学习日志-05

一.IIC通信协议

<1>简介

IIC(Inter－Integrated Circuit)总线是一种由NXP（原PHILIPS）公司开发的两线式串行总线，用于连接微控制器及其外围设备。多用于主控制器和从器件间的主从通信，在小数据量场合使用，传输距离短，任意时刻只能有一个主机等特性。

在 CPU 与被控 IC 之间、IC 与 IC 之间进行双向传送，高速 IIC 总线一般可达 400kbps 以上。

PS： 这里要注意IIC是为了与低速设备通信而发明的，所以IIC的传输速率比不上SPI

<2>IIC物理层

IIC一共有只有两个总线： 一条是双向的串行数据线SＤA，一条是串行时钟线SCL.

•      SDA(Serial data)是数据线，D代表Data也就是数据，Send Data 也就是用来传输数据的 
•       SCL(Serial clock line)是时钟线，C代表Clock 也就是时钟 也就是控制数据发送的时序的 

IIC特点 

通常我们为了方便把IIC设备分为主设备和从设备，基本上谁控制时钟线（即控制SCL的电平高低变换）谁就是主设备。

IIC主设备功能：主要产生时钟，产生起始信号和停止信号

IIC从设备功能：可编程的IIC地址检测，停止位检测

IIC的一个优点是它支持多主控(multimastering)， 其中任何一个能够进行发送和接收的设备都可以成为主总线。一个主控能够控制信号的传输和时钟频率。当然，在任何时间点上只能有一个主控。

支持不同速率的通讯速度，标准速度(最高速度100kHZ),快速（最高400kHZ）

SCL和SDA都需要接上拉电阻 (大小由速度和容性负载决定一般在3.3K-10K之间) 保证数据的稳定性，减少干扰。

IIC是半双工，而不是全双工 ，同一时间只可以单向通信

为了避免总线信号的混乱，要求各设备连接到总线的输出端时必须是漏极开路（OD）输出或集电极开路（OC）输出。

IIC的高阻态：漏极开路（Open Drain）即高阻状态，适用于输入/输出，其可独立输入/输出低电平和高阻状态，若需要产生高电平，则需使用外部上拉电阻，电路分析时高阻态可做开路理解。
IIC器件地址： 每一个IIC器件都有一个器件地址，有的器件地址在出厂时地址就设定好了，用户不可以更改。

<3>IIC协议层

I2C 总线在传送数据过程中共有三种类型信号， 它们分别是：开始信号、结束信号和应答信号。

• 开始信号：SCL 为高电平时，SDA 由高电平向低电平跳变，开始传送数据。
• 结束信号：SCL 为高电平时，SDA 由低电平向高电平跳变，结束传送数据。
• 应答信号：接收数据的 IC 在接收到 8bit 数据后，向发送数据的 IC 发出特定的低电平脉冲，表示已收到数据。CPU 向受控单元发出一个信号后，等待受控单元发出一个应答信号，CPU 接收到应答信号后，根据实际情况作出是否继续传递信号的判断。若未收到应答信号，由判断为受控单元出现故障。

这些信号中，起始信号是必需的，结束信号和应答信号，都可以不要。

<4>IIC通信流程

先来看下IIC总线协议

 1.初始（空闲）状态

因为IIC的 SCL 和SDA 都需要接上拉电阻，保证空闲状态的稳定性

所以IIC总线在空闲状态下SCL 和SDA都保持高电平

2.开始信号

SCL保持高电平，SDA由高电平变为低电平后，延时(>4.7us)，SCL变为低电平。

3.数据传输阶段

IIC信号在数据传输过程中，当SCL=1高电平时，数据线SDA必须保持稳定状态，不允许有电平跳变，只有在时钟线上的信号为低电平期间，数据线上的高电平或低电平状态才允许变化。

