rtIOStreamOpen

Initialize communications channel

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Syntax

streamID = rtIOStreamOpen(argCount, argValues)

Description

example

streamID = rtIOStreamOpen(argCount, argValues) initializes a communication stream to allow the exchange of data between the development computer and target processor.

Examples

Initialize Communications Channel

This code from rtiostreamtest.c initializes a communication stream and checks for errors.

static int openServer(int rtArgc, void * rtArgv [])
{
    streamID = rtIOStreamOpen(rtArgc, rtArgv);
    if (streamID == RTIOSTREAM_ERROR)
    {
        return streamID;
    }
    return RTIOSTREAM_NO_ERROR;
}

Input Arguments

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Number of elements in argValues array.

Parameters for the communications driver.

Output Arguments

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If the function initializes a communication stream, it returns a positive integer that represents the stream handle. Otherwise, it returns -1, which indicates an error.

The rtiostream.h file defines this macro: 

#define RTIOSTREAM_ERROR (-1)

See Also

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Topics

Introduced in R2009a

Embedded Coder Documentation

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