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stm32学习记录-7.1iic驱动0.96寸oled_oled 0.96寸 iic

oled 0.96寸 iic

目录

背景知识

一.iic

二.0.96寸oled

配置流程

使用流程

代码


 源码仓库链接;stm32 learning code: 记录stm32学习过程,源代码 (gitee.com)

背景知识

1.GPIO输入输出(IO口配置)

一.iic

iic是同步、半双工,带数据应答,支持总线挂载多设备。

硬件电路

关键概念说明

由于iic中时钟线和数据线都都配置为开漏输出模式,外接上拉电阻,所以空闲时SCL和SDA都为高电平。

1.起始信号:SCL高电平期间,SDA从高电平变为低电平,只能是主机产生。

2.发送一个字节:SCL低电平期间,主机机将数据依次放到SDA线上(高位先行,与串口相反),从机将在SCL高电平期间读取数据位,所以SCL高电平期间SDA不允许有数据变化(否则就变成了启停信号),依次循环8次,即可发送一个字节。

3.接收一个字节: SCL低电平期间(设置为开漏模式时,主机SDA要置1释放数据线),从机将数据依次放到SDA线上(高位先行,与串口相反),主机将在SCL高电平期间读取数据位,所以SCL高电平期间SDA不允许有数据变化(否则就变成了启停信号),依次循环8次,即可接收一个字节(主机在接收前,需要释放SDA,输出设置为1)。主机一般上升沿读取数据,从机下降沿以后就准备下一位数据。

4.终止信号:SCL高电平期间,SDA从低电平变为高电平。SCL高电平期间,SDA从低电平变为高电平。

5.发送应答:主机在接收完成一个字节之后,在下一个时钟发送一位数据,数据0表示应答(空闲的时候为高电平,所以低电平是有反馈的结果),数据1表示非应答。

6.接收应答:主机在发送完成一个字节之后,在下一个时钟发接收一位数据,数据0表示应答,数据1表示非应答(主机在接收之前,需要释放SDA)。

通信流程

从设备有多个寄存器时,设备将多个寄存器放到一个队列中,通过一个指针指向读写寄存器位置,每次读写数据后,该指针会自动加一,所以一次读写多个数据时,会自动依次读写后续寄存器数据

1.指定地址写(指定设备,指定寄存器写入数据)

2.指定地址读(指定设备,读取指定寄存器数据):先通过写命令,指定设备目标寄存器,再通过读命令获取指定寄存器数据

第十步主机的应答信号为非应答信号(高电平1)

二.0.96寸oled

分辨率128*64,显示确定坐标时,原点为左上角,y轴是向下的。长(x轴)128个像素点。宽(y轴)64个像素点。 宽度方向被均分为8块,每块称为一页,一页中有128个字节,每个字节就对应宽方向的8个像素点。

关键参数说明

配置流程

iic配置流程

oled配置

1.iic配置

2.配置控制寄存器0x00:按照官方配置即可

使用流程

硬件连接

oled-SCL->PB8
oled-SDA->PB9
oled-3V3->3V3
oled-GND->GND

iic使用流程如上通信流程说明

oled使用流程

1.设置光标位置(向控制寄存器0x00写数据),像素点坐标系中,写数据起始位置。每一次都是显存全部数据重写,太费时间了。

光标位置设置三部分

位置说明

实际代码

2.写数据(向数据寄存器0x40写数据)

