------------------------------------------*/
    
47. /* USER CODE BEGIN 0 */
    + S, i0 y! u" e9 E  s( |
48. //volatile uint8_t data1[LCD_RAM_SIZE];
    
49. //volatile uint8_t data2[LCD_RAM_SIZE];
    ( V) D* a/ z1 J( b. q
50. //extern volatile uint8_t one_frame_done;
    4 o  F* _' o& R2 J+ T
51. /* USER CODE END 0 */
    
52. 
    : ^* `: A/ ^/ o" P) j
53. /**
    
54.   * @brief  The application entry point.
    , L& F1 U# _# Y. d
55.   * @retval int
    " n7 d, d) B  E$ G$ Z; B
56.   */
    ! H3 J* y$ K$ _: [$ t: n. i
57. int main(void)
    
58. {
    8 m" R) d3 M4 y4 P0 i1 A$ P
59.   /* USER CODE BEGIN 1 */
      n8 }+ i" ]- L1 k% @! L1 V% ^
60. 
    " D/ x4 u4 {. E: f3 t
61.   /* USER CODE END 1 */
    " n5 M$ e; l& _% G+ j$ L% a
62. 
    
63.   /* MCU Configuration--------------------------------------------------------*/
    
64. 
    
65.   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    % |4 v- M. s+ T! K3 p# S2 v
66.   HAL_Init();
    4 r; A" W$ f8 H
67. 
    
68.   /* USER CODE BEGIN Init */
    
69. 
    
70.   /* USER CODE END Init */
    
71. 
    
72.   /* Configure the system clock */
    
73.   SystemClock_Config();
    
74. 
    
75.   /* USER CODE BEGIN SysInit */
    
76. 
    7 v! A8 b! O$ I' _
77.   /* USER CODE END SysInit */
    
78. 
    
79.   /* Initialize all configured peripherals */
    
80.   MX_GPIO_Init();
    * m& W1 r$ a5 I9 q$ F# E% Q. x3 L
81.   MX_DMA_Init();
    " @# }5 h- ]2 ~4 L
82.   MX_LPUART1_UART_Init();
    - I1 l) H& s& n/ I$ n. i& S
83.   MX_SPI1_Init();
    
84.   /* USER CODE BEGIN 2 */
    / ~) d! s4 Y0 u' M
85.   ResetPrintInit(&hlpuart1);
    % g1 c; j' _$ q; |8 }2 n
86.   HAL_UART_Receive_IT(&hlpuart1,(uint8_t *)&HLPUSART_NewData, 1); //再开启接收中断
    : d/ o: s# R/ [& ?
87.   HLPUSART_RX_STA = 0;
    ) U; n% F5 T- w' N: `
88.   OLED_init();
    ; i% A4 S8 a* ~! d& X& G
89.   //
    
90.   set_led0_val(0);
    
91.   set_led1_val(get_key0_val());
    
92.   /* USER CODE END 2 */
    : w% K1 n$ h' l0 V' I! J3 m6 ^; K
93. 
    
94.   /* Infinite loop */
    1 u3 ^; l! W9 r+ W( @
95.   /* USER CODE BEGIN WHILE */
    
96.   while (1)
    
97.   {
    6 P4 B1 w+ j+ s4 K, d6 C
98.           if(HLPUSART_RX_STA&0xC000){//溢出或换行，重新开始
    # o' R. ~+ ]) s! ~, H
99.                   OLED_printf(10,10,"%.*s",HLPUSART_RX_STA&0X0FFF, HLPUSART_RX_BUF);
    
100.                   HLPUSART_RX_STA=0;//接收错误,重新开始
     
101.                   HAL_Delay(100);//等待
     . c! W* Z$ [* z4 I, m6 B7 F
102.           }
     6 b+ S( D! Z3 \' U' ?
103.           if(KEY_0())
     1 f( c' _& d9 M9 n" [1 A# ~
104.           {
     / W1 a8 p" p& j% [% @- E
105.                   OLED_printf(10,10,"hello world to stm32!I am an embedded enthusiast.");
     
106.                   OLED_printf(10,48,"  STM32CubeIDE is an advanced C/C++ development platform "
     
107.                                   "with peripheral configuration, code generation, code compilation, "
     / b" x8 J; P; i  H8 c# }$ B% g
108.                                   "and debug features for STM32 micro controllers and microprocessors.");
     % q( p, l, h3 d( h5 p: k5 j& C
109. //                  OLED_printf(10,10,"!");
     % z" Y8 m% n- u' X. r
110.           }
     
111.           if(KEY_1())
     0 P5 {9 h/ ]. a  W4 t) D# A" w
112.           {
     
113.                   BSP_LCD_Clear(0xF800);
     ) k) N! X4 c# u* {* Y) d
114.                   printf("OLED_Clear\r\n");
     7 D; Z8 q  s( ]  x  ?) E2 {) ~
115.           }
     ) q( p5 A# w- {; v3 K9 N% m
116.           if(KEY_2())
     $ x% k3 G8 Z' S: P+ w  |
117.           {
     
118.                   BSP_LCD_Clear_DMA(LCD_DISP_BLUE);
     
119.                   printf("OLED_Clear_DMA\r\n");
     
120.           }
     # Q1 ^- K+ ?0 Q, M$ G
121.         Toggle_led0();
     
122.     /* USER CODE END WHILE */
     
123. 
     
124.     /* USER CODE BEGIN 3 */
     
125.   }
     
126.   /* USER CODE END 3 */
     & [( [- D( _  \* z( _& y; ^, k
127. }

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