irrecv.c

cirrus的ep7312的各个测试程序

//****************************************************************************
//
// IRRECV.C - Prints characters received via the IR port on the LCD panel.
//
// Copyright (c) 1998-2001 Cirrus Logic, Inc.
//
//****************************************************************************
#include "lib7312.h"
#include <stdio.h>

//****************************************************************************
//
// This program receives characters from the IR port and displays them on the
// LCD panel.  When a '-' character is received, the program exits (but the
// '-' character is not displayed).
//
//****************************************************************************
void
entry(void)
{
    int iX = 0, iY = 0;
    char cChar;
    CPixel sColor;

    //
    // Enable the LCD controller, clear the frame buffer, and turn on the LCD
    // panel.
    //
    LCDColorEnable();
    LCDColorCls();
    LCDColorOn();
    LCDColorBacklightOn();
    LCDColorContrastEnable();

    //
    // Enable the IR port at 9600 baud.
    //
    IREnable(9600);
 
    //
    // Set the pixel color to white
    //
    sColor.r = 15;
    sColor.g = 15;
    sColor.b = 15;

    //
    // Read characters from the IR port until we receive a '-' character.
    //
    while((cChar = IRReceiveChar()) != '-')
    {
        //
        // Print the character which we received.
        //
        LCDColorPrintChar(cChar, iX, iY, sColor);

        //
        // Advance the cursor to the next column.
        //
        iX += 8;

        //
        // If we've just stepped past the right column, then skip down to the
        // next line.
        //
        if(iX == 320)
        {
            //
            // Adjust the cursor to the beginning of the next line.
            //
            iX = 0;
            iY += 8;

            //
            // If we've just stepped below the last line, then move back to the
            // first line.
            //
            if(iY == 240)
            {
                //
                // Move the cursor to the first line.
                //
                iY = 0;
            }
        }
    }

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

    //
    // Turn off the LCD panel.
    //
    LCDColorContrastDisable();
    LCDColorBacklightOff();
    LCDColorOff();

}