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32单片机基础：OLED调试工具的使用
下面会介绍OLED显示屏的驱动函数模块，先学会如何使用，至于OLED屏幕的原理和代码编写，
我们之后会再写一篇。
现在我们就是用OLED当一个调试的显示屏，方便我们调试程序。
为什么要调试呢，是为了方便我们看现象，从而判断代码的正误。
单片机编程而言，经常遇到一个很大的问题，就是程序调试。但是单片机不像电脑，电脑有很大的屏幕，想看什么变量，参数，直接打印到屏幕就可以了。但是单片机不一样，很多时候由于成本和电路结构的限制。它并不会有一个像电脑屏幕那样强大的显示屏，这就对我们调试造成了困难，
比如让你学习C语言，但是不允许使用printf这个打印函数，那你想一下，C语言是不是根本没法学，同样，给你一个单片机，但是没有任何显示参数的东西，那你也没法学单片机。
我们先来看看程序调试有哪些方法：
当然串口调试和显示屏调试 也是各有利弊。串口的优势是可以借助强大的电脑，电脑端的软件，不仅可以显示单独的参数，而且可以显示曲线，图形，图像等。弊端就是需要拖着电脑。而且通常的串口助手只能以信息流的方式呈现数据，只能一行一行的打印，如果有很多不断变化的数据要显示，那就只能在电脑上刷屏显示，这样用起来不太方便
显示屏调试的优势是对于不断变化的数据，可以覆盖刷新显示。而且显示屏可以始终接在单片机上显示方式很直接。还有我们做一些稍微复杂的东西，都会需要一个人机交互界面。这样就可以直接把显示屏当做产品的一部分还是比较好用的。显示屏的弊端就是屏幕太小，显示内容有限，没有电脑软件强大的功能
所以这两种方法各有各的适用场景，需要根据实际情况选择合适的方法。
除了这三种调试方法，还有很多种程序的调试方法
OLED介绍：
左边四引脚SCL和SDA是I2C的通信引脚需要接到I2C通信引脚上，
我下面给的驱动函数模块是GPIO口模拟的I2C通信。所以这两个端口就可以接在任意的GPIO端口上，
右边7引脚是SPI通信协议的引脚，如果是GPIO口模拟的通信协议，就可以接在任意的GPIO端口上，
下面看看驱动函数模块有哪些东西吧：
根据上述接线图，PB6,PB7为0或1，因为OLED要接0和1， 正好影响到了，不过这个也是没关系的，我们直接不初始化这两个引脚就行了，如果STM32的引脚上电后，如果不初始化，默认是浮空输入模式。在这个模式下，引脚不会输出电平，所以不会有什么影响。当然，也可以不接上面PB6,7这两个跳线，直接PB6输出低电平，PB7输出高电平。用GPIO口直接给OLED供电，这个也是没有问题的，因为OLED功率很小，所以可以驱动。但是用GPIO口供电不是很规范。
下面是OLED显示的三个代码文件：
OLED.c
- #include "stm32f10x.h"
- #include "OLED_Font.h"
- /*引脚配置*/
- #define OLED_W_SCL(x) GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
- #define OLED_W_SDA(x) GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))
- /*引脚初始化*/
- void OLED_I2C_Init(void)
- {
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
- GPIO_InitTypeDef GPIO_InitStructure;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
- OLED_W_SCL(1);
- OLED_W_SDA(1);
- }
- /**
- * @brief I2C开始
- * @param 无
- * @retval 无
- */
- void OLED_I2C_Start(void)
- {
- OLED_W_SDA(1);
- OLED_W_SCL(1);
- OLED_W_SDA(0);
- OLED_W_SCL(0);
- }
- /**
- * @brief I2C停止
- * @param 无
- * @retval 无
- */
- void OLED_I2C_Stop(void)
- {
- OLED_W_SDA(0);
- OLED_W_SCL(1);
- OLED_W_SDA(1);
- }
- /**
- * @brief I2C发送一个字节
- * @param Byte 要发送的一个字节
- * @retval 无
- */
- void OLED_I2C_SendByte(uint8_t Byte)
- {
- uint8_t i;
- for (i = 0; i < 8; i++)
- {
- OLED_W_SDA(Byte & (0x80 >> i));
- OLED_W_SCL(1);
- OLED_W_SCL(0);
- }
- OLED_W_SCL(1); //额外的一个时钟，不处理应答信号
- OLED_W_SCL(0);
- }
- /**
- * @brief OLED写命令
- * @param Command 要写入的命令
- * @retval 无
- */
- void OLED_WriteCommand(uint8_t Command)
- {
- OLED_I2C_Start();
- OLED_I2C_SendByte(0x78); //从机地址
- OLED_I2C_SendByte(0x00); //写命令
- OLED_I2C_SendByte(Command);
- OLED_I2C_Stop();
- }
- /**
- * @brief OLED写数据
- * @param Data 要写入的数据
- * @retval 无
- */
- void OLED_WriteData(uint8_t Data)
- {
- OLED_I2C_Start();
- OLED_I2C_SendByte(0x78); //从机地址
- OLED_I2C_SendByte(0x40); //写数据
- OLED_I2C_SendByte(Data);
- OLED_I2C_Stop();
- }
- /**
- * @brief OLED设置光标位置
- * @param Y 以左上角为原点，向下方向的坐标，范围：0~7
- * @param X 以左上角为原点，向右方向的坐标，范围：0~127
- * @retval 无
- */
- void OLED_SetCursor(uint8_t Y, uint8_t X)
- {
- OLED_WriteCommand(0xB0 | Y); //设置Y位置
- OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4)); //设置X位置高4位
- OLED_WriteCommand(0x00 | (X & 0x0F)); //设置X位置低4位
- }
- /**
- * @brief OLED清屏
- * @param 无
- * @retval 无
- */
- void OLED_Clear(void)
- {
- uint8_t i, j;
- for (j = 0; j < 8; j++)
- {
- OLED_SetCursor(j, 0);
- for(i = 0; i < 128; i++)
- {
- OLED_WriteData(0x00);
- }
- }
- }
- /**
- * @brief OLED显示一个字符
- * @param Line 行位置，范围：1~4
- * @param Column 列位置，范围：1~16
- * @param Char 要显示的一个字符，范围：ASCII可见字符
- * @retval 无
- */
- void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
- {
- uint8_t i;
- OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8); //设置光标位置在上半部分
- for (i = 0; i < 8; i++)
- {
- OLED_WriteData(OLED_F8x16[Char - ' '][i]); //显示上半部分内容
- }
- OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8); //设置光标位置在下半部分
- for (i = 0; i < 8; i++)
- {
- OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]); //显示下半部分内容
- }
- }
- /**
- * @brief OLED显示字符串
- * @param Line 起始行位置，范围：1~4
- * @param Column 起始列位置，范围：1~16
- * @param String 要显示的字符串，范围：ASCII可见字符
- * @retval 无
- */
- void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
- {
- uint8_t i;
- for (i = 0; String[i] != '\0'; i++)
- {
- OLED_ShowChar(Line, Column + i, String[i]);
- }
- }
- /**
- * @brief OLED次方函数
- * @retval 返回值等于X的Y次方
- */
- uint32_t OLED_Pow(uint32_t X, uint32_t Y)
- {
- uint32_t Result = 1;
- while (Y--)
- {
- Result *= X;
- }
- return Result;
- }
- /**
- * @brief OLED显示数字（十进制，正数）
- * @param Line 起始行位置，范围：1~4
- * @param Column 起始列位置，范围：1~16
- * @param Number 要显示的数字，范围：0~4294967295
- * @param Length 要显示数字的长度，范围：1~10
- * @retval 无
- */
- void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
- {
- uint8_t i;
- for (i = 0; i < Length; i++)
- {
- OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0');
- }
- }
- /**
- * @brief OLED显示数字（十进制，带符号数）
- * @param Line 起始行位置，范围：1~4
- * @param Column 起始列位置，范围：1~16
- * @param Number 要显示的数字，范围：-2147483648~2147483647
- * @param Length 要显示数字的长度，范围：1~10
- * @retval 无
- */
- void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
- {
- uint8_t i;
- uint32_t Number1;
- if (Number >= 0)
- {
- OLED_ShowChar(Line, Column, '+');
- Number1 = Number;
- }
- else
- {
- OLED_ShowChar(Line, Column, '-');
- Number1 = -Number;
- }
- for (i = 0; i < Length; i++)
- {
- OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0');
- }
- }
- /**
- * @brief OLED显示数字（十六进制，正数）
- * @param Line 起始行位置，范围：1~4
- * @param Column 起始列位置，范围：1~16
- * @param Number 要显示的数字，范围：0~0xFFFFFFFF
- * @param Length 要显示数字的长度，范围：1~8
- * @retval 无
- */
- void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
- {
- uint8_t i, SingleNumber;
- for (i = 0; i < Length; i++)
- {
- SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16;
- if (SingleNumber < 10)
- {
- OLED_ShowChar(Line, Column + i, SingleNumber + '0');
- }
- else
- {
- OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A');
- }
- }
- }
- /**
- * @brief OLED显示数字（二进制，正数）
- * @param Line 起始行位置，范围：1~4
- * @param Column 起始列位置，范围：1~16
- * @param Number 要显示的数字，范围：0~1111 1111 1111 1111
- * @param Length 要显示数字的长度，范围：1~16
- * @retval 无
- */
- void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
- {
- uint8_t i;
- for (i = 0; i < Length; i++)
- {
- OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0');
- }
- }
- /**
- * @brief OLED初始化
- * @param 无
- * @retval 无
- */
- void OLED_Init(void)
- {
- uint32_t i, j;
- for (i = 0; i < 1000; i++) //上电延时
- {
- for (j = 0; j < 1000; j++);
- }
- OLED_I2C_Init(); //端口初始化
- OLED_WriteCommand(0xAE); //关闭显示
- OLED_WriteCommand(0xD5); //设置显示时钟分频比/振荡器频率
- OLED_WriteCommand(0x80);
- OLED_WriteCommand(0xA8); //设置多路复用率
- OLED_WriteCommand(0x3F);
- OLED_WriteCommand(0xD3); //设置显示偏移
- OLED_WriteCommand(0x00);
- OLED_WriteCommand(0x40); //设置显示开始行
- OLED_WriteCommand(0xA1); //设置左右方向，0xA1正常 0xA0左右反置
- OLED_WriteCommand(0xC8); //设置上下方向，0xC8正常 0xC0上下反置
- OLED_WriteCommand(0xDA); //设置COM引脚硬件配置
- OLED_WriteCommand(0x12);
- OLED_WriteCommand(0x81); //设置对比度控制
- OLED_WriteCommand(0xCF);
- OLED_WriteCommand(0xD9); //设置预充电周期
- OLED_WriteCommand(0xF1);
- OLED_WriteCommand(0xDB); //设置VCOMH取消选择级别
- OLED_WriteCommand(0x30);
- OLED_WriteCommand(0xA4); //设置整个显示打开/关闭
- OLED_WriteCommand(0xA6); //设置正常/倒转显示
- OLED_WriteCommand(0x8D); //设置充电泵
- OLED_WriteCommand(0x14);
- OLED_WriteCommand(0xAF); //开启显示
- OLED_Clear(); //OLED清屏
- }
一般都是不太需要改，如果你SCK与SDA 接在不是上述引脚上的话，就可以更改上述参数里面的值，你接在哪一个引脚，就改为你接的那个引脚。同时更改下图所示位置
OLED.h
- #ifndef __OLED_H
- #define __OLED_H
- void OLED_Init(void);
- void OLED_Clear(void);
- void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char);
- void OLED_ShowString(uint8_t Line, uint8_t Column, char *String);
- void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
- void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length);
- void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
- void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
- #endif
OLED.Font.h
这里存的是OLED的字库数据，因为OLED显示屏是不带字库的，想要显示字符图形还要先定义字符的点阵数据，下面就是这些字符的点阵数据，也就是字库。OLED.c文件会用到这些字库，当然这些字库都是不用修改的。
- #ifndef __OLED_FONT_H
- #define __OLED_FONT_H
- /*OLED字模库，宽8像素，高16像素*/
- const uint8_t OLED_F8x16[][16]=
- {
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
- 0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
- 0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
- 0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,
- 0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
- 0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,
- 0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
- 0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,
- 0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
- 0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,
- 0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
- 0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
- 0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,
- 0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
- 0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,
- 0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
- 0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,
- 0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
- 0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,
- 0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
- 0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,
- 0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
