AIC3254 启动问题与延时调节功能实现过程

你好：

             AIC3254的启动过程可参考附件的第87页和txt文档。

             你说的这种情况很奇怪，但是通常是由于配置AIC3254不正确所导致。请问你是如何配置AIC3254的？

              此外你说的需要功能调节延时是需要用在哪里？您说在固件中的延迟已经实现是说Pure Path Studio中实现么？

HI Derek

如何配置AIC3254,是由Pure Path Studio 产生main_Rate8.cfg ，按main_Rate8.cfg里面的顺序写命令的。

另外MSP430写程序，这p1.1接AIC3254 的RESET引脚，P1.4产生一个8M的时钟给AIC3254给 MCLK 引脚。请问这两个引脚操作有什么注意的、？

此外你说的需要功能调节延时是需要用在哪里？您说在固件中的延迟已经实现是说Pure Path Studio中实现么？

补充：调节延时功能是MIC 的声音到耳机输出的延时，这样效果可助听器类似，外接一个按键做调节。 固定的延迟在Pure Path Studio中实现了，但是将更改为MCU+AIC3254自己做的PCB小板上出现用手接触一下才能有声音输出。暂时没有找到原因在哪，急急急！

你好：

         由于Purepath下载后，会把Codec配置成默认的格式。他对PLL的配置的分频系数是按照MCLKC为4.096M的配置。并且会配置Codec为从模式。请问你的系统中，I2S时钟是外部提供的，还是Codec自己产生的。如果是外部提供仅需要修改AIC3254的分频器和PLL的配置。如果是自己产生，还需要将Codec配置从主模式，Power on BCLK。

你好：

         如果是MIC进，Headphone出，那么Codec是主。

如图，codec 时钟是 MCU产生8M 给MCLK

配置如下：

#   --------------------------------------------------------------- page 0 is selected
w 30 00 00
#   # reg[  0][  1] = 0x01 ; Initialize the device through software reset
> 01
#   --------------------------------------------------------------- page 1 is selected
w 30 00 01
#   # reg[  1][  1] = 0x08 ; Disable weak AVDD to DVDD connection
> 08
#   # reg[  1][  2] = 0x00 ; Enable Master Analog Power Control
> 00
#   # reg[  1][ 71] = 0x32 ; Set the input power-up time to 3.1ms
w 30 47 32
#   # reg[  1][123] = 0x05 ; Force REF charging time to 40ms
w 30 7b 05
#   --------------------------------------------------------------- page 8 is selected

