概述

本章配置GD32F303使用IIC进行驱动SSD1306的12864OLED。查阅手册可以得知，PB10、PB11为I2C的接口。需要GD样片的可以加群申请：615061293 。

视频教学

https://www.bilibili.com/video/BV1od4y1u7t7/

csdn课程

课程更加详细。 https://download.csdn.net/course/detail/37144

样品申请

https://www.wjx.top/vm/wFGhGPF.aspx#

参考文档

GD官方文档GD32F30x_Firmware_Library_V2.1.4下面IIC的Master_transmitter&slave_receiver

时钟使能

/*!
    brief      enable the peripheral clock
    param[in]  none
    param[out] none
    retval     none
*/
void rcu_config(void)
{
    /* enable GPIOB clock */
    rcu_periph_clock_enable(RCU_GPIOB);
    /* enable I2C1 clock */
    rcu_periph_clock_enable(RCU_I2C1);
}

初始化IO

/*!
    brief      cofigure the GPIO ports
    param[in]  none
    param[out] none
    retval     none
*/
void gpio_config(void)
{

    /* connect PB10 to I2C1_SCL */
    /* connect PB11 to I2C1_SDA */
    gpio_init(GPIOB, GPIO_MODE_AF_OD, GPIO_OSPEED_50MHZ,  GPIO_PIN_10 | GPIO_PIN_11);
}

IIC初始化

/*!
    brief      cofigure the I2C0 and I2C1 interfaces
    param[in]  none
    param[out] none
    retval     none
*/
void i2c_config(void)
{

    i2c_clock_config(I2C1, 100000, I2C_DTCY_2);
    /* I2C address configure */
    i2c_mode_addr_config(I2C1, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, 0x78);
    /* enable I2C1 */
    i2c_enable(I2C1);
    /* enable acknowledge */
    i2c_ack_config(I2C1, I2C_ACK_ENABLE);
}

配置IIC接口

/*!
    brief      cofigure the  I2C1 interfaces
    param[in]  none
    param[out] none
    retval     none
*/
void i2c_config(void)
{

    /* configure I2C1 clock */
    i2c_clock_config(I2C1, 100000, I2C_DTCY_2);
    /* configure I2C1 address */
    i2c_mode_addr_config(I2C1, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, 0x78);
    /* enable I2C1 */
    i2c_enable(I2C1);
    /* enable acknowledge */
    i2c_ack_config(I2C1, I2C_ACK_ENABLE);
}

修改IIC发送代码

将Master_transmitter&slave_receiver的IIC发送代码进行修改

/**
  * @brief I2C1写函数
  * @param addr设备地址
  * @param pdata 数据指针
  * @param data_length 数据长度
  */
void i2c_write(uint8_t addr, uint8_t *pdata, uint32_t data_length)
{
    uint32_t i;

    /* wait until I2C bus is idle */
    while(i2c_flag_get(I2C1, I2C_FLAG_I2CBSY));//等待总线空闲
    /* send a start condition to I2C bus */
    i2c_start_on_bus(I2C1);//发送start信号
    /* wait until SBSEND bit is set */
    while(!i2c_flag_get(I2C1, I2C_FLAG_SBSEND));    //起始位是否发送
    /* send slave address to I2C bus */
    i2c_master_addressing(I2C1, addr, I2C_TRANSMITTER);//设置从机地址和执行发送操作
    /* wait until ADDSEND bit is set */
    while(!i2c_flag_get(I2C1, I2C_FLAG_ADDSEND));//主机模式下地址是否发送
    /* clear ADDSEND bit */
    i2c_flag_clear(I2C1, I2C_FLAG_ADDSEND);//清除标志位主机模式下地址是否发送
    /* wait until the transmit data buffer is empty */
    while(!i2c_flag_get(I2C1, I2C_FLAG_TBE));//发送期间I2C_DATA为空
    for(i = 0; i < data_length; i++){
        /* data transmission */
        i2c_data_transmit(I2C1, pdata[i]);//发送数据
        /* wait until the TBE bit is set */
        while(!i2c_flag_get(I2C1, I2C_FLAG_TBE));//发送期间I2C_DATA为空
    }
    /* send a stop condition to I2C bus */
    i2c_stop_on_bus(I2C1);//在I2C总线上生成停止位
    /* wait until stop condition generate */ 
    while(I2C_CTL0(I2C1)&0x0200);  //等待直到停止条件生成  
}