- 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
- 0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
- 0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,
- 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
- 0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,
- 0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
- 0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,
- 0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
- 0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,
- 0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
- 0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,
- 0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
- 0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,
- 0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
- 0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,
- 0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
- 0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,
- 0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
- 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
- 0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
- 0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
- 0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
- 0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,
- 0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
- 0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,
- 0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
- 0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,
- 0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
- 0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,
- 0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
- 0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,
- 0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
- 0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,
- 0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
- 0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,
- 0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
- 0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,
- 0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
- 0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,
- 0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
- 0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
- 0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
- 0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
- 0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
- 0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,
- 0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
- 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
- 0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
- 0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,
- 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
- 0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,
- 0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
- 0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,
- 0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
- 0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,
- 0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
- 0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,
- 0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
- 0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,
- 0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
- 0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
- 0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
- 0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,
- 0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
- 0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
- 0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
- 0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,
- 0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
- 0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,
- 0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
- 0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,
- 0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
- 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
- 0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
- 0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,
- 0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
- 0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,
- 0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
- 0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,
- 0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
- 0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,
- 0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
- 0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,
- 0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
- 0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,
- 0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
- 0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
- 0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,
- 0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
- 0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
- 0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
- 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
- 0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
- 0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,
- 0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
- 0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,
- 0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
- 0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,
- 0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
- 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
- 0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
- 0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,
- 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
- 0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
- 0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
- 0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,
- 0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
- 0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,
- 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
- 0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,
- 0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
- 0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,
- 0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
- 0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,
- 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
- 0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
- 0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
- 0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,
- 0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
- 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
- 0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
- 0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,
- 0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
- 0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,
- 0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
- 0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
- 0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
- 0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
- 0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
- 0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,
- 0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
- 0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,
- 0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
- 0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
- 0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
- 0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,
- 0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
- 0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
- 0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
- 0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
- 0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
- 0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
- 0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
- 0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,
- 0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
- 0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
- 0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,
- 0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
- 0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
- };
- #endif
在之前建立的文件夹Hardware中建立三个文件，如下图所示
main.c
- #include "stm32f10x.h" // Device header
- #include "Delay.h"
- #include "OLED.h"
- int main()
- {
- OLED_Init();
- OLED_ShowChar(1,1,'A');
- OLED_ShowString(1,3,"HelloWord!");
- OLED_ShowNum(2,1,12345,5);//4位比12345短，把高位切掉,2345
- //OLED_ShowNum(2,1,12345,6);//6位比12345长，会在前面补0,012345
- //OLED_ShowNum(2,1,12345,4);//4位比12345短，把高位切掉,2345
- //OLED_ShowSignedNum(2,7,12345,5);//有符号10进制数字 +12345
- OLED_ShowSignedNum(2,7,-66,2);
- OLED_ShowHexNum(3,1,0xAA55,4);//显示16进制数字
- OLED_ShowBinNum(4,1,0xAA55,16);//显示二进制数,但是C语言不能直接写二进制数，我们用16进制代替
- OLED_Clear();//清除屏幕
- while(1)
- {
- }
- }
不用OLED_Clear可以用 OLED_ShowString（1,1，“ ”），加空格就OK了。
-
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- 原文地址：https://blog.csdn.net/weixin_64484421/article/details/136216675
