AIC3204 SPI Hardware

DELMAS Yannick

Intellectual 320 points

Other Parts Discussed in Thread: TLV320AIC3204

Hello,

I want to use TLV320AIC3204 for beep generator only for the moment.

I have a hardware question. I use a µC connect only with SPI to the TLV320. I don't use I2S pin.

My output is on LOL pin.

SPI_select pin is High.

LDOin, IOvdd, and LDO_select pin are to 3.3V.

I try several initialisation but nothing works.

I have 1.7V on Avdd and Dvdd pin, but I have 0V on REF pin.

Can you see the problem ?

over 12 years ago

0 J- over 12 years ago

TI__Mastermind 46195 points

Hi Delmas,

0V on REF pin is ok right after power-up before programming the registers of the part. The reference powers up when a block that need it is powered (ADC, DAC, etc).

How about the /RESET pin? It should be set to IOVDD (3.3V) level for normal operation.

I suggest to try to read from the device through SPI to check if the values obtained match the default values shown in the application reference guide of the device.

Let me know if you have any other questions.

Regards,

J-

0 DELMAS Yannick over 12 years ago in reply to J-

Intellectual 320 points

Hello,

The RESET pin is OK (3.3V). I change my interface, and now I'm in I2C.

Now, I have 0.9V on REF pin, and 1.65V on HP and LO output pin.

But, I not able to got Beep with Beep generator.

My problem is perhaps the clock :

My configuration is:

MCLK = 12 MHz (input on AIC3204)

BCLK = 2.82 MHz (input on AIC3204)

WCLK = 44.1 kHz (output of AIC3204).

What is the simplest configuration for clock ?

Regards.

0 Don Dapkus over 12 years ago in reply to DELMAS Yannick

TI__Guru**** 189401 points

Hi, Delmas,

I believe the control s/w for the EVM contains a clock calculator. You can find it here.

-d2

0 DELMAS Yannick over 12 years ago in reply to Don Dapkus

Intellectual 320 points

Hello,

I'm in this configuration :

MCLK = 12 MHz (input on AIC3204)

BCLK = 3 MHz (output of AIC3204)

WCLK = 46 kHz (output of AIC3204).

But the beep don't work. My code is :

    //###############################################
   //# configure AIC3204
   //###############################################
   tlv_write_register(0x00, 0x00);   // Select page 0
   tlv_write_register(0x01, 0x01);   // Reset codec

   delay_ms(10);

   //###############################################
   //# Configure Processing Blocks
   //###############################################
   tlv_write_register(0x00, 0x00);   // Select Page 0
   tlv_write_register(0x3C, 0x19);   // PRB_P25 selected
   tlv_write_register(0x00, 0x2C);   // Select page 44
   tlv_write_register(0x01, 0x04);   // enable adaptive filtering

   delay_ms(10);

   //###############################################
   //# Configure Power Supplies
   //###############################################
   tlv_write_register(0x00, 0x01);   // Point to page 1
   tlv_write_register(0x02, 0x09);   // Power up AVDD LDO
   tlv_write_register(0x01, 0x08);   // Disable crude AVDD generation from DVDD
   tlv_write_register(0x02, 0x01);   // Enable Analog Blocks, use LDO power
   tlv_write_register(0x0A, 0x3B);   //
   tlv_write_register(0x3D, 0x00);   // ADC ????
   tlv_write_register(0x03, 0x00);   // DAC ????
   tlv_write_register(0x47, 0x32);   // Set the input power-up time to 3.1ms (for ADC)
   tlv_write_register(0x7B, 0x01);   // Set the REF charging time to 40ms

   delay_ms(10);

   //###############################################
   //# Configure Clock
   //###############################################
   tlv_write_register(0x00, 0x00);   // Select Page 0
   tlv_write_register(0x04, 0x00);   // codec_clkin = MCLK
   tlv_write_register(0x05, 0x00);   // PLL off

    tlv_write_register(0x1B, 0x0C);   // BCLK output & WCLK output
    tlv_write_register(0x0B, 0x81);   // NDAC = 1, divider powered on
   tlv_write_register(0x0C, 0x82); // MDAC = 2, divider powered on

   tlv_write_register(0x0D, 0x00); // DOSR = 128 (MSB)
   tlv_write_register(0x0E, 0x80);   // DOSR (LSB)
   tlv_write_register(0x12, 0x81); // NADC = 1, divider powered on
   tlv_write_register(0x13, 0x82); // MADC = 2, divider powered on
   tlv_write_register(0x14, 0x80);   // AOSR = 128

   tlv_write_register(0x1D, 0x04);   // BDIV_CLKIN = DAC_CLK
   tlv_write_register(0x1E, 0x84);   // BCLK N = 4, powered*/

   delay_ms(10);

   //###############################################
   //# Configure DAC Channel
   //###############################################
   tlv_write_register(0x00, 0x01);   // Select Page 1
   tlv_write_register(0x03, 0xC0); // class D amplifier
    tlv_write_register(0x0E, 0x08); // Route LDAC/RDAC to LOL/LOR
    tlv_write_register(0x09, 0x3C); // Power up HPL/HPR and LOL/LOR drivers
   tlv_write_register(0x09, 0x3F); // Power up HPL/HPR and LOL/LOR drivers avec mixers
   delay_ms(10);
tlv_write_register(0x12, 0x1D); // Unmute LOL/LOR driver, 29dB Gain
   tlv_write_register(0x13, 0x00);

   tlv_write_register(0x00, 0x00);   // Select Page 0
   tlv_write_register(0x41, 0x00);   // DAC => 0dB
   tlv_write_register(0x42, 0x00);
   tlv_write_register(0x3F, 0xD6); // Power up LDAC/RDAC
   delay_ms(10);
   tlv_write_register(0x40, 0x00);   // Unmute LDAC/RDAC


   //###############################################
   //# BEEP generator
   //###############################################
   tlv_write_register(0x00, 0x00);

   tlv_write_register(0x49, 0x01);
   tlv_write_register(0x4A, 0x77);
   tlv_write_register(0x4B, 0x00);
   tlv_write_register(0x4C, 0x23);
   tlv_write_register(0x4D, 0xFB);
   tlv_write_register(0x4E, 0x7A);
   tlv_write_register(0x4F, 0xD7);

      tlv_write_register(0x47, 0x80);
      tlv_write_register(0x48, 0x04);
}

Can you see where is my problem ?

Regards.

0 J- over 12 years ago in reply to DELMAS Yannick

TI__Mastermind 46195 points

Delmas,

See section 3.4 of http://www.ti.com/lit/pdf/slaa446.

Regards,

J-

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AIC3204 SPI Hardware