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   -> 嵌入式 -> STM32F407霸天虎HAL库学习笔记——通过I2C驱动OLED -> 正文阅读

[嵌入式]STM32F407霸天虎HAL库学习笔记——通过I2C驱动OLED

I2C知识概述

本次实验是使用I2C驱动0.9寸OLED屏幕,这里补充一下I2C通信的一些基础知识,先看一下物理层面上,I2C使用了两条总线SCL(串行时钟线)SDA(串行数据线)来进行通信,且I2C有三种传输模式:标准传输模式(100kbit/s)快速传输模式(400kbit/s)高速传输模式(3.4M/s),但是多数设备不支持高速传输模式,本次我使用到了快速传输模式。
在这里插入图片描述
在上面的图中可以看出在一个 I2C 通讯总线中,可连接多个 I2C 通讯设备,支持多个通讯主机及多个通讯从机。

起始信号与停止信号,当 SCL 线是高电平时 SDA线从高电平向低电平切换,这个情况表示通讯的起始。当 SCL 是高电平时 SDA 线由低电平向高电平切换,表示通讯的停止。
在这里插入图片描述
SDA 数据线在SCL 的每个时钟周期传输一位数据。传输时,SCL 为高电平的时候 SDA 表示的数据有效,即此时的 SDA 为高电平时表示数据“1”,为低电平时表示数据“0”。当 SCL 为低电平时,SDA 的数
据无效,一般在这个时候 SDA 进行电平切换,为下一次表示数据做好准备。
在这里插入图片描述
I2C分有软件模拟I2C和硬件I2C:

软件模拟I2C:软件IIC通信指的是用单片机的两个I/O端口模拟出来的IIC,用软件控制管脚状态以模拟I2C通信波形,软件模拟寄存器的工作方式。
硬件I2C:一块硬件电路,硬件I2C对应芯片上的I2C外设,有相应I2C驱动电路,其所使用的I2C管脚也是专用的,硬件I2C是直接调用内部寄存器。

所以选择硬件I2C效率更高,本次实验用的是硬件I2C

一、软件准备

软件准备

二、硬件准备

STM32F407霸天虎
DAP高速下载器
USB转串口线
0.9寸OLED屏幕
在这里插入图片描述

三、CubeMX配置

STM32F407霸天虎用的是STM32F407ZGT6
在这里插入图片描述
选择外部高速时钟
在这里插入图片描述

在这里插入图片描述
I2C选择I2C1,将OLED屏幕的SDA、SCL通过杜邦线连接到开发板对应的I2C引脚上
在这里插入图片描述
时钟树选择168MHz,具体配置方法见上篇的时钟树配置
在这里插入图片描述
而后根据自己的喜好编辑工程的名称,存放位置,IDE选择ARM-MDKV5
在这里插入图片描述
在这里插入图片描述

四、Keil

由于我们的Debug用的是DAP,如图下选择Debug和下载配置
在这里插入图片描述
接下来在工程列表里新建一个工程文件夹,以及新建OLED.c文件、OLED.h和font.h文件,并将oled.c文件添加进工程文件夹中。
在这里插入图片描述

oled.h

#ifndef __OLED_H
#define __OLED_H

#include "main.h"

//根据I2C所在引脚进行宏定义,方便后续操作
#define   GPIOx_OLED_PORT               GPIOB
#define   OLED_SCK_PIN                  GPIO_PIN_6
#define   OLED_SCK_ON()                 HAL_GPIO_WritePin(GPIOx_OLED_PORT, OLED_SCK_PIN, GPIO_PIN_SET)
#define   OLED_SCK_OFF()                HAL_GPIO_WritePin(GPIOx_OLED_PORT, OLED_SCK_PIN, GPIO_PIN_RESET)
#define   OLED_SCK_TOGGLE()             HAL_GPIO_TogglePin(GPIOx_OLED_PORT, OLED_SCK_PIN)
#define   OLED_SDA_PIN                  GPIO_PIN_7
#define   OLED_SDA_ON()                 HAL_GPIO_WritePin(GPIOx_OLED_PORT, OLED_SDA_PIN, GPIO_PIN_SET)
#define   OLED_SDA_OFF()                HAL_GPIO_WritePin(GPIOx_OLED_PORT, OLED_SDA_PIN, GPIO_PIN_RESET)
#define   OLED_SDA_TOGGLE()             HAL_GPIO_TogglePin(GPIOx_OLED_PORT, OLED_SDA_PIN)
///

void WriteCmd(void);
void OLED_WR_CMD(uint8_t cmd);
void OLED_WR_DATA(uint8_t data);
void OLED_Init(void);
void OLED_Clear(void);
void OLED_Display_On(void);
void OLED_Display_Off(void);
void OLED_Set_Pos(uint8_t x, uint8_t y);
void OLED_On(void);
void OLED_ShowNum(uint8_t x,uint8_t y,unsigned int num,uint8_t len,uint8_t size2);
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size);
void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t Char_Size);
void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no);


