DSP 5509音频信号低通滤波.docx

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DSP 5509音频信号低通滤波.docx

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DSP 5509音频信号低通滤波.docx

DSP5509音频信号低通滤波

#include

//#include"hamming30fdacoefs.h"

#include"hamming30hipsfdacoefs.h"//30pointshammingwindowhighpassFIR

#include"bandpass101fdacoefs.h"//101pointsbandpassFIR,300Hz-1.5kHz

//#include"eq110fdacoefs.h"

//#include"eq110hifdacoefs.h"

//#definePI3.14159265358979323846//PIvalue

//#defineCONV32767.999999//Q15->floatconversionvalue=2^15-2^1-15

#defineCODEC_ADDR0x1A//AIC23I2Caddress

#defineST1_55*（int*）0x03

#defineST3_55*（int*）0x04

#defineLBDS1（*（（unsignedint*）0x600400））

#definekeyboard（*（（unsignedint*）0x600C00））

#defineGPIO_SEL（*（（unsignedint*）0x400000））

#definehNX1//Firinputdatalength

//#defineNH31

unsignedintuLED[10]={0x0db,0x50,0x6b,0x73,0xf0,0x0b3,0x0bb,0x51,0x0fb,0x0f3};

DATA*aic23data,*voicedata;//voiceinput&outputdatapointer

DATA*dbptr/*=&db[0]*/;//lopassfliterbuffer

DATA*dbptrhi;//hipassfliterbuffer

//voidDelay（unsignedintnDelay）;//延时子程序

voidaic_init（）;//initaic23

unsignedinttime=0;

unsignedinttemp_key,temp_key1,firflag;//keybuffer&fliterselectflag

/**********************************************************************************************************/

voiddelay（Uint32k）//truedelayfunc

{

while（k--）;

}

/***********************************************************************************************************/

voiddealkey（）//keyfunc

{

temp_key=keyboard;//readkeydata

temp_key=temp_key&0x00ff;

if（0xff!

=temp_key）//compare

{

temp_key1=temp_key;

delay（150）;

temp_key=keyboard;

temp_key=temp_key&0x00ff;

if（temp_key==temp_key1）

{

//time++;

//keycode[time]=temp_key;

switch（temp_key）

{

case0x0fb:

{

LBDS1=0x75;//L

//recordflag=1;

firflag=0;//0:

lowpass

}

break;

case0x0f7:

{

LBDS1=0x56;

//replayflag=1;

}

break;

case0x0ef:

{

LBDS1=0x07;//H

//stopflag=1;

firflag=1;//1:

highpass

}

break;

case0x0df:

{

LBDS1=0;

//overflag=1;

}

break;

case0x0bf:

LBDS1=0x0ff-uLED[5];//LEDjustforfun

break;

case0x07f:

LBDS1=0x0ff-uLED[6];

break;

case0x0fd:

LBDS1=0x0ff-uLED[7];

break;

case0x0fe:

LBDS1=0x0ff-uLED[8];

break;

default:

break;

}

/*********************************************************************************************************/

/****************************************************************************************************************/

/*锁相环的设置*/

PLL_ConfigmyConfig={

0,//IAI:

thePLLlocksusingthesameprocessthatwasunderway

//beforetheidlemodewasentered

1,//IOB:

IfthePLLindicatesabreakinthephaselock,

//itswitchestoitsbypassmodeandrestartsthePLLphase-locking

//sequence

24,//PLLmultiplyvalue;multiply24times

1//Divideby2PLLdividevalue;itcanbeeitherPLLdividevalue

//（whenPLLisenabled）,orBypass-modedividevalue

//（PLLinbypassmode,ifPLLmultiplyvalueissetto1）

};

EMIF_Configemiffig={

0x221,//EGCR:

theMEMFREQ=00,theclockforthememoryisequaltocpufrequence

//theWPE=0,forbidenthewritingpostingwhenwedebugtheEMIF

//theMEMCEN=1,thememoryclockisreflectedontheCLKMEMpin

//theNOHOLD=1,HOLDrequestsarenotrecognizedbytheEMIF

0xFFFF,//EMI_RST:

anywritetothisregisterresetstheEMIFstatemachine

0x3FFF,//CE0_1:

CE0spacecontrolregister1

//MTYPE=011,SynchronousDRAM（SDRAM）,16-bitdatabuswidth

0xFFFF,//CE0_2:

CE0spacecontrolregister2

0x00FF,//CE0_3:

CE0spacecontrolregister3

//TIMEOUT=0xFF;

0x3FFF,//CE1_1:

CE0spacecontrolregister1

0xFFFF,//CE1_2:

CE0spacecontrolregister2

0x00FF,//CE1_3:

CE0spacecontrolregister3

0x1FFF,//CE2_1:

CE0spacecontrolregister1

0xFFFF,//CE2_2:

