_csl_prevsetnf.c

TI的DM6446的硬件平台搭建的相关例子

/** @file _csl_prevSetNF.c
 *
 *  @brief    File for functional layer of CSL API @a CSL_prevSetNF()
 *
 *  Description
 *    - The @a CSL_prevSetNF() function definition & it's associated
 *      functions
 *
 *  @date 18th October, 2004
 *  @author Vignesh LA.
 */

#include <csl_prev_aux.h>

#pragma CODE_SECTION (CSL_prevSetNF, ".text:csl_section:prev");

/** @brief Configures the Noise filter using the value passed
 */
CSL_Status  CSL_prevSetNF(
    /** Pointer to the object that holds reference to the
     *  instance of PREV requested after the call 
	 */
    CSL_PrevHandle                         hPrev,
    /** Noise filter data used to set it up.
	 */
    CSL_PrevNFData						   *data
	){
	
	Uint32 i;

    if(data == NULL) return (CSL_ESYS_INVPARAMS);

	hPrev->regs->NF = CSL_FMK(PREV_NF_STRNGTH, data->nfStrength);

	/** Load noise filter table if it is passed.
	*/
	if(data->nfTable != NULL)
	{
		CSL_PREV_0_REGS->SET_TBL_ADDRESS = 0x0C00;
		for( i=0;i<256;i++) {
	    	CSL_PREV_0_REGS->SET_TBL_DATA = data->nfTable[i];
		}
	}

    return (CSL_SOK);
}