目录摘要.........................................................................................................................21题目......................................................................................................................32电路原理图的设计..................................................................................................32.1传送带产品计数器（LED显示）电路原理图.........................................................32.2LED显示模块...................................................................................................32.3置数模块.........................................................................................................43软件系统设计........................................................................................................53.1软件系统的流程结构.........................................................................................53.2C51程序........................................................................................................53.3计数程序模块....................................................................................................84仿真及调试.........................................................................................................115总论....................................................................................................................11参考文献..............................................................................................................13致谢....................................................................................................................14摘要MCS-51系列单片机LCD显示LCM1602PAGE\*MERGEFORMAT111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。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D714D613D512D411D310D29D18D07E6RW5RS4VSS1VDD2VEE3LCD1LM016LRV11kVCC2.2LED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。PAGE\*MERGEFORMAT11D714D613D512D411D310D29D18D07E6RW5RS4VSS1VDD2VEE3LCD1LM016L2.3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。OFFON12345678161514131211109DSW1DIPSW_8计数值设定65412U2OPTOCOUPLER-NPNVCCVCCPAGE\*MERGEFORMAT113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_#include#defineuintunsignedint#defineucharunsignedchar//接口定义PAGE\*MERGEFORMAT11sbitLcdRs=P2^0;sbitLcdRw=P2^1;sbitLc...
