Ai-M61-32S i2c点亮oled详细教程及踩坑记录

一、首先了解SDK中的i2c
https://bbs.ai-thinker.com/forum ... 1895&extra=page%3D1 泽哥这篇文章写的也很详细，首先参考这个对SDK中的i2c有个初步的认识
二、硬件连接
这里参考泽哥的代码，使用IO0和IO1作为i2c功能使用，后来发现按照其注释连接有问题，sda和scl注释反了



如下，IO0是SCl，IO1是SDA

此oled模组引脚较为简单，只有4p，从左到右依次是GND,VDD,SCK,SDA，于是按照如下连接
oled         Ai-M61-32S
GND <---> GND
VDD <---> 3V3
SCK  <---> IO0
SDA <---> IO1


三、oled工程创建
1.复制i2c_eeprom目录，并将其命名为i2c_oled

2.添加oled.c和oled.h文件，主要用于写oled初始化，清屏，刷图等函数供main函数调用，h文件中则用来声明这些函数以及定义一些宏，如：从机地址等


3.CMakeLists.txt 中的 project 名称换成 i2c_oled，并且添加 target_sources(app PRIVATE oled.c)

四、oled初始化代码编写
从淘宝商家拿到的init code如下，需要设置

1. static unsigned char OLED_init_cmd[25]=
   
2. {
   
3.   /*0xae,0X00,0X10,0x40,0X81,0XCF,0xff,0xa1,0xa4,
   
4.   0xA6,0xc8,0xa8,0x3F,0xd5,0x80,0xd3,0x00,0XDA,0X12,
   
5.   0x8d,0x14,0xdb,0x40,0X20,0X02,0xd9,0xf1,0xAF*/
   
6.        0xAE,//关闭显示
   
7.        0xD5,//设置时钟分频因子,震荡频率
   
8.        0x80,  //[3:0],分频因子;[7:4],震荡频率
   
9. 
   
10.        0xA8,//设置驱动路数
    
11.        0X3F,//默认0X3F(1/64)
    
12.        0xD3,//设置显示偏移
    
13.        0X00,//默认为0
    
14.        0x40,//设置显示开始行 [5:0],行数.                              
    
15.        0x8D,//电荷泵设置
    
16.        0x14,//bit2，开启/关闭
    
17.        0x20,//设置内存地址模式
    
18.        0x02,//[1:0],00，列地址模式;01，行地址模式;10,页地址模式;默认10;
    
19.        0xA1,//段重定义设置,bit0:0,0->0;1,0->127;
    
20.        0xC8,//设置COM扫描方向;bit3:0,普通模式;1,重定义模式 COM[N-1]->COM0;N:驱动路数
    
21.        0xDA,//设置COM硬件引脚配置
    
22.        0x12,//[5:4]配置            
    
23.        0x81,//对比度设置
    
24.        0xEF,//1~255;默认0X7F (亮度设置,越大越亮)
    
25.        0xD9,//设置预充电周期
    
26.        0xf1,//[3:0],PHASE 1;[7:4],PHASE 2;
    
27.        0xDB,//设置VCOMH 电压倍率
    
28.        0x30,//[6:4] 000,0.65*vcc;001,0.77*vcc;011,0.83*vcc;
    
29.        0xA4,//全局显示开启;bit0:1,开启;0,关闭;(白屏/黑屏)
    
30.        0xA6,//设置显示方式;bit0:1,反相显示;0,正常显示        
    
31.        0xAF,//开启显示     
    
32. };

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然后需要根据SDK中的发送api将这些code发送到屏端，然后先找个例程参考下发送时序

1. uint8_t I2C_TxData_Polling(uint8_t Address, uint8_t *Buffer, uint8_t Length)
   
2. {
   
3.     uint16_t i = 0;
   
4. 
   
5.     sI2C_GenerateStart();
   
6. 
   
7.     sI2C_WriteByte(OLED_I2C_ADDRESS);
   
8. 
   
9.     if (sI2C_GetACK())
   
10.     {
    
11.         sI2C_GenerateStop();
    
12.         return (1);
    
13.     }
    
14. 
    
15.     sI2C_WriteByte(Address);
    
16. 
    
17.     if (sI2C_GetACK())
    
18.     {
    
19.         sI2C_GenerateStop();
    
20.         return (1);
    
21.     }
    
22. 
    
