OLED 屏显示

1. 了解字符 OLED 模块的使用方法；
2. 掌握 STM32 控制字符 OLED 模块显示程序的设计方法；
3. 掌握 OLED 取字模的方法。

利用 OLED 屏显示汉字和字符。

main.c

#include "stm32f10x.h"
#include "systick.h"
#include "oled.h"
 
/* 
 * 函数名：main
 * 描述  : 主函数
 * 输入  ：无
 * 输出  : 无
 */
int main(void)
{
    /* 设置系统时钟为72M */
    SystemInit();
 
    OLED_Init(); //初始化OLED      
 
    LCD_P16x16Ch(32,7,0); //测
    LCD_P16x16Ch(48,7,1); //试
    LCD_P16x16Ch(64,7,2); //例 
    LCD_P16x16Ch(80,7,3); //程
 
    LCD_P8x16Ch(16,5,9); //D    
    LCD_P8x16Ch(24,5,10); //V   
    LCD_P8x16Ch(32,5,11); //C
    LCD_P8x16Ch(40,5,11); //C
 
    LCD_P16x16Ch(48,5,4); //系
    LCD_P16x16Ch(64,5,5); //列
    LCD_P16x16Ch(80,5,6); //产
    LCD_P16x16Ch(96,5,7); //品
 
    LCD_P8x16Ch(16,3,0); //S
    LCD_P8x16Ch(24,3,1); //T
    LCD_P8x16Ch(32,3,2); //M 
 
    LCD_P8x16Ch(40,3,3); //3
    LCD_P8x16Ch(48,3,4); //2
    LCD_P8x16Ch(56,3,5); //F
    LCD_P8x16Ch(64,3,6); //1
    LCD_P8x16Ch(72,3,7); //0
    LCD_P8x16Ch(80,3,8); //3
 
    LCD_P8x16Ch(0,1,13); //L  
    LCD_P8x16Ch(8,1,14); //E  
    LCD_P8x16Ch(16,1,15); //A  
    LCD_P8x16Ch(24,1,16); //R  
    LCD_P8x16Ch(32,1,17); //N 
    LCD_P8x16Ch(40,1,18); //  
    LCD_P8x16Ch(48,1,19); //S  
    LCD_P8x16Ch(56,1,20); //T  
    LCD_P8x16Ch(64,1,21); //A  
    LCD_P8x16Ch(72,1,22); //R  
    LCD_P8x16Ch(80,1,23); //T  
    LCD_P8x16Ch(88,1,24); //!  
    LCD_P8x16Ch(96,1,24); //!  
    LCD_P8x16Ch(104,1,24); //!  
 
    while (1)
    {
        ;
    }
}

在 oled.c 中有如下两处内容相关的地方：

字模数据.c

u8 const F16x16[] =	{
0x08,0x06,0x40,0x31,0x00,0x7F,0x40,0x4F,0x40,0x7F,0x00,0x1F,0x00,0xFF,0x00,0x00,
0x20,0x20,0x7E,0x80,0x01,0xE2,0x0C,0xF0,0x08,0xE4,0x00,0xE2,0x01,0xFE,0x00,0x00,/*"测",0*/
 
0x02,0x02,0x42,0x33,0x00,0x09,0x09,0x09,0x09,0x09,0xFF,0x08,0x88,0x68,0x08,0x00,
0x00,0x00,0x00,0xFC,0x08,0x14,0x06,0xFC,0x08,0x08,0x80,0x70,0x0C,0x02,0x0F,0x00,/*"试",1*/
 
0x01,0x06,0x1F,0xE0,0x00,0x21,0x3E,0x24,0x24,0x27,0x00,0x1F,0x00,0xFF,0x00,0x00,
0x00,0x00,0xFF,0x00,0x21,0xC2,0x84,0x48,0x30,0xC0,0x00,0xF2,0x01,0xFE,0x00,0x00,/*"例",2*/
 
0x24,0x24,0x25,0x7F,0xC4,0x44,0x00,0x7C,0x44,0x44,0x44,0x44,0x44,0x7C,0x00,0x00,
0x10,0x60,0x80,0xFF,0x80,0x60,0x02,0x92,0x92,0x92,0xFE,0x92,0x92,0x92,0x82,0x00,/*"程",3*/
 