代码

通过iic使0.96寸oled显示屏字符串

iic.c

  1. #include "iic.h"
  2. #include "delay.h"
  3. void iicInit(void)
  4. {
  5. GPIO_InitTypeDef GPIO_InitStructure;//1.创建gpio配置结构体
  6. RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);//2.使能gpiob时钟
  7. //3.配置gpio口基本属性
  8. GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_OD;//开漏输出
  9. GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8;//GPIOB8为iic的scl
  10. GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;//速度为50mhz
  11. GPIO_Init(GPIOB,&GPIO_InitStructure);//4.初始化
  12. GPIO_InitStructure.GPIO_Pin=GPIO_Pin_9;//GPIOB9为iic的SDA
  13. GPIO_Init(GPIOB,&GPIO_InitStructure);//初始化
  14. GPIO_SetBits(GPIOB,GPIO_Pin_8|GPIO_Pin_9);//初始情况SDA/SCL为高电平
  15. }
  16. /*引脚配置3个函数*********************/
  17. /**
  18. * 函 数:写SCL高低电平
  19. * 参 数:要写入SCL的电平值,范围:0/1
  20. * 返 回 值:无
  21. * 说 明:当上层函数需要写SCL时,此函数会被调用
  22. * 用户需要根据参数传入的值,将SCL置为高电平或者低电平
  23. * 当参数传入0时,置SCL为低电平,当参数传入1时,置SCL为高电平
  24. */
  25. void iicSclW(u8 BitValue)
  26. {
  27. GPIO_WriteBit(GPIOB,GPIO_Pin_8,(BitAction)BitValue);//根据BitValue,设置SCL引脚的电平
  28. // delay_us(10);
  29. }
  30. /**
  31. * 函 数:写SDA高低电平
  32. * 参 数:要写入SDA的电平值,范围:0/1
  33. * 返 回 值:无
  34. * 说 明:当上层函数需要写SDA时,此函数会被调用
  35. * 用户需要根据参数传入的值,将SDA置为高电平或者低电平
  36. * 当参数传入0时,置SDA为低电平,当参数传入1时,置SDA为高电平
  37. */
  38. void iicSdaW(u8 BitValue)
  39. {
  40. GPIO_WriteBit(GPIOB,GPIO_Pin_9,(BitAction)BitValue);//根据BitValue,设置SDA引脚的电平
  41. // delay_us(10);
  42. }
  43. /**
  44. * 函 数:读SDA高低电平
  45. * 参 数:无
  46. * 返 回 值:读出SDA的电平值,范围:0/1
  47. * 说 明:当上层函数需要读SDA时,此函数会被调用
  48. */
  49. uint8_t iicSdaR(void)
  50. {
  51. uint8_t BitValue;
  52. BitValue=GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_9);//读取SDA电平
  53. // delay_us(10);
  54. return BitValue;
  55. }
  56. /*通信协议6个函数*********************/
  57. /**
  58. * 函 数:I2C起始
  59. * 参 数:无
  60. * 返 回 值:无
  61. */
  62. void iicStart(void)
  63. {
  64. iicSdaW(1);//释放SDA,确保SDA为高电平
  65. iicSclW(1);//释放SCL,确保SCL为高电平
  66. iicSdaW(0);//在SCL高电平期间,拉低SDA,产生起始信号
  67. iicSclW(0);//拉低SCL,一个时钟结束
  68. }
  69. /**
  70. * 函 数:I2C终止
  71. * 参 数:无
  72. * 返 回 值:无
  73. */
  74. void iicStop(void)
  75. {
  76. iicSdaW(0);//拉低SDA,确保SDA为低电平
  77. iicSclW(1);//拉高SCL一个时钟开始
  78. iicSdaW(1);//在SCL高电平期间,释放SDA,产生终止信号
  79. }
  80. /**
  81. * 函 数:I2C发送一个字节
  82. * 参 数:Byte 要发送的一个字节数据,范围:0x00~0xFF
  83. * 返 回 值:无
  84. */
  85. void iicSendByte(u8 Byte)
  86. {
  87. u8 i;
  88. for(i=0;i<8;i++)//循环8次,主机依次发送数据(一个字节8位)的每一位
  89. {
  90. iicSdaW((Byte&(0x80>>i)));//写取指定位值
  91. iicSclW(1);//释放SCL,一个时钟开始,从机在SCL高电平期间读取SDA
  92. iicSclW(0);//拉低SCL,一个时钟结束,主机开始发送下一位数据
  93. }
  94. }
  95. /**
  96. * 函 数:I2C接收一个字节
  97. * 参 数:无
  98. * 返 回 值:Byte 接收的一个字节数据,范围:0x00~0xFF
  99. */
  100. u8 iicReciveByte(void)
  101. {
  102. u8 i,Byte=0x00;//定义接收的数据,并赋初值0x00,此处必须赋初值0x00,后面会用到
  103. iicSdaW(1);//接收前,主机先确保释放SDA,避免干扰从机的数据发送
  104. for(i=0;i<8;i++)//循环8次,主机依次接收数据的每一位
  105. {
  106. iicSclW(1);//释放SCL,一个时钟开始,主机机在SCL高电平期间读取SDA
  107. if(iicSdaR()==1) Byte|=(0x80>>i);//读取SDA数据,并存储到Byte变量
  108. //当SDA为1时,置变量指定位为1,当SDA为0时,不做处理,指定位为默认的初值0
  109. iicSclW(0);//拉低SCL,一个时钟结束,主机开始发送下一位数据
  110. }
  111. return Byte;//返回接收到的一个字节数据
  112. }
  113. /**
  114. * 函 数:I2C发送应答位
  115. * 参 数:Byte 要发送的应答位,范围:0~1,0表示应答,1表示非应答
  116. * 返 回 值:无
  117. */
  118. void iicSendAck(u8 AckBit)
  119. {
  120. iicSdaW(AckBit);//主机把应答位数据放到SDA线
  121. iicSclW(1);//释放SCL,一个时钟开始,主机机在SCL高电平期间读取SDA
  122. iicSclW(0);//拉低SCL,一个时钟结束,主机开始发送下一位数据
  123. }
  124. /**
  125. * 函 数:I2C接收应答位
  126. * 参 数:无
  127. * 返 回 值:接收到的应答位,范围:0~1,0表示应答,1表示非应答
  128. */
  129. u8 iicReciveAck(void)
  130. {
  131. u8 AskBit;//定义应答位变量
  132. iicSdaW(1);//接收前,主机先确保释放SDA,避免干扰从机的数据发送
  133. iicSclW(1);//释放SCL,一个时钟开始,主机机在SCL高电平期间读取SDA
  134. AskBit=iicSdaR();//将应答位存储到变量里
  135. iicSclW(0);//拉低SCL,一个时钟结束,主机开始发送下一位数据
  136. return AskBit;//返回定义应答位变量
  137. }

