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PCM5102EVM-U: Audio forum

Part Number: PCM5102EVM-U
Other Parts Discussed in Thread: PCM5142, PUREPATHCONSOLE, PCM1862EVM, PCM5102A, PCM5102, PCM1862

The Software I downloaded from the web (slac493a) is not for PCM5102EVM-U , but for: PCM5101EVM-S (see attached image) . 

This version of CodeControl doesn't have an option for I2C Audio Source , NOT the SPDIF ,  that we're planning to use via the

USB controller of the PCM5102EVM-U  .

  • Hi Isaac,

    I recommend that you use PurePath Console 1.  You can request access to it at this link:http://www.ti.com/tool/AICPUREPATH_STUDIO?OrderOnline=More+Info

    You should just use the PCM5142 software page in PPC1.

    Please let me know if you are requesting access with the same email you used when you created you E2E account and I can grant access.

    Thanks,

    Paul

  • I did install the PurePathConsole1 from:   setup_PurePathConsole_Main_v1.16_rev35470.exe 

    But does this program belong to PCM5102EVM-U DAC board rather than the PCM1862EVM ADC board ,

    where I downloaded it from the pdf of :  PCM186xEVM  slau615.pdf  !

    In any case , there is no activity shown on the PC console after installing the PurePathConsole1 for that PCM5102EVM-U DAC board !

  • Try the following steps:

    1. Connect EVM

    2. Launch PPC1.16

    3. Under target selection, select PCM5142

    4. You can now select your input path.

    Did that work?

  • After installing PurePathCosole1.6 for the PCM5102EVM and PurePathConsole2.1 for the PCM1862EVM ,

    and connecting both via their USB to the Win7 host computer , while inputting to VIN2 of PCM1862EVM (ADC)

    audio data from an online sound generator  (  https://www.szynalski.com/tone-generator/  ) - I could not see data

    flowing through both EVMs (see attached Sound window , where icon "HeadPhone" shows data from the sound

    generator , icon "RCA Connectors" is related to the  PCM1862EVM (ADC) and icon "Speaker" at the bottom is

    related to PCM5102EVM (DAC) . See also attached consoles from PurePathCosole1.6 and PurePathConsole2.1  .

    Thanks ,

    Isaac Achler

  • Hi Isaac,

    I am not sure which of the devices you listed in the windows sound manager is the PCM5102EVM.  First, lets make sure you are outputting audio from the EVM by only connecting it, and setting it as the default device.  In PPC1.16, make sure you have the use input selected and the various jumpers and switches are in the indicated position.  Next, use a DMM in an AC mode or oscilloscope to verify there is an output on the PCM5102A.  

    I have not used the PCM1862EVM, so I am not sure if both EVMs can be connected to the same PC at the same time.

    Thanks,
    Paul

  • Hi Paul ,

    See the bottom line note . It looks like it doesn't recognize my input ?

    Thanks ,

    Isaac Achler

  • Hi Isaac,

    The TAS1020 datapaths are the same for the PCM5142EVM and the PCM5102EVM.  The difference between the devices is that the PCM5102 does not have an I2C interface.  This error is expected.  It means that the TAS1020 USB interface is detected, but the software does not see a device on the I2C bus.  The memory dump page will not read anything back.

    With the PCM1862EVM removed from the system, select the USB-miniEVM in the sound manager page as the default playback device.  Now launch your tone generator page and start a tone.  You see the green bars on the sound manager device.

    Now let's check the output.  I saw in your other thread about the PCM1862 that you are trying to use headphones to confirm the audio output.  That is not valid unless you have a pre-amplifier between the PCM5102 and the headphones.  The PCM5102 cannot drive the requisite current for headphones.  I recommend you use an oscilloscope or a multi-meter (even a simple handheld meter) in an AC mode and confirm that you see an output.

    Can you confirm this working? I do not want to use the PCM1862 to check the output as it just adds too many variables.

    Thanks,

    Paul

  • Hi Paul , 

    I disconnected the 1862EVM and used the tone generator just with the 5102EVM . 

    I probed with the scope and saw activities on the SCL and SDA lines , but no activity

    on the analog OUTR and OUTL lines in front of the RCA connectors outputs .

    The "Speakers" and "Microphone" in the PC Sound window also don't show any activity !

    See attached images :

    See attached images :

  •  In my previous email the image for the "Speakers" in the PC Sound window Playback

    did show an activity , but not the  "Microphone" in the Recording . 

  • Hi Isaac,

    You will not see any activity on the microphone page for the PCM5102EVM. The evm does not have the capability to self monitor.  

    The SDA & SCL do not indicate functionality for the PCM5102 as it does not have an I2C interface.

    If you see activity on the speaker page, and there is activity on the I2S (LRCK, BCK, DIN), then the device should be working.  Can you confirm the jumpers settings?

  • Hi Paul ,

    The verified again the jumpers , and they're exactly as shown on the attached 5102EVM image.

