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【沁恒 CH32V208 开发板免费试用】坚难的驱动OLED SSD1306

2023-4-21 07:43:26 1249 CH32V208 OLED RISC-V

前面用RT-Thread没有驱动成功SSD1306，为查找原因现在改为为非操作系统驱动I2C。

I2C摸拟时序

IO选取：
经查看原理图，选取I2C1的黙认IO PB8（SCL），PB9(SDA).
IO初始化，由于SSD1306：

GPIO_InitTypeDef GPIO_InitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

定义SCL、SDA 电平宏定义

#define SCL_high GPIO_WriteBit(GPIOB,GPIO_Pin_8, Bit_SET)

#define SCL_low GPIO_WriteBit(GPIOB, GPIO_Pin_8,  Bit_RESET)

#define SDA_high GPIO_WriteBit(GPIOB,GPIO_Pin_9, Bit_SET)

#define SDA_low GPIO_WriteBit(GPIOB,GPIO_Pin_9, Bit_RESET)

实现I2C模拟的基本功能 START、ACK、NACK

I2C START：

//起始信号
void I2C_Start(void)
{
	SDA_high;
	SCL_high;
	IIC_delay();
	SDA_low;
	IIC_delay();
	SCL_low;
	IIC_delay();
}

STOP

//结束信号
void I2C_Stop(void)
{
	SDA_low;
	SCL_high;
	IIC_delay();
	SDA_high;
}

I2C_WaitAck

//等待信号响应
void I2C_WaitAck(void) //测数据信号的电平
{
	SDA_high;
	IIC_delay();
	SCL_high;
	IIC_delay();
	SCL_low;
	IIC_delay();
}

写入一个字节

//写入一个字节
void Send_Byte(uint8_t dat)
{
	uint8_t i;
	for(i=0;i<8;i++)
	{
		if(dat&0x80)//将dat的8位从最高位依次写入
		{
			SDA_high;
    }
		else
		{
			SDA_low;
    }
		IIC_delay();
		SCL_high;
		IIC_delay();
		SCL_low;//将时钟信号设置为低电平
		dat<<=1;
  }
}

发送一个字节

//mode:数据/命令标志 0,表示命令;1,表示数据;
void OLED_WR_Byte(uint8_t dat,uint8_t mode)
{
	I2C_Start();
	Send_Byte(0x78);
	I2C_WaitAck();
	if(mode){Send_Byte(0x40);}
  else{Send_Byte(0x00);}
	I2C_WaitAck();
	Send_Byte(dat);
	I2C_WaitAck();
	I2C_Stop();
}

这些基本功能实现后就可以对接原来的驱动了。整体的oled.c函数如下：

#include "oled.h"
#include "stdlib.h"
#include "oledfont.h"


uint8_t OLED_GRAM[144][8];

//反显函数
void OLED_ColorTurn(uint8_t i)
{
	if(i==0)
		{
			OLED_WR_Byte(0xA6,OLED_CMD);//正常显示
		}
	if(i==1)
		{
			OLED_WR_Byte(0xA7,OLED_CMD);//反色显示
		}
}

//屏幕旋转180度
void OLED_DisplayTurn(uint8_t i)
{
	if(i==0)
		{
			OLED_WR_Byte(0xC8,OLED_CMD);//正常显示
			OLED_WR_Byte(0xA1,OLED_CMD);
		}
	if(i==1)
		{
			OLED_WR_Byte(0xC0,OLED_CMD);//反转显示
			OLED_WR_Byte(0xA0,OLED_CMD);
		}
}

//延时
void IIC_delay(void)
{
	uint8_t t=3;
	while(t--);
}

//起始信号
void I2C_Start(void)
{
	SDA_high;
	SCL_high;
	IIC_delay();
	SDA_low;
	IIC_delay();
	SCL_low;
	IIC_delay();
}

//结束信号
void I2C_Stop(void)
{
	SDA_low;
	SCL_high;
	IIC_delay();
	SDA_high;
}

//等待信号响应
void I2C_WaitAck(void) //测数据信号的电平
{
	SDA_high;
	IIC_delay();
	SCL_high;
	IIC_delay();
	SCL_low;
	IIC_delay();
}

