parallel port programming c light led

Programming the Parallel Port

... Some popular latch ICs. Name Description 74HCT373 Octal D-type latch 74HCT573 Octal D-type latch Page 24 Counters Counters, as the name suggests, count. The counter has a clock input pin, a reset ... popular counter ICs. Name Description 74LS90 Decade counter 74HCT4024 Six-stage binary counter 74HCT4040 12-Stage binary counter 74HCT190 Synchronous decade up/down counters with mode control 74HCT191 ... 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...

Ngày tải lên: 04/11/2013, 18:15

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Tài liệu Parallel Port Complete: Programming, Interfacing, & Using the PC''''s Parallel Printer Port ppt

Ngày tải lên: 22/01/2014, 11:20

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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....

Ngày tải lên: 04/11/2013, 13:15

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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 an API that contains the functions necessary to success- fully communicate ... 2003 Abstract While devices that use RS−232 and the serial port to communicate are becoming increasingly rare, it is still an important skill to have. Serial port programming, at its most basic level, consists ... non-overlapped communication because overlapped communication requires complicated operating system features such as threads, mutexes, and semaphores making cross-platform operation much harder. 5 Conclusion This...

Ngày tải lên: 05/11/2013, 20:15

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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# ....

Ngày tải lên: 10/12/2013, 14:16

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Tài liệu Interfacing the Standard Parallel Port pptx

... PC http://www.senet.com.au/~cpeacock http://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. This connector is claimed to have a better clip latch, ... Interfacing the Standard Parallel Port http://www.senet.com.au/~cpeacock Interfacing the Standard Parallel Port Page 3 has power. 1284 Type C connectors are recommended for new designs, so we can...

Ngày tải lên: 12/12/2013, 04:15

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Tài liệu Parallel Port Complete- P1 doc

... Communications 305 A PC-to-PC Cable 305 Dos and Windows Tools 306 MS-DOS's Interlnk Direct Cable Connection A PC-to-PC Application 311 Appendices A  Resources 323 B  Microcontroller Circuit ... setting=_ Conflicting device list: I nterrupt Request 03 used by Communications Port (CCiM'2) Direct Memory Access 01 used by: Media Vision Thunder Board Select a port and click OK, or Cancel to ... Older Port Bidirectional 100 Cautions The Circuits The Changes 6 I nterfacing 105 Parallel Port Complete Port Variations 105 Drivers and Receivers Level 1 Devices Level 2 devices Interfacing Guidelines...

Ngày tải lên: 15/12/2013, 13:15

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Tài liệu Parallel Port Complete- P2 doc

... the new, compact, 36-contact IEEE 1284 -C connector 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 the Centronics connector, because it's the same type formerly used on Centronics printers. Other names are parallel- interface connector or just printer connector. IEEE ... other devices usually has a 50-contact connector, but some SCSI devices use a 25-contact D-sub that is identical to the parallel- port& apos;s connector. If you're unsure about which is the parallel- port...

Ngày tải lên: 15/12/2013, 13:15

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Tài liệu Parallel Port Complete- P3 pdf

... that accesses a parallel port is much like writing any application. Two programming topics that are especially relevant to parallel -port programming are where to place the code that communicates ... to a parallel port. The signal that controls the timing is BCLK. One BCLK cycle equals one T-cycle, and a normal read or write to a port takes six T-cycles. During T1, the CPU places the port ... program can call a DLL that contains the critical code in compiled form. Power Basic's DLL Compiler offers an easy way to place code in a compiled DLL, while still programming in a dialect of...

Ngày tải lên: 15/12/2013, 13:15

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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 cycles xchg ... x86 architecture. rdtsc for Pentiums For 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, the rdtsc code fragment above is accurate to one clock cycle. If you...

Ngày tải lên: 22/12/2013, 10:15

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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 ECP mode's protocol for data compression. Application-related Limits The ... watermark. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Programming Issues Ports that support ECP mode can use direct memory access (DMA), where data can transfer between ... Chapter 3 cations a user decides to run. When a hardware interrupt occurs, a DOS program can jump quickly to an interrupt-service routine. Under Windows, the operating system has to decide...