23.     for (i = 0; i < Length; i++)
    
24.     {
    
25.         sI2C_WriteByte(*Buffer++);
    
26. 
    
27.         if (sI2C_GetACK())
    
28.         {
    
29.             break;
    
30.         }
    
31.     }
    
32. 
    
33.     sI2C_GenerateStop();
    
34. 
    
35.     if (i == Length)
    
36.     {
    
37.         return (0);
    
38.     }
    
39.     else
    
40.     {
    
41.         return (1);
    
42.     }
    
43. }

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如上是从网上找的单片机上驱动oled屏幕的i2c发送时序：start->写从机地址->等从机ack->发寄存器地址->发数据->等从机ack ..... ->发数据->等从机ack->stop，于是根据泽哥的讲解以及SDK中的demo，尝试编写以下函数

1. static void oled_write(unsigned char reg_addr,unsigned char *buff, char buf_size)
   
2. {
   
3.     struct bflb_i2c_msg_s msgs[2];
   
4.   
   
5.     msgs[0].addr = OLED_I2C_ADDRESS;
   
6.     msgs[0].flags = I2C_M_NOSTOP;
   
7.     msgs[0].buffer = &reg_addr;
   
8.     msgs[0].length = 1;
   
9.    
   
10.     msgs[1].addr = OLED_I2C_ADDRESS;
    
11.     msgs[1].flags = 0;
    
12.     msgs[1].buffer = buff;
    
13.     msgs[1].length = buf_size;
    
14. 
    
15.     bflb_i2c_transfer(i2c0, msgs, 2);
    
16.     //bflb_mtimer_delay_ms(100); //此处影响刷屏速度，先直接去掉后面查看是否存在其他问题
    
17. }
    
18. 
    
19. 
    
20. void OLED_Init(void)
    
21. {
    
22.     oled_write(OLED_CMD,OLED_init_cmd, sizeof(OLED_init_cmd) /sizeof(unsigned char));
    
23.     printf("OLED_Init over\r\n");
    
24. }

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上述中的 OLED_I2C_ADDRESS ，从其他例程中看到是 0x78，于是我在此也填的这个，后面因为这事浪费了很久，此处应该是 0x3c，左移一位然后最低位为读写控制位

五、取模软件取模

参照这个博客进行取模操作，博主讲解得十分详细 https://blog.csdn.net/qq_39400113/article/details/108036400


六、取模显示效果图


七、实际使用中发现如果i2c通讯失败，官方的SDK并没有报错log，于是在 bflb_i2c_transfer 函数中添加以下打印，来判断i2c通讯失败
由于上面从机地址的问题，导致屏幕一直不亮，添加log流程也都跑完了，也没看出什么问题，幸好手头有一个逻辑分析仪，踩一下波形发现，发送完从机地址后没有回ack，配置的0x78但是波形解析是0xF0，于是改为0x3c再试试就ok了，于是想SDk里面通讯失败咋没有报错的log呢，比如 rx timeout啥的，于是就查看 bflb_i2c_transfer 函数的定义，然后找到了异常时的return，但是此处没有log打印出问题，所以出问题时并没有提示，于是加上以下log，判断下i2c transfer是否存在问题

1. int bflb_i2c_transfer(struct bflb_device_s *dev, struct bflb_i2c_msg_s *msgs, int count)
   
2. {
   
3.     uint16_t subaddr = 0;
   
4.     uint16_t subaddr_size = 0;
   
5.     bool is_addr_10bit = false;
   
6.     int ret = 0;
   
7. 
   
8.     bflb_i2c_disable(dev);
   
9. 
   
10.     for (uint16_t i = 0; i < count; i++) {
    
11.         if (msgs[i].flags & I2C_M_TEN) {
    
12.             is_addr_10bit = true;
    
13.         } else {
    
14.             is_addr_10bit = false;
    
15.         }
    
16.         if (msgs[i].flags & I2C_M_NOSTOP) {
    
17.             subaddr = 0;
    
18.             for (uint8_t j = 0; j < msgs[i].length; j++) {
    
19.                 subaddr += msgs[i].buffer[j] << (j * 8);
    
20.             }
    
21.             subaddr_size = msgs[i].length;
    
22.             bflb_i2c_addr_config(dev, msgs[i].addr, subaddr, subaddr_size, is_addr_10bit);
    
23.             i++;
    
24.         } else {
    
25.             subaddr = 0;
    
26.             subaddr_size = 0;
    
27.             bflb_i2c_addr_config(dev, msgs[i].addr, subaddr, subaddr_size, is_addr_10bit);
    
28.         }
    
29. 
    
