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Kport Direct Access I/O Ports under Win NT/2000/XP

2006-05-15 14:35 423 查看
ByGüerinoPalaciosTwosimplefunctionforaccesi/oportsskipingH.A.L

Downloadsourcefiles-803Kb

Downloaddemoproject-102Kb



Introduction

IwritethisDLLfordirectaccessi/oportsinwindowsNT/2K/Xp

Background

ForcompileallprojectyouneedVC71-2003.Forcompilekioport.sysyoumayhavetoinstallDDK.KioportisbasedinPortTalk.sysfromarticle:“BeyondLogicPortTalkI/OPortDriver”,http://www.beyondlogic.org/,and“ADDK'sprojectwizardforVC2003”articlehttp://www.thecodeproject.com/macro/ddkwizard.asp.

Usingthecode

1-Copykioport.sysin/windows/system32/drivers

2-Addkioport.regtoregisterwindows

3-Rebootwindowsforactivateserviceinregisterofwindows.

4-Addkport.hinyourprojectandkport.lib

5-PutKport.dllinyoursamedirectoryofapplication.

UsingtheKport-DLL
issoeasy.Hereisthefunctiondefinitionandtheexplanationfollows:

//Returnsavaluefromspecificports.
BYTEInportb(WORDPortNum);

//Writeavaluetospecificports.
voidOutportb(WORDPortNum,BYTEbyte);



PortNum:isanumberportforexample0x378(LPT1).

BYTE:datatosendforspecificPortNuminOuportb,anddatareceivedinInportb.




HowuseSample-Dlg

1–Writeanumberbellowtext“WriteValue()”,andclickinWritebutton.

2-ClickinReadbutton.

History
Firstversionapril3/2005.

AboutGüerinoPalacios

                                            

                                        

                        
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