测控仪器设计 实验4--PC机与单片机串行通讯实验.docx

实验报告(理工类)开课学院及实验室：机械工程学院实验时间:年月日学生姓名学号成绩学生所在学院年级/专业/班12级/自动化/西华理1课程名称测控仪器设计课程代码实验项目名称PC机与单片机串行通讯实验(3)项目代码指导教师项目学分一、实验目的二、实验原理三、实验设备、仪器及材料四、实验步骤（按照实际操作过程）五、实验过程记录(数据、图表、计算等)读取DS18B20温度，通过LCDI602显示出来，并发送给上位机#include<reg52.h># IncIude<intrins.h>#include<stdio.h># defineuintunsignedint# defineucharunsignedchar# define_Nop()_nop_()floatftemp;564p C - 333t Ppp r -_p 111 a r r r t Joooa 2 P Ppd <2 S W nd Prrec -I ddd Qccce IA Ix IA n 111 tf 1 1 1 1 bbbbd Sss s#voiddelayl(void)intk;for(k=0;k<1000;k+):voidlcd_delay(ucharms)掳嘲油25。小voidlcd_busy_wait()Oxff:port0x80);O111 - 30=t a rd111 O _-tr r r Pd rOooPPpal P-t(rsrwendaenddddIdCcc Ch Cvoidlcd_command_write(ucharcommand)Oooo - Io t - = = t - i r a 111 Ott Wrrrprr Ooo - O O y PPpa Pp S - - -t - u S W n a n n b r ed e e - ddddddd Ccccccclcd_delay(20);ICCLCOmmar)dwrite(0x38);lcd_delay(100);ICd二Commandwrite(0x38);lcd_delay(50);ledcommandwrite(0x38);lcd_delay(10);voidlcd_command_write(0x08);lcd_command_write(OxOl);lcd_command_write(0x06);lcd_commancl_write(OxOc);lcd_char_write(ucharx_pos,y_pos,lcd_dat)SX1£Tw,l>1lvu-IiOwt=00)8TXXlXda11Oo=OnWrr-a-OOSSOOS-O+rtOt-port-OrtOlPOu-SCbyO-rsrwendaenenPDYXPdddddddd-F-CcCCCCCCvoiddelay(unsignedinti)while(i-);Init_DS18B20(void)x=0;C;7177d)O4Oe，8;8i2l(o(l(/(gyyy;y1=a=a=aQaS1111nQCQeQe-CUDdDdDdXdReadOneChar(void)unsignedchari=0;unsignedchardat=0;for(i=8;i>0;i)DQ=0;dat>>=l;DQ=1;if(DQ)datI=0x80;delay(4);return(dat);WriteOneChar(unsignedchardat)unsignedchari=0;for(i=8;i>0;i-)DQ=0;DQ=dat&OxOl;delay(5);dat>>=l;DQ=1;ReadTemperature(void)unsignedchara=0;unsignedcharb=0;unsignedintt=0;floattt-O*Init-DS18B0();WriteOneChar(OxCC);WriteOneChar(0x44);Init_DS18B20();WriteOneChar(OxCC);WriteOneChar(xBE);a=ReadOneChar();B=ReadOneChar();t=b;t<<=8;t=ta;tt=t*O.0625:t=tt*10+0.5;f-temp=(tt*10÷0.5)/10;return(t):unsignedcharmun-char-tableLJ=z0123456789abcdef;unsignedchartemptablet-z,Temp:.'C"voiddelay_lms(uchar x)5211j X r (O r ef al hi Ch U W1JvoidInit(void)TMOD=0x20;THl=Oxfd;TLl=Oxfd;SCON=0x50;PCON&=0x00;JRl=1;voidsendchar(char*ch)doSBUF=*ch÷+;while(!TI);TI=O;jwhile(*ch);main()unsignedint,i-0;ucharbuffL4;Init()；ReadTemperature();ledsystemresetO;deyz(2)delay(2);WELA=O;for(i=0;i<12;i+)lcd_char_write(i,0,temp_tableLiJ)；I=ReadTemperature();whiIe(I)(i=ReadTemperature();Oo Ooo 11 11 11 /% %lcd_char_write(6,O,mun_char_tablelcd_char_write(7,O,mun_char_tableledchar_write(9,O,mun_char_table上位机程序：;%f; lw > O ,f off If U (Ub sb( m( r 1-f a-th y n C aid 1 r n e Pe d S sPrivateSubCommand!ClickOMSComml.Settings=*9600,N,8,1MSComml.CommPort=Com.ListIndcx+1MSComml.InBufferSize=8MSComml.OutBufferSize=2IfMSComml.PortOpcn=TrueThenMSComml.PortOpen=FalseMSComml.RThreshold=4MSComml.SThreshold=1MSComml.InputLen=OMSComml.InputMode=comlnputModeTextTfMSComml.PortOpen=FalseThenMSComml.PortOpen=TrueMSComml.InBuffcrCount=OEndSubPrivateSubMSCommlOnComm()DimrecAsStringSelectCaseMSComml.CommEventCaseComEvReceiverec=MSComml.InputTpvt1TPXt=ppMSComml.InBufferCount二OEndSelectEndSubPIMDP(LUMMP02AD2PD3D3PO3D4POSftDSP0j6D6P01D?F2118f2MP2210P2311PZ<A12P2S13P2j611P2JA1SP3X>RXDP3.VTXDP32NTD"P33rtNTP3.4JfTDns,P3SWR"P37而六、实验结果分析及问题讨论