About AP1_OUT of ADV7625

Hi,

  'AP1_OUT4' should output I2S data , Please make sure whether you are in I2S mode.

Also make sure this corresponding bit - TRISTATE_AP1_OUT_X[4] = Tristate AP1_OUT[4] pin should be '0' in register TRISTATE_AP1_OUT_X[7:0] (0x9D).

Thanks,

Poornima

Dear Poornima

Hi.

Thank you for your answer.

I checked out I2S mode for AP1_OUT4 port but I didn't confirm the waveform as I2s data.

I understand that Tristate AP1_OUT[4] pin should be '0' in register.

Which device address is 00 or EC?

I executed in the following steps.

①used script file (ADV7625-26-27_Ver1.0)

②selected HDMI Splitter Mode 

③set Tristate AP1_OUT_X

④set I2S out mode

Best Regards

Morry

Hi,

   Are you asking about IO map address right? If so, It is 0xB0..

   Please note When the ALSB pin is held low, the I2C address of the IO Map is '0xB0'. When the ALSB pin is held high, the I2C address of the IO Map is '0xB2'.

Thanks,

Poornima

Dear Poornima

Hi.

No, I'm asking about HDMI RX1 Main Map address.

I think that I2S out mode is in HDMI RX Main Map.

I understand the ALSB pin is held low or high.

I tried to set I2S out mode and Tristate AP1_OUT_X several times

but only AP1_OUT_[0] and [1] were working as I2S data.

I think the mode and  AP1_OUT port setting is valid but I can't confirm the waveform

that AP1_OUT_[2]～[4] as I2S data.

Thanks. 

Best Regards

Morry

Hi,

 HDMI RX1 Main map address is '0x68', So you can configure like "68 03 Register value[6:5]".

Please refer below I2C map address for HDMI_Rx1/Rx2.

 B0 EC 68 ; default=0x00, Set HDMI_Rx1_Map address
 B0 F0  58 ; default=0x00, Set HDMI_Rx2_Map address

Please provide your register configuration, Will check and let you know.

Thanks,

Poornima

Dear Poornima

Hi.

This is my register configuration.

①select HDMI Splitter Mode (script file)

②set Tristate AP1_OUT_X (B0  9D  0D)

③set register map (B0  EC  68)

④set I2S out mode (EC  03  18)

Thanks,

Best Regards

Morry

Hi,

1) B0  9D  0D - Here you are tristating the pins "AP1_OUT[0], AP1_OUT[2], AP1_OUT[3]"

                       If so, How you are getting the I2S data in the pin "AP1_OUT port 0" ?

4) You have configured the HDMI Rx1 map address in wrong way. Please configure as like below and let us know the result.

        -  B0 EC 68

        -  68 03 18

Thanks,

Poornima

Dear Poornima

Hi.

1) I use ADV7625 Evaluation Board now.

First I set the script file and selected HDMI Splitter Mode.

Then I could confirm the waveform for AP1_OUT_port [0] on RA20 resistor in ADV7625

Evaluation Board.

But AP1_OUT_[0] is SPDIF0 on a datasheet.

I could confirm the waveform for AP1_OUT_[1] on J10 connector in ADV7625 Evaluation

Board using HDMI Splitter Mode.

Thanks,

Best Regards

Morry

Hi,

  Yes,As per Table18  we can configure the 'AP1_OUT_[0]' as SPDIF0 and I2S for remaining pins(AP1_OUT_[1]/AP1_OUT_[2]/AP1_OUT_[3]/AP1_OUT_[4]).

  Please note 'ADV7625' has 2 independent(AP0/AP1) 8-channel audio extraction ports So in each I2S pin we can carry 2 channel.

  Kindly let us know, In our evaluation board whether you can get the I2S data from AP1 Out[1-4] ?

Thanks,

Poornima

Hi,

  Yes,As per Table18  we can configure the 'AP1_OUT_[0]' as SPDIF0 and I2S for remaining pins(AP1_OUT_[1]/AP1_OUT_[2]/AP1_OUT_[3]/AP1_OUT_[4]).

  Please note 'ADV7625' has 2 independent(AP0/AP1) 8-channel audio extraction ports So in each I2S pin we can carry 2 channel.

  Kindly let us know, In our evaluation board whether you can get the I2S data from AP1 Out[1-4] ?

Thanks,

Poornima

Dear Poornima

Hi.

I could confirm I2S data for AP1_OUT_[1].

But I couldn't confirm I2S data for AP1_OUT_[2]～[4].

Thanks,

Best Regards

Morry

Hi,

   Here we have validated the 8 channel output from ADV7625 part, So the I2S data will be available in AP1_OUT_[1] ~ AP1_OUT_[4].

Thanks,

Poornima

Dear Poornima

Hi.

Could you tell me the register that you use?

I'd like to confirm that.

Thanks, 

Best Regards

Morry

Hi,

  By default we configured our ADV7625 part in I2S Audio extraction mode and this configuration is enough for audio port extraction.

  Please crosscheck your schematic with our reference one to check whether the AP pins are connected properly.

Thanks,

Poornima

Dear Poornima

Hi.

I use ADV7625 Eva Board, so I think no problem about the schematic.

I confirm the I2S data on J10 connector now.

Thanks

Best Regards

Morry

Hi,

  We have been using ADV7625 part in Melody boards and in that board we could acheive the 8 channel output by using ADV7625 part.

   For your reference will prob in our Eval ADV7625 board and share you the pin details.

  J10 connector pinout is something like DSP(SHARC) processor connection.

Thanks,

Poornima

Dear Poornima

Hi.

Could you  confirm the I2S data of AP1_OUT port [1]～[4] using Eval ADV7625.

If it is possible, please use a script file [ADV7625-26-27_ver1.0.txt].

Thanks, 

Best Regards

Morry

Dear Poornima

Hi.

How is the progress about ADV7625 Eva after that?

Do you have an answer about I2S data on AP1_OUT_[4]?

Please tell me if you have an answer.

Thanks,

Best Regards

Morry

Hi,

  In Eval board i have not get any chance to verify but in Melody boards we are using ADV7625 part .

  In Melody boards, We have verified 'MCPCM to Compressed streams' using ADV7625 chip. So I am sure our ADV7625 part can support 4xI2S.

  Please make sure, Whether you are pumping multichannel stream ?

  Also make sure whether you have the enabled the register as "Audio from HDMI Rx1" (i.e if  source is connected to RX1)

Thanks,

Poornima

Dear Poornima.

Hi.

It's no problem about the register as "Audio from HDMI Rx1".

How do you think about signal mapping of the AP1_OUT output port?

Do you think it's related?

Thanks, 

Best Regards

Morry