iic.h

  1. #ifndef __IIC_H
  2. #define __IIC_H
  3. #include "sys.h"
  4. void iicInit(void);
  5. void iicStart(void);
  6. void iicStop(void);
  7. void iicSendByte(u8 Byte);
  8. u8 iicReciveByte(void);
  9. void iicSendAck(u8 AckBit);
  10. u8 iicReciveAck(void);
  11. #endif

oled.c

  1. #include "iic.h"
  2. #include "delay.h"
  3. #include "oled.h"
  4. #include "font.h"
  5. /**
  6. * OLED显存数组
  7. * 所有的显示函数,都只是对此显存数组进行读写
  8. * 随后调用OLED_Update函数或OLED_UpdateArea函数
  9. * 才会将显存数组的数据发送到OLED硬件,进行显示
  10. */
  11. uint8_t OLED_DisplayBuf[8][128];
  12. /**
  13. * 函 数:OLED写命令
  14. * 参 数:Command 要写入的命令值,范围:0x00~0xFF
  15. * 返 回 值:无
  16. */
  17. void oledWriteCommand(u8 Command)
  18. {
  19. iicStart();//1.起始信号
  20. iicSendByte(0x78);//2.oled设备地址0x78
  21. iicReciveAck();//3.应答信号
  22. iicSendByte(0x00);//4.写oled寄存器地址
  23. iicReciveAck();//5.应答信号
  24. iicSendByte(Command);//6.发送数据
  25. iicReciveAck();//7.应答信号
  26. iicStop();//8.停止信号
  27. }
  28. /**
  29. * 函 数:OLED写数据
  30. * 参 数:Data 要写入数据的起始地址
  31. * 参 数:Count 要写入数据的数量
  32. * 返 回 值:无
  33. */
  34. void oledWriteData(u8 *Data,u8 Count)
  35. {
  36. u8 i;
  37. iicStart();//1.起始信号
  38. iicSendByte(0x78);//2.oled设备地址0x78
  39. iicReciveAck();//3.接收应答信号
  40. iicSendByte(0x40);//4.目标oled设置寄存器地址0x40
  41. iicReciveAck();//5.接收应答
  42. for(i=0;i<Count;i++)//依次发送多位数据
  43. {
  44. iicSendByte(Data[i]);//6.发送数据
  45. iicReciveAck();//7.接收应答
  46. }
  47. iicStop();//8.停止信号
  48. }
  49. void oledInit()
  50. {
  51. iicInit(); //先调用底层的端口初始化iic
  52. /*写入一系列的命令,对OLED进行初始化配置*/
  53. oledWriteCommand(0xAE); //设置显示开启/关闭,0xAE关闭,0xAF开启
  54. oledWriteCommand(0xD5); //设置显示时钟分频比/振荡器频率
  55. oledWriteCommand(0x80); //0x00~0xFF
  56. oledWriteCommand(0xA8); //设置多路复用率
  57. oledWriteCommand(0x3F); //0x0E~0x3F
  58. oledWriteCommand(0xD3); //设置显示偏移
  59. oledWriteCommand(0x00); //0x00~0x7F
  60. oledWriteCommand(0x40); //设置显示开始行,0x40~0x7F
  61. oledWriteCommand(0xA1); //设置左右方向,0xA1正常,0xA0左右反置
  62. oledWriteCommand(0xC8); //设置上下方向,0xC8正常,0xC0上下反置
  63. oledWriteCommand(0xDA); //设置COM引脚硬件配置
  64. oledWriteCommand(0x12);
  65. oledWriteCommand(0x81); //设置对比度
  66. oledWriteCommand(0xCF); //0x00~0xFF
  67. oledWriteCommand(0xD9); //设置预充电周期
  68. oledWriteCommand(0xF1);
  69. oledWriteCommand(0xDB); //设置VCOMH取消选择级别
  70. oledWriteCommand(0x30);
  71. oledWriteCommand(0xA4); //设置整个显示打开/关闭
  72. oledWriteCommand(0xA6); //设置正常/反色显示,0xA6正常,0xA7反色
  73. oledWriteCommand(0x8D); //设置充电泵
  74. oledWriteCommand(0x14);
  75. oledWriteCommand(0xAF); //开启显示
  76. oledClear();//OLED清屏
  77. oledUpdate();//更新显示,清屏,防止初始化后未显示内容时花屏
  78. }
  79. /**
  80. * 函 数:将OLED显存数组全部清零
  81. * 参 数:无
  82. * 返 回 值:无
  83. * 说 明:调用此函数后,要想真正地呈现在屏幕上,还需调用更新函数
  84. */
  85. void oledClear(void)
  86. {
  87. u8 i,j;
  88. for(i=0;i<8;i++)//遍历8页
  89. {
  90. for(j=0;j<128;j++)//遍历128列
  91. {
  92. OLED_DisplayBuf[i][j]=0x00;//将显存数组数据全部清零
  93. }
  94. }
  95. }
  96. /**
  97. * 函 数:将OLED显存数组更新到OLED屏幕
  98. * 参 数:无
  99. * 返 回 值:无
  100. * 说 明:所有的显示函数,都只是对OLED显存数组进行读写
  101. * 随后调用OLED_Update函数或OLED_UpdateArea函数
  102. * 才会将显存数组的数据发送到OLED硬件,进行显示
  103. * 故调用显示函数后,要想真正地呈现在屏幕上,还需调用更新函数
  104. */
  105. void oledUpdate(void)
  106. {
  107. u8 j;
  108. for(j=0;j<8;j++)/*遍历每一页*/
  109. {
  110. oledSetCursor(j,0);/*设置光标位置为每一页的第一列*/
  111. oledWriteData(OLED_DisplayBuf[j],128);/*连续写入128个数据,将显存数组的数据写入到OLED硬件*/
  112. }
  113. }
  114. /**
  115. * 函 数:OLED设置显示光标位置
  116. * 参 数:Page 指定光标所在的页,范围:0~7
  117. * 参 数:X 指定光标所在的X轴坐标,范围:0~127
  118. * 返 回 值:无