30.         if (msgs[i].length > 256) {
    
31.             return -EINVAL;
    
32.         }
    
33.         bflb_i2c_set_datalen(dev, msgs[i].length);
    
34.         if (msgs[i].flags & I2C_M_READ) {
    
35.             bflb_i2c_set_dir(dev, 1);
    
36.             if ((msgs[i].flags & I2C_M_DMA) == 0) {
    
37.                 ret = bflb_i2c_read_bytes(dev, msgs[i].buffer, msgs[i].length);
    
38.                 if (ret < 0) {
    
39.                     return ret;
    
40.                 }
    
41.             } else {
    
42.                 bflb_i2c_enable(dev);
    
43.             }
    
44.         } else {
    
45.             bflb_i2c_set_dir(dev, 0);
    
46.             if ((msgs[i].flags & I2C_M_DMA) == 0) {
    
47.                 ret = bflb_i2c_write_bytes(dev, msgs[i].buffer, msgs[i].length);
    
48.                 if (ret < 0) {
    
49. ++                  printf("i2c bflb_i2c_transfer error:%d\r\n",ret);
    
50.                     return ret;
    
51.                 }
    
52. ++                //printf("i2c bflb_i2c_transfer Ok\r\n");
    
53.             } else {
    
54.                 bflb_i2c_enable(dev);
    
55.             }
    
56.         }
    
57.     }
    
58. 
    
59.     return 0;
    
60. }

复制代码

上传的附件：

i2c_oled.zip (4.84 KB, 下载次数: 10)

2023-12-10 17:35 上传

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八、添加ASIIC字符显示
应群友的要求，补上字符显示的部分

1. //在指定位置显示一个字符,包括部分字符
   
2. //x:0~127
   
3. //y:0~63
   
4. //mode:0,反白显示;1,正常显示                                 
   
5. //size:选择字体 16/12
   
6. void OLED_ShowChar(unsigned char x,unsigned char y,unsigned char chr,unsigned char Char_Size)
   
7. {              
   
8.         unsigned char c=0,i=0;        
   
9.                 c=chr-' ';//得到偏移后的值                        
   
10.                 if(x>Max_Column-1){x=0;y=y+2;}
    
11.                 if(Char_Size ==16)
    
12.         {
    
13.             OLED_Set_Pos(x,y);        
    
14.             for(i=0;i<8;i++)
    
15.                 oled_write(OLED_DATA,&F8X16[c*16+i],1);
    
16.             OLED_Set_Pos(x,y+1);
    
17.             for(i=0;i<8;i++)
    
18.                 oled_write(OLED_DATA,&F8X16[c*16+i+8],1);
    
19.         }
    
20.         else {        
    
21.             OLED_Set_Pos(x,y);
    
22.             for(i=0;i<6;i++)
    
23.                 oled_write(OLED_DATA,&F6x8[c][i],1);         
    
24.         }
    
25. }
    
26. 
    
27. //显示一个字符号串
    
28. void OLED_ShowString(unsigned char x,unsigned char y,unsigned char *chr,unsigned char Char_Size)
    
29. {
    
30.         unsigned char j=0;
    
31.         while (chr[j]!='\0')
    
32.         {                OLED_ShowChar(x,y,chr[j],Char_Size);
    
33.                         x+=8;
    
34.                 if(x>120){x=0;y+=2;}
    
35.                         j++;
    
36.         }
    
37. }

复制代码

然后加上ASIIC字模

1. //常用ASCII表
   
2. //偏移量32
   
3. //ASCII字符集
   
4. //偏移量32
   
5. //大小:12*6
   
6. /************************************6*8的点阵************************************/
   
7. const unsigned char F6x8[][6] =               
   
8. {
   
9. 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// sp
   
10. 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,// !
    
