DSP 5509音频信号低通滤波.docx

1、DSP 5509音频信号低通滤波#include #include #include #include #include #include #include #include #include #include #include /#include hamming30fdacoefs.h#include hamming30hipsfdacoefs.h /30 points hamming window high pass FIR#include bandpass101fdacoefs.h /101 points bandpass FIR, 300Hz-1.5kHz / #include eq1

2、10fdacoefs.h/ #include eq110hifdacoefs.h/ #define PI 3.14159265358979323846 / PI value/ #define CONV 32767.999999 / Q15- float conversion value = 215- 21-15 #define CODEC_ADDR 0x1A / AIC23 I2C address#define ST1_55 *(int *)0x03#define ST3_55 *(int *)0x04#define LBDS1 (*(unsigned int *)0x600400)#defi

3、ne keyboard (*(unsigned int *)0x600C00)#define GPIO_SEL (*(unsigned int *)0x400000)#define hNX 1 / Fir input data length/ #define NH 31unsigned int uLED10=0x0db,0x50,0x6b,0x73,0xf0,0x0b3,0x0bb,0x51,0x0fb,0x0f3;DATA *aic23data,*voicedata; / voice input & output data pointerDATA *dbptr /* = &db0 */; /

4、 lopass fliter bufferDATA *dbptrhi; / hipass fliter buffer/ void Delay(unsigned int nDelay); / 延时子程序void aic_init(); / init aic23unsigned int time=0;unsigned int temp_key,temp_key1,firflag; / key buffer & fliter select flag/*/void delay(Uint32 k) / true delay func while(k-);/*/void dealkey() / key f

5、unc temp_key=keyboard; / read key data 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+; /keycodetime=temp_key; switch(temp_key) case 0x0fb: LBDS1=0x75; / L / recordflag=1; firflag

6、= 0; /0: low pass break; case 0x0f7: LBDS1=0x56; / replayflag=1; break; case 0x0ef: LBDS1=0x07; / H / stopflag=1; firflag = 1; /1: high pass break; case 0x0df: LBDS1=0; / overflag=1; break; case 0x0bf: LBDS1=0x0ff-uLED5; /LED just for fun break; case 0x07f: LBDS1=0x0ff-uLED6; break; case 0x0fd: LBDS

7、1=0x0ff-uLED7; break; case 0x0fe: LBDS1=0x0ff-uLED8; break; default:break; /*/*/*/*锁相环的设置*/PLL_Config myConfig = 0, /IAI: the PLL locks using the same process that was underway /before the idle mode was entered 1, /IOB: If the PLL indicates a break in the phase lock, /it switches to its bypass mode

8、and restarts the PLL phase-locking /sequence 24, /PLL multiply value; multiply 24 times 1 /Divide by 2 PLL divide value; it can be either PLL divide value /(when PLL is enabled), or Bypass-mode divide value /(PLL in bypass mode, if PLL multiply value is set to 1);EMIF_Config emiffig = 0x221, /EGCR :

9、 the MEMFREQ = 00,the clock for the memory is equal to cpu frequence / the WPE = 0 ,forbiden the writing posting when we debug the EMIF / the MEMCEN = 1,the memory clock is reflected on the CLKMEM pin / the NOHOLD = 1,HOLD requests are not recognized by the EMIF 0xFFFF, /EMI_RST: any write to this r

10、egister resets the EMIF state machine 0x3FFF, /CE0_1: CE0 space control register 1 / MTYPE = 011,Synchronous DRAM(SDRAM),16-bit data bus width 0xFFFF, /CE0_2: CE0 space control register 2 0x00FF, /CE0_3: CE0 space control register 3 / TIMEOUT = 0xFF; 0x3FFF, /CE1_1: CE0 space control register 1 0xFF

11、FF, /CE1_2: CE0 space control register 2 0x00FF, /CE1_3: CE0 space control register 3 0x1FFF, /CE2_1: CE0 space control register 1 0xFFFF, /CE2_2: CE0 space control register 2 0x00FF, /CE2_3: CE0 space control register 3 0x1FFF, /CE3_1: CE0 space control register 1 0xFFFF, /CE3_2: CE0 space control

12、register 2 0x00FF, /CE3_3: CE0 space control register 3 0x2911, /SDC1: SDRAM control register 1 / TRC = 8 / SDSIZE = 0;SDWID = 0 / RFEN = 1 / TRCD = 2 / TRP = 2 0x0410, /SDPER : SDRAM period register / 7ns *4096 0x07FF, /SDINIT: SDRAM initialization register / any write to this register to init the

13、all CE spaces, / do it after hardware reset or power up the C55x device 0x0131 /SDC2: SDRAM control register 2 / SDACC = 0; / TMRD = 01; / TRAS = 0101; / TACTV2ACTV = 0001; ;MCBSP_Config Mcbsptest;/*McBSP set,we use mcbsp1 to send and recieve the data between DSP and AIC23*/MCBSP_Config Mcbsp1Config

14、 = 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

15、 */ ), 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

16、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 */

17、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

18、_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 */ MCBS

19、P_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

20、_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,

21、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_Handle hMcbsp;/* This next struct shows how to use the I2C API */* Create and initialize an I2C initializ

22、ation structure */I2C_Setup I2Cinit = 0, /* 7 bit address mode */ 0, /* own address - dont care if master */ 7, /* clkout value (Mhz) */ 400, /* a number between 10 and 400*/ 0, /* number of bits/byte to be received or transmitted (8)*/ 0, /* DLB mode on*/ 1 /* FREE mode of operation on*/;I2C_Config

23、 testI2C; /all config bit zero, it works / I2C: addr 7bit + data 9bit/*数字音频接口格式设置 / see tlv320a23b datasheetAIC23为主模式，数据为DSP模式，数据长度16位*/ Uint16 digital_audio_inteface_format2=0x0e,0x53;/*AIC23的波特率设置，0x23采样率为44.1K,0x0c采样率为8K*/Uint16 sample_rate_control2 = 0x10,0x0c;/*AIC23寄存器复位*/Uint16 reset2 =0x1e,0

24、x00;/*AIC23节电方式设置，所有部分均所与工作状态*/Uint16 power_down_control2 =0x0c,0x01;/*AIC23模拟音频的控制DAC使能，ADC输入选择为MIC*/Uint16 analog_aduio_path_control2 =0x08,0x14;/*AIC23数字音频通路的控制*/Uint16 digital_audio_path_control2 =0x0a,0x05;/*AIC23数字接口的使能*/Uint16 digital_interface_activation2 =0x12,0x01;/*AIC23左通路音频调节*/ Uint16 l

25、eft_line_input_volume_control2 =0x00,0x17;/*AIC23右通路音频调节*/ Uint16 right_line_input_volume_control2 =0x02,0x17;/*AIC23耳机左通路音频调节*/Uint16 left_headphone_volume_control2 =0x05,0x79;/*AIC23耳机右通路音频调节*/Uint16 right_headphone_volume_control2 = 0x07,0x79;/*定义McBSP的句柄*/Uint16 i2c_status;/Uint16 temp;/Uint16 n

26、in=0,bcount=0;/long dec_sour,dec_temp;void main(void) i2c_status = 1; / i2c status CSL_init(); / init csl 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); /set sdram dbptr = (short *)0x021000; /point to sdram dbptrhi = (short *)0x02200

27、0; I2C_RSET(I2CMDR,0); /*设置预分频寄存器,I2C的mode clock is 12MHz*/ delay(100); I2C_RSET(I2CSAR,0x001A); I2C_RSET(I2CMDR,0x0620); I2C_setup(&I2Cinit); /*设置的Mater clock*/ 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