5509line out输出

现在用5509开发板做声音回放试验,用line in输入,是可以听见声音的,但是声音很小,几乎听不见,换了mic输入就一点听不见了,这会不会是应为声音太小导致phone口输出声音听不见?我现在想在phone口加一个功放,不知道可行不?请各位指点一下

/******************************************************************************/
/*  Copyright 2004 by SEED Electronic Technology LTD.                         */
/*  All rights reserved. SEED Electronic Technology LTD.                      */
/*  Restricted rights to use, duplicate or disclose this code are             */
/*  granted through contract.                                                 */
/*                 东南大学                                                           */
/*                                                                            */
/******************************************************************************/
/*----------------------------------------------------------------------------*/
/* MODULE NAME... I2C and Mcbsp                                                  */
/* FILENAME...... codec.c                                                     */
/* DATE CREATED.. Mon 30/5/2018                                                  */
/* COMPONENT.....                                                               */
/* PREREQUISITS..                                                               */

#include <csl.h>
#include <csl_i2c.h>
#include <stdio.h>
#include <csl_pll.h>
#include <csl_mcbsp.h>

#define CODEC_ADDR 0x1A


/*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 and restarts the PLL phase-locking
                //sequence
  12,    //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)
};


MCBSP_Config Mcbsptest;

/*McBSP set,we use mcbsp1 to send and recieve the data between DSP and AIC23*/
MCBSP_Config Mcbsp1Config = {
  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
};
/* This next struct shows how to use the I2C API */
/* Create and initialize an I2C initialization structure */
I2C_Setup I2Cinit = {
        0,              /* 7 bit address mode */
        0,         /* own address - don't care if master */
        84,            /* clkout value (Mhz)  */
        50,            /* 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 testI2C;


/*数字音频接口格式设置
AIC23为主模式,数据为DSP模式,数据长度16位*/
Uint16 digital_audio_inteface_format[2]={0x0e,0x53};
/*AIC23的波特率设置,采样率为44.1K*/
Uint16 sample_rate_control[2] = {0x10,0x20};
/*AIC23寄存器复位*/
Uint16 reset[2] ={0x1e,0x00};
/*AIC23节电方式设置,所有部分均所与工作状态*/
Uint16 power_down_control[2] ={0x0c,0x01};
/*AIC23模拟音频的控制
DAC使能,ADC输入选择为MIC*/
Uint16 analog_aduio_path_control[2] ={0x08,0x15};
/*AIC23数字音频通路的控制*/
Uint16 digital_audio_path_control[2] ={0x0a,0x05};
/*AIC23数字接口的激活*/
Uint16 digital_interface_activation[2] ={0x12,0x01};
/*AIC23左通路音频调节*/
Uint16 left_line_input_volume_control[2] ={0x00,0x00};
/*AIC23右通路音频调节*/
Uint16 right_line_input_volume_control[2] ={0x02,0x00};
/*AIC23耳机左通路音频调节*/
Uint16 left_headphone_volume_control[2] ={0x05,0x79};
/*AIC23耳机右通路音频调节*/
Uint16 right_headphone_volume_control[2] = {0x07,0x79};
/*定义McBSP的句柄*/
MCBSP_Handle hMcbsp;

Uint16 i2c_status;
Uint16 i,temp;

void delay(Uint32 k)
{
   while(k--);
}


void main(void)
{

    Uint16 aic23data = 0;
    i2c_status = 1;
    /* Initialize CSL library - This is REQUIRED !!! */
    /*初始化CSL库*/
    CSL_init();

    /*设置系统的运行速度为140MHz*/
    PLL_config(&myConfig);

    /* Initialize I2C, using parameters in init structure */
    /*初始化I2C的格式*/

//    I2C_config(&Config);
//    I2C_start();

//    I2C_getConfig(&Config1);
    /*I2C is undet reset*/
    I2C_RSET(I2CMDR,0);
    /*设置预分频寄存器,I2C的mode clock is 10MHz*/
    delay(100);
    I2C_RSET(I2CSAR,0x001A);

    I2C_RSET(I2CMDR,0x0620);

    I2C_setup(&I2Cinit);
      /*设置I2C的Mater clock*/
    I2C_RSET(I2CCLKL,100);

    I2C_RSET(I2CCLKH,100);

    I2C_getConfig(&testI2C);

    /*初始化McBSP0*/
    hMcbsp = MCBSP_open(MCBSP_PORT0,MCBSP_OPEN_RESET);
    //hMcbsp = MCBSP_open(MCBSP_PORT1, MCBSP_OPEN_RESET);
    /*设置McBSP0*/
    MCBSP_config(hMcbsp,&Mcbsp1Config);
    /*启动McBSP0*/
    MCBSP_start(hMcbsp,
                MCBSP_RCV_START | MCBSP_XMIT_START,
                0);

    MCBSP_getConfig(hMcbsp,&Mcbsptest);

    /*reset AIC23*/
    i2c_status = I2C_write( reset,          //pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver--master
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    delay(1000);
    /*设置AIC23各部分均工作*/
    i2c_status = I2C_write( power_down_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    /*设置AIC23的数字接口*/
    i2c_status = I2C_write( digital_audio_inteface_format,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                               );
     /*设置AIC23模拟通路*/
    i2c_status = I2C_write( analog_aduio_path_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    /*设置数字通路*/
    i2c_status = I2C_write( digital_audio_path_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                              );
    /*设置AIC23的采样率*/
    i2c_status = I2C_write( sample_rate_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    /*设置耳机音量*/
    i2c_status = I2C_write( left_headphone_volume_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    i2c_status = I2C_write( right_headphone_volume_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    /*设置Line输入的音量*/
    i2c_status = I2C_write( left_line_input_volume_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    i2c_status = I2C_write( right_line_input_volume_control,//pointer to data array
                            2,                //length of data to be transmitted
                            1,                //master or slaver
                            CODEC_ADDR,        //slave address to transmit to
                            1,                //transfer mode of operation
                            30000            //time out for bus busy
                            );
    /*启动AIC23*/
    i2c_status = I2C_write( digital_interface_activation,//pointer to data array
               2,                //length of data to be transmitted
               1,                //master or slaver
               CODEC_ADDR,        //slave address to transmit to
               1,                //transfer mode of operation
               30000            //time out for bus busy
               );

    /*回放音频*/
    while(TRUE)
    {
        while(!MCBSP_rrdy(hMcbsp)){};
        aic23data = MCBSP_read16(hMcbsp);
           MCBSP_write16(hMcbsp,aic23data);
    }
}


/******************************************************************************\
* End of i2c2.c
\******************************************************************************/

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