windows serial port programming example c
Serial port programming for Windows and Linux
... initializedDCB object using the function SetCommState().3. Set the size of the serial port read and writebuffers using SetupComm().Code to accomplish this can be found below.DCB dcb; //create the dcb//first, ... 2003AbstractWhile devices that use RS−232 and the serial port tocommunicate are becoming increasingly rare, it is stillan important skill to have. Serial port programming, at its most basic level, consists ... to be changed//CREAD says to enable the receiveroptions .c_ cflag |= (CLOCAL | CREAD);//apply the settings to the serial port //TCSNOW means apply the changes now//other valid options include://...
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Serial Port Complete
... Framework class library can use the SerialPort class toaccess COM ports. Some USB devices function as virtual COM ports, whichapplications can access in the same way as physical serial ports. ... system’s CPU. Any PC with a free expansion slot can add this type of port on an expansion card.ã RS-232 ports on PC Cards (also called PCMCIA cards). Any PC with a freePC-Card slot can use these.ã ... networks.On PCs, ports that applications can access as COM ports include these:ã RS-232 ports on older motherboards or on expansion cards.ã Ports that connect to a PC via a USB converter that...
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Tài liệu Linux IO Port Programming pptx
... of clock cycles taken; e.g., for a 50 MHz processor (e.g.486DX−50 or 486DX2−50), one clock cycle takes 1/50000000 seconds (=200 nanoseconds).Instruction i386 clock cycles i486 clock cyclesxchg ... x86 architecture.rdtsc for PentiumsFor Pentiums, you can get the number of clock cycles elapsed since the last reboot with the following C code(which executes the CPU instrution named RDTSC): ... For more accurate times,gettimeofday() is accurate to about a microsecond (but see above about scheduling). For Pentiums, therdtsc code fragment above is accurate to one clock cycle.If you...
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Tài liệu chương 5: Hoạt động của port nối tiếp (Serial Port) pptx
... Xóa c ngắt thu (RI=0) ⇒ Vi c thu dữ liệu bắt ñầu: C c xung clock dịch bit ñư c gởi ra chân TxD và dữ liệu từ thiết bị bên ngoài ñư c dịch vào chân RxD bởi c c xung clock dịch bit này (vi c ... SM0: Serial Mode 0Bit 0 chọn chế độ c a port noái tieáp. C c chế ñộ c a port nối tiếp: Trư c khi sử dụng port nối tiếp c n phải: Chương 5: Hoạt ñộng c a port nối tiếp (Serial Port) . ... KHIỂN PORT NỐI TIẾP (SCON): Thanh ghi SCON (Serial Control Register): chứa c c bit dùng ñể ñiều khiển chế ñộ hoạt ñộng và báo trạng thái c a port nối tiếp. C u tr c của thanh ghi SCON: SCON: Serial...
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SERIAL PORT potx
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VHDL Programming by Example 4th Edition
... 183Generics in Configurations 185Generic Value Specification in Architecture 188Generic Specifications in Configurations 190Board-Socket-Chip Analogy 195Block Configurations 199Architecture Configurations ... muxdevice. There is an inverter component, an andgatecomponent and an orgatecomponent. Each of these components is declaredin the architecture declaration section, which is between the architecturestatement ... std_logic);END test;ARCHITECTURE test_arch OF test ISCOMPONENT and2GENERIC(rise, fall : TIME := 10 NS;GENERIC(load : INTEGER := 0); PORT ( a, b : IN std_logic; PORT ( c : OUT std_logic);END COMPONENT;BEGINU1:...
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Foreword và Predace của VHDL Programming by Example 4th Edition_01
... description capability ofVHDL. Chapter 1 discusses how VHDL design relates to schematic baseddesign, and introduces the basic terms of the language. Chapter 2 describessome of the basic concepts ... advanced VHDLfeatures to the reader. Chapter 7 discusses how VHDL configurationscan be used to construct and manage complex VHDL designs. Each ofthe different configuration styles are discussed ... VHDL, including the different delay mecha-nisms available, how to use instance specific data, and defines VHDL dri-vers. Chapter 2 discusses concurrent statements while Chapter 3 introducesthe...
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Programming Serial and Parallel Ports
... ");switch (thePortID.getPortType()) {case CommPortIdentifier .PORT _SERIAL: thePort = thePortID.open("DarwinSys DataComm",TIMEOUTSECONDS * 1000);SerialPort myPort = (SerialPort) thePort; Example ... {new CommPortOpen(null).converse();System.exit(0);}/* Constructor */public CommPortOpen(Frame f)throws IOException, NoSuchPortException, PortInUseException,UnsupportedCommOperationException ... */CommPortIdentifier thePortID;/** The chosen Port itself */CommPort thePort;public static void main(String[] argv)throws IOException, NoSuchPortException, PortInUseException,UnsupportedCommOperationException...