SCL=1时 数据线SDA的任何电平变换会看做是总线的起始信号或者停止信号。

多数从设备的地址为7位或者10位，一般都用七位。
八位设备地址=7位从机地址+读/写地址，

再给地址添加一个方向位位用来表示接下来数据传输的方向，

• 0表示主设备向从设备(write)写数据，
• 1表示主设备向从设备(read)读数据

IIC的每一帧数据由9bit组成，

• 如果是发送数据，则包含 8bit数据+1bit ACK,
• 如果是设备地址数据，则8bit包含7bit设备地址 1bit方向

4.应答信号

每当主机向从机发送完一个字节的数据，主机总是需要等待从机给出一个应答信号，以确认从机是否成功接收到了数据，

应答信号：主机SCL拉高，读取从机SDA的电平，为低电平表示产生应答

应答信号为低电平时，规定为有效应答位（ACK，简称应答位），表示接收器已经成功地接收了该字节；
应答信号为高电平时，规定为非应答位（NACK），一般表示接收器接收该字节没有成功。

5.停止信号

 停止信号：SCL保持高电平。SDA由低电平变为高电平。

OVER---特别感谢一个博主，原文连接在下面：

IIC通信协议

二.任务一：IIC连接OLED

<1>STM32CubeMx设置

1.RCC设置

2.I2C设置

 

3.时钟树配置

 

<1>代码编写 

 oled.c

 

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

void OLED_Write_CMD(unsigned char i2c_cmd)
{
	uint8_t *cmd;
	cmd = &i2c_cmd;
	HAL_I2C_Mem_Write(&hi2c2,OLED_ADDRESS,0x00,I2C_MEMADD_SIZE_8BIT,cmd,1,100);
	
}

void OLED_Write_Data(unsigned char i2c_data)
{
	uint8_t *data;
	data = &i2c_data;
	HAL_I2C_Mem_Write(&hi2c2,OLED_ADDRESS,0x40,I2C_MEMADD_SIZE_8BIT,data,1,100);
}

void OLED_Init(void)
{
	HAL_Delay(200);
	OLED_Write_CMD(0xAE); //display off
	OLED_Write_CMD(0x20);	//Set Memory Addressing Mode	
	OLED_Write_CMD(0x10);	//00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
	OLED_Write_CMD(0xb0);	//Set Page Start Address for Page Addressing Mode,0-7
	OLED_Write_CMD(0xc8);	//Set COM Output Scan Direction
	OLED_Write_CMD(0x00); //---set low column address
	OLED_Write_CMD(0x10); //---set high column address
	OLED_Write_CMD(0x40); //--set start line address
	OLED_Write_CMD(0x81); //--set contrast control register
	OLED_Write_CMD(0xff); //亮度调节 0x00~0xff
	OLED_Write_CMD(0xa1); //--set segment re-map 0 to 127
	OLED_Write_CMD(0xa6); //--set normal display
	OLED_Write_CMD(0xa8); //--set multiplex ratio(1 to 64)
	OLED_Write_CMD(0x3F); //
	OLED_Write_CMD(0xa4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
	OLED_Write_CMD(0xd3); //-set display offset
	OLED_Write_CMD(0x00); //-not offset
	OLED_Write_CMD(0xd5); //--set display clock divide ratio/oscillator frequency
	OLED_Write_CMD(0xf0); //--set divide ratio
	OLED_Write_CMD(0xd9); //--set pre-charge period
	OLED_Write_CMD(0x22); //
	OLED_Write_CMD(0xda); //--set com pins hardware configuration
	OLED_Write_CMD(0x12);
	OLED_Write_CMD(0xdb); //--set vcomh
	OLED_Write_CMD(0x20); //0x20,0.77xVcc
	OLED_Write_CMD(0x8d); //--set DC-DC enable
	OLED_Write_CMD(0x14); //
	OLED_Write_CMD(0xaf); //--turn on oled panel
	