OLED

查看文档可以知道地址为b0111100或者b0111101，当R/W位置写0的时候，才能进行写的操作，那么地址默认为0x78(b01111000)或者0x7A(b01111010)

参考程序

这里使用0.96OLED显示屏_STM32F103C8_IIC_V1.0来进行移植查看工程可以知道主要是有3个文件来进行OLED的驱动，移入OLE.h .c 、oledfont.h 、 bmp.h 移入文件之后要注意导入C文件。记得添加路径。删除没有用的头文件删除sys.h文件删除delay.h文件

可以查看stdint.h

在oled.h中添加u8 u32定义也可以直接修改

typedef unsigned          char u8;
typedef unsigned           int u32;

先把oled.h添加主程序中。

查看oled.h，可以看到IIC定义，同时也是模拟IIC，可以注释掉查看oled.c，可以看到是模拟iic，这些都可以注释不要，我们使用的是iIC，不是模拟。将IIC写放入oled.c中。记得导入#include "gd32f30x_i2c.h"头文件

记得在oled.h中申明要使用uint8和uint32，导入头文件#include "stdint.h"

IIC写一个字节可以修改为如下所示。

/**********************************************
// IIC Write byte
**********************************************/

void Write_IIC_Byte(unsigned char IIC_Byte)
{
//    unsigned char i;
//    unsigned char m,da;
//    da=IIC_Byte;
//    OLED_SCLK_Clr();
//    for(i=0;i< 8;i++)        
//    {
//            m=da;
//        //    OLED_SCLK_Clr();
//        m=m&0x80;
//        if(m==0x80)
//        {OLED_SDIN_Set();}
//        else OLED_SDIN_Clr();
//            da=da< < 1;
//        OLED_SCLK_Set();
//        OLED_SCLK_Clr();
//        }

uint8_t byte[1] = {};    
byte[0]=IIC_Byte;
i2c_write(0x78,byte, 1);            
}

IIC写指令向0x78设备写命令0x00的IIC_Command指令。

/**********************************************
// IIC Write Command
**********************************************/
void Write_IIC_Command(unsigned char IIC_Command)
{
//   IIC_Start();
//   Write_IIC_Byte(0x78);            //Slave address,SA0=0
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(0x00);            //write command
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(IIC_Command); 
//    IIC_Wait_Ack();    
//   IIC_Stop();


    uint8_t byte[2] = {};    
    byte[0]    =0x00;
    byte[1]    =IIC_Command;    
    i2c_write(0x78,byte, 2);                
}

IIC写数据向0x78设备写数据0x40的IIC_Data指令。

/**********************************************
// IIC Write Data
**********************************************/
void Write_IIC_Data(unsigned char IIC_Data)
{
//   IIC_Start();
//   Write_IIC_Byte(0x78);            //D/C#=0; R/W#=0
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(0x40);            //write data
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(IIC_Data);
//    IIC_Wait_Ack();    
//   IIC_Stop();


    uint8_t byte[2] = {};    
    byte[0]    =0x40;
    byte[1]    =IIC_Data;    
    i2c_write(0x78,byte, 2);        

}

在oled.c中，OLED_Init初始化可以注释掉gpio初始化

在oled.c中，OLED_Init初始化中有个延时800ms。导入 #include "systick.h" 可以使用delay_1ms(800);

取模

在oledfont.h中放入字库

char Hzk[][32]={

// 记(0) 帖(1) 年(2) 月(3) 日(4)

{0x40,0x40,0x42,0xCC,0x00,0x00,0x00,0x84,0x84,0x84,0x84,0x84,0xFC,0x00,0x00,0x00},
{0x00,0x00,0x00,0x7F,0x20,0x10,0x00,0x3F,0x40,0x40,0x40,0x40,0x41,0x40,0x70,0x00},/*"记",0*/
/* (16 X 16 , 宋体 )*/

{0x00,0xF8,0x08,0xFF,0x08,0xF8,0x00,0x00,0x00,0x00,0xFF,0x10,0x10,0x10,0x10,0x00},
{0x00,0x0F,0x00,0xFF,0x08,0x0F,0x00,0xFF,0x41,0x41,0x41,0x41,0x41,0xFF,0x00,0x00},/*"帖",1*/
/* (16 X 16 , 宋体 )*/