  119. * 说 明:OLED默认的Y轴,只能8个Bit为一组写入,即1页等于8个Y轴坐标
  120. */
  121. void oledSetCursor(u8 Page,u8 X)
  122. {
  123. oledWriteCommand(0xB0|Page);//设置页位置
  124. oledWriteCommand(0x0f&X);//设置X位置低4位
  125. oledWriteCommand(0x10|(X>>4));//设置X位置高4位
  126. }
  127. /**
  128. * 函 数:OLED显示一个字符
  129. * 参 数:X 指定字符左上角的横坐标,范围:0~127
  130. * 参 数:Y 指定字符左上角的纵坐标,范围:0~63
  131. * 参 数:Char 指定要显示的字符,范围:ASCII码可见字符
  132. * 参 数:FontSize 指定字体大小
  133. * 范围:OLED_8X16 宽8像素,高16像素
  134. * OLED_6X8 宽6像素,高8像素
  135. * 返 回 值:无
  136. * 说 明:调用此函数后,要想真正地呈现在屏幕上,还需调用更新函数
  137. */
  138. void oledShowChar(u8 X,u8 Y,char Char, u8 FontSize)
  139. {
  140. if (FontSize == OLED_8X16) //字体为宽8像素,高16像素
  141. {
  142. /*将ASCII字模库OLED_F8x16的指定数据以8*16的图像格式显示,通过与字库中空字符作差确定目标字符对应点阵位置*/
  143. oledShowImage(X, Y, 8, 16, OLED_F8x16[Char - ' ']);
  144. }
  145. else if(FontSize == OLED_6X8) //字体为宽6像素,高8像素
  146. {
  147. /*将ASCII字模库OLED_F6x8的指定数据以6*8的图像格式显示*/
  148. oledShowImage(X, Y, 6, 8, OLED_F6x8[Char - ' ']);
  149. }
  150. }
  151. /**
  152. * 函 数:OLED显示图像
  153. * 参 数:X 指定图像左上角的横坐标,范围:0~127
  154. * 参 数:Y 指定图像左上角的纵坐标,范围:0~63
  155. * 参 数:Width 指定图像的宽度,范围:0~128
  156. * 参 数:Height 指定图像的高度,范围:0~64
  157. * 参 数:Image 指定要显示的图像
  158. * 返 回 值:无
  159. * 说 明:调用此函数后,要想真正地呈现在屏幕上,还需调用更新函数
  160. */
  161. void oledShowImage(uint8_t X, uint8_t Y, uint8_t Width, uint8_t Height, const uint8_t *Image)
  162. {
  163. uint8_t i, j;
  164. /*参数检查,保证指定图像不会超出屏幕范围*/
  165. if (X > 127) {return;}
  166. if (Y > 63) {return;}
  167. /*将图像所在区域清空*/
  168. oledClearArea(X, Y, Width, Height);
  169. /*遍历指定图像涉及的相关页*/
  170. /*(Height - 1) / 8 + 1的目的是Height / 8并向上取整*/
  171. for (j = 0; j < (Height - 1) / 8 + 1; j ++)
  172. {
  173. /*遍历指定图像涉及的相关列*/
  174. for (i = 0; i < Width; i ++)
  175. {
  176. /*超出边界,则跳过显示*/
  177. if (X + i > 127) {break;}
  178. if (Y / 8 + j > 7) {return;}
  179. /*显示图像在当前页的内容*/
  180. OLED_DisplayBuf[Y / 8 + j][X + i] |= Image[j * Width + i] << (Y % 8);
  181. /*超出边界,则跳过显示*/
  182. /*使用continue的目的是,下一页超出边界时,上一页的后续内容还需要继续显示*/
  183. if (Y / 8 + j + 1 > 7) {continue;}
  184. /*显示图像在下一页的内容*/
  185. OLED_DisplayBuf[Y / 8 + j + 1][X + i] |= Image[j * Width + i] >> (8 - Y % 8);
  186. }
  187. }
  188. }
  189. /**
  190. * 函 数:将OLED显存数组部分清零
  191. * 参 数:X 指定区域左上角的横坐标,范围:0~127
  192. * 参 数:Y 指定区域左上角的纵坐标,范围:0~63
  193. * 参 数:Width 指定区域的宽度,范围:0~128
  194. * 参 数:Height 指定区域的高度,范围:0~64
  195. * 返 回 值:无
  196. * 说 明:调用此函数后,要想真正地呈现在屏幕上,还需调用更新函数
  197. */
  198. void oledClearArea(uint8_t X, uint8_t Y, uint8_t Width, uint8_t Height)
  199. {
  200. uint8_t i, j;
  201. /*参数检查,保证指定区域不会超出屏幕范围*/
  202. if (X > 127) {return;}
  203. if (Y > 63) {return;}
  204. if (X + Width > 128) {Width = 128 - X;}
  205. if (Y + Height > 64) {Height = 64 - Y;}
  206. for (j = Y; j < Y + Height; j ++) //遍历指定页
  207. {
  208. for (i = X; i < X + Width; i ++) //遍历指定列
  209. {
  210. OLED_DisplayBuf[j / 8][i] &= ~(0x01 << (j % 8)); //将显存数组指定数据清零
  211. }
  212. }
  213. }
  214. /**
  215. * 函 数:OLED显示字符串
  216. * 参 数:X 指定字符串左上角的横坐标,范围:0~127
  217. * 参 数:Y 指定字符串左上角的纵坐标,范围:0~63
  218. * 参 数:String 指定要显示的字符串,范围:ASCII码可见字符组成的字符串
  219. * 参 数:FontSize 指定字体大小
  220. * 范围:OLED_8X16 宽8像素,高16像素
  221. * OLED_6X8 宽6像素,高8像素
  222. * 返 回 值:无
  223. * 说 明:调用此函数后,要想真正地呈现在屏幕上,还需调用更新函数
  224. */
  225. void oledShowString(uint8_t X, uint8_t Y, char *String, uint8_t FontSize)
  226. {
  227. uint8_t i;
  228. for (i = 0; String[i] != '\0'; i++) //遍历字符串的每个字符
  229. {
  230. /*调用OLED_ShowChar函数,依次显示每个字符*/
  231. oledShowChar(X + i * FontSize, Y, String[i], FontSize);
  232. }
  233. }