0x00,0x00,0x44,0x4C,0x54,0x65,0x45,0x46,0x84,0x88,0x90,0x81,0x80,0x00,0x00,0x00,
0x00,0x42,0x44,0xC8,0xD0,0x42,0x41,0x7E,0x40,0x40,0x50,0x48,0xC4,0x62,0x00,0x00,/*"系",4*/
 
0x00,0x40,0x43,0x4C,0x78,0x48,0x48,0x4F,0x40,0x00,0x1F,0x00,0x00,0xFF,0x00,0x00,
0x40,0x81,0x02,0x84,0x48,0x30,0xC0,0x00,0x00,0x00,0xF0,0x02,0x01,0xFE,0x00,0x00,/*"列",5*/
 
0x00,0x20,0x21,0x21,0x29,0x27,0xA1,0x61,0x21,0x23,0x2D,0x21,0x21,0x21,0x01,0x00,
0x01,0x06,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"产",6*/
 
0x00,0x00,0x00,0x7E,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x7E,0x00,0x00,0x00,0x00,
0x00,0x7F,0x42,0x42,0x42,0x7F,0x00,0x00,0x00,0x7F,0x42,0x42,0x42,0x7F,0x00,0x00};/*"品",7*/
 
u8 const F8x16[] = {
0x00,0x0E,0x11,0x10,0x10,0x10,0x1C,0x00,0x00,0x1C,0x04,0x84,0x84,0x44,0x38,0x00,/*"S",0*/
0x18,0x10,0x10,0x1F,0x10,0x10,0x18,0x00,0x00,0x00,0x04,0xFC,0x04,0x00,0x00,0x00,/*"T",1*/
0x10,0x1F,0x1F,0x00,0x1F,0x1F,0x10,0x00,0x04,0xFC,0x00,0xFC,0x00,0xFC,0x04,0x00,/*"M",2*/
0x00,0x0C,0x10,0x11,0x11,0x12,0x0C,0x00,0x00,0x18,0x04,0x04,0x04,0x88,0x70,0x00,/*"3",3*/
0x00,0x0E,0x10,0x10,0x10,0x11,0x0E,0x00,0x00,0x0C,0x14,0x24,0x44,0x84,0x0C,0x00,/*"2",4*/
0x10,0x1F,0x11,0x11,0x17,0x10,0x08,0x00,0x04,0xFC,0x04,0x00,0xC0,0x00,0x00,0x00,/*"F",5*/
0x00,0x08,0x08,0x1F,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,0x00,/*"1",6*/
0x00,0x07,0x08,0x10,0x10,0x08,0x07,0x00,0x00,0xF0,0x08,0x04,0x04,0x08,0xF0,0x00,/*"0",7*/
0x00,0x0C,0x10,0x11,0x11,0x12,0x0C,0x00,0x00,0x18,0x04,0x04,0x04,0x88,0x70,0x00,/*"3",8*/
0x10,0x1F,0x10,0x10,0x10,0x08,0x07,0x00,0x04,0xFC,0x04,0x04,0x04,0x08,0xF0,0x00,/*"D",9*/
0x10,0x1E,0x11,0x00,0x00,0x13,0x1C,0x10,0x00,0x00,0xE0,0x1C,0x70,0x80,0x00,0x00,/*"V",10*/
0x03,0x0C,0x10,0x10,0x10,0x10,0x1C,0x00,0xE0,0x18,0x04,0x04,0x04,0x08,0x10,0x00,/*"C",11*/
 