CE0spacecontrolregister2

0x00FF,//CE2_3:

CE0spacecontrolregister3

0x1FFF,//CE3_1:

CE0spacecontrolregister1

0xFFFF,//CE3_2:

CE0spacecontrolregister2

0x00FF,//CE3_3:

CE0spacecontrolregister3

0x2911,//SDC1:

SDRAMcontrolregister1

//TRC=8

//SDSIZE=0;SDWID=0

//RFEN=1

//TRCD=2

//TRP=2

0x0410,//SDPER:

SDRAMperiodregister

//7ns*4096

0x07FF,//SDINIT:

SDRAMinitializationregister

//anywritetothisregistertoinittheallCEspaces,

//doitafterhardwareresetorpoweruptheC55xdevice

0x0131//SDC2:

SDRAMcontrolregister2

//SDACC=0;

//TMRD=01;

//TRAS=0101;

//TACTV2ACTV=0001;

};

MCBSP_ConfigMcbsptest;

/*McBSPset,weusemcbsp1tosendandrecievethedatabetweenDSPandAIC23*/

MCBSP_ConfigMcbsp1Config={

MCBSP_SPCR1_RMK（

MCBSP_SPCR1_DLB_OFF,/*DLB=0,禁止自闭环方式*/

MCBSP_SPCR1_RJUST_LZF,/*RJUST=2*/

MCBSP_SPCR1_CLKSTP_DISABLE,/*CLKSTP=0*/

MCBSP_SPCR1_DXENA_ON,/*DXENA=1*/

0,/*ABIS=0*/

MCBSP_SPCR1_RINTM_RRDY,/*RINTM=0*/

0,/*RSYNCER=0*/

MCBSP_SPCR1_RRST_DISABLE/*RRST=0*/

）,

MCBSP_SPCR2_RMK（

MCBSP_SPCR2_FREE_NO,/*FREE=0*/

MCBSP_SPCR2_SOFT_NO,/*SOFT=0*/

MCBSP_SPCR2_FRST_FSG,/*FRST=0*/

MCBSP_SPCR2_GRST_CLKG,/*GRST=0*/

MCBSP_SPCR2_XINTM_XRDY,/*XINTM=0*/

0,/*XSYNCER=N/A*/

MCBSP_SPCR2_XRST_DISABLE/*XRST=0*/

）,

/*单数据相，接受数据长度为16位,每相2个数据*/

MCBSP_RCR1_RMK（

MCBSP_RCR1_RFRLEN1_OF

（1）,/*RFRLEN1=1*/

MCBSP_RCR1_RWDLEN1_16BIT/*RWDLEN1=2*/

）,

MCBSP_RCR2_RMK（

MCBSP_RCR2_RPHASE_SINGLE,/*RPHASE=0*/

MCBSP_RCR2_RFRLEN2_OF（0）,/*RFRLEN2=0*/

MCBSP_RCR2_RWDLEN2_8BIT,/*RWDLEN2=0*/

MCBSP_RCR2_RCOMPAND_MSB,/*RCOMPAND=0*/

MCBSP_RCR2_RFIG_YES,/*RFIG=0*/

MCBSP_RCR2_RDATDLY_1BIT/*RDATDLY=1*/

）,

MCBSP_XCR1_RMK（

MCBSP_XCR1_XFRLEN1_OF

（1）,/*XFRLEN1=1*/

MCBSP_XCR1_XWDLEN1_16BIT/*XWDLEN1=2*/

）,

MCBSP_XCR2_RMK（

MCBSP_XCR2_XPHASE_SINGLE,/*XPHASE=0*/

MCBSP_XCR2_XFRLEN2_OF（0）,/*XFRLEN2=0*/

MCBSP_XCR2_XWDLEN2_8BIT,/*XWDLEN2=0*/

MCBSP_XCR2_XCOMPAND_MSB,/*XCOMPAND=0*/

MCBSP_XCR2_XFIG_YES,/*XFIG=0*/

MCBSP_XCR2_XDATDLY_1BIT/*XDATDLY=1*/

）,

MCBSP_SRGR1_DEFAULT,

MCBSP_SRGR2_DEFAULT,

MCBSP_MCR1_DEFAULT,

MCBSP_MCR2_DEFAULT,

MCBSP_PCR_RMK（

MCBSP_PCR_IDLEEN_RESET,/*IDLEEN=0*/

MCBSP_PCR_XIOEN_SP,/*XIOEN=0*/

MCBSP_PCR_RIOEN_SP,/*RIOEN=0*/

MCBSP_PCR_FSXM_EXTERNAL,/*FSXM=0*/

MCBSP_PCR_FSRM_EXTERNAL,/*FSRM=0*/

0,/*DXSTAT=N/A*/

MCBSP_PCR_CLKXM_INPUT,/*CLKXM=0*/

MCBSP_PCR_CLKRM_INPUT,/*CLKRM=0*/

MCBSP_PCR_SCLKME_NO,/*SCLKME=0*/

MCBSP_PCR_FSXP_ACTIVEHIGH,/*FSXP=0*/

MCBSP_PCR_FSRP_ACTIVEHIGH,/*FSRP=1*/

MCBSP_PCR_CLKXP_FALLING,/*CLKXP=1*/