oled.h

  1. #ifndef __OLED_H
  2. #define __OLED_H
  3. #include "sys.h"
  4. /*FontSize参数取值*/
  5. /*此参数值不仅用于判断,而且用于计算横向字符偏移,默认值为字体像素宽度*/
  6. #define OLED_8X16 8
  7. #define OLED_6X8 6
  8. void oledInit();
  9. void oledClear(void);
  10. void oledUpdate(void);
  11. void oledSetCursor(u8 Page,u8 X);
  12. void oledClearArea(uint8_t X, uint8_t Y, uint8_t Width, uint8_t Height);
  13. void oledShowChar(u8 X,u8 Y,char Char, u8 FontSize);
  14. void oledShowImage(uint8_t X, uint8_t Y, uint8_t Width, uint8_t Height, const uint8_t *Image);
  15. void oledShowString(uint8_t X, uint8_t Y, char *String, uint8_t FontSize);
  16. #endif

字库文件

font.c

  1. #include "font.h"
  2. /*ASCII字模数据*********************/
  3. /*宽8像素,高16像素*/
  4. const uint8_t OLED_F8x16[][16] =
  5. {
  6. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  7. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
  8. 0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,
  9. 0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,// ! 1
  10. 0x00,0x16,0x0E,0x00,0x16,0x0E,0x00,0x00,
  11. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// " 2
  12. 0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,
  13. 0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,// # 3
  14. 0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,
  15. 0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,// $ 4
  16. 0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,
  17. 0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,// % 5
  18. 0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,
  19. 0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,// & 6
  20. 0x00,0x00,0x00,0x16,0x0E,0x00,0x00,0x00,
  21. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// ' 7
  22. 0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,
  23. 0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,// ( 8
  24. 0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,
  25. 0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,// ) 9
  26. 0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,
  27. 0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,// * 10
  28. 0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,
  29. 0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,// + 11
  30. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  31. 0x00,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,// , 12
  32. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  33. 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,// - 13
  34. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  35. 0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,// . 14
  36. 0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,
  37. 0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,// / 15
  38. 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
  39. 0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,// 0 16
  40. 0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,
  41. 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,// 1 17
  42. 0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,
  43. 0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,// 2 18
  44. 0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,
  45. 0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,// 3 19
  46. 0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,
  47. 0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,// 4 20
  48. 0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,
  49. 0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,// 5 21
  50. 0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,
  51. 0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,// 6 22
  52. 0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,
  53. 0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,// 7 23
  54. 0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,
  55. 0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,// 8 24
  56. 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
  57. 0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,// 9 25
  58. 0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,
  59. 0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,// : 26
  60. 0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,
  61. 0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,// ; 27
  62. 0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,
  63. 0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,// < 28
  64. 0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,
  65. 0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,// = 29
  66. 0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,
  67. 0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,// > 30
  68. 0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,
  69. 0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,// ? 31
  70. 0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,
  71. 0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,// @ 32
  72. 0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,
  73. 0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,// A 33
  74. 0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,
  75. 0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,// B 34
  76. 0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,
  77. 0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,// C 35
  78. 0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,
  79. 0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,// D 36
  80. 0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
  81. 0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,// E 37
  82. 0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
  83. 0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,// F 38
  84. 0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,