#endif

oled.c

#include "oled.h"
#include "font.h"    
#include "i2c.h"

uint8_t CMD_Data[]={
0xAE, 0x00, 0x10, 0x40, 0xB0, 0x81, 0xFF, 0xA1, 0xA6, 0xA8, 0x3F,
					
0xC8, 0xD3, 0x00, 0xD5, 0x80, 0xD8, 0x05, 0xD9, 0xF1, 0xDA, 0x12,
					
0xD8, 0x30, 0x8D, 0x14, 0xAF};      //初始化命令
//显示浮点数
//x,y :起点坐标
//num:数值	 
//a:整数的位数
//b:小数的位数
//size:字体大小
void OLED_SHowfloat(uint8_t x,uint8_t y,float num,uint8_t a,uint8_t b,uint8_t size)
{
    if(num<0)
    {
        OLED_ShowChar(x,y,'-',size);
        x+=size/2;
        num=-num;
        
    OLED_ShowNum(x,y,num,a,16);
    OLED_ShowChar(x+a*(size/2),y,'.',16);
    for(int i=1;i<=b;i++)
        {
            OLED_ShowNum(x+(a+i)*(size/2),y,(uint16_t)(num*10)%10,1,size);
            num*=10;
        }
    }
    
    else
    {
    OLED_ShowNum(x,y,num,a,16);
    OLED_ShowChar(x+a*(size/2),y,'.',16);
    for(int i=1;i<=b;i++)
        {
            OLED_ShowNum(x+(a+i)*(size/2),y,(uint16_t)(num*10)%10,1,size);
            num*=10;
        }
    }
}
//通过I2C写入命令    
void WriteCmd(void)
{
	uint8_t i = 0;
	for(i=0; i<27; i++)
	{
		HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x00,I2C_MEMADD_SIZE_8BIT,CMD_Data+i,1,0x100);
	}
}
//向设备写控制命令
void OLED_WR_CMD(uint8_t cmd)
{
	HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x00,I2C_MEMADD_SIZE_8BIT,&cmd,1,0x100);    
}
//向设备写数据
void OLED_WR_DATA(uint8_t data)
{
	HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x40,I2C_MEMADD_SIZE_8BIT,&data,1,0x100);
}
//初始化oled屏幕
void OLED_Init(void)
{ 	
	HAL_Delay(200);
 
	WriteCmd();
}
//清屏
void OLED_Clear(void)
{
	uint8_t i,n;		    
	for(i=0;i<8;i++)  
	{  
		OLED_WR_CMD(0xb0+i);
		OLED_WR_CMD (0x00); 
		OLED_WR_CMD (0x10); 
		for(n=0;n<128;n++)
			OLED_WR_DATA(0);
	} 
}
//开启OLED显示    
void OLED_Display_On(void)
{
	OLED_WR_CMD(0X8D);  //SET DCDC命令
	OLED_WR_CMD(0X14);  //DCDC ON
	OLED_WR_CMD(0XAF);  //DISPLAY ON
}
//关闭OLED显示     
void OLED_Display_Off(void)
{
	OLED_WR_CMD(0X8D);  //SET DCDC命令
	OLED_WR_CMD(0X10);  //DCDC OFF
	OLED_WR_CMD(0XAE);  //DISPLAY OFF
}		   			 
void OLED_Set_Pos(uint8_t x, uint8_t y) 
{ 	
	OLED_WR_CMD(0xb0+y);
	OLED_WR_CMD(((x&0xf0)>>4)|0x10);
	OLED_WR_CMD(x&0x0f);
} 
 