MCBSP_PCR_CLKRP_RISING/*CLKRP=1*/

）,

MCBSP_RCERA_DEFAULT,

MCBSP_RCERB_DEFAULT,

MCBSP_RCERC_DEFAULT,

MCBSP_RCERD_DEFAULT,

MCBSP_RCERE_DEFAULT,

MCBSP_RCERF_DEFAULT,

MCBSP_RCERG_DEFAULT,

MCBSP_RCERH_DEFAULT,

MCBSP_XCERA_DEFAULT,

MCBSP_XCERB_DEFAULT,

MCBSP_XCERC_DEFAULT,

MCBSP_XCERD_DEFAULT,

MCBSP_XCERE_DEFAULT,

MCBSP_XCERF_DEFAULT,

MCBSP_XCERG_DEFAULT,

MCBSP_XCERH_DEFAULT

};

MCBSP_HandlehMcbsp;

/*ThisnextstructshowshowtousetheI2CAPI*/

/*CreateandinitializeanI2Cinitializationstructure*/

I2C_SetupI2Cinit={

0,/*7bitaddressmode*/

0,/*ownaddress-don'tcareifmaster*/

7,/*clkoutvalue（Mhz）*/

400,/*anumberbetween10and400*/

0,/*numberofbits/bytetobereceivedortransmitted（8）*/

0,/*DLBmodeon*/

1/*FREEmodeofoperationon*/

};

I2C_ConfigtestI2C;//allconfigbitzero,itworks

//I2C:

addr7bit+data9bit

/*数字音频接口格式设置//seetlv320a23bdatasheet

AIC23为主模式，数据为DSP模式，数据长度16位*/

Uint16digital_audio_inteface_format[2]={0x0e,0x53};

/*AIC23的波特率设置，0x23采样率为44.1K,0x0c采样率为8K*/

Uint16sample_rate_control[2]={0x10,0x0c};

/*AIC23寄存器复位*/

Uint16reset[2]={0x1e,0x00};

/*AIC23节电方式设置，所有部分均所与工作状态*/

Uint16power_down_control[2]={0x0c,0x01};

/*AIC23模拟音频的控制

DAC使能，ADC输入选择为MIC*/

Uint16analog_aduio_path_control[2]={0x08,0x14};

/*AIC23数字音频通路的控制*/

Uint16digital_audio_path_control[2]={0x0a,0x05};

/*AIC23数字接口的使能*/

Uint16digital_interface_activation[2]={0x12,0x01};

/*AIC23左通路音频调节*/

//Uint16left_line_input_volume_control[2]={0x00,0x17};

/*AIC23右通路音频调节*/

//Uint16right_line_input_volume_control[2]={0x02,0x17};

/*AIC23耳机左通路音频调节*/

Uint16left_headphone_volume_control[2]={0x05,0x79};

/*AIC23耳机右通路音频调节*/

Uint16right_headphone_volume_control[2]={0x07,0x79};

/*定义McBSP的句柄*/

Uint16i2c_status;

//Uint16temp;

//Uint16nin=0,bcount=0;

//longdec_sour,dec_temp;

voidmain（void）

{

i2c_status=1;//i2cstatus

CSL_init（）;//initcsl

CHIP_RSET（XBSR,0x0a01）;

GPIO_RSET（IODIR,0xFF）;

/*设置系统的运行速度为144MHz*/

PLL_config（&myConfig）;

EMIF_config（&emiffig）;//setsdram

dbptr=（short*）0x021000;//pointtosdram

dbptrhi=（short*）0x022000;

I2C_RSET（I2CMDR,0）;

/*设置预分频寄存器,I2C的modeclockis12MHz*/

delay（100）;

I2C_RSET（I2CSAR,0x001A）;

I2C_RSET（I2CMDR,0x0620）;

I2C_setup（&I2Cinit）;

/*设置Ｉ２Ｃ的Materclock*/

I2C_RSET（I2CCLKL,100）;

I2C_RSET（I2CCLKH,100）;

I2C_getConfig（&testI2C）;

/*初始化McBSP1*/

hMcbsp=MCBSP_open（MCBSP_PORT1,MCBSP_OPEN_RESET）;

/*设置McBSP0*/

MCBSP_config（hMcbsp,&Mcbsp1Config）;

/*启动McBSP0*/

MCBSP_start（hMcbsp,

MCBSP_RCV_START|MC

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