单片机控制电子产品项目开发 课件 95-20-拓展学习课件：LCD、OLED模块开发

作者：邹运怀LCD、OLED模块开发CONTENTS01LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA63150702OLED模块开发1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507反射型、全透型、半透型正性、负性显示单色屏、4级灰度屏、8级灰度屏、16级灰度屏、256级灰度屏、16色屏、256色伪彩色屏、TFT真彩色屏电阻式触摸屏、表面声波触摸屏、电容式触摸屏、红外线触摸屏笔段式、字符型、图形点阵式液晶显示器,简称LCD，是使用了“液晶”作为材料的显示器1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507笔段式LCD共端和位段端都不能简单给出高低电平就能点亮，因此需要专用的位段式液晶驱动芯片(或者单片机内部集成LCD驱动模块)1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507笔段式LCD引脚号插口名I/O功能描述1CSI片选输入，接一上拉电阻。当/CS为高电平，读写HT1621的数据和命令无效，串行接口电路复位；当/CS为低电平和作为输入时，读写HT1621的数据和命令有效。2RDIREAD脉冲输入，接一上拉电阻。在/RD信号的下降沿，HT1621内存的数据被读到DATA线上，主控制芯片可以在下一个上升沿时锁存这些数据。3/RWIWRITE脉冲输入，接一上拉电阻。在/RW信号的上升沿，DATA线上的数据写到HT1621.4DATAI/O外接上拉电阻的串行数据输入和输出。5VSSI负电源；地。76OSCIOSCOIOOSCI和OSCO外接一个32.768KHz晶振用于产生系统时钟；若用另一个外部时钟源，应接在OSCI上；若用片内RC震荡器，OSCI和OSCO应悬空。8VLCDILCD电源输入。9VDDI正电源。10/IRQO时基或看门狗定时器溢出标志，NMOS开漏输出。11,12BZ,/BZO声音频率输出。13～16COM0～COM3OLCD公共输出口。17～48SEG0～SEG31OLCD段输出口。1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA6315071621驱动LCD程序开发1使用供应商提供的模块程序2根据头文件提供的函数声明，即可编写1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA6315071621驱动LCD程序开发头文件#include<STC15.H>//1621引脚定义#defineRW_1621P14#defineCS_1621P15#defineDATA_1621P13#defineread_data0xc0//读数据模式#definewrite_data0xa0//写数据模式#definewrite_code0x80//写命令模式#100#definesys_en0x01//启动1621系统振荡器00000001-x#defineLCD_off0x02//关闭LCD偏压器#defineLCD_on0x03//开启LCD偏压器#definetime_dis0x04//禁止时基准输出#definewdt_dis0x05//禁止WDT暂停标记输出#definetime_en0x06//允许时基准输出#definewdt_en0x07//允许WDT暂停标记输出#definetone_off0x08//蜂鸣器输出禁止#definetone_on0x09//蜂鸣器输出允许#defineclr_timer0x0c//清除时其发生器内容#defineclr_wdt0x0e//清除WDT内容#definextal_32k0x14//外32K晶振#defineRC_256K0x18//内部RC振荡器作为时钟#defineext_RC0x1c//外部RC作为时钟#definebias_4com0x28//4com输出#defineirq_en0x88//允许IRQ输出#definef10xa0//时基/WDT时钟输出1HZvoid_delay(unsignedintx);voidcms1621_init(void);voidcms1621_diver(unsignedcharcont,unsignedchartemp);对使用的相关端口进行了定义，程序员要按照硬件电路设计0102申明相关函数1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA6315071621驱动LCD程序开发初始化函数调用1621的初始化函数voidMCU_init(void){

unsignedchari=0; P1=0x00; P1M0=0x00; P1M1=0x00; P3=0x00; P3M0=0xC0; P3M1=0x00; P5=0x00; P5M0=0x20; P5M1=0x00; LED1=LEDON; LED2=LEDOFF; cms1621_init(); AUXR|=0x80; //定时器时钟1T模式 TMOD&=0xF0; //设置定时器模式 TL0=0x9A; //设置定时初值 TH0=0xFA; //设置定时初值 TF0=0; //清除TF0标志 TR0=1; //定时器0开始计时 ET0=1; EA=1;}1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA6315071621驱动LCD程序开发LCD显示函数按照显示内容与1621通信传递显示数据voidDsp_LCD(void){ unsignedchari;

for(i=0;i<8;i++)dsp_buf2[i]=0;

//显示驱动把显示缓冲的内容送入显示

dsp_numerical_1(Dsp_Num[0]); dsp_numerical_2(Dsp_Num[1]); dsp_numerical_3(Dsp_Num[2]); dsp_numerical_4(Dsp_Num[3]);

for(i=0;i<8;i++) dsp_buf[i]=dsp_buf2[i]; CS_1621=0; _delay(20);

cms1621_diver(3,write_data);

cms1621_diver(6,0);

for(i=0;i<5;i++)

cms1621_diver(8,dsp_buf[i]);//dsp_buf[i] for(i=0;i<8;i++)