{0x00,0x20,0x18,0xC7,0x44,0x44,0x44,0x44,0xFC,0x44,0x44,0x44,0x44,0x04,0x00,0x00},
{0x04,0x04,0x04,0x07,0x04,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x00},/*"年",2*/
/* (16 X 16 , 宋体 )*/

{0x00,0x00,0x00,0xFE,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0xFE,0x00,0x00,0x00},
{0x80,0x40,0x30,0x0F,0x02,0x02,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x00,0x00,0x00},/*"月",3*/
/* (16 X 16 , 宋体 )*/

{0x00,0x00,0x00,0xFE,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0xFE,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0xFF,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0xFF,0x00,0x00,0x00,0x00},/*"日",4*/
/* (16 X 16 , 宋体 )*/




};

在main.c中添加显示

OLED_Init();            //初始化OLED  
        OLED_Clear()      ; 
        OLED_ShowCHinese(0,0,0);//记
        OLED_ShowCHinese(16,0,1);//帖


        OLED_ShowNum(0,2,2022,4,16);//显示ASCII字符的码值             
        OLED_ShowCHinese(32,2,2);//年    
        OLED_ShowNum(48,2,9,1,16);//显示ASCII字符的码值         
        OLED_ShowCHinese(64,2,3);//月
        OLED_ShowNum(80,2,10,2,16);//显示ASCII字符的码值                 
        OLED_ShowCHinese(96,2,4);//日

字体大小只有2个

显示字符

OLED_ShowString(40,2,"ZXY",8);

图片

图片放在bmp.h中。

#ifndef __BMP_H
#define __BMP_H        

unsigned char BMP1[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x1F,0x1F,0x1F,0x7F,0xFF,0xFF,
0xFF,0xFF,0xFF,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x0F,0x0F,
0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,
0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC7,0xC7,0xC7,0xC4,0x04,0x04,0x04,0x07,0xFF,
0xFF,0xFF,0xFF,0x0F,0x0F,0x0F,0x0F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x8F,0x80,0x80,
0x80,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,
0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x1F,
0x1F,0x1F,0xFF,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x8F,0x8F,0x8F,
0x8F,0x8F,0x8F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x0F,0x0F,0x0F,
0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x06,0x06,0x07,0x0F,
0xFF,0xFF,0xFF,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0x00,0x00,
0x00,0x00,0xF8,0xF8,0xF8,0xF8,0xF8,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,
0x00,0xC7,0xC7,0xC7,0xC7,0xC7,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
0xFF,0x00,0x00,0x00,0xFF,0xFF,0x0F,0x0F,0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,
0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x03,0x03,0x03,0x03,0xE3,0xE0,0xE0,0xE0,
0xE0,0xE3,0xE3,0x03,0x03,0x03,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0xF0,0xF0,0xF0,
0xFF,0xF0,0xF0,0xF0,0xFF,0xFF,0xF0,0xF0,0xF0,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0xF0,
0xF0,0xF0,0xF0,0xF8,0xF8,0xF8,0xFF,0xFF,0xF0,0xF0,0xF0,0xF0,0xF1,0xF1,0xF1,0xF1,
0xF1,0xF1,0xF1,0xF0,0xF0,0xF0,0xF0,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,/*"D:GD32F303GD32F30x_Firmware_Library_V2.1.4_iic_oled记帖.bmp",0*/
/* (64 X 64 )*/

};


#endif

显示图片

delay_1ms(2000);
        OLED_Clear();      
        OLED_DrawBMP(0,0,64,8,BMP1);  //图片显示(图片显示慎用，生成的字表较大，会占用较多空间，FLASH空间8K以下慎用)

