serial programming guide for posix operating systems

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1、SerialProgrammingGuideforPOSIXOperatingSystems5thEdition,2ndRevisionMichaelR.SweetCopyright1994−1999,AllRightsReserved.SerialProgrammingGuideforPOSIXOperatingSystemsTableofContentsIntroduction......................................................................

2、...................................................................................1Chapter1,BasicsofSerialCommunications...................................................................................................3WhatAreSerialCommunications?.............

3、............................................................................................3WhatIsRS−232?.....................................................................................................................................4SignalDefinitions.....

4、..................................................................................................................4AsynchronousCommunications..............................................................................................................5WhatAreFul

5、lDuplexandHalfDuplex?...................................................................................6FlowControl...............................................................................................................................6WhatIsaBreak?.....

6、....................................................................................................................7SynchronousCommunications................................................................................................................7Accessi

7、ngSerialPorts..............................................................................................................................7SerialPortFiles...........................................................................................................

8、................7OpeningaSerialPort..................................................................................................................8WritingDatatothe