传送带产品计数器的设计(LCD显示)

目录摘要........................................................................................................................................11题目....................................................................................................................................22电路原理图的设计.............................................................................................................22.1传送带产品计数器（LED显示）电路原理图...............................................................22.2LED显示模块................................................................................................................22.3置数模块......................................................................................................................33软件系统设计....................................................................................................................43.1软件系统的流程结构...................................................................................................43.2C51程序....................................................................................................................43.3计数程序模块................................................................................................................74仿真及调试......................................................................................................................105总论..................................................................................................................................11参考文献.........................................................................................................................12致谢................................................................................................................................131摘要MCS-51系列单片机LCD显示LCM160221题目传送带产品计数器的设计（LCD显示）功能要求：用MCS-51系列单片机作为控制器；采用LCM1602进行计数显示；采用光电传感器计数；用按键控制传送带电机的起停；用拨码盘预置计数值，计数到预定值时，传送带停止，按键后传送带继续运行。2电路原理图的设计2.1传送带产品计数器（LED显示）电路原理图硬件原理图如下图所示，包括显示模块，按键模块，电机控制模块，置数模块。2.2LED显示模块使用4位LED数码管来显示数字，通过NPN管来驱动数码管。XTAL218XTAL119ALE30EA31PSEN29RST9P0.0/AD039P0.1/AD138P0.2/AD237P0.3/AD336P0.4/AD435P0.5/AD534P0.6/AD633P0.7/AD732P1.01P1.12P1.23P1.34P1.45P1.56P1.67P1.78P3.0/RXD10P3.1/TXD11P3.2/INT012P3.3/INT113P3.4/T014P3.7/RD17P3.6/WR16P3.5/T115P2.7/A1528P2.0/A821P2.1/A922P2.2/A1023P2.3/A1124P2.4/A1225P2.5/A1326P2.6/A1427U1AT89C51OFFON12345678161514131211109DSW1DIPSW_8234567891RP110*865412U2OPTOCOUPLER-NPNR1100R22kR310kU1(P3.4/T0)R55kR410kRL112VQ5NPND11N4001VCC+12V+12vVCCVCC急停计数重启动电机计数值设定D714D613D512D411D310D29D18D07E6RW5RS4VSS1VDD2VEE3LCD1LM016LRV11kVCC32.3置数模块使用8位薄码盘和5位薄码盘组合来组成最高13位的二进制数，即8191的最大置数值，很好的利用了4位数码管。D714D613D512D411D310D29D18D07E6RW5RS4VSS1VDD2VEE3LCD1LM016LOFFON12345678161514131211109DSW1DIPSW_8计数值设定65412U2OPTOCOUPLER-NPNVCCVCC43软件系统设计3.1软件系统的流程结构3.2C51程序/*-----------------------------------------------------------文件名：lcd1602.h头文件功能：LCD1602驱动函数的声明-----------------------------------------------------------*/#ifndef_LCD1602_H_#define_LCD1602_H_#includereg52.h#defineuintunsignedint#defineucharunsignedchar5//接口定义sbitLcdRs=P2^0;sbitLcdRw=P2^1;sbitLcdEn=P2^2;sfrDBPort=0x80;//P0口为LCD数据总线/*-----------------------------------------------------------功能：LCD初始化函数-----------------------------------------------------------*/voidLCD_Initial();/*-----------------------------------------------------------功能：LCD显示字符（ASIIC码）函数参数：x-列0~15；y-行0~1；str-要显示的字符串指针-----------------------------------------------------------*/voidLCD_Prints(ucharx,uchary,uchar*str);#endif/*-----------------------------------------------------------文件名：lcd1602.c函数功能：LCD1602的驱动函数原理：采用普通IO口方式模拟LCD1602时序，未采用总线方式-----------------------------------------------------------*/#includeREG52.H#includeintrins.h//次头文件中定义有_nop_()函数#includelcd1602.h/*-----------------------------------------------------------功能：内部等待函数返回参数：P0数据-----------------------------------------------------------*/ucharLCD_Wait(void){LcdRs=0;LcdRw=1;_nop_();LcdEn=1;_nop_();//while(DBPort&0x80);/*在用Proteus仿真时，屏蔽此语句，否则会进入死循环，实际硬件操作时打开此语句.*/LcdEn=0;6returnDBPort;}/*-----------------------------------------------------------功能：写LCD命令/数据函数参数：style为写命令/数据，0-命令，1-数据；input为写入的8位命令/数据-----------------------------------------------------------*/#defineLCD_COMMAND0//命令#defineLCD_DATA1//数据#defineLCD_CLEAR_SCREEN0x01//清屏#defineLCD_HOMING0x02//光标返回原点voidLCD_Write(bitstyle,ucharinput){LcdEn=0;LcdRs=style;LcdRw=0;_nop_();DBPort=input;_nop_();LcdEn=1;_nop_();LcdEn=0;_nop_();LCD_Wait();}/*-----------------------------------------------------------功能：设置LCD显示模式参数：DisplayMode见下面的定义-----------------------------------------------------------*///显示模式定义#defineLCD_SHOW0x04//显示开#defineLCD_HIDE0x00//显示关#defineLCD_CURSOR0x02//显示光标#defineLCD_NO_CURSOR0x00//无光标#defineLCD_FLASH0x01//光标闪动#defineLCD_NO_FLASH0x00//光标不闪动voidLCD_SetDisplay(ucharDisplayMode){LCD_Write(LCD_COMMAND,0x08|DisplayMode);}/*-----------------------------------------------------------功能：设置LCD输入模式参数：InputMode见下面的定义-----------------------------------------------------------*/7#defineLCD_AC_UP0x02//地址计数器增加