//写入一个字节
void Send_Byte(uint8_t dat)
{
	uint8_t i;
	for(i=0;i<8;i++)
	{
		if(dat&0x80)//将dat的8位从最高位依次写入
		{
			SDA_high;
    }
		else
		{
			SDA_low;
    }
		IIC_delay();
		SCL_high;
		IIC_delay();
		SCL_low;//将时钟信号设置为低电平
		dat<<=1;
  }
}

//发送一个字节
//mode:数据/命令标志 0,表示命令;1,表示数据;
void OLED_WR_Byte(uint8_t dat,uint8_t mode)
{
	I2C_Start();
	Send_Byte(0x78);
	I2C_WaitAck();
	if(mode){Send_Byte(0x40);}
  else{Send_Byte(0x00);}
	I2C_WaitAck();
	Send_Byte(dat);
	I2C_WaitAck();
	I2C_Stop();
}

//开启OLED显示 
void OLED_DisPlay_On(void)
{
	OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能
	OLED_WR_Byte(0x14,OLED_CMD);//开启电荷泵
	OLED_WR_Byte(0xAF,OLED_CMD);//点亮屏幕
}

//关闭OLED显示 
void OLED_DisPlay_Off(void)
{
	OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能
	OLED_WR_Byte(0x10,OLED_CMD);//关闭电荷泵
	OLED_WR_Byte(0xAE,OLED_CMD);//关闭屏幕
}

//更新显存到OLED	
void OLED_Refresh(void)
{
	uint8_t i,n;
	for(i=0;i<8;i++)
	{
		OLED_WR_Byte(0xb0+i,OLED_CMD); //设置行起始地址
		OLED_WR_Byte(0x00,OLED_CMD);   //设置低列起始地址
		OLED_WR_Byte(0x10,OLED_CMD);   //设置高列起始地址
		I2C_Start();
		Send_Byte(0x78);
		I2C_WaitAck();
		Send_Byte(0x40);
		I2C_WaitAck();
		for(n=0;n<128;n++)
		{
			Send_Byte(OLED_GRAM[n][i]);
			I2C_WaitAck();
		}
		I2C_Stop();
  }
}
//清屏函数
void OLED_Clear(void)
{
	uint8_t i,n;
	for(i=0;i<8;i++)
	{
	   for(n=0;n<128;n++)
			{
			 OLED_GRAM[n][i]=0;//清除所有数据
			}
  }
	OLED_Refresh();//更新显示
}

//画点 
//x:0~127
//y:0~63
//t:1 填充 0,清空	
void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t)
{
	uint8_t i,m,n;
	i=y/8;
	m=y%8;
	n=1<<m;
	if(t){OLED_GRAM[x][i]|=n;}
	else
	{
		OLED_GRAM[x][i]=~OLED_GRAM[x][i];
		OLED_GRAM[x][i]|=n;
		OLED_GRAM[x][i]=~OLED_GRAM[x][i];
	}
}

//画线
//x1,y1:起点坐标
//x2,y2:结束坐标
void OLED_DrawLine(uint8_t x1,uint8_t y1,uint8_t x2,uint8_t y2,uint8_t mode)
{
	uint16_t t;
	int xerr=0,yerr=0,delta_x,delta_y,distance;
	int incx,incy,uRow,uCol;
	delta_x=x2-x1; //计算坐标增量 
	delta_y=y2-y1;
	uRow=x1;//画线起点坐标
	uCol=y1;
	if(delta_x>0)incx=1; //设置单步方向 
	else if (delta_x==0)incx=0;//垂直线 
	else {incx=-1;delta_x=-delta_x;}
	if(delta_y>0)incy=1;
	else if (delta_y==0)incy=0;//水平线 
	else {incy=-1;delta_y=-delta_x;}
	if(delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴 
	else distance=delta_y;
	for(t=0;t<distance+1;t++)
	{
		OLED_DrawPoint(uRow,uCol,mode);//画点
		xerr+=delta_x;
		yerr+=delta_y;
		if(xerr>distance)
		{
			xerr-=distance;
			uRow+=incx;
		}
		if(yerr>distance)
		{
			yerr-=distance;
			uCol+=incy;
		}
	}
}
//x,y:圆心坐标
//r:圆的半径
void OLED_DrawCircle(uint8_t x,uint8_t y,uint8_t r)
{
	int a, b,num;
    a = 0;
    b = r;
    while(2 * b * b >= r * r)      
    {
        OLED_DrawPoint(x + a, y - b,1);
        OLED_DrawPoint(x - a, y - b,1);
        OLED_DrawPoint(x - a, y + b,1);
        OLED_DrawPoint(x + a, y + b,1);
 