OLED.C

//////////////////////////////////////////////////////////////////////////////////     
//本程序只供学习使用，未经作者许可，不得用于其它任何用途
//记帖Q群:615061293
//B站视频：https://space.bilibili.com/26152390
//CSDN:https://blog.csdn.net/qq_24312945/
//  文 件 名   : main.c
//  版 本 号   : v2.0
//  作    者   : Evk123
//  生成日期   : 2014-0101
//  最近修改   : 
//  功能描述   : 0.69寸OLED 接口演示例程(STM32F103ZE系列IIC)
//              说明: 
//              ----------------------------------------------------------------
//              GND   电源地
//              VCC   接5V或3.3v电源
//              SCL   接PA5（SCL）
//              SDA   接PA7（SDA）            
//              ----------------------------------------------------------------
//记帖Q群:615061293
//All rights reserved
//////////////////////////////////////////////////////////////////////////////////
#include "oled.h"
#include "stdlib.h"
#include "oledfont.h"       

#include "gd32f30x_i2c.h"
#include "systick.h"
//#include "delay.h"
//OLED的显存
//存放格式如下.
//[0]0 1 2 3 ... 127    
//[1]0 1 2 3 ... 127    
//[2]0 1 2 3 ... 127    
//[3]0 1 2 3 ... 127    
//[4]0 1 2 3 ... 127    
//[5]0 1 2 3 ... 127    
//[6]0 1 2 3 ... 127    
//[7]0 1 2 3 ... 127                
/**********************************************
//IIC Start
**********************************************/
/**********************************************
//IIC Start
**********************************************/
//void IIC_Start()
//{

//    OLED_SCLK_Set() ;
//    OLED_SDIN_Set();
//    OLED_SDIN_Clr();
//    OLED_SCLK_Clr();
//}

///**********************************************
////IIC Stop
//**********************************************/
//void IIC_Stop()
//{
//OLED_SCLK_Set() ;
////    OLED_SCLK_Clr();
//    OLED_SDIN_Clr();
//    OLED_SDIN_Set();
//    
//}

//void IIC_Wait_Ack()
//{

//    //GPIOB- >CRH &= 0XFFF0FFFF;    //设置PB12为上拉输入模式
//    //GPIOB- >CRH |= 0x00080000;
////    OLED_SDA = 1;
////    delay_us(1);
//    //OLED_SCL = 1;
//    //delay_us(50000);
///*    while(1)
//    {
//        if(!OLED_SDA)                //判断是否接收到OLED 应答信号
//        {
//            //GPIOB- >CRH &= 0XFFF0FFFF;    //设置PB12为通用推免输出模式
//            //GPIOB- >CRH |= 0x00030000;
//            return;
//        }
//    }
//*/
//    OLED_SCLK_Set() ;
//    OLED_SCLK_Clr();
//}





/**
  * @brief I2C1写函数
  * @param addr设备地址
  * @param pdata 数据指针
  * @param data_length 数据长度
  */
void i2c_write(uint8_t addr, uint8_t *pdata, uint32_t data_length)
{
    uint32_t i;

    /* wait until I2C bus is idle */
    while(i2c_flag_get(I2C1, I2C_FLAG_I2CBSY));//等待总线空闲
    /* send a start condition to I2C bus */
    i2c_start_on_bus(I2C1);//发送start信号
    /* wait until SBSEND bit is set */
    while(!i2c_flag_get(I2C1, I2C_FLAG_SBSEND));    //起始位是否发送
    /* send slave address to I2C bus */
    i2c_master_addressing(I2C1, addr, I2C_TRANSMITTER);//设置从机地址和执行发送操作
    /* wait until ADDSEND bit is set */
    while(!i2c_flag_get(I2C1, I2C_FLAG_ADDSEND));//主机模式下地址是否发送
    /* clear ADDSEND bit */
    i2c_flag_clear(I2C1, I2C_FLAG_ADDSEND);//清除标志位主机模式下地址是否发送
    /* wait until the transmit data buffer is empty */
    while(!i2c_flag_get(I2C1, I2C_FLAG_TBE));//发送期间I2C_DATA为空
    for(i = 0; i < data_length; i++){
        /* data transmission */
        i2c_data_transmit(I2C1, pdata[i]);//发送数据
        /* wait until the TBE bit is set */
        while(!i2c_flag_get(I2C1, I2C_FLAG_TBE));//发送期间I2C_DATA为空
    }
    /* send a stop condition to I2C bus */
    i2c_stop_on_bus(I2C1);//在I2C总线上生成停止位
    /* wait until stop condition generate */ 
    while(I2C_CTL0(I2C1)&0x0200);  //等待直到停止条件生成  
}