    The PC sound window shows the USB activity , but there is NO signal shown in the scope

    on:  DIN, WCLK and BCLK ;   nor on:  DIN, LRCK, BCK and LRCK .

    Interesting enough is that this time I even don't see activity even on:  SCL and SDA ,  that I

    saw last time .

    Thanks,

    Isaac Achler

    Tel anytime : (650)494-8544 

  • Just to make sure we check everything, you also confirmed that the dip-switches (SW3) are correct?  If you switch to the OPT input, you should see data on SCLK, LRCK, and BCK (though DIN will be 0) - is that the case?

  • The SW3 is correct ! I cannot use the OPT input, since I don't have the right cable for it . I'll try to purchase it .

     

  • Hi Isaac,

    I think I have a work-around for you.  The original CodecControl software did not support USB, but the hardware should.  Try the following:

    1. Configure the jumpers and SW3 for USB input.

    2. Launch the CodecControl software.

    3. Select View>Init Script

    4. Select OPEN and select this file:PCM5102 Connect to USB.cfg

    5. Press the RUN button.  

    I2S data should now be running to the PCM.

    Let me know if that works.

    Thanks,

  • Hi Paul,

    I followed up all your instructions , see the attached image , checked with

    the scope DIN, WCLK, BCLK  and found No activity down there .

    Also I checked again the SW3 switch jumpers (all LOW) for the USB flow .

    Thanks,

    Isaac Achler

    (650)494-8544

  • Hi Isaac,

    At this point I suspect there could be an issue with the hardware.  If you are looking at doing some analog evaluation of the PCM5102A, the PCM5142EVM would also work.  These devices share the same analog performance.  Shoot me an email at frost@ti.com with your address and I will sent the PCM5142EVM to you.

    Thanks,

    Paul

  • Hello Paul,

    Since both eval boards, the PCM5102EVM DAC & PCM1862EVM ADC, were

    faulty (the DAC wasn’t able to connect to the USB, and the ADC inserted

    clock noise to the USB while didn’t pass through the analog signals) -

    we’ve purchased replacement DAC & ADC eval boards from another vendors

    and completed our goal of passing audio signals in a loop, as required in our

    prototype system development.

    We would appreciate it very much if you could recommend TI purchasing

    department to refund us for our expenses which amount to:

    $223.90 + $169.40 = $393.30

    Sincerely Yours,

    Isaac Achler

    Sr. Design Engineer, Computer Electronics, 

    ITOP corporation

    (650)494-8544

     

  • Hi Isaac,

    It is unfortunate that you were not able to do the evaluation you wanted on the PCM EVMs.

    Any returns would need to be coordinated through the customer service center:

    Thanks,

    Paul

  • Hello Paul, 

    It's already more than 3 weeks since we sent TI Customer Support copy of our 

    purchase orders - for their refund on the PCM5102EVM-U and PCM1862EVM ,

    see attached PDF copies. Please try to approach them directly, as it is impossible

    for us to speak with them via their "hideout" behind the internet "case numbers".

    Please elaborate to them that if we do not get the refund within the next 7 days,

    we'll have to share the issue with BBB (Better Business Bureau) and the media.

    Thanks a lot,

    Isaac Achler

    Senior Design Engineer, Computer Electronics,

    ITOP corporation

    Palo Alto, CA 94306

    (650)494-8544TI_Order_183881_PCM5102EVM-U.pdfTI_Order_183882_PCM1862EVM.pdf

  • Hi Isaac,

    I responded to your email.  

    Thanks,

    Paul

  • 12 September 2019

    Dear TI Customer Support Team,

    ITOP corporation purchased on November 2018 from TI Store two

    evaluation boards: PCM5102EVM-U (DAC)  and  PCM1862EVM (ADC).

    ITOP started the use of these boards on May 2019, scheduled to finish

    their integration into the ITOP prototype development system by

    August 2019. Since ITOP encountered problems with the boards from

    the beginning, and it took too long for TI engineers to realize the faults

    of the boards (the DAC wasn’t able to connect to the USB, and the ADC

    injected clock noise pulses to the USB while it didn’t pass through the

    analog signals) -  ITOP then purchased a replacement DAC & ADC boards

    from another vendor, thus completing the task of looping audio signals

    within their prototype system development, while forced to delay their

    final completion schedule by couple of months!!!

    On August 2019 ITOP filled TI forms for refund on the 2 boards:

    $223.90 + $169.40 = $393.30

    A day ago (11 September 2019), after reminding TI engineer who helped

    debug TI boards, ITOP got an answer from TI Customer Support, that

    since ITOP purchased their boards on November 2018, TI can only offer

    replacement of the boards but not refund… (Case # CS0060329)

    Obviously, ITOP doesn’t need those boards any more!

    As requested, this letter is sent to TI Customer Support Team to get

    their final response, before it’s being forwarded to the interested

    party.

    Sincerely Yours,

    Isaac Achler

    Sr. Design Engineer, Computers Electronics,

    ITOP corporation

    Palo Alto, CA 94306

    (650)494-8544