}

void OLED_SetPos(unsigned char x, unsigned char y) //设置起始点坐标
{ 
	OLED_Write_CMD(0xb0+y);
	OLED_Write_CMD(((x&0xf0)>>4)|0x10);
	OLED_Write_CMD((x&0x0f)|0x01);
}

void OLED_Fill(unsigned char fill_Data)//全屏填充
{
	unsigned char m,n;
	for(m=0;m<8;m++)
	{
		OLED_Write_CMD(0xb0+m);		//page0-page1
		OLED_Write_CMD(0x00);		//low column start address
		OLED_Write_CMD(0x10);		//high column start address
		for(n=0;n<128;n++)
			{
				OLED_Write_Data(fill_Data);
			}
	}
}

void OLED_CLS(void)//清屏
{
	OLED_Fill(0x00);
}

//--------------------------------------------------------------
// Prototype      : void OLED_ON(void)
// Calls          : 
// Parameters     : none
// Description    : 将OLED从休眠中唤醒
//--------------------------------------------------------------
void OLED_ON(void)
{
	OLED_Write_CMD(0X8D);  //设置电荷泵
	OLED_Write_CMD(0X14);  //开启电荷泵
	OLED_Write_CMD(0XAF);  //OLED唤醒
}

//--------------------------------------------------------------
// Prototype      : void OLED_OFF(void)
// Calls          : 
// Parameters     : none
// Description    : 让OLED休眠 -- 休眠模式下,OLED功耗不到10uA
//--------------------------------------------------------------
void OLED_OFF(void)
{
	OLED_Write_CMD(0X8D);  //设置电荷泵
	OLED_Write_CMD(0X10);  //关闭电荷泵
	OLED_Write_CMD(0XAE);  //OLED休眠
}
//--------------------------------------------------------------
// Prototype      : void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N)
// Calls          : 
// Parameters     : x,y -- 起始点坐标(x:0~127, y:0~7); N:汉字在codetab.h中的索引
// Description    : 显示codetab.h中的汉字,16*16点阵
//--------------------------------------------------------------
void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N)
{
	unsigned char wm=0;
	unsigned int  adder=32*N;
	OLED_SetPos(x , y);
	for(wm = 0;wm < 16;wm++)
	{
		OLED_Write_Data(text0[adder]);
		adder += 1;
	}
	OLED_SetPos(x,y + 1);
	for(wm = 0;wm < 16;wm++)
	{
		OLED_Write_Data(text0[adder]);
		adder += 1;
	}
}

//--------------------------------------------------------------
// Prototype      : void OLED_DrawBMP(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[]);
// Calls          : 
// Parameters     : x0,y0 -- 起始点坐标(x0:0~127, y0:0~7); x1,y1 -- 起点对角线(结束点)的坐标(x1:1~128,y1:1~8)
// Description    : 显示BMP位图
//--------------------------------------------------------------
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_SetPos(x0,y);
    for(x=x0;x<x1;x++)
		{
			OLED_Write_Data(BMP[j++]);
		}
	}
}

 oled.h

#ifndef _OLED_H
#define _OLED_H

#include "stm32f1xx_hal.h"

#define OLED_ADDRESS	0x78
extern I2C_HandleTypeDef hi2c2;

void OLED_Write_CMD(unsigned char i2c_cmd);
void OLED_Write_Data(unsigned char i2c_data);
void OLED_Init(void);
void OLED_SetPos(unsigned char x, unsigned char y); //设置起始点坐标
void OLED_Fill(unsigned char fill_Data);//全屏填充
void OLED_CLS(void);//清屏
void OLED_ON(void);
void OLED_OFF(void);
void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N);
void OLED_DrawBMP(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char bmp[]);


#endif

oledfont.h

unsigned  text0[]=
{
	0x20,0x24,0x24,0x24,0xFE,0x23,0x22,0x20,0x20,0xFF,0x20,0x22,0x2C,0xA0,0x20,0x00,
	0x00,0x08,0x48,0x84,0x7F,0x02,0x41,0x40,0x20,0x13,0x0C,0x14,0x22,0x41,0xF8,0x00,/*"我",0*/

	0x00,0xFC,0x04,0x04,0x04,0xFC,0x00,0x00,0xFC,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,
	0x00,0x0F,0x04,0x04,0x04,0x0F,0x00,0x00,0x0F,0x04,0x02,0x02,0x01,0xFF,0x00,0x00,/*"叫",1*/

	0x00,0x00,0x00,0xE0,0x20,0x20,0x20,0x3F,0x24,0x24,0x24,0x24,0xE4,0x04,0x00,0x00,
	0x80,0x40,0x30,0x0F,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x07,0x00,0x00,0x00,/*"卢",2*/

