福州大学物理与信息工程学院印制电路板设计实践报告专业：电子科学与技术班级：2班姓名：学号：指导老师：林培杰2017年6月目录一、设计分析..........................................................................................................................1二、本设计对应的毕业要求细化指标...................................................................................2三、设计过程..........................................................................................................................33.1元器件库建立....................................................................................................................33.2规则设定............................................................................................................................63.3布局和布线分析.................................................................................................................8四、心得体会................................................................................................................................141一、设计分析123456ABCD654321DCBATitleNumberRevisionSizeBDate:22-Jun-2016SheetofFile:C:\DocumentsandSettings\Administrator\\AAA.DDB桌面DrawnBy:C1104C2100u132VVGNDINOUTU178L05330RP101P112P123P134P145P156P167P178RESET9RXD10TXD11INT012INT113T014T115WR16RD17P0039P0138P0237P0336P0435P0534P0633P0732P2021P2122P2223P2324P2425P2526P2627P2728X218X119EA/VP31AT89S51U2AT89S51P00P01P02P03P04P05P06P07P20P21P22P23P24P25P26P27P30P31P32P33P34P36P37P3512345678J1CON812345678J2CON812345678J3CON8P00P01P10P02P11P03P12P04P13P05P14P06P15P07P16P17P20P21P22P23P24P25P26P27P10P11P12P13P14P15P16P17P30P31P32P33P34P35P36P3712345678com9U3VCCVCCVCCP00P01P02P03P04P05P06P0712345678com9U10矩阵键盘P10P11P12P13P14P15P16P17R210kR310kR410kR510kR910KVCCC330pC430pCRY12MR81KVCC+C510u复位RESETRESETVCCBELLR710K蜂鸣器P32RESETP17P15下载P16+C610uF+C710uF+C810uF+C910uFC1+1C1-3C2+4C2-5VCC16V+2V-6GND15T2out7R2in8R2out9T2in10U4串行通信P31P30AT24C02GNDSDASCLWPVCCA0A1A2U5AT24C02R115.1KR105.1KVCCCS1SK2DI3DO4GND5ORG6DC7VCC8U693C46R10P37P36P35G19DIR1A12B118A23B217A34B316A45B415A56B514A67B613A78B712A89B811U1174LS245P00P01P02P03P04P05P06P07P00_outP01_outP02_outP03_outP04_outP05_outP06_outP07_outP00_outP01_outP02_outP03_outP04_outP05_outP06_outG5F10E1D2C4B7A111H122H93H84H6DP3U13SMGP20_outP21_outP22_outP23_out电源指示LCD接口四位数码管VCCVCC_SMGVCC_LEDVCC_LCDVCC_BEEPVCC_LEDVCC_LCDVCC_KEYVCC_BEEPSPI接口VCC_SPIVCC_I2CVCC_I2CVCC_SPI123HONGWAICON3VCC_HWVCC_HWP331234S11234S51234S91234S131234S21234S61234S101234S141234S31234S71234S111234S151234S41234S121234S1612345678J4CON8VCC_KEY1122LED11122LED21122LED31122LED41122LED51122LED61122LED71122LED81122LED1234S8P20P21P22P23P24P25P26P27VCC12345678910111213141516J_LCDHEADER16VCin162738495RS232DB912345678910JSP12345678910111213141516SHEADER8X2123POWER-DYVCinP07_outRs2001234RESET1234INTOVCC12J6CON2VCC_LCD电源选择红外中断复位扩展口LED灯Q2MMBTA92Q3MMBTA92Q4MMBTA92Q5MMBTA92RO31KRO21KRO11KRO41KP20P21P22P23P20_outP21_outP22_outP23_outVCC_SMGP36P37Q1MMBTA92R610KP10P11P12P13图1单片机系统原理图这是51单片机最小系统原理图，该系统采用RS232串口通信，图中还包含了LCD模块、LED模块、矩阵键盘模块、蜂鸣器模块、红外以及数码管模块，也引出了SPI的通信接口，此外又用排针将单片机大部分引脚独立引出，可以进行系统拓展，能更方便的进行各种实验。2二、本设计对应的毕业要求细化指标课程要求（毕业细化指标）本...