  85. 0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,// G 39
  86. 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
  87. 0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,// H 40
  88. 0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,
  89. 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,// I 41
  90. 0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,
  91. 0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,// J 42
  92. 0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,
  93. 0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,// K 43
  94. 0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,
  95. 0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,// L 44
  96. 0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,
  97. 0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,// M 45
  98. 0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,
  99. 0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,// N 46
  100. 0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
  101. 0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,// O 47
  102. 0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,
  103. 0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,// P 48
  104. 0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
  105. 0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,// Q 49
  106. 0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,
  107. 0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,// R 50
  108. 0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,
  109. 0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,// S 51
  110. 0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,
  111. 0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,// T 52
  112. 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
  113. 0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,// U 53
  114. 0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,
  115. 0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,// V 54
  116. 0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,
  117. 0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,// W 55
  118. 0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,
  119. 0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,// X 56
  120. 0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,
  121. 0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,// Y 57
  122. 0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,
  123. 0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,// Z 58
  124. 0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,
  125. 0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,// [ 59
  126. 0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,
  127. 0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,// \ 60
  128. 0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,
  129. 0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,// ] 61
  130. 0x00,0x20,0x10,0x08,0x04,0x08,0x10,0x20,
  131. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// ^ 62
  132. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  133. 0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,// _ 63
  134. 0x00,0x02,0x04,0x08,0x00,0x00,0x00,0x00,
  135. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// ` 64
  136. 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
  137. 0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,// a 65
  138. 0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,
  139. 0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,// b 66
  140. 0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,
  141. 0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,// c 67
  142. 0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,
  143. 0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,// d 68
  144. 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
  145. 0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,// e 69
  146. 0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,
  147. 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,// f 70
  148. 0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
  149. 0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,// g 71
  150. 0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,
  151. 0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,// h 72
  152. 0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,
  153. 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,// i 73
  154. 0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,
  155. 0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,// j 74
  156. 0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,
  157. 0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,// k 75
  158. 0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,
  159. 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,// l 76
  160. 0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
  161. 0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,// m 77
  162. 0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x00,
  163. 0x00,0x20,0x3F,0x21,0x00,0x20,0x3F,0x20,// n 78
  164. 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
  165. 0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,// o 79
  166. 0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,
  167. 0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,// p 80
  168. 0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,
  169. 0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,// q 81
  170. 0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
  171. 0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,// r 82
  172. 0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
  173. 0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,// s 83