/**********************************************
// IIC Write byte
**********************************************/

void Write_IIC_Byte(unsigned char IIC_Byte)
{
//    unsigned char i;
//    unsigned char m,da;
//    da=IIC_Byte;
//    OLED_SCLK_Clr();
//    for(i=0;i< 8;i++)        
//    {
//            m=da;
//        //    OLED_SCLK_Clr();
//        m=m&0x80;
//        if(m==0x80)
//        {OLED_SDIN_Set();}
//        else OLED_SDIN_Clr();
//            da=da< < 1;
//        OLED_SCLK_Set();
//        OLED_SCLK_Clr();
//        }


uint8_t byte[1] = {};    
byte[0]=IIC_Byte;
i2c_write(0x78,byte, 1);

}




/**********************************************
// IIC Write Command
**********************************************/
void Write_IIC_Command(unsigned char IIC_Command)
{
//   IIC_Start();
//   Write_IIC_Byte(0x78);            //Slave address,SA0=0
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(0x00);            //write command
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(IIC_Command); 
//    IIC_Wait_Ack();    
//   IIC_Stop();

    uint8_t byte[2] = {};    
    byte[0]    =0x00;
    byte[1]    =IIC_Command;    
    i2c_write(0x78,byte, 2);    




}
/**********************************************
// IIC Write Data
**********************************************/
void Write_IIC_Data(unsigned char IIC_Data)
{
//   IIC_Start();
//   Write_IIC_Byte(0x78);            //D/C#=0; R/W#=0
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(0x40);            //write data
//    IIC_Wait_Ack();    
//   Write_IIC_Byte(IIC_Data);
//    IIC_Wait_Ack();    
//   IIC_Stop();
//     

    uint8_t byte[2] = {};    
    byte[0]    =0x40;
    byte[1]    =IIC_Data;    
    i2c_write(0x78,byte, 2);         


}
void OLED_WR_Byte(unsigned dat,unsigned cmd)
{
    if(cmd)
            {

   Write_IIC_Data(dat);

        }
    else {
   Write_IIC_Command(dat);

    }


}


/********************************************
// fill_Picture
********************************************/
void fill_picture(unsigned char fill_Data)
{
    unsigned char m,n;
    for(m=0;m< 8;m++)
    {
        OLED_WR_Byte(0xb0+m,0);        //page0-page1
        OLED_WR_Byte(0x00,0);        //low column start address
        OLED_WR_Byte(0x10,0);        //high column start address
        for(n=0;n< 128;n++)
            {
                OLED_WR_Byte(fill_Data,1);
            }
    }
}


/***********************Delay****************************************/
void Delay_50ms(unsigned int Del_50ms)
{
    unsigned int m;
    for(;Del_50ms >0;Del_50ms--)
        for(m=6245;m >0;m--);
}

void Delay_1ms(unsigned int Del_1ms)
{
    unsigned char j;
    while(Del_1ms--)
    {    
        for(j=0;j< 123;j++);
    }
}

//坐标设置

    void OLED_Set_Pos(unsigned char x, unsigned char y) 
{     OLED_WR_Byte(0xb0+y,OLED_CMD);
    OLED_WR_Byte(((x&0xf0) >>4)|0x10,OLED_CMD);
    OLED_WR_Byte((x&0x0f),OLED_CMD); 
}         
//开启OLED显示    
void OLED_Display_On(void)
{
    OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令
    OLED_WR_Byte(0X14,OLED_CMD);  //DCDC ON
    OLED_WR_Byte(0XAF,OLED_CMD);  //DISPLAY ON
}
//关闭OLED显示     
void OLED_Display_Off(void)
{
    OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令
    OLED_WR_Byte(0X10,OLED_CMD);  //DCDC OFF
    OLED_WR_Byte(0XAE,OLED_CMD);  //DISPLAY OFF
}                        
//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!      
void OLED_Clear(void)  
{  
    u8 i,n;            
    for(i=0;i< 8;i++)  
    {  
        OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）
        OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址
        OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   
        for(n=0;n< 128;n++)OLED_WR_Byte(0,OLED_DATA); 
    } //更新显示
}
void OLED_On(void)  
{  
    u8 i,n;            
    for(i=0;i< 8;i++)  
    {  
        OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）
        OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址
        OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   
        for(n=0;n< 128;n++)OLED_WR_Byte(1,OLED_DATA); 
    } //更新显示
}
//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(u8 x,u8 y,u8 chr,u8 Char_Size)
{          
    unsigned char c=0,i=0;    
        c=chr-' ';//得到偏移后的值            
        if(x >Max_Column-1){x=0;y=y+2;}
        if(Char_Size ==16)
            {
            OLED_Set_Pos(x,y);    
            for(i=0;i< 8;i++)
            OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
            OLED_Set_Pos(x,y+1);
            for(i=0;i< 8;i++)
            OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
            }
            else {    
                OLED_Set_Pos(x,y);
                for(i=0;i< 6;i++)
                OLED_WR_Byte(F6x8[c][i],OLED_DATA);