0x00,0x07,0x08,0x11,0x11,0x18,0x00,0x00,0x00,0xF0,0x88,0x04,0x04,0x88,0x70,0x00,/*"6",12*/   
0x10,0x1F,0x10,0x00,0x00,0x00,0x00,0x00,0x04,0xFC,0x04,0x04,0x04,0x04,0x0C,0x00,/*"L",0*/
0x10,0x1F,0x11,0x11,0x17,0x10,0x08,0x00,0x04,0xFC,0x04,0x04,0xC4,0x04,0x18,0x00,/*"E",1*/
0x00,0x00,0x03,0x1C,0x07,0x00,0x00,0x00,0x04,0x3C,0xC4,0x40,0x40,0xE4,0x1C,0x04,/*"A",2*/
0x10,0x1F,0x11,0x11,0x11,0x11,0x0E,0x00,0x04,0xFC,0x04,0x00,0xC0,0x30,0x0C,0x04,/*"R",3*/
0x10,0x1F,0x0C,0x03,0x00,0x10,0x1F,0x10,0x04,0xFC,0x04,0x00,0xE0,0x18,0xFC,0x00,/*"N",4*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",5*/
0x00,0x0E,0x11,0x10,0x10,0x10,0x1C,0x00,0x00,0x1C,0x04,0x84,0x84,0x44,0x38,0x00,/*"S",6*/
0x18,0x10,0x10,0x1F,0x10,0x10,0x18,0x00,0x00,0x00,0x04,0xFC,0x04,0x00,0x00,0x00,/*"T",7*/
0x00,0x00,0x03,0x1C,0x07,0x00,0x00,0x00,0x04,0x3C,0xC4,0x40,0x40,0xE4,0x1C,0x04,/*"A",8*/
0x10,0x1F,0x11,0x11,0x11,0x11,0x0E,0x00,0x04,0xFC,0x04,0x00,0xC0,0x30,0x0C,0x04,/*"R",9*/
0x18,0x10,0x10,0x1F,0x10,0x10,0x18,0x00,0x00,0x00,0x04,0xFC,0x04,0x00,0x00,0x00,/*"T",10*/
0x00,0x00,0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xCC,0x0C,0x00,0x00,0x00,/*"!",11*/	
};

字/字符写函数.c

//16*16 字写函数
void LCD_P16x16Ch(u8 x,u8 y,u8 N)
{
    u8 wm=0;
    u16 adder=32*N;    	
    LCD_Set_Pos(x , y);
    for(wm = 0;wm < 16;wm++)               
    {
        OLED_WR_Byte(F16x16[adder],OLED_DATA); 
        adder += 1;
    }      
    LCD_Set_Pos(x,y-1); 
    for(wm = 0;wm < 16;wm++)          
    {
        OLED_WR_Byte(F16x16[adder],OLED_DATA); 
        adder += 1;
    } 	  	
}
 
//8*16 字符写函数
void LCD_P8x16Ch(u8 x,u8 y,u8 N)
{
    u8 wm=0;
    u16 adder=16*N;    	
    LCD_Set_Pos(x , y);
    for(wm = 0;wm < 8;wm++)               
    {
        OLED_WR_Byte(F8x16[adder],OLED_DATA); 
        adder += 1;
    }      
    LCD_Set_Pos(x,y-1); 
    for(wm = 0;wm < 8;wm++)          
    {
        OLED_WR_Byte(F8x16[adder],OLED_DATA); 
        adder += 1;
    } 	  	
}

初始化函数.c

void OLED_Init(void)
{ 	
    GPIO_InitTypeDef  GPIO_InitStructure;
 
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); //使能PC,D,G端口时钟
 
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4; //PD3,PD6推挽输出  
    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
 
    OLED_RST_Clr();
    delay_ms(100);
    OLED_RST_Set(); 
 
    OLED_WR_Byte(0xAE,OLED_CMD); //关闭显示
    OLED_WR_Byte(0xD5,OLED_CMD); //设置时钟分频因子,震荡频率
    OLED_WR_Byte(80,OLED_CMD); //[3:0],分频因子;[7:4],震荡频率
    OLED_WR_Byte(0xA8,OLED_CMD); //设置驱动路数
    OLED_WR_Byte(0X3F,OLED_CMD); //默认0X3F(1/64) 
    OLED_WR_Byte(0xD3,OLED_CMD); //设置显示偏移
    OLED_WR_Byte(0X00,OLED_CMD); //默认为0
 
    OLED_WR_Byte(0x40,OLED_CMD); //设置显示开始行 [5:0],行数.
 