        OLED_DrawPoint(x + b, y + a,1);
        OLED_DrawPoint(x + b, y - a,1);
        OLED_DrawPoint(x - b, y - a,1);
        OLED_DrawPoint(x - b, y + a,1);
        
        a++;
        num = (a * a + b * b) - r*r;//计算画的点离圆心的距离
        if(num > 0)
        {
            b--;
            a--;
        }
    }
}



//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//size1:选择字体 6x8/6x12/8x16/12x24
//mode:0,反色显示;1,正常显示
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t size1,uint8_t mode)
{
	uint8_t i,m,temp,size2,chr1;
	uint8_t x0=x,y0=y;
	if(size1==8)size2=6;
	else size2=(size1/8+((size1%8)?1:0))*(size1/2);  //得到字体一个字符对应点阵集所占的字节数
	chr1=chr-' ';  //计算偏移后的值
	for(i=0;i<size2;i++)
	{
		if(size1==8)
			  {temp=asc2_0806[chr1][i];} //调用0806字体
		else if(size1==12)
        {temp=asc2_1206[chr1][i];} //调用1206字体
		else if(size1==16)
        {temp=asc2_1608[chr1][i];} //调用1608字体
		else if(size1==24)
        {temp=asc2_2412[chr1][i];} //调用2412字体
		else return;
		for(m=0;m<8;m++)
		{
			if(temp&0x01)OLED_DrawPoint(x,y,mode);
			else OLED_DrawPoint(x,y,!mode);
			temp>>=1;
			y++;
		}
		x++;
		if((size1!=8)&&((x-x0)==size1/2))
		{x=x0;y0=y0+8;}
		y=y0;
  }
}


//显示字符串
//x,y:起点坐标  
//size1:字体大小 
//*chr:字符串起始地址 
//mode:0,反色显示;1,正常显示
void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t size1,uint8_t mode)
{
	while((*chr>=' ')&&(*chr<='~'))//判断是不是非法字符!
	{
		OLED_ShowChar(x,y,*chr,size1,mode);
		if(size1==8)x+=6;
		else x+=size1/2;
		chr++;
  }
}

//m^n
uint32_t OLED_Pow(uint8_t m,uint8_t n)
{
	uint32_t result=1;
	while(n--)
	{
	  result*=m;
	}
	return result;
}

//显示数字
//x,y :起点坐标
//num :要显示的数字
//len :数字的位数
//size:字体大小
//mode:0,反色显示;1,正常显示
void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size1,uint8_t mode)
{
	uint8_t t,temp,m=0;
	if(size1==8)m=2;
	for(t=0;t<len;t++)
	{
		temp=(num/OLED_Pow(10,len-t-1))%10;
			if(temp==0)
			{
				OLED_ShowChar(x+(size1/2+m)*t,y,'0',size1,mode);
      }
			else 
			{
			  OLED_ShowChar(x+(size1/2+m)*t,y,temp+'0',size1,mode);
			}
  }
}

//显示汉字
//x,y:起点坐标
//num:汉字对应的序号
//mode:0,反色显示;1,正常显示
void OLED_ShowChinese(uint8_t x,uint8_t y,uint8_t num,uint8_t size1,uint8_t mode)
{
	uint8_t m,temp;
	uint8_t x0=x,y0=y;
	uint16_t i,size3=(size1/8+((size1%8)?1:0))*size1;  //得到字体一个字符对应点阵集所占的字节数
	for(i=0;i<size3;i++)
	{
		if(size1==12)
				{temp=Hzk1[num][i];}//调用12*12字体
		else if(size1==16)
				{temp=Hzk2[num][i];}//调用16*16字体
		else if(size1==24)       
				{temp=Hzk3[num][i];}//调用24*24字体
		else if(size1==32)       
				{temp=Hzk4[num][i];}//调用32*32字体				
		else return;
		for(m=0;m<8;m++)
		{
			if(temp&0x01)OLED_DrawPoint(x,y,mode);
			else OLED_DrawPoint(x,y,!mode);
			temp>>=1;
			y++;
		}
		x++;
		if((x-x0)==size1)
		{x=x0;y0=y0+8;}
		y=y0;
	}
}

