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Description
When I wrote the first edition of this book, the RS-232 serial port was the workhorse of PC interfaces. Modems and scores of other peripherals connected to PCs via the serial ports that were present on every machine.When the Universal Serial Bus (USB) took hold in the late 1990s, many predicted that serial ports would soon be obsolete. Plenty of peripherals that formerly used the serial port have switched to USB. But some devices can’t use USB or have requirements that USB alone can’t provide. Many embedded systems use serial ports because they’re inexpensive and less complex to program compared to USB. Serial ports can use longer cables than USB allows. And the RS-485 serial interface supports networks suitable for many monitoring and control applications.
While most PCs no longer have built-in serial (COM) ports, the ports are easy to add via USB converters. With converters, the number of expansion slots no longer limits the number of serial ports a system can have. The SerialPort class included in Microsoft’s .NET Framework shows that PC applications continue to find COM-port communications useful.
Content:-
Introduction
Acknowledgements
1. Options and Choices
2. Formats and Protocols
3. COM Ports on PCs
4. Inside RS-232
5. Design RS-232 Links
6. Inside RS-485
7. Design RS-485 Links and Networks
8. Going Wireless
9. Using .NET's SerialPort Class
10. Managing Ports and Transfers in .NET
11. Ports for Embedded Systems
12. Network Programming
13. An RS-485 Network
14. Inside USB
15. using Special-Function USB Controllers
16. Using Generic USB Controllers
Index
Author Details
"Jan Axelson"
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