tadc.c.svn-base

最新火热的ＣＸ３２ 源代码

/**
 *  This code and information is part of Trident DPTV API (TDAPI)
 *
 *  Copyright (C) Trident Multimedia Technologies (Shanghai) Co., Ltd.
 *         2001  All rights reserved.
 *
 *  This file contains definitions and macros related to M16C/60 ADC.
 *
 *  Revision:
 *  06/3/2004     Created by Ivan.
 *
 */
#include "tdefs.h"
#include "tio.h"
 Byte tdGetADCValue(Byte ucChannel)
{

#if 0  //  ADC is initialed outside, and ADC is always started.
    //setting the ADCON1.
    INTE0AD &=0x8F;  // 10001111b
	ADM0D1 = 0xC1;   // 11000001b
	ADMOD0 = 0x07;   // 00000111b
    while(tdTestSFRBitTrue(ADMOD0, _BIT7_));
#endif

    switch(ucChannel)
    {
    case 0:
        return tdReadSFR(ADREG04H);
    case 1:
        return tdReadSFR(ADREG15H);
    case 2:
        return tdReadSFR(ADREG26H);
    case 3:
        return tdReadSFR(ADREG37H);
    }

    return 0;
}