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1、鼠标,键盘,ps/2,usb,串口,转换接线方法(图)一．ps/2鼠标转USB：不是所有PS/2鼠标都可以改为USB鼠标的,可以改的PS/2鼠标的特征:A.电路板一般带有两块集成电路,(一块光电感应,一块按键或USB协议转换,和一只24M的晶体振荡器--早期PS/2鼠标.)B.后期的PS/2鼠标只有一块光电感应芯片,但也有一只24M晶体振荡器.可以改的PS/2鼠标一般都带有晶体振荡器,如果按图改了,但电脑检测出为未知USB设备,而非鼠标设备,说明该PS/2鼠标不能改为USB鼠标了.二.ps/2键盘转USB：到目前为止我所知的ps/2键盘,这是
2、不可能的,只能买个USBT0PS2带芯片的转换线吧.三.ps/2鼠标转串口(RS232)：PS/2鼠标口公插头图,RS-232串口公插头图 接线PS/2公插头 串口公插头+5V 4 4+7+9 DTR+RTS+TRData 1 1 CDGnd 3 3+5 TXD+GNDClock 5 6
3、DSR绝大部分鼠标改接后可直接使用.四.ps/2键盘转串口(RS232)：如上图及接法,但需要对串口编程,设计一个RS232串口信号转标准PS/2键盘信号的程序,实现模拟键盘输入数字或字符What`sthepurposeofholidays?Whatdopeopledoonholidays?Goodmorning,MissTu!Howareyou?WhenIgotthistopic,instantlyIthoughtthatitmaybedifferentwithdifferentpeopleindifferentlife-stages.Fi
4、rst,asforchildren,theyeagertohaveholidayssincetheyloveplaying.Duringtheholidays,manyofthemgathertogether.Theyplaygamesandruneverywhere,andtheyfeelextremelyhappyfromdoingthat.Also,theywillhavetotakeafewdaystodotheirhomework,eveniftheydonotliketo.Second,tothepeoplewhohavestar
5、tedtoworkaftergraduation,everydaytheyfacegreatpressurefromtheirwork,sotheyhopethatthepurposeoftheirholidaysistoenjoythelifewithoutanytense.Duringtheirholidays,theymaywanttohaveagoodsleeporgotoseetheirbestfriendsoreventravelsomeplaceforfun.Well,Ithinkthesepeoplealsohavearesp
6、onsibilitythattheymusthavetoseetheirparentswhohavewaitedforthemathomeforlongtime.Third,theoldhavetheirownideas,too.Ofcoursetheremaybesomeofthemwhowanttotraveloutsidetoseetheworld.However,mostofthemeagerlywishthattheycanbeaccompaniedbytheirchildrenandtheyareverysatisfiedwith
7、thefamliyunion.Inconclusion,thepurposeofholidaysisdifferentwithdifferentpeopleandthethingstheydoarealsonotthesame.Andthat`sall.Thankyou!
