evm5509_aic23_write32.c

来自「dsp 5509a MMC 卡 ID号读取 12Mhzx16=192M」· C语言 代码 · 共 30 行

/*
 *  Copyright 2004 by Spectrum Digital Incorporated.
 *  All rights reserved. Property of Spectrum Digital Incorporated.
 */

/*
 *  ======== evm5509_aic23_write32.c ========
 *  evm5509_AIC23_write32() implementation
 */
 
#include <evm5509.h>
#include <evm5509_aic23.h>

/*
 *  ======== EVM5509_AIC23_write32 ========
 *  Write a 32-bit value to the codec
 */
CSLBool EVM5509_AIC23_write32(EVM5509_AIC23_CodecHandle hCodec, Int32 val)
{
    /* If McBSP doesn't have new data available, return false */
    if(!MCBSP_xrdy(EVM5509_AIC23_DATAHANDLE)) {
        return (FALSE);
    }

    /* Write 32 bit data value to DXR, shift to match format mode */    
    MCBSP_write32(EVM5509_AIC23_DATAHANDLE, val);

    return (TRUE);		     
}