parallel port programming c light led
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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O''''Reilly - Programming C#
... general concept of classes, interfaces, delegates (which support callbacks), reference types, and value types. Additionally, .NET includes a Common Language Specification (CLS), which provides ... interface, a C# class in effect promises to provide the functionality the interface specifies. C# also provides support for structs, a concept whose meaning has changed significantly from C+ +. ... possible to call components from C# applications into COM and to call components from COM into C# . Chapter 22 describes how this is done. The book concludes with an appendix of C# Keywords....
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Serial port programming for Windows and Linux
... the port, configur-ing the port, reading and writing to the port, and fi-nally, closing the port. It is possible then to create anAPI that contains the functions necessary to success-fully communicate ... 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 ... non-overlapped communication because over-lapped communication requires complicated operat-ing system features such as threads, mutexes, andsemaphores making cross-platform operation muchharder.5 ConclusionThis...
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Tài liệu Programming C# pdf
... New Project window. Figure 2-1. Creating a C# console application in Visual Studio .NET Programming C# 13 use. The CLR's garbage collector checks the heap for unreferenced objects and ... specification called the Common Type System (CTS) that all .NET components must obey. For example, everything in .NET is an object of a specific class that derives from the root class called ... interact with COM components created outside the managed environment of the .NET Framework. It is possible to call components from C# applications into COM and to call components from COM into C# ....
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Tài liệu Interfacing the Standard Parallel Port pptx
... PChttp://www.senet.com.au/~cpeacockhttp://www.geocities.com/SiliconValley/Bay/8302/ Copyright February 1998 Craig Peacock.Any errors, ideas, criticisms or problems, please contact the author at cpeacock@senet.com.au ... pin Centronics Connector found on most printers.IEEE 1284 Type C however, is a 36 conductor connector like the Centronics, but smaller. Thisconnector is claimed to have a better clip latch, ... Interfacing the Standard Parallel Port http://www.senet.com.au/~cpeacockInterfacing the Standard Parallel Port Page 3has power. 1284 Type C connectors are recommended for new designs, so we can...
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Tài liệu Parallel Port Complete- P1 doc
... Communications 305A PC-to-PC Cable 305Dos and Windows Tools 306MS-DOS's InterlnkDirect Cable ConnectionA PC-to-PC Application 311AppendicesAResources 323BMicrocontroller Circuit ... 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 ... Older Port Bidirectional 100CautionsThe CircuitsThe Changes6Interfacing105 Parallel Port Complete Port Variations 105Drivers and ReceiversLevel 1 DevicesLevel 2 devicesInterfacing Guidelines...
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Tài liệu Parallel Port Complete- P2 doc
... the new, compact, 36-contact IEEE 1284 -C connec-tor described in Chapter 6.The connector on the computer is female, where the individual contacts are sock-ets, or receptacles. The cable has ... 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 ... otherdevices usually has a 50-contact connector, but some SCSI devices use a 25-con-tact D-sub that is identical to the parallel- port& apos;s connector.If you're unsure about which is the parallel- port...
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Tài liệu Parallel Port Complete- P3 pdf
... that accesses a parallel port is much like writingany application. Two programming topics that are especially relevant to paral-lel -port programming are where to place the code that communicates ... to a parallel port. The signal that controls the timing isBCLK.OneBCLKcycle equals one T-cycle, and a normal read or write to a port takes sixT-cycles. During T1, the CPU places the port ... program can call a DLL that contains the critical code in com-piled form. Power Basic's DLL Compiler offers an easy way to place code in acompiled DLL, while still programming in a dialect of...
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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 Parallel Port Complete- P4 doc
... that knows how to decompress what it receives. Parallel ports in ECP mode can automatically decompress incoming data that uses ECPmode's protocol for data compression.Application-related LimitsThe ... watermark. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Programming IssuesPorts that support ECP mode can use direct memory access (DMA), where datacan transfer between ... Chapter 3cations a user decides to run. When a hardware interrupt occurs, a DOS programcan jump quickly to an interrupt-service routine. Under Windows, the operatingsystem has to decide...
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Tài liệu Parallel Port Complete- P5 doc
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Tài liệu Parallel Port Complete- P6 pptx
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Tài liệu Parallel Port Complete- P7 doc
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Tài liệu Parallel Port Complete- P8 pptx
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Tài liệu Parallel Port Complete- P9 docx
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Programming C# 4.0 pdf
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