省略中间 一起写完

#   --------------------------------------------------------------- page 166is selected

后面再写配置

#   --------------------------------------------------------------- page 0 is selected
w 30 00 00
#   # reg[  0][ 60] = 0x00 ; Use miniDSP_D for signal processing
w 30 3c 00
#   # reg[  0][ 61] = 0x00 ; Use miniDSP_A for signal processing
> 00
#   # reg[  0][ 17] = 0x08 ; 8x Interpolation
w 30 11 08
#   # reg[  0][ 23] = 0x04 ; 4x Decimation
w 30 17 04
#   
w 30 0f 03
#   
> 88
#   
w 30 15 03
#   
> 88
#   --------------------------------------------------------------- page 8 is selected
w 30 00 08
#   # reg[  8][  1] = 0x04 ; adaptive mode for ADC
> 04
#   --------------------------------------------------------------- page 44 is selected
w 30 00 2c
#   # reg[ 44][  1] = 0x04 ; adaptive mode for DAC
> 04
#   --------------------------------------------------------------- page 0 is selected
w 30 00 00
#   # reg[  0][  5] = 0x91 ; P=1, R=1, J=24
w 30 05 91
#   # reg[  0][  6] = 0x18 ; P=1, R=1, J=24
> 18
#   # reg[  0][  7] = 0x00 ; D=0000 (MSB)
> 00
#   # reg[  0][  8] = 0x00 ; D=0000 (LSB)
> 00
#   # reg[  0][  4] = 0x03 ; PLL_clkin = MCLK, codec_clkin = PLL_CLK, PLL on
w 30 04 03
#   # reg[  0][254] = 0x0a ; Delay 10ms for PLL to lock
w 30 fe 0a
#   # reg[  0][ 12] = 0x88 ; MDAC = 8, divider powered on
w 30 0c 88
#   # reg[  0][ 13] = 0x03 ; DOSR = 768 (MSB)
> 03
#   # reg[  0][ 14] = 0x00 ; DOSR = 768 (LSB)
> 00
#   # reg[  0][ 18] = 0x02 ; NADC = 2, divider powered off
w 30 12 02
#   # reg[  0][ 19] = 0xb0 ; MADC = 48, divider powered on
> b0
#   # reg[  0][ 20] = 0x80 ; AOSR = 128
> 80
#   # reg[  0][ 11] = 0x82 ; NDAC = 2, divider powered on
w 30 0b 82
#   --------------------------------------------------------------- page 1 is selected
w 30 00 01
#   # reg[  1][ 51] = 0x40 ; Mic Bias enabled, Source = Avdd, 1.25V
w 30 33 40
#   # reg[  1][ 52] = 0x40 ; Route IN1L to LEFT_P with 10K input impedance
> 40
#   # reg[  1][ 54] = 0x40 ; Route CM1L to LEFT_M with 10K input impedance
w 30 36 40
#   # reg[  1][ 55] = 0x40 ; Route IN1R to RIGHT_P with 10K input impedance
> 40
#   # reg[  1][ 57] = 0x40 ; Route CM1R to RIGHT_M with 10K input impedance
w 30 39 40
#   # reg[  1][ 59] = 0x00 ; Enable MicPGA_L Gain Control, 0dB
w 30 3b 00
#   # reg[  1][ 60] = 0x00 ; Enable MicPGA_R Gain Control, 0dB
> 00
#   --------------------------------------------------------------- page 0 is selected
w 30 00 00
#   # reg[  0][ 81] = 0xc0 ; Power up LADC/RADC
w 30 51 c0
#   # reg[  0][ 82] = 0x00 ; Unmute LADC/RADC
> 00
#   --------------------------------------------------------------- page 1 is selected
w 30 00 01
#   # reg[  1][ 20] = 0x25 ; De-pop: 5 time constants, 6k resistance
w 30 14 25
#   # reg[  1][ 12] = 0x08 ; Route LDAC to HPL
w 30 0c 08
#   # reg[  1][ 13] = 0x08 ; Route RDAC to HPR
> 08
#   # reg[  1][ 14] = 0x08 ; Route LDAC to LOL
> 08
#   # reg[  1][ 15] = 0x08 ; Route LDAC to LOR
> 08
#   --------------------------------------------------------------- page 0 is selected
w 30 00 00
#   # reg[  0][ 63] = 0xd4 ; Power up LDAC/RDAC w/ soft stepping
w 30 3f d4
#   --------------------------------------------------------------- page 1 is selected
w 30 00 01
#   # reg[  1][ 16] = 0x00 ; Unmute HPL driver, 0dB Gain
w 30 10 00
#   # reg[  1][ 17] = 0x00 ; Unmute HPR driver, 0dB Gain
> 00
#   # reg[  1][ 18] = 0x00 ; Unmute LOL driver, 0dB Gain
> 00
#   # reg[  1][ 19] = 0x00 ; Unmute LOR driver, 0dB Gain
> 00
#   # reg[  1][  9] = 0x3c ; Power up HPL/HPR and LOL/LOR drivers
w 30 09 3c
#   --------------------------------------------------------------- page 0 is selected
w 30 00 00
#   # reg[  0][ 64] = 0x00 ; Unmute LDAC/RDAC
w 30 40 00
#   # reg[0][82] = 0
w 30 52 00
#   # reg[0][83] = 0
> 00
#   # reg[0][86] = 32
w 30 56 20
#   # reg[0][87] = 223
> df
#   # reg[0][88] = 0
> 00
#   # reg[0][89] = 104
> 68
#   # reg[0][90] = 168
> a8
#   # reg[0][91] = 6
> 06
#   # reg[0][92] = 0
> 00
#   # reg[0][84] = 0
w 30 54 00
#   # reg[0][94] = 32
w 30 5e 20
#   # reg[0][95] = 223
> df
#   # reg[0][96] = 0
> 00
#   # reg[0][97] = 104
> 68
#   # reg[0][98] = 168
> a8
#   # reg[0][99] = 6
> 06
#   # reg[0][100] = 0
> 00

能否详细说明一下，如上怎样改正？

谢谢Derek 问题已经解决！

DEREK 您好！

打扰您！我在使用AIC3204时遇到很奇怪的问题。我希望配置3204为主模式，输出BCLK和WCLK, 使用了别的MCU, 控制程序用了usbstk5505的例程中的aic3204_loop_linein（）和aic3204_tone_headphone( )，反复检查硬件，与usbstk5505完全一致。MCU操作I2C写3204成功，可看到正确应答信号。（如将地址改为别的，就没有应答，MCU与3204应通信正常），MCLK用有源晶振10M, 但是我怎么也无法在BCLK和WCLK看到输出,已经调试1周无法解决，万望不吝赐教！程序如下：

Int16 aic3204_tone_headphone( )
{

    Int16 j, i = 0;
    Int16 sample;
    //if(!I2C_Init(AIC3204_IDENT_W)) //Write CMD addr=0x34,aic23 addrs
 //{return false;}
 //IdentAddr =0x30;
 I2C_Init(AIC3204_IDENT_W);
    
    /* Configure Serial Bus */
    //SYS_EXBUSSEL |= 0x0100;  // Configure Serial bus 0 for I2S0