  174. 0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,
  175. 0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,// t 84
  176. 0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,
  177. 0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,// u 85
  178. 0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
  179. 0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,// v 86
  180. 0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,
  181. 0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,// w 87
  182. 0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
  183. 0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,// x 88
  184. 0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
  185. 0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,// y 89
  186. 0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
  187. 0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,// z 90
  188. 0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,
  189. 0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,// { 91
  190. 0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,
  191. 0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,// | 92
  192. 0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,
  193. 0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,// } 93
  194. 0x00,0x80,0x40,0x40,0x80,0x00,0x00,0x80,
  195. 0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x00,// ~ 94
  196. };
  197. /*宽6像素,高8像素*/
  198. const uint8_t OLED_F6x8[][6] =
  199. {
  200. 0x00,0x00,0x00,0x00,0x00,0x00,// 0
  201. 0x00,0x00,0x00,0x2F,0x00,0x00,// ! 1
  202. 0x00,0x00,0x07,0x00,0x07,0x00,// " 2
  203. 0x00,0x14,0x7F,0x14,0x7F,0x14,// # 3
  204. 0x00,0x24,0x2A,0x7F,0x2A,0x12,// $ 4
  205. 0x00,0x23,0x13,0x08,0x64,0x62,// % 5
  206. 0x00,0x36,0x49,0x55,0x22,0x50,// & 6
  207. 0x00,0x00,0x00,0x07,0x00,0x00,// ' 7
  208. 0x00,0x00,0x1C,0x22,0x41,0x00,// ( 8
  209. 0x00,0x00,0x41,0x22,0x1C,0x00,// ) 9
  210. 0x00,0x14,0x08,0x3E,0x08,0x14,// * 10
  211. 0x00,0x08,0x08,0x3E,0x08,0x08,// + 11
  212. 0x00,0x00,0x00,0xA0,0x60,0x00,// , 12
  213. 0x00,0x08,0x08,0x08,0x08,0x08,// - 13
  214. 0x00,0x00,0x60,0x60,0x00,0x00,// . 14
  215. 0x00,0x20,0x10,0x08,0x04,0x02,// / 15
  216. 0x00,0x3E,0x51,0x49,0x45,0x3E,// 0 16
  217. 0x00,0x00,0x42,0x7F,0x40,0x00,// 1 17
  218. 0x00,0x42,0x61,0x51,0x49,0x46,// 2 18
  219. 0x00,0x21,0x41,0x45,0x4B,0x31,// 3 19
  220. 0x00,0x18,0x14,0x12,0x7F,0x10,// 4 20
  221. 0x00,0x27,0x45,0x45,0x45,0x39,// 5 21
  222. 0x00,0x3C,0x4A,0x49,0x49,0x30,// 6 22
  223. 0x00,0x01,0x71,0x09,0x05,0x03,// 7 23
  224. 0x00,0x36,0x49,0x49,0x49,0x36,// 8 24
  225. 0x00,0x06,0x49,0x49,0x29,0x1E,// 9 25
  226. 0x00,0x00,0x36,0x36,0x00,0x00,// : 26
  227. 0x00,0x00,0x56,0x36,0x00,0x00,// ; 27
  228. 0x00,0x08,0x14,0x22,0x41,0x00,// < 28
  229. 0x00,0x14,0x14,0x14,0x14,0x14,// = 29
  230. 0x00,0x00,0x41,0x22,0x14,0x08,// > 30
  231. 0x00,0x02,0x01,0x51,0x09,0x06,// ? 31
  232. 0x00,0x3E,0x49,0x55,0x59,0x2E,// @ 32
  233. 0x00,0x7C,0x12,0x11,0x12,0x7C,// A 33
  234. 0x00,0x7F,0x49,0x49,0x49,0x36,// B 34
  235. 0x00,0x3E,0x41,0x41,0x41,0x22,// C 35
  236. 0x00,0x7F,0x41,0x41,0x22,0x1C,// D 36
  237. 0x00,0x7F,0x49,0x49,0x49,0x41,// E 37
  238. 0x00,0x7F,0x09,0x09,0x09,0x01,// F 38
  239. 0x00,0x3E,0x41,0x49,0x49,0x7A,// G 39
  240. 0x00,0x7F,0x08,0x08,0x08,0x7F,// H 40
  241. 0x00,0x00,0x41,0x7F,0x41,0x00,// I 41
  242. 0x00,0x20,0x40,0x41,0x3F,0x01,// J 42
  243. 0x00,0x7F,0x08,0x14,0x22,0x41,// K 43
  244. 0x00,0x7F,0x40,0x40,0x40,0x40,// L 44
  245. 0x00,0x7F,0x02,0x0C,0x02,0x7F,// M 45
  246. 0x00,0x7F,0x04,0x08,0x10,0x7F,// N 46
  247. 0x00,0x3E,0x41,0x41,0x41,0x3E,// O 47
  248. 0x00,0x7F,0x09,0x09,0x09,0x06,// P 48
  249. 0x00,0x3E,0x41,0x51,0x21,0x5E,// Q 49
  250. 0x00,0x7F,0x09,0x19,0x29,0x46,// R 50
  251. 0x00,0x46,0x49,0x49,0x49,0x31,// S 51
  252. 0x00,0x01,0x01,0x7F,0x01,0x01,// T 52
  253. 0x00,0x3F,0x40,0x40,0x40,0x3F,// U 53
  254. 0x00,0x1F,0x20,0x40,0x20,0x1F,// V 54
  255. 0x00,0x3F,0x40,0x38,0x40,0x3F,// W 55
  256. 0x00,0x63,0x14,0x08,0x14,0x63,// X 56
  257. 0x00,0x07,0x08,0x70,0x08,0x07,// Y 57
  258. 0x00,0x61,0x51,0x49,0x45,0x43,// Z 58
  259. 0x00,0x00,0x7F,0x41,0x41,0x00,// [ 59
  260. 0x00,0x02,0x04,0x08,0x10,0x20,// \ 60
  261. 0x00,0x00,0x41,0x41,0x7F,0x00,// ] 61
  262. 0x00,0x04,0x02,0x01,0x02,0x04,// ^ 62
  263. 0x00,0x40,0x40,0x40,0x40,0x40,// _ 63
  264. 0x00,0x00,0x01,0x02,0x04,0x00,// ` 64
  265. 0x00,0x20,0x54,0x54,0x54,0x78,// a 65
  266. 0x00,0x7F,0x48,0x44,0x44,0x38,// b 66
  267. 0x00,0x38,0x44,0x44,0x44,0x20,// c 67
  268. 0x00,0x38,0x44,0x44,0x48,0x7F,// d 68
  269. 0x00,0x38,0x54,0x54,0x54,0x18,// e 69
  270. 0x00,0x08,0x7E,0x09,0x01,0x02,// f 70
  271. 0x00,0x18,0xA4,0xA4,0xA4,0x7C,// g 71
  272. 0x00,0x7F,0x08,0x04,0x04,0x78,// h 72
  273. 0x00,0x00,0x44,0x7D,0x40,0x00,// i 73
  274. 0x00,0x40,0x80,0x84,0x7D,0x00,// j 74
  275. 0x00,0x7F,0x10,0x28,0x44,0x00,// k 75
  276. 0x00,0x00,0x41,0x7F,0x40,0x00,// l 76
  277. 0x00,0x7C,0x04,0x18,0x04,0x78,// m 77
  278. 0x00,0x7C,0x08,0x04,0x04,0x78,// n 78
  279. 0x00,0x38,0x44,0x44,0x44,0x38,// o 79
  280. 0x00,0xFC,0x24,0x24,0x24,0x18,// p 80
  281. 0x00,0x18,0x24,0x24,0x18,0xFC,// q 81
  282. 0x00,0x7C,0x08,0x04,0x04,0x08,// r 82
  283. 0x00,0x48,0x54,0x54,0x54,0x20,// s 83
  284. 0x00,0x04,0x3F,0x44,0x40,0x20,// t 84
  285. 0x00,0x3C,0x40,0x40,0x20,0x7C,// u 85
  286. 0x00,0x1C,0x20,0x40,0x20,0x1C,// v 86
  287. 0x00,0x3C,0x40,0x30,0x40,0x3C,// w 87
  288. 0x00,0x44,0x28,0x10,0x28,0x44,// x 88
  289. 0x00,0x1C,0xA0,0xA0,0xA0,0x7C,// y 89
  290. 0x00,0x44,0x64,0x54,0x4C,0x44,// z 90
  291. 0x00,0x00,0x08,0x7F,0x41,0x00,// { 91
  292. 0x00,0x00,0x00,0x7F,0x00,0x00,// | 92
  293. 0x00,0x00,0x41,0x7F,0x08,0x00,// } 93
  294. 0x00,0x08,0x04,0x08,0x10,0x08,// ~ 94
  295. };
  296. /*********************ASCII字模数据*/