//num 显示汉字的个数
//space 每一遍显示的间隔
//mode:0,反色显示;1,正常显示
void OLED_ScrollDisplay(uint8_t num,uint8_t space,uint8_t mode)
{
	uint8_t i,n,t=0,m=0,r;
	while(1)
	{
		if(m==0)
		{
	    OLED_ShowChinese(128,24,t,16,mode); //写入一个汉字保存在OLED_GRAM[][]数组中
			t++;
		}
		if(t==num)
			{
				for(r=0;r<16*space;r++)      //显示间隔
				 {
					for(i=1;i<144;i++)
						{
							for(n=0;n<8;n++)
							{
								OLED_GRAM[i-1][n]=OLED_GRAM[i][n];
							}
						}
           OLED_Refresh();
				 }
        t=0;
      }
		m++;
		if(m==16){m=0;}
		for(i=1;i<144;i++)   //实现左移
		{
			for(n=0;n<8;n++)
			{
				OLED_GRAM[i-1][n]=OLED_GRAM[i][n];
			}
		}
		OLED_Refresh();
	}
}

//x,y：起点坐标
//sizex,sizey,图片长宽
//BMP[]：要写入的图片数组
//mode:0,反色显示;1,正常显示
void OLED_ShowPicture(uint8_t x,uint8_t y,uint8_t sizex,uint8_t sizey,uint8_t BMP[],uint8_t mode)
{
	uint16_t j=0;
	uint8_t i,n,temp,m;
	uint8_t x0=x,y0=y;
	sizey=sizey/8+((sizey%8)?1:0);
	for(n=0;n<sizey;n++)
	{
		 for(i=0;i<sizex;i++)
		 {
				temp=BMP[j];
				j++;
				for(m=0;m<8;m++)
				{
					if(temp&0x01)OLED_DrawPoint(x,y,mode);
					else OLED_DrawPoint(x,y,!mode);
					temp>>=1;
					y++;
				}
				x++;
				if((x-x0)==sizex)
				{
					x=x0;
					y0=y0+8;
				}
				y=y0;
     }
	 }
}
//OLED的初始化
void OLED_Init(void)
{

	Delay_Ms(200);
	
	OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
	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  Set Mapping RAM Display Start Line (0x00~0x3F)
	OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
	OLED_WR_Byte(0xCF,OLED_CMD);// Set SEG Output Current Brightness
	OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping     0xa0左右反置 0xa1正常
	OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction   0xc0上下反置 0xc8正常
	OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display
	OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
	OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty
	OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset	Shift Mapping RAM Counter (0x00~0x3F)
	OLED_WR_Byte(0x00,OLED_CMD);//-not offset
	OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
	OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
	OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
	OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
	OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
	OLED_WR_Byte(0x12,OLED_CMD);
	OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh
	OLED_WR_Byte(0x30,OLED_CMD);//Set VCOM Deselect Level
	OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
	OLED_WR_Byte(0x02,OLED_CMD);//
	OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
	OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable
	OLED_Clear();
	OLED_WR_Byte(0xAF,OLED_CMD);
}

OLED.h如下：

#ifndef __OLED_H
#define __OLED_H 

#include "ch32v20x_conf.h"
#include "stdlib.h"	

//-----------------OLED端口定义---------------- 
//              GND  电源地
//              VCC  3.3v电源
//              D0   PA0（SCL）
//              D1   PA1（SDA）

#define SCL_high GPIO_WriteBit(GPIOB,GPIO_Pin_8, Bit_SET)

#define SCL_low GPIO_WriteBit(GPIOB, GPIO_Pin_8,  Bit_RESET)

#define SDA_high GPIO_WriteBit(GPIOB,GPIO_Pin_9, Bit_SET)

#define SDA_low GPIO_WriteBit(GPIOB,GPIO_Pin_9, Bit_RESET)




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

void OLED_ClearPoint(uint8_t x,uint8_t y);
void OLED_ColorTurn(uint8_t i);
void OLED_DisplayTurn(uint8_t i);
void I2C_Start(void);
void I2C_Stop(void);
void I2C_WaitAck(void);
void Send_Byte(uint8_t dat);
void OLED_WR_Byte(uint8_t dat,uint8_t mode);
void OLED_DisPlay_On(void);
void OLED_DisPlay_Off(void);
void OLED_Refresh(void);
void OLED_Clear(void);
void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t);
void OLED_DrawLine(uint8_t x1,uint8_t y1,uint8_t x2,uint8_t y2,uint8_t mode);
void OLED_DrawCircle(uint8_t x,uint8_t y,uint8_t r);
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t size1,uint8_t mode);
void OLED_ShowChar6x8(uint8_t x,uint8_t y,uint8_t chr,uint8_t mode);
void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t size1,uint8_t mode);
void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size1,uint8_t mode);
void OLED_ShowChinese(uint8_t x,uint8_t y,uint8_t num,uint8_t size1,uint8_t mode);
void OLED_ScrollDisplay(uint8_t num,uint8_t space,uint8_t mode);
void OLED_ShowPicture(uint8_t x,uint8_t y,uint8_t sizex,uint8_t sizey,uint8_t BMP[],uint8_t mode);
void OLED_Init(void);