	0x10,0x10,0x10,0x10,0x10,0xFF,0x10,0x10,0xF0,0x10,0x11,0x16,0xD0,0x10,0x10,0x00,
	0x80,0x40,0x20,0x18,0x06,0x41,0x20,0x10,0x3F,0x44,0x42,0x41,0x40,0x40,0x78,0x00,/*"龙",3*/

	0x20,0x20,0xFF,0x20,0x24,0xF4,0x54,0x54,0x54,0xFF,0x54,0x55,0x56,0xF4,0x04,0x00,
	0x00,0x00,0xFF,0x00,0x08,0x0B,0x19,0x69,0x09,0x0B,0x49,0x89,0x7D,0x0B,0x08,0x00,/*"博",4*/

};

main.c

/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "i2c.h"
#include "gpio.h"
#include "oled.h"


/* Private includes ----------------------------------------------------------*/

/* USER CODE BEGIN 0 */
unsigned char BMP1[] =
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x3F,0x7F,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0x3F,0x1E,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x3E,0x7F,0x7F,0x7F,0xFF,0xFF,0xFE,0xFF,
0xFF,0x7F,0x7F,0x7F,0x3E,0x1C,0x00,0x00,0x00,0x00,0x00,0x0C,0x1E,0x1F,0x1F,0x3F,
0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x3F,0x1F,0x1F,0x1E,0x0C,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
unsigned char BMP2[] = 
{
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xF0,0xF8,0xF8,0xF8,0xF0,0xC0,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xF8,0xFE,0xFF,0xFF,0x3F,0x0F,0x3F,0xFF,0xFF,
0xFE,0xF8,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x18,0x3C,0x7E,0x7E,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xBE,0xBE,0x3E,
0x3E,0x3E,0x3E,0x3E,0x3E,0x3F,0x3F,0x3F,0x1F,0x07,0x01,0x00,0x00,0x00,0x00,0x07,
0x1F,0x3F,0x3F,0x3F,0x3E,0x3E,0x3E,0x3E,0x3E,0x3E,0xBE,0xBE,0xFE,0xFE,0xFE,0xFE,
0xFE,0xFE,0xFE,0xFE,0x7E,0x7E,0x3C,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x03,0x07,0x07,0x0F,0x0F,0x1F,0xFF,
0xFF,0xFE,0xFC,0xFC,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x38,0xFC,0xFC,0xFE,0xFE,0xFF,0x1F,0x0F,0x0F,0x07,0x07,0x03,
0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xFC,0xFF,0xFF,
0xFF,0xFF,0xE7,0xF1,0xF0,0xF8,0xF8,0xFC,0x7C,0x7E,0x3E,0x3F,0x1F,0x3F,0x3E,0x7E,
0x7C,0xFC,0xF8,0xF8,0xF0,0xF1,0xE7,0xFF,0xFF,0xFF,0xFF,0xFC,0xE0,0x80,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x1F,0x1F,0x1F,0x0F,
0x0F,0x07,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x01,0x03,0x03,0x07,0x0F,0x0F,0x1F,0x1F,0x1F,0x0F,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
/* USER CODE END 0 */

  /* USER CODE BEGIN 1 */
	unsigned char i;
  /* USER CODE END 1 */

  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */
		OLED_Fill(0xFF);//全屏点亮
		HAL_Delay(500);
		OLED_Fill(0x00);//全屏灭
		HAL_Delay(500);
		for(i=0;i<5;i++)
		{
			OLED_ShowCN(22+i*16,0,i);//测试显示中文
		}
		HAL_Delay(500);
		OLED_CLS();//清屏
		OLED_OFF();//测试OLED休眠
		HAL_Delay(500);
		OLED_ON();//测试OLED休眠后唤醒
		OLED_DrawBMP(0,0,128,8,(unsigned char *)BMP2);//测试BMP位图显示
//		HAL_Delay(10000);
//		OLED_CLS();//清屏
//		OLED_OFF();//测试OLED休眠
//		HAL_Delay(10000);
//		OLED_ON();//测试OLED休眠后唤醒
//		OLED_DrawBMP(0,0,128,64,(unsigned char *)BMP2);//测试BMP位图显示
//		HAL_Delay(1000);

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */