comdvd.c

来自「CS8955控制TV软件。用MCU做模拟电视的控制。」· C语言 代码 · 共 58 行

/******************************************************************************\
     Project Version:   MTKCARDVD()
********************************************************************************
     Filename:          ComDvd.c

     Author:            Alan Chan

     Company:           CoreTek/ACT Company

********************************************************************************
     File Version:      1.01
     File Created:      July 2007

     Compiled Using:    keil uVision2 Version 2.23 

********************************************************************************
     Files Required:

********************************************************************************
     File Description:

********************************************************************************
     File History:

--------------------------------------------------------------------------------
  Date         Name           Description
--------------------------------------------------------------------------------
  Mar. 2007    Alan Chan    File Created
  
\******************************************************************************/
#include "global.h"
#include "comdvd.h"

// Init DVD
void vInitDVD()
{
    mMuteEnable();
    mTVDisable();
    Delay1ms(100);
    mMuteDisable();
}

BOOL DvdChecksumOk(void)
{
    BYTE i, chksum;

    chksum = 0;
    for (i=1;i<COMDVD_BYTE;i++)
    {
        chksum += DvdRxBuf[i];
    }

     return (DvdRxBuf[0]==(chksum&0xff));
}