    OLED_WR_Byte(0x8D,OLED_CMD); //电荷泵设置
    OLED_WR_Byte(0x14,OLED_CMD); //bit2，开启/关闭
    OLED_WR_Byte(0x20,OLED_CMD); //设置内存地址模式
    OLED_WR_Byte(0x02,OLED_CMD); //[1:0],00，列地址模式;01，行地址模式;10,页地址模式;默认10;
    OLED_WR_Byte(0xA1,OLED_CMD); //段重定义设置,bit0:0,0->0;1,0->127;
    OLED_WR_Byte(0xC0,OLED_CMD); //设置COM扫描方向;bit3:0,普通模式;1,重定义模式 COM[N-1]->COM0;N:驱动路数
    OLED_WR_Byte(0xDA,OLED_CMD); //设置COM硬件引脚配置
    OLED_WR_Byte(0x12,OLED_CMD); //[5:4]配置
 
    OLED_WR_Byte(0x81,OLED_CMD); //对比度设置
    OLED_WR_Byte(0xEF,OLED_CMD); //1~255;默认0X7F (亮度设置,越大越亮)
    OLED_WR_Byte(0xD9,OLED_CMD); //设置预充电周期
    OLED_WR_Byte(0xf1,OLED_CMD); //[3:0],PHASE 1;[7:4],PHASE 2;
    OLED_WR_Byte(0xDB,OLED_CMD); //设置VCOMH 电压倍率
    OLED_WR_Byte(0x30,OLED_CMD); //[6:4] 000,0.65*vcc;001,0.77*vcc;011,0.83*vcc;
 
    OLED_WR_Byte(0xA4,OLED_CMD); //全局显示开启;bit0:1,开启;0,关闭;(白屏/黑屏)
    OLED_WR_Byte(0xA6,OLED_CMD); //设置显示方式;bit0:1,反相显示;0,正常显示    					   
    OLED_WR_Byte(0xAF,OLED_CMD); //开启显示 
    OLED_Clear();
}  

1. 使用 1 根 5P 杜邦线连接核心板 PA0~PA4 与 JP51（D0,D1,RES,DC,CS）；
2. 在KEIL软件中调试运行“OLED屏显示”工程文件；
3. 实验现象：在OLED屏上显示 汉字和字符。

1. 按上述步骤调试出结果；
2. 利用字模软件生成字模数据，通过修改程序在OLED屏上显示如下内容：
   第1行，学号
   第2行，姓名
   第3行，班级名字
   第4行，STM32嵌入式实训
3. 让上述内容滚动显示（水平滚动，水平垂直滚动任选）。

