irxmit.c

Cirrus Logic EP7312处理器部分控制程序。

//****************************************************************************
//
// IRXMIT.C - Transmits characters via the IR port.
//
// Copyright (c) 1998-2001 Cirrus Logic, Inc.
//
//****************************************************************************
#include "lib7312.h"
#include <stdio.h>

//****************************************************************************
//
// This program and transmit a string of characters via the IR port.  When 
// a '-' character is read, it is transmitted and then the program exits.
//
//****************************************************************************
void
entry(void)
{
    char cBuf[256] = "This is a test of IRDA transmit. - hope it works";
    int iIdx;

    //
    // Enable the IR port at 9600 baud.
    //
    IREnable(9600);

    //
    // Repeat forever (the exit condition is within the loop).
    //
    while(1)
    {
        //
        // Loop through each character of the buffer.
        //
        for(iIdx = 0; cBuf[iIdx]; iIdx++)
        {
            //
            // Send this character via the IR port.
            //
            IRSendChar(cBuf[iIdx]);

            //
            // If this character is a '-', then stop transmitting characters.
            //
            if(cBuf[iIdx] == '-')
            {
                break;
            }
        }

        //
        // If the last character we transmitted was a '-', then break out of
        // the while loop.
        //
        if(cBuf[iIdx] == '-')
        {
            break;
        }
    }

    //
    // Disable the IR port.
    //
    IRDisable();
}