font.h

  1. #ifndef __FONT_H
  2. #define __FONT_H
  3. #include "sys.h"
  4. /*ASCII字模数据声明*/
  5. extern const uint8_t OLED_F8x16[][16];
  6. extern const uint8_t OLED_F6x8[][6];
  7. #endif

main.c

  1. #include "stm32f10x.h"
  2. #include "led.h"
  3. #include "oled.h"
  4. #include "delay.h"
  5. int main(void)
  6. { int i=0;
  7. delay_init();//延时函数初始化
  8. oledInit();//oled初始化
  9. oledShowChar(0,0,'A',OLED_8X16);//(0,0)位置开始写A,字号为OLED_8X16
  10. oledShowString(0,16,"hello world",OLED_8X16);//(0,16)位置输出hello world,字号为OLED_8X16
  11. oledUpdate();//更新显存,刷新实际显示
  12. while(1)
  13. {
  14. i++;
  15. if(i==26) i=0;
  16. oledShowChar(0,0,'A'+i,OLED_8X16);//(0,0)位置循环显示A-Z,字号为OLED_8X16
  17. oledUpdate();//更新显存,刷新实际显示
  18. delay_ms(500);
  19. }
  20. }

问题总结

1.SCL一直是主机控制吗

是的

2.读数据时,为什么不直接读数据呢,而是先通过写命令找到寄存器,再发送读命令

通信协议规定,理论上应该也可以这么做

3.主机(单片机)选择IO口电路原理图并没有外接上拉电阻

一般外接模块内部接了上拉电阻,所以stm32这边不用加

4.为什么再iic读写后加了正点原子的延时函数就无法正常通信

延时函数没有初始化

实际效果

0.96寸iic接口oled显示

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