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Web Client Programming with Perl-Chapter 6: Example LWP Programs-P1
... different resource in a predictable manner. For example, a client may request 0100.gif at 1 a.m., 0200.gif at 2 a.m, etc. A periodic client might check some data and perform action when a condition ... $opt _c )) { print_help( ); exit(0); } # my $tracker = new FedEx $cgi, $opt_e, $opt_ p; my $keep_checking = 1; First, we declare local variables, call all necessary modules, get command-line ... reviewed the important parts of the FedEx package, let's take a look at the complete example. Note how one creates a FedEx object and calls it. We'll come back to this example and redo...
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Web Client Programming with Perl-Chapter 6: Example LWP Programs-P2
... we keep track of which documents don't exist, what their content types are, which ones are local to the web server, which are not local, and which are not HTTP-based. After scan( ) finishes, ... extracted from that page and pushed on the queue. To keep track of which URLs have already been visited (and not to push them back onto the queue), we use an associative array called %touched ... associate any URL that has been visited with a value of 1. There are other useful variables that are also used, to track which document points to what, the content-type of the document, which...
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Programming the Parallel Port
... Some popular latch ICs.Name Description74HCT373 Octal D-type latch74HCT573 Octal D-type latchPage 24CountersCounters, as the name suggests, count. The counter has a clock input pin, a reset ... popular counter ICs.Name Description74LS90 Decade counter74HCT4024 Six-stage binary counter74HCT4040 12-Stage binary counter74HCT190 Synchronous decade up/down counters with mode control74HCT191 ... The choice of a communication link also depends on the digital circuit, so the question becomes a sort of a chicken and egg problem. Options for the digital circuit include:ã The digital circuit...
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Tài liệu Programming Microsoft Windows with C# pptx
... obscure code. C# also supports a goto in the switch and case construction to branch to another case: switch (a) { case 1: b = 2; goto case 3; case 2: c = 7; goto default; case ... output. ConsoleAdder.cs // // ConsoleAdder.cs â 2001 by Charles Petzold Chapter 1: Console Thyself Overview In that succinct and (perhaps consequently) much-beloved classic tutorial The C Programming ... version of the program. CsDateConstructors.cs // // CsDateConstructors.cs â 2001 by Charles Petzold // using System; class CsDateConstructors { public static void Main() { try ...
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Tài liệu Windows PowerShell Programming P2 pptx
... Page 24Chapter 2: Extending Windows PowerShellpublic override Collection<CmdletConfigurationEntry>Cmdlets{get{if (cmdlets == null){cmdlets = new Collection<CmdletConfigurationEntry>();cmdlets.Add(new ... this location: C: \ Windows \Microsoft.NET\Framework64\v2.0.50727\csc.exe C: \ Windows \Microsoft.NET\Framework64\v2.0.50727\installutil.exeThe path tocsc.exeon your machine could ... implement cmdlet Write-Hi[Cmdlet(VerbsCommunications.Write, "Hi")]public class SayHi : Cmdlet{protected override void ProcessRecord(){WriteObject("Hi, World!");}}// Code...
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Tài liệu Windows PowerShell Programming P1 ppt
... [Cmdlet Get-PSSnapin Get-PSSnapin [[-Cmdlet Get-Runspace Get-Runspace [[-Cmdlet Get-Service Get-Service [[-NCmdlet Get-TraceSource Get-TraceSourceCmdlet Get-UICulture Get-UICulture [-Cmdlet ... Get-ItemPropertyCmdlet Get-Location Get-Location [-PCmdlet Get-Member Get-Member [[-NaCmdlet Get-PfxCertificate Get-PfxCertificaCmdlet Get-Process Get-Process [[-NCmdlet Get-PSDrive Get-PSDrive [[-NCmdlet ... 29PSObject 29Constructing a PSObject 30PSObject(Object) 31PSObject() 31PSObject.AsPSObject(someObject) 32ImmediateBaseObject and BaseObject 33Members 34PSMemberInfoCollection 35ReadOnlyPSMemberInfoCollection...
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Tài liệu Programming by Example docx
... 2-6. This circuit could be part ofa clocking scheme in a complex device being modeled. It probably wouldnot be the entire circuit, but only a part of the circuit used to generatethe clock to the ... FOR;END muxcon1;The function of the configuration statement is to spell out exactlywhich architecture to use for every component instance in the model. Thisoccurs in a hierarchical fashion. ... description capability ofVHDL. Chapter 1 discusses how VHDL design relates to schematic baseddesign, and introduces the basic terms of the language. Chapter 2 describessome of the basic concepts...
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Tài liệu Parallel Port Complete: Programming, Interfacing, & Using the PC''''s Parallel Printer Port ppt
... autorrnatic setting=_Conflicting device list:Interrupt Request 03 used byCommunications Port (CCiM'2)Direct Memory Access 01 used by:Media Vision Thunder BoardSelect a port and click OK,orCancelto ... OK,orCancelto make no changes.CancelFigure 1-1: In Windows 95, you can select a port configuration in the DeviceManager's Resources Window. A message warns if Windows detects any systemconflicts ... 36-contact connector as theCentronics connector, because it's the same type formerly used on Centronicsprinters.Other names are parallel-interface connector or just printer connector.IEEE...
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