            }
}
//m^n函数
u32 oled_pow(u8 m,u8 n)
{
    u32 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(u8 x,u8 y,u32 num,u8 len,u8 size2)
{             
    u8 t,temp;
    u8 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); 
    }
} 
//显示一个字符号串
void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size)
{
    unsigned char j=0;
    while (chr[j]!='�')
    {        OLED_ShowChar(x,y,chr[j],Char_Size);
            x+=8;
        if(x >120){x=0;y+=2;}
            j++;
    }
}
//显示汉字
void OLED_ShowCHinese(u8 x,u8 y,u8 no)
{                      
    u8 t,adder=0;
    OLED_Set_Pos(x,y);    
    for(t=0;t< 16;t++)
        {
                OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
                adder+=1;
     }    
        OLED_Set_Pos(x,y+1);    
    for(t=0;t< 16;t++)
            {    
                OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
                adder+=1;
      }                    
}
/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
{     
 unsigned int j=0;
 unsigned char x,y;

  if(y1%8==0) y=y1/8;      
  else y=y1/8+1;
    for(y=y0;y< y1;y++)
    {
        OLED_Set_Pos(x0,y);
    for(x=x0;x< x1;x++)
        {      
            OLED_WR_Byte(BMP[j++],OLED_DATA);            
        }
    }
} 

//初始化SSD1306                        
void OLED_Init(void)
{     




//     GPIO_InitTypeDef  GPIO_InitStructure;
//     

//    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);     //使能A端口时钟
//    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_7;     
//     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;          //推挽输出
//    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//速度50MHz
//     GPIO_Init(GPIOA, &GPIO_InitStructure);      //初始化GPIOD3,6
//     GPIO_SetBits(GPIOA,GPIO_Pin_5|GPIO_Pin_7);    


//delay_ms(800);
delay_1ms(800);


OLED_WR_Byte(0xAE,OLED_CMD);//--display off
    OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
    OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
    OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  
    OLED_WR_Byte(0xB0,OLED_CMD);//--set page address
    OLED_WR_Byte(0x81,OLED_CMD); // contract control
    OLED_WR_Byte(0xFF,OLED_CMD);//--128   
    OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap 
    OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse
    OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
    OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty
    OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction
    OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset
    OLED_WR_Byte(0x00,OLED_CMD);//

    OLED_WR_Byte(0xD5,OLED_CMD);//set osc division
    OLED_WR_Byte(0x80,OLED_CMD);//

    OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off
    OLED_WR_Byte(0x05,OLED_CMD);//

    OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period
    OLED_WR_Byte(0xF1,OLED_CMD);//

    OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion
    OLED_WR_Byte(0x12,OLED_CMD);//

    OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh
    OLED_WR_Byte(0x30,OLED_CMD);//

    OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable
    OLED_WR_Byte(0x14,OLED_CMD);//

    OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
}

OLED.h

//////////////////////////////////////////////////////////////////////////////////     
//本程序只供学习使用，未经作者许可，不得用于其它任何用途

//
//  文 件 名   : main.c
//  版 本 号   : v2.0
//  作    者   : Evk123
//  生成日期   : 2014-0101
//  最近修改   : 
//  功能描述   : 0.69寸OLED 接口演示例程(STM32F103ZE系列IIC)
//              说明: 
//              ----------------------------------------------------------------
//              GND   电源地
//              VCC   接5V或3.3v电源
//              SCL   接PA5（SCL）
//              SDA   接PA7（SDA）            
//              ----------------------------------------------------------------
//记帖Q群:615061293
//B站视频：https://space.bilibili.com/26152390
//CSDN:https://blog.csdn.net/qq_24312945/
//All rights reserved
//////////////////////////////////////////////////////////////////////////////////
#ifndef __OLED_H
#define __OLED_H                   
//#include "sys.h"
#include "stdlib.h"     
#include "stdint.h"    