任务2：

第1步：用字模软件生成需要用到的汉字和字符，将数据存入 oled.c 中。

任务2_字模数据.c

u8 const F16x16[] =	{
0x04,0x24,0x24,0x24,0x7F,0xC4,0x44,0x04,0x04,0xFF,0x04,0x44,0x34,0x05,0x04,0x00,
0x00,0x10,0x12,0x21,0xFE,0x40,0x82,0x02,0x04,0xC8,0x30,0x28,0x44,0x82,0x1F,0x00,/*内容："我",索引：0*/
0x00,0x1F,0x30,0xD0,0x10,0x10,0x1F,0x02,0x0C,0xF1,0x10,0x10,0x10,0x1F,0x00,0x00,
0x00,0xFE,0x84,0x84,0x84,0x84,0xFE,0x00,0x00,0x00,0xC2,0x01,0x02,0xFC,0x00,0x00,/*内容："的",索引：1*/
0x00,0x04,0x04,0x08,0x10,0x28,0xE6,0x21,0x22,0x24,0x28,0x30,0x00,0x00,0x00,0x00,
0x20,0x20,0x20,0x40,0x7F,0xC2,0xC2,0x42,0x42,0x42,0x42,0x42,0x7F,0x00,0x00,0x00,/*内容："名",索引：2*/
0x08,0x30,0x20,0x24,0x24,0x24,0xA4,0x64,0x25,0x26,0x24,0x20,0x20,0x28,0x30,0x00,
0x40,0x40,0x40,0x40,0x40,0x42,0x41,0xFE,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,/*内容："字",索引：3*/
0x21,0x21,0x3F,0x21,0x21,0x00,0x1F,0x00,0xFF,0x00,0x21,0x21,0x3F,0x21,0x21,0x00,
0x08,0x0C,0xF8,0x10,0x11,0x42,0x84,0x18,0xE0,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,/*内容："班",索引：4*/
0x04,0x0C,0x35,0xC6,0x0C,0x00,0x40,0x40,0x7F,0x40,0x40,0x46,0x5A,0x63,0x00,0x00,
0x44,0xE6,0x44,0x48,0x48,0x02,0x0C,0xF1,0x01,0xC2,0x34,0x08,0x34,0xC2,0x01,0x00,/*内容："级",索引：5*/
0x01,0x01,0x77,0x11,0x11,0x11,0x17,0xF1,0x10,0x11,0x1E,0x12,0x72,0x02,0x03,0x00,
0x00,0x00,0xFE,0x24,0x24,0x24,0xFE,0x00,0x81,0x02,0x0C,0xF0,0x0C,0x82,0x01,0x00,/*内容："嵌",索引：6*/
0x00,0x00,0x00,0x00,0x00,0x80,0x47,0x38,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x01,0x02,0x04,0x08,0x30,0xC0,0x00,0x00,0x00,0xC0,0x30,0x0C,0x02,0x01,0x01,0x00,/*内容："入",索引：7*/
0x08,0x08,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0xFF,0x08,0x08,0x88,0x68,0x08,0x00,
0x00,0x04,0x06,0x04,0xFC,0x08,0x08,0x08,0x00,0xC0,0x30,0x08,0x04,0x02,0x1F,0x00,/*内容："式",索引：8*/
0x00,0x00,0x44,0x4C,0x54,0x65,0x45,0x46,0x84,0x88,0x90,0x81,0x80,0x00,0x00,0x00,
0x00,0x42,0x44,0xC8,0xD0,0x42,0x41,0x7E,0x40,0x40,0x50,0x48,0xC4,0x62,0x00,0x00,/*内容："系",索引：9*/
0x04,0x0C,0x35,0xC6,0x0C,0x00,0x11,0x13,0x15,0x99,0x71,0x11,0x15,0x13,0x11,0x00,
0x44,0xE6,0x44,0x48,0x48,0x01,0x02,0x0C,0xF0,0x00,0x00,0xFC,0x02,0x02,0x8E,0x00,/*内容："统",索引：10*/
0x08,0x30,0x20,0x21,0x28,0x26,0xA0,0x60,0x2F,0x20,0x20,0x20,0x20,0x28,0x30,0x00,
0x20,0x21,0x21,0x22,0xE2,0x24,0x28,0x30,0xE0,0x30,0x28,0x24,0x22,0x21,0x20,0x00,/*内容："实",索引：11*/
0x02,0x02,0x42,0x33,0x00,0x00,0x00,0xFF,0x00,0x00,0x7F,0x00,0x00,0xFF,0x00,0x00,
0x00,0x00,0x00,0xFC,0x08,0x11,0x06,0xF8,0x00,0x00,0xFC,0x00,0x00,0xFF,0x00,0x00,/*内容："训",索引：12*/
};
 
u8 const F8x16[] = {
0x00,0x07,0x08,0x10,0x10,0x08,0x07,0x00,0x00,0xF0,0x08,0x04,0x04,0x08,0xF0,0x00,/*内容："0",索引：0*/
0x00,0x00,0x08,0x08,0x1F,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0xFC,0x04,0x04,0x00,/*内容："1",索引：1*/
0x00,0x0E,0x10,0x10,0x10,0x10,0x0F,0x00,0x00,0x0C,0x14,0x24,0x44,0x84,0x0C,0x00,/*内容："2",索引：2*/
0x00,0x0C,0x10,0x10,0x10,0x11,0x0E,0x00,0x00,0x18,0x04,0x84,0x84,0x44,0x38,0x00,/*内容："3",索引：3*/
0x00,0x00,0x01,0x02,0x0C,0x1F,0x00,0x00,0x00,0x60,0xA0,0x24,0x24,0xFC,0x24,0x24,/*内容："4",索引：4*/
0x00,0x1F,0x11,0x11,0x11,0x10,0x10,0x00,0x00,0x98,0x04,0x04,0x04,0x88,0x70,0x00,/*内容："5",索引：5*/
0x00,0x07,0x08,0x11,0x11,0x09,0x00,0x00,0x00,0xF0,0x88,0x04,0x04,0x04,0xF8,0x00,/*内容："6",索引：6*/
0x00,0x18,0x10,0x10,0x11,0x16,0x18,0x00,0x00,0x00,0x00,0x7C,0x80,0x00,0x00,0x00,/*内容："7",索引：7*/
0x00,0x0E,0x11,0x10,0x10,0x11,0x0E,0x00,0x00,0x38,0x44,0x84,0x84,0x44,0x38,0x00,/*内容："8",索引：8*/
0x00,0x0F,0x10,0x10,0x10,0x08,0x07,0x00,0x00,0x80,0x48,0x44,0x44,0x88,0xF0,0x00,/*内容："9",索引：9*/
0x00,0x0E,0x11,0x10,0x10,0x10,0x1C,0x00,0x00,0x1C,0x04,0x84,0x84,0x44,0x38,0x00,/*内容："S",索引：10*/
0x18,0x10,0x10,0x1F,0x10,0x10,0x18,0x00,0x00,0x00,0x04,0xFC,0x04,0x00,0x00,0x00,/*内容："T",索引：11*/
0x10,0x1F,0x1F,0x00,0x1F,0x1F,0x10,0x00,0x04,0xFC,0x80,0x7C,0x80,0xFC,0x04,0x00,/*内容："M",索引：12*/
};