    /* Configure AIC3204 */
    if(!AIC3204_rset( 0, 0 ))return false;      // Select page 0
    AIC3204_rset( 1, 1 );      // Reset codec
    AIC3204_rset( 0, 1 );      // Select page 1
    AIC3204_rset( 1, 8 );      // Disable crude AVDD generation from DVDD
    AIC3204_rset( 2, 1 );      // Enable Analog Blocks, use LDO power
    AIC3204_rset( 0, 0 );
    /* PLL and Clocks config and Power Up  */
    AIC3204_rset( 27, 0x0c );  // ori=d BCLK and WCLK are set as o/p; AIC3204(Master)
    AIC3204_rset( 28, 0x00 );  // Data ofset = 0
    AIC3204_rset( 4, 3 );      // PLL setting: PLLCLK <- MCLK, CODEC_CLKIN <-PLL CLK
    AIC3204_rset( 6, 5 );      // PLL setting: J=5;ORI=J=7
    //AIC3204_rset( 7, 0x0 );   // PLL setting: HI_BYTE(D=0)
    //AIC3204_rset( 8, 0x0 );   // PLL setting: LO_BYTE(D=0),
    //AIC3204_rset( 7, 0x06 );   // PLL setting: HI_BYTE(D=1680)
    //AIC3204_rset( 8, 0x90 );   // PLL setting: LO_BYTE(D=1680),
                               //NOW J.D=5.0, PLL=36.864M/2*5=92.16M,ADC_MOD_CLK=92.16M/15=6.144M, /128=48KHZ
                               //ORI= J.D=7.168, PLL=12M*7.168=86.016M,ADC_MOD_CLK=86.016M/14=6.144M, /128=48KHZ
    AIC3204_rset( 29, 0x80 );                          
    AIC3204_rset( 30, 0x84 );  // For 32 bit clocks per frame in Master mode ONLY
                               // BCLK=DAC_CLK/N =(12288000/8) = 1.536MHz = 32*fs
    AIC3204_rset( 5, 0xA1 );   // PLL setting:0XA1=P=2 and R=1; ORI=0X91=Power up PLL, P=1 and R=1
    AIC3204_rset( 13, 0 );     // Hi_Byte(DOSR) for DOSR = 128 decimal or 0x0080 DAC oversamppling
    AIC3204_rset( 14, 0x80 );  // Lo_Byte(DOSR) for DOSR = 128 decimal or 0x0080
    AIC3204_rset( 20, 0x80 );  // AOSR for AOSR = 128 decimal or 0x0080 for decimation filters 1 to 6
    AIC3204_rset( 11, 0x83 );  // Power up NDAC and set NDAC value to 3,ORI=2
    AIC3204_rset( 12, 0x85 );  // Power up MDAC and set MDAC value to 5,ORI=7
    AIC3204_rset( 18, 0x85 );  // Power up NADC and set NADC value to 5,ORI=7
    AIC3204_rset( 19, 0x83 );  // Power up MADC and set MADC value to 3,ORI=2
    /* DAC ROUTING and Power Up */
    AIC3204_rset( 0, 1 );      // Select page 1
    AIC3204_rset( 0x0c, 8 );   // LDAC AFIR routed to HPL
    AIC3204_rset( 0x0d, 8 );   // RDAC AFIR routed to HPR
    AIC3204_rset( 0, 0 );      // Select page 0
    AIC3204_rset( 64, 2 );     // Left vol=right vol
    AIC3204_rset( 65, 0);      // Left DAC gain to 0dB VOL; Right tracks Left
    AIC3204_rset( 63, 0xd4 );  // Power up left,right data paths and set channel
    AIC3204_rset( 0, 1 );      // Select page 1
    AIC3204_rset( 0x10, 0x00 );// Unmute HPL , 0dB gain
    AIC3204_rset( 0x11, 0x00 );// Unmute HPR , 0dB gain
    AIC3204_rset( 9, 0x30 );   // Power up HPL,HPR
    AIC3204_rset( 0, 0 );      // Select page 0
    //USBSTK5505_wait( 100 );    // wait
    Delayms(100);
    /* ADC ROUTING and Power Up */
    AIC3204_rset( 0, 1 );      // Select page 1
    AIC3204_rset( 0x34, 0x30 );// STEREO 1 Jack
                         // IN2_L to LADC_P through 40 kohm
    AIC3204_rset( 0x37, 0x30 );// IN2_R to RADC_P through 40 kohmm
    AIC3204_rset( 0x36, 3 );   // CM_1 (common mode) to LADC_M through 40 kohm
    AIC3204_rset( 0x39, 0xc0 );// CM_1 (common mode) to RADC_M through 40 kohm
    AIC3204_rset( 0x3b, 0 );   // MIC_PGA_L unmute
    AIC3204_rset( 0x3c, 0 );   // MIC_PGA_R unmute
    AIC3204_rset( 0, 0 );      // Select page 0
    AIC3204_rset( 0x51, 0xc0 );// Powerup Left and Right ADC
    AIC3204_rset( 0x52, 0 );   // Unmute Left and Right ADC
   
    AIC3204_rset( 0, 0 );   
    //USBSTK5505_wait( 200 );  // Wait
    Delayms(100);

}