cms1621_diver(8,0); for(i=0;i<3;i++) cms1621_diver(8,dsp_buf[i+5]); CS_1621=1; }1.LCD模块e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507字符式LCD显示字符式LCD往往自带驱动芯片，液晶可以和控制芯片直接连接编号符号引脚说明编号符号引脚说明1VSS电源地9D2数据2VDD电源正极10D3数据3VL液晶显示偏压11D4数据4RS数据/命令选择12D5数据5R/W读/写选择13D6数据6E使能信号14D7数据7D0数据15BLA背光源正极8D1数据16BLK背光源负极LCD16022.OLED模块开发e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507有机发光二极管（OLED）自发光、广视角、高对比度、较低耗电、极高反应速度一般通过I2C或者SPI与嵌入式控制芯片连接通信，也可以和普通I/O相连2.OLED模块开发e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507名称用途GND电源地VCC电源正（3～5.5V)D0（SCLK）OLED的D0脚，在SP或IIC通信中为时钟引脚D1(SDA)OLED的D1脚，在SPI或IIC通信中为数据引脚RESOLED的RES#脚，用来复位（低电平复位）DCOLED的D/C#E脚，数据和命令控制引脚CSOLED的CS#脚，也就是片选引脚7PINOLED128642.OLED模块开发e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA6315071使用OLED供应商提供的模块程序2根据头文件提供的函数声明，即可编写2.OLED模块开发e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507#ifndefSSD1306_H#defineSSD1306_H#include"STC8A8K64D4.h"#include<string.h>#include<stdlib.h>//数据类型简化宏定义#ifndefuint8#defineuint8unsignedchar#endif#ifndefuint16#defineuint16unsignedint#endif#ifndefuint32#defineuint32unsignedlongint#endif/*OLEDI/O端口定义*/#defineOLED_SCLKP14//SCL#defineOLED_SDINP13//SDA#defineOLED_RSTP12//RES#defineOLED_DCP11//DC#defineOLED_CSP10//CS/*OLEDCommand端口操作*/#defineOLED_CS_Clr()OLED_CS=0#defineOLED_CS_Set()OLED_CS=1#defineOLED_RST_Clr()OLED_RST=0#defineOLED_RST_Set()OLED_RST=1#defineOLED_DC_Clr()OLED_DC=0#defineOLED_DC_Set()OLED_DC=1#defineOLED_SCLK_Clr()OLED_SCLK=0#defineOLED_SCLK_Set()OLED_SCLK=1#defineOLED_SDIN_Clr()OLED_SDIN=0#defineOLED_SDIN_Set()OLED_SDIN=1对常见数据类型如unsignedchar进行了简写的宏定义，进一步提高了代码可读性010203对相关端口操作进行了宏定义对OLED使用的相关端口进行了定义，程序员要按照硬件电路设计对相应端口宏定义2.OLED模块开发e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507/*OLEDPixel*/#defineWIDTH128#defineHEIGHT64#definePAGES8/*OLEDBrightness*/#defineBRIGHTNESS_MIN1#defineBRIGHTNESS_MAX25/*OLEDDriver*/voidOLED_Init(void);//初始化voidOLED_Write_Command(uint8dat);//写命令voidOLED_Clear(void);//清除缓存内容voidOLED_Display(void);//将缓存内容显示到屏幕上voidOLED_Set_Pos(uint8x,uint8y);

//设置内存位置x:0-127，y:0-63voidOLED_WR_Byte(uint8dat,uint8cmd);//写数据voidOLED_DrawChar(uint8x,uint8y,uint8chr);//绘制字符至缓存voidOLED_DrawString(uint8*p);

//绘制字符串至缓存voidOLED_DrawNum(uint32num,uint8len);

//绘制数字至缓存voidOLED_DrwCHS_16x16(uint8chs_no);

//绘制16x16汉字至缓存voidOLED_DrawPixel(uint8x,uint8y);

//绘制一个像素至缓存voidOLED_DrawHLine(uint8x,uint8y,uint8w);//绘制水平线至缓存voidOLED_DrawVLine(uint8x,uint8y,uint8w);//绘制垂直线至缓存voidOLED_DrawLine(uint8x0,uint8y0,uint8x1,uint8y1);//绘制两点线段voidOLED_DrawBMP(uint8x0,uint8y0,uint8x1,uint8y1,uint8*BMP,uint16len);//绘制图片至缓存voidOLED_SetFontWidth(uint8w);//设置ASCII字符宽度voidOLED_Reverse(biti);//反显i=0正常显示i=1反显voidOLED_Overlap(biti);//绘图模式i=0覆盖i=1叠加voidDelay50ms();

//延时函数#endif声明了模块函数2.OLED模块开发e7d195523061f1c01ef2b70529884c179423570dbaad84926380ABC1F97BAEF0C8FC051856578EAB7874501A1FFE158C4981707381814BCC4D9A8E3554438DEE4FBCF5A5B4D2A8B0989AB57E8BAC65EB4C7ADE47CB0CAEE0501E4A226B4263409BF6D490A639D9B9ED09071C131A40B4F721A3CABF56865E37DAC04C7C9B262B2670CBBEB096AEE5D9F6218CBA631507#include<STC8A8K64D4.h>#include<ssd1306.h>#include<bmp.h>/*********常量定义区********/voidMCU_init(void);voidmain(){/****初始化区****/unsignedchari=0,j=0;MCU_init();/******主循环*******/while(1){for(i=0;i<=10;i++)

{OLED_Set_Pos(8,30)