11. 0x00, 0x00, 0x07, 0x00, 0x07, 0x00,// "
    
12. 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,// #
    
13. 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,// $
    
14. 0x00, 0x62, 0x64, 0x08, 0x13, 0x23,// %
    
15. 0x00, 0x36, 0x49, 0x55, 0x22, 0x50,// &
    
16. 0x00, 0x00, 0x05, 0x03, 0x00, 0x00,// '
    
17. 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,// (
    
18. 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,// )
    
19. 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,// *
    
20. 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,// +
    
21. 0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,// ,
    
22. 0x00, 0x08, 0x08, 0x08, 0x08, 0x08,// -
    
23. 0x00, 0x00, 0x60, 0x60, 0x00, 0x00,// .
    
24. 0x00, 0x20, 0x10, 0x08, 0x04, 0x02,// /
    
25. 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
    
26. 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
    
27. 0x00, 0x42, 0x61, 0x51, 0x49, 0x46,// 2
    
28. 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
    
29. 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
    
30. 0x00, 0x27, 0x45, 0x45, 0x45, 0x39,// 5
    
31. 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
    
32. 0x00, 0x01, 0x71, 0x09, 0x05, 0x03,// 7
    
33. 0x00, 0x36, 0x49, 0x49, 0x49, 0x36,// 8
    
34. 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
    
35. 0x00, 0x00, 0x36, 0x36, 0x00, 0x00,// :
    
36. 0x00, 0x00, 0x56, 0x36, 0x00, 0x00,// ;
    
37. 0x00, 0x08, 0x14, 0x22, 0x41, 0x00,// <
    
38. 0x00, 0x14, 0x14, 0x14, 0x14, 0x14,// =
    
39. 0x00, 0x00, 0x41, 0x22, 0x14, 0x08,// >
    
40. 0x00, 0x02, 0x01, 0x51, 0x09, 0x06,// ?
    
41. 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,// @
    
42. 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,// A
    
43. 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,// B
    
44. 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,// C
    
45. 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
    
46. 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,// E
    
47. 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,// F
    
48. 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,// G
    
49. 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
    
50. 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,// I
    
51. 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,// J
    
52. 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,// K
    
53. 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,// L
    
54. 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,// M
    
55. 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
    
56. 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
    
57. 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,// P
    
58. 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
    
59. 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,// R
    
60. 0x00, 0x46, 0x49, 0x49, 0x49, 0x31,// S
    
61. 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,// T
    
62. 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
    
63. 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
    
64. 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,// W
    
65. 0x00, 0x63, 0x14, 0x08, 0x14, 0x63,// X
    
66. 0x00, 0x07, 0x08, 0x70, 0x08, 0x07,// Y
    
67. 0x00, 0x61, 0x51, 0x49, 0x45, 0x43,// Z
    
68. 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,// [
    
69. 0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,// 55
    
70. 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,// ]
    
71. 0x00, 0x04, 0x02, 0x01, 0x02, 0x04,// ^
    
72. 0x00, 0x40, 0x40, 0x40, 0x40, 0x40,// _
    
73. 0x00, 0x00, 0x01, 0x02, 0x04, 0x00,// '
    
74. 0x00, 0x20, 0x54, 0x54, 0x54, 0x78,// a
    
75. 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,// b
    
76. 0x00, 0x38, 0x44, 0x44, 0x44, 0x20,// c
    
77. 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F,// d
    
78. 0x00, 0x38, 0x54, 0x54, 0x54, 0x18,// e
    
79. 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,// f
    
80. 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,// g
    
81. 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,// h
    
82. 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,// i
    
83. 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,// j
    
84. 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,// k
    
85. 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,// l
    
86. 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,// m
    
87. 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,// n
    
88. 0x00, 0x38, 0x44, 0x44, 0x44, 0x38,// o
    
89. 0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,// p
    
90. 0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,// q
    
91. 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,// r
    
92. 0x00, 0x48, 0x54, 0x54, 0x54, 0x20,// s
    
93. 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,// t
    
94. 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
    
95. 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
    
96. 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
    
97. 0x00, 0x44, 0x28, 0x10, 0x28, 0x44,// x
    
98. 0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,// y
    
99. 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,// z
    
100. 0x14, 0x14, 0x14, 0x14, 0x14, 0x14,// horiz lines
     
101. };
     
102. /****************************************8*16的点阵************************************/
     