void OLED_On(void)  
{  
	uint8_t i,n;		    
	for(i=0;i<8;i++)  
	{  
		OLED_WR_CMD(0xb0+i);    //设置页地址(0~7)
		OLED_WR_CMD(0x00);      //设置显示位置—列低地址
		OLED_WR_CMD(0x10);      //设置显示位置—列高地址   
		for(n=0;n<128;n++)
			OLED_WR_DATA(1); 
	} //更新显示
}
unsigned int oled_pow(uint8_t m,uint8_t n)
{
	unsigned int result=1;	 
	while(n--)result*=m;    
	return result;
}
//显示2个数字
//x,y :起点坐标	 
//len :数字的位数
//size:字体大小
//mode:模式	0,填充模式;1,叠加模式
//num:数值(0~4294967295);	 		  
void OLED_ShowNum(uint8_t x,uint8_t y,unsigned int num,uint8_t len,uint8_t size2)
{         	
	uint8_t t,temp;
	uint8_t enshow=0;						   
	for(t=0;t<len;t++)
	{
		temp=(num/oled_pow(10,len-t-1))%10;
		if(enshow==0&&t<(len-1))
		{
			if(temp==0)
			{
				OLED_ShowChar(x+(size2/2)*t,y,' ',size2);
				continue;
			}else enshow=1; 
		 	 
		}
	 	OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2); 
	}
} 
//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//mode:0,反白显示;1,正常显示				 
//size:选择字体 16/12 
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size)
{      	
	unsigned char c=0,i=0;	
		c=chr-' ';//得到偏移后的值			
		if(x>128-1){x=0;y=y+2;}
		if(Char_Size ==16)
			{
			OLED_Set_Pos(x,y);	
			for(i=0;i<8;i++)
			OLED_WR_DATA(F8X16[c*16+i]);
			OLED_Set_Pos(x,y+1);
			for(i=0;i<8;i++)
			OLED_WR_DATA(F8X16[c*16+i+8]);
			}
			else {	
				OLED_Set_Pos(x,y);
				for(i=0;i<6;i++)
				OLED_WR_DATA(F6x8[c][i]);
				
			}
}
 
//显示一个字符号串
void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t Char_Size)
{
	unsigned char j=0;
	while (chr[j]!='\0')
	{		OLED_ShowChar(x,y,chr[j],Char_Size);
			x+=8;
		if(x>120){x=0;y+=2;}
			j++;
	}
}
//显示汉字
//hzk 用取模软件得出的数组
void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no)
{      			    
	uint8_t t,adder=0;
	OLED_Set_Pos(x,y);	
    for(t=0;t<16;t++)
		{
				OLED_WR_DATA(Hzk[2*no][t]);
				adder+=1;
     }	
		OLED_Set_Pos(x,y+1);	
    for(t=0;t<16;t++)
			{	
				OLED_WR_DATA(Hzk[2*no+1][t]);
				adder+=1;
      }					
}

通过取字模软件生成字模,设置如下
在这里插入图片描述

在这里插入图片描述
接下来就可以编写font.h了

font.h

#ifndef __FONT_H
#define __FONT_H
 
#include "stm32f4xx_hal.h"

//8*6 ASCII字符集点阵
const unsigned char F6x8[][6] =		
{
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// sp
	0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,// !
	0x00, 0x00, 0x07, 0x00, 0x07, 0x00,// "
	0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,// #
	0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,// $
	0x00, 0x62, 0x64, 0x08, 0x13, 0x23,// %
	0x00, 0x36, 0x49, 0x55, 0x22, 0x50,// &
	0x00, 0x00, 0x05, 0x03, 0x00, 0x00,// '
	0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,// (
	0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,// )
	0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,// *
	0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,// +
	0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,// ,
	0x00, 0x08, 0x08, 0x08, 0x08, 0x08,// -
	0x00, 0x00, 0x60, 0x60, 0x00, 0x00,// .
	0x00, 0x20, 0x10, 0x08, 0x04, 0x02,// /
	0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
	0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
	0x00, 0x42, 0x61, 0x51, 0x49, 0x46,// 2
	0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
	0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
	0x00, 0x27, 0x45, 0x45, 0x45, 0x39,// 5
	0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
	0x00, 0x01, 0x71, 0x09, 0x05, 0x03,// 7
	0x00, 0x36, 0x49, 0x49, 0x49, 0x36,// 8
	0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
	0x00, 0x00, 0x36, 0x36, 0x00, 0x00,// :
	0x00, 0x00, 0x56, 0x36, 0x00, 0x00,// ;
	0x00, 0x08, 0x14, 0x22, 0x41, 0x00,// <
	0x00, 0x14, 0x14, 0x14, 0x14, 0x14,// =
	0x00, 0x00, 0x41, 0x22, 0x14, 0x08,// >
	0x00, 0x02, 0x01, 0x51, 0x09, 0x06,// ?
	0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,// @
	0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,// A
	0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,// B
	0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,// C
	0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
	0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,// E
	0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,// F
	0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,// G
	0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
	0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,// I
	0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,// J
	0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,// K
	0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,// L
	0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,// M
	0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
	0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
	0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,// P
	0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
	0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,// R
	0x00, 0x46, 0x49, 0x49, 0x49, 0x31,// S
	0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,// T
	0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
	0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
	0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,// W
	0x00, 0x63, 0x14, 0x08, 0x14, 0x63,// X
	0x00, 0x07, 0x08, 0x70, 0x08, 0x07,// Y
	0x00, 0x61, 0x51, 0x49, 0x45, 0x43,// Z
	0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,// [
	0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,// 55
	0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,// ]
	0x00, 0x04, 0x02, 0x01, 0x02, 0x04,// ^
	0x00, 0x40, 0x40, 0x40, 0x40, 0x40,// _
	0x00, 0x00, 0x01, 0x02, 0x04, 0x00,// '
	0x00, 0x20, 0x54, 0x54, 0x54, 0x78,// a
	0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,// b
	0x00, 0x38, 0x44, 0x44, 0x44, 0x20,// c
	0x00, 0x38, 0x44, 0x44, 0x48, 0x7F,// d
	0x00, 0x38, 0x54, 0x54, 0x54, 0x18,// e
	0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,// f
	0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,// g
	0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,// h
	0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,// i
	0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,// j
	0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,// k
	0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,// l
	0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,// m
	0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,// n
	0x00, 0x38, 0x44, 0x44, 0x44, 0x38,// o
	0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,// p
	0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,// q
	0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,// r
	0x00, 0x48, 0x54, 0x54, 0x54, 0x20,// s
	0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,// t
	0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
	0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
	0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
	0x00, 0x44, 0x28, 0x10, 0x28, 0x44,// x
	0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,// y
	0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,// z
	0x14, 0x14, 0x14, 0x14, 0x14, 0x14,// horiz lines
};