第2步：在主函数中修改显示代码如下

任务2_main.c

int main(void)
{
    /* 设置系统时钟为72M */
    SystemInit();
    OLED_Init(); //初始化OLED
 
    // 由左下往右上，（列（间隔：字符8bit，字16bit），行（间隔：2），索引（查字模数据））
    // 第 4 行
    LCD_P8x16Ch(0,1,10); // S
    LCD_P8x16Ch(8,1,11); // T
    LCD_P8x16Ch(16,1,12); // M
    LCD_P8x16Ch(24,1,3); // 3
    LCD_P8x16Ch(32,1,2); // 2
    LCD_P16x16Ch(40,1,6); // 嵌
    LCD_P16x16Ch(56,1,7); // 入
    LCD_P16x16Ch(72,1,8); // 式
    LCD_P16x16Ch(88,1,9); // 系
    LCD_P16x16Ch(106,1,10); // 统
 
    // 第 3 行
    LCD_P16x16Ch(0,3,0); // 我
    LCD_P16x16Ch(16,3,1); // 的
    LCD_P16x16Ch(32,3,4); // 班
    LCD_P16x16Ch(48,3,5); // 级
 
    // 第 2 行
    LCD_P16x16Ch(0,5,0); // 我
    LCD_P16x16Ch(16,5,1); // 的
    LCD_P16x16Ch(32,5,2); // 名
    LCD_P16x16Ch(48,5,3); // 字
 
    // 第 1 行
    LCD_P8x16Ch(0,7,2); // 2
    LCD_P8x16Ch(8,7,0); // 0
    LCD_P8x16Ch(16,7,2); // 2
    LCD_P8x16Ch(24,7,0); // 0
    LCD_P8x16Ch(32,7,9); // 9
    LCD_P8x16Ch(40,7,5); // 5
    LCD_P8x16Ch(48,7,2); // 2
    LCD_P8x16Ch(56,7,7); // 7
    LCD_P8x16Ch(64,7,2); // 2
    LCD_P8x16Ch(72,7,7); // 7
 
    while (1)
    {
        ;
    }
}

任务3：

参考文档《内部SSD1306驱动芯片手册》第29页，在主函数中插入如下代码：

    OLED_Clear();
    OLED_WR_Byte(0x2e, OLED_CMD); // 关闭滚动
    // 参考文档说明，指定滚动类型后紧跟5条指令
    OLED_WR_Byte(0x29, OLED_CMD); // 滚动类型26h/27h/29h/2ah
    OLED_WR_Byte(0x00, OLED_CMD); // 虚拟字节
    OLED_WR_Byte(0x00, OLED_CMD); // 滚动起始页（水平）
    OLED_WR_Byte(0x00, OLED_CMD); // 滚动的时间间隔（越大滚动越慢）
    OLED_WR_Byte(0x01, OLED_CMD); // 滚动终止页（水平）
    OLED_WR_Byte(0x3f, OLED_CMD); // 垂直滚动偏移量 0x01~0x3f，从第1~63行开始滚动：
                                  // 0x01对应由上往下滚动，0x3f对应由下往上滚动
    此处放“任务2_main.c”中的显示内容......
    OLED_WR_Byte(0x2F, OLED_CMD); // 开启滚动