#define OLED_MODE 0
#define SIZE 8
#define XLevelL        0x00
#define XLevelH        0x10
#define Max_Column    128
#define Max_Row        64
#define    Brightness    0xFF 
#define X_WIDTH     128
#define Y_WIDTH     64      





//-----------------OLED IIC端口定义----------------                         

//#define OLED_SCLK_Clr() GPIO_ResetBits(GPIOA,GPIO_Pin_5)//SCL
//#define OLED_SCLK_Set() GPIO_SetBits(GPIOA,GPIO_Pin_5)

//#define OLED_SDIN_Clr() GPIO_ResetBits(GPIOA,GPIO_Pin_7)//SDA
//#define OLED_SDIN_Set() GPIO_SetBits(GPIOA,GPIO_Pin_7)


#define OLED_CMD  0    //写命令
#define OLED_DATA 1    //写数据


typedef unsigned          char u8;
typedef unsigned           int u32;

//OLED控制用函数
void OLED_WR_Byte(unsigned dat,unsigned cmd);  
void OLED_Display_On(void);
void OLED_Display_Off(void);                                                  
void OLED_Init(void);
void OLED_Clear(void);
void OLED_DrawPoint(u8 x,u8 y,u8 t);
void OLED_Fill(u8 x1,u8 y1,u8 x2,u8 y2,u8 dot);
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size);
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size);
void OLED_ShowString(u8 x,u8 y, u8 *p,u8 Char_Size);     
void OLED_Set_Pos(unsigned char x, unsigned char y);
void OLED_ShowCHinese(u8 x,u8 y,u8 no);
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);
void Delay_50ms(unsigned int Del_50ms);
void Delay_1ms(unsigned int Del_1ms);
void fill_picture(unsigned char fill_Data);
//void Picture();
//void IIC_Start();
//void IIC_Stop();
void Write_IIC_Command(unsigned char IIC_Command);
void Write_IIC_Data(unsigned char IIC_Data);
void Write_IIC_Byte(unsigned char IIC_Byte);

//void IIC_Wait_Ack();




void i2c_write(uint8_t addr, uint8_t *pdata, uint32_t data_length);

#endif

OLEDFONT.H

#ifndef __OLEDFONT_H
#define __OLEDFONT_H        
//常用ASCII表
//偏移量32
//ASCII字符集
//偏移量32
//大小:12*6
/************************************6*8的点阵************************************/
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
};
/****************************************8*16的点阵************************************/
const unsigned char F8X16[]=      
{
  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
};
char Hzk[][32]={

// 记(0) 帖(1) 年(2) 月(3) 日(4)

{0x40,0x40,0x42,0xCC,0x00,0x00,0x00,0x84,0x84,0x84,0x84,0x84,0xFC,0x00,0x00,0x00},
{0x00,0x00,0x00,0x7F,0x20,0x10,0x00,0x3F,0x40,0x40,0x40,0x40,0x41,0x40,0x70,0x00},/*"记",0*/
/* (16 X 16 , 宋体 )*/

{0x00,0xF8,0x08,0xFF,0x08,0xF8,0x00,0x00,0x00,0x00,0xFF,0x10,0x10,0x10,0x10,0x00},
{0x00,0x0F,0x00,0xFF,0x08,0x0F,0x00,0xFF,0x41,0x41,0x41,0x41,0x41,0xFF,0x00,0x00},/*"帖",1*/
/* (16 X 16 , 宋体 )*/

{0x00,0x20,0x18,0xC7,0x44,0x44,0x44,0x44,0xFC,0x44,0x44,0x44,0x44,0x04,0x00,0x00},
{0x04,0x04,0x04,0x07,0x04,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x00},/*"年",2*/
/* (16 X 16 , 宋体 )*/

{0x00,0x00,0x00,0xFE,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0xFE,0x00,0x00,0x00},
{0x80,0x40,0x30,0x0F,0x02,0x02,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x00,0x00,0x00},/*"月",3*/
/* (16 X 16 , 宋体 )*/

{0x00,0x00,0x00,0xFE,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0xFE,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0xFF,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0xFF,0x00,0x00,0x00,0x00},/*"日",4*/
/* (16 X 16 , 宋体 )*/


};

#endif

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发表于 11-02 15:36

星空派GD32F303开发板的相关资料下载

、eeprom等，支持3.2寸的TFT - LCD屏幕。所有IO口均引出，可完整地进行外设开发，包括：JTAG、RTC、I2C、UART、SPI、SDIO、EXMC、DAC、ADC、USB、TFT-LCD等。二、GD32F303芯片介绍：

发表于 12-10 08:27

gd32f303外部晶振使用25M，会对rt thread中的定时器精度造成影响吗？

使用25M，同步修改了时钟配置，目前可以达到100Mhz，查看时钟树不能确定是否需要修改外设的时钟配置，使用的工程为BSP里面的gd32f303的工程

发表于 06-14 09:40

GD32F303固件库开发（1）----前期准备与烧录

在这使用STM32CUBEMX进行配置STM32F103，移植到兆易创新GD32F303,然后进行测试。需要样片的可以加Qun申请：615061293。

发表于 11-23 11:15 •1904次阅读

GD32F303固件库开发（5）----GPIO输出模式，速率测试、开漏和输出说明

以STM32CUBEMX创建STM32F103工程，同时移植在GD32F303中，同时通过GD32303C_START开发板内进行验证。

发表于 11-25 15:32 •2558次阅读

STM32CUBEMX开发GD32F303（11）----ADC在DMA模式下扫描多个通道

本章STM32CUBEMX配置STM32F103，并且在GD32F303中进行开发，同时通过GD32303C_START开发板内进行验证。

发表于 11-30 10:59 •1558次阅读

STM32CUBEMX开发GD32F303（14）----IIC之配置OLED

本章STM32CUBEMX配置STM32F103，并且在GD32F303中进行开发，同时通过开发板内进行验证。

发表于 07-26 13:52 •1369次阅读

GD32F303固件库开发（15）----外部中断EXTI

本章配置GD32F303使用EXTI进行驱动LED。

发表于 07-26 15:56 •893次阅读

GD32F303固件库开发

的可以加群申请：615061293 。 GD32F303固件库开发（1）----前期准备与烧录使用GDLINK、jlink、串口下载程序到GD芯片。 [https://blog.cs

发表于 07-27 09:27 •668次阅读

STM32CUBEMX开发GD32F303

在这使用STM32CUBEMX进行配置STM32F103，移植到兆易创新GD32F303,然后进行测试。

发表于 07-27 09:32 •967次阅读

GD32F303为什么启动慢？

在MCU开发中，有一项非常重要的参数——MCU启动时间，即MCU上电后到程序开始运行这段时间。我们来看下GD32F303的datasheet中对启动时间的描述：

发表于 02-22 11:11 •447次阅读

搜索历史

GD32F303固件库开发（14）----IIC之配置OLED

概述

视频教学

csdn课程

样品申请

参考文档

时钟使能

初始化IO

IIC初始化

配置IIC接口

修改IIC发送代码

OLED

参考程序

取模

图片

显示图片

OLED.C

OLED.h

OLEDFONT.H

评论

STM32CUBEMX开发GD32F303（8）----USART收发配置

GD32E103和GD32F303区别

【GD32F303】星空派介绍

【星空派GD32F303开发板试用体验】开发记录汇总

【星空派GD32F303开发板试用体验】开箱+环境搭建

星空派GD32F303开发板的相关资料下载

gd32f303外部晶振使用25M，会对rt thread中的定时器精度造成影响吗？

GD32F303固件库开发（1）----前期准备与烧录

GD32F303固件库开发（5）----GPIO输出模式，速率测试、开漏和输出说明

STM32CUBEMX开发GD32F303（11）----ADC在DMA模式下扫描多个通道

STM32CUBEMX开发GD32F303（14）----IIC之配置OLED

GD32F303固件库开发（15）----外部中断EXTI

GD32F303固件库开发

STM32CUBEMX开发GD32F303

GD32F303为什么启动慢？