//16*8 ASCII字符集点阵
const unsigned char F8X16[]=
{
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//sp /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
 0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//}  /92
 0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00};//|  /93

//部分汉字
const unsigned char Hzk[][32]=
{
 // 物(0) 联(1) 网(2) 小(3) 白(4)

{0x40,0x3C,0x10,0xFF,0x10,0x10,0x20,0x10,0x8F,0x78,0x08,0xF8,0x08,0xF8,0x00,0x00},
{0x02,0x06,0x02,0xFF,0x01,0x01,0x04,0x42,0x21,0x18,0x46,0x81,0x40,0x3F,0x00,0x00},/*"物",0*/
/* (16 X 16 , 宋体 )*/

{0x02,0xFE,0x92,0x92,0xFE,0x02,0x00,0x10,0x11,0x16,0xF0,0x14,0x13,0x10,0x00,0x00},
{0x10,0x1F,0x08,0x08,0xFF,0x04,0x81,0x41,0x31,0x0D,0x03,0x0D,0x31,0x41,0x81,0x00},/*"联",1*/
/* (16 X 16 , 宋体 )*/

{0x00,0xFE,0x02,0x22,0x42,0x82,0x72,0x02,0x22,0x42,0x82,0x72,0x02,0xFE,0x00,0x00},
{0x00,0xFF,0x10,0x08,0x06,0x01,0x0E,0x10,0x08,0x06,0x01,0x4E,0x80,0x7F,0x00,0x00},/*"网",2*/
/* (16 X 16 , 宋体 )*/

{0x00,0x00,0x00,0xE0,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x20,0x40,0x80,0x00,0x00},
{0x08,0x04,0x03,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x01,0x0E,0x00},/*"小",3*/
/* (16 X 16 , 宋体 )*/

{0x00,0x00,0xF8,0x08,0x08,0x0C,0x0A,0x09,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x00},
{0x00,0x00,0xFF,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0xFF,0x00,0x00,0x00},/*"白",4*/
/* (16 X 16 , 宋体 )*/



};

#endif

上述驱动软件完成后,在main.c里调用一下相关函数就可以在OLED上输出想要的字符了。

main.c

这里是我的main函数

int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_I2C1_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */
	OLED_Init();
  OLED_Clear();
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */
		OLED_ShowString(0,0,"Hello",8);
		OLED_ShowCHinese(0,2,0);  //物
		OLED_ShowCHinese(16,2,1);	//联
		OLED_ShowCHinese(32,2,2);	//网
		OLED_ShowCHinese(48,2,3);	//小
		OLED_ShowCHinese(64,2,4);	//白
		OLED_ShowString(80,2,"Jayce",16);
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

最后编译下载,实验结果如下:
请添加图片描述
作者能力有限,有出错的地方希望大家指出纠正,谢谢!

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