#endif

主函数添加内容如下：

/********************************** (C) COPYRIGHT *******************************
 * File Name          : main.c
 * Author             : WCH
 * Version            : V1.0.0
 * Date               : 2021/06/06
 * Description        : Main program body.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for 
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/

/*
 *@Note
 GPIO routine:
PA0 push-pull output.

*/

#include "debug.h"
#include "oled.h"
/* Global define */

/* Global Variable */

/*********************************************************************
 * @fn      GPIO_Toggle_INIT
 *
 * [url=home.php?mod=space&uid=2666770]@Brief[/url]   Initializes GPIOA.0
 *
 * [url=home.php?mod=space&uid=1141835]@Return[/url]  none
 */
void GPIO_Toggle_INIT(void)
{
    GPIO_InitTypeDef GPIO_InitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
}

/*********************************************************************
 * @fn      main
 *
 * @brief   Main program.
 *
 * @return  none
 */
int main(void)
{
    u8 i = 0;

    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
    Delay_Init();
    USART_Printf_Init(115200);
    printf("SystemClk:%d\r\n", SystemCoreClock);

    printf("GPIO Toggle TEST\r\n");
    Delay_Init();
    GPIO_Toggle_INIT();
    OLED_Init();      //初始化OLED
    OLED_ColorTurn(0);//0正常显示，1 反色显示
    OLED_DisplayTurn(0);//0正常显示 1 屏幕翻转显示
    OLED_Clear();
    Delay_Ms(800);
  //  OLED_ShowChinese(25,4,9,12,1);//12*12 年
  //  OLED_ShowChinese(50,4,10,12,1);//12*12 月
  //  OLED_ShowChinese(76,4,2,12,1);//12*12 日
  //  OLED_ShowChinese(0,52,11,12,1);//12*12 温
  //  OLED_ShowChinese(13,52,13,12,1);//12*12 度
  //  OLED_ShowChinese(69,52,12,12,1);//12*12 湿
  //  OLED_ShowChinese(82,52,13,12,1);//12*12 度
  //  OLED_ShowChinese(48,52,14,12,1);//12*12 ℃
  //  OLED_ShowChinese(116,52,15,12,1);//12*12 ％
    //OLED_DrawCircle(100,26,18);
    OLED_ShowString(8, 6, "Hello ELECFANS!", 16, 1);
    OLED_ShowString(22, 26, "CH32V308", 24, 1);
    OLED_ShowNum(12, 52, 2023, 4, 12, 1);
    OLED_ShowChinese(40,52,9,12,1);//12*12 年
    OLED_ShowNum(54, 52, 4, 1, 12, 1);
    OLED_ShowChinese(64,52,10,12,1);//12*12 月
    OLED_ShowNum(80, 52, 21, 2, 12, 1);
    OLED_ShowChinese(94,52,2,12,1);//12*12 日
    OLED_Refresh();
    while(1)
    {
//        OLED_ShowString(8, 6, "Hello EEWORLD!", 16, 1);
//            OLED_ShowString(22, 26, "CH582M", 24, 1);
//            OLED_ShowNum(12, 52, 2022, 4, 12, 1);
//            OLED_ShowChinese(40,52,9,12,1);//12*12 年
//            OLED_ShowNum(54, 52, 2, 1, 12, 1);
//            OLED_ShowChinese(64,52,10,12,1);//12*12 月
//            OLED_ShowNum(80, 52, 26, 2, 12, 1);
//            OLED_ShowChinese(94,52,2,12,1);//12*12 日
//            OLED_Refresh();
        Delay_Ms(250);
        GPIO_WriteBit(GPIOA, GPIO_Pin_0, (i == 0) ? (i = Bit_SET) : (i = Bit_RESET));
    }
}