103. const unsigned char F8X16[]=         
     
104. {
     
105.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
     
106.   0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
     
107.   0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
     
108.   0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
     
109.   0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
     
110.   0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
     
111.   0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
     
112.   0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
     
113.   0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
     
114.   0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
     
115.   0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
     
116.   0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
     
117.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
     
118.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
     
119.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
     
120.   0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
     
121.   0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
     
122.   0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
     
123.   0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
     
124.   0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
     
125.   0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
     
126.   0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
     
127.   0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
     
128.   0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
     
129.   0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
     
130.   0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
     
131.   0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
     
132.   0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
     
133.   0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
     
134.   0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
     
135.   0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
     
136.   0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
     
137.   0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
     
138.   0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
     
139.   0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
     
140.   0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
     
141.   0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
     
142.   0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
     
143.   0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
     
144.   0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
     
145.   0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
     
146.   0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
     
147.   0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
     
148.   0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
     
149.   0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
     
150.   0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
     
151.   0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
     
152.   0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
     
153.   0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
     
154.   0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
     
155.   0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
     
156.   0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
     
157.   0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
     
158.   0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
     
159.   0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
     
160.   0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
     
161.   0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
     
162.   0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
     
163.   0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
     
164.   0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
     
165.   0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
     
166.   0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
     
167.   0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
     
168.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
     
169.   0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
     
170.   0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
     
171.   0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
     
172.   0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
     
173.   0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
     
174.   0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
     
175.   0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
     
176.   0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
     
177.   0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
     
178.   0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
     
179.   0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
     
180.   0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
     
181.   0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
     
182.   0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
     
183.   0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
     
184.   0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
     
185.   0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
     
186.   0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
     
187.   0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
     
188.   0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
     
189.   0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
     
190.   0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
     
191.   0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
     
192.   0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
     
193.   0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
     
194.   0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
     
195.   0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
     
196.   0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
     
197.   0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
     
198.   0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
     
199.   0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
     
200. };

复制代码

1. int main(void)
   
2. {
   
3.     struct bflb_device_s* gpio;
   
4.     board_init();
   
5.     //board_i2c0_gpio_init();
   
6.    
   
7. 
   
8.     gpio = bflb_device_get_by_name("gpio");
   
9.     /* I2C0_SCL */
   
10.     bflb_gpio_init(gpio, GPIO_PIN_0, GPIO_FUNC_I2C0 | GPIO_ALTERNATE | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1);
    
11.     /* I2C0_SDA */
    
12.     bflb_gpio_init(gpio, GPIO_PIN_1, GPIO_FUNC_I2C0 | GPIO_ALTERNATE | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1);
    
13.     i2c0 = bflb_device_get_by_name("i2c0");
    
14. 
    
15.     bflb_i2c_init(i2c0, 400000);
    
16.     OLED_Init();
    
17.     OLED_clr();
    
18.     //OLED_show_bmp();
    
19.     /*OLED_ShowCHinese(39,0,0);
    
20.     OLED_ShowCHinese(55,0,1);
    
21.     OLED_ShowCHinese(71,0,2);
    
22. 
    
23.     OLED_ShowCHinese(39,2,0);//此处是第2行，因为汉字是16*16
    
24.     OLED_ShowCHinese(55,2,1);
    
25.     OLED_ShowCHinese(71,2,2);
    
26. 
    
27.     OLED_ShowCHinese(39,4,0);
    
28.     OLED_ShowCHinese(55,4,1);
    
29.     OLED_ShowCHinese(71,4,2);
    
30. 
    
31.     OLED_ShowCHinese(39,6,0);
    
32.     OLED_ShowCHinese(55,6,1);
    
33.     OLED_ShowCHinese(71,6,2);*/
    
34.     OLED_ShowString(6,3,"0.96' OLED TEST",16);
    
35.     printf("end\r\n");
    
36. 
    
37.     while(1){
    
38.     }
    
39. }

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2023-12-24 19:50 上传

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佬 你这个程序清屏一次需要多少ms? 有用逻辑分析仪测量一下时间吗

is麟儿 发表于 2024-1-11 14:54
佬 你这个程序清屏一次需要多少ms? 有用逻辑分析仪测量一下时间吗

具体没有呢，速度挺慢的