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  1. Good that you have persevered and succeeded - I...

    Good that you have persevered and succeeded - I have been watching your posts on the Raspberry Pi forum as well - although as you have now discovered the Teensy forum is a much better place to post a...
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    Final code and Teensy 4.0 also tested 21525 ...

    Final code and Teensy 4.0 also tested

    21525


    ////////////////////////////////////////////////////////////////////////////
    // GPL3 license Aug 2020
    // Based on Wolfson WM8960 STM32 demo code...
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    // 1111 1100 b0 =1 PLL on res +=...

    // 1111 1100 b0 =1 PLL on
    res += WM8960_Write_Reg(0x1A, 1<<8 | 1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<3 | 1);

    All done
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    Yes I started with the Raspberry Pi hat versions:...

    Yes I started with the Raspberry Pi hat versions:
    https://www.waveshare.com/wm8960-audio-hat.htm

    Oops this is link for first post general DAC
    https://www.waveshare.com/wm8960-audio-board.htm
    ...
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    ok sorry formula is on page 60 PLLK = int (2^24...

    ok sorry formula is on page 60 PLLK = int (2^24 (R-PLLN)) and examples in table 44

    44,10kHz
    f2 = 4 x 2 x 11.2896Hz = 90.3168MHz
    R = 90.316 / 12 = 7.5264
    PLLN = int R = 7
    k = int ( 2^24 x...
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    Sorry here is a schematic and datasheet 21521 ...

    Sorry here is a schematic and datasheet
    21521

    21522
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    Wolfson WM8960 DAC

    I fiddled around with a Wolfson WM8960 DAC until I got it sort of working with a Teensy 3.6 and 4.1 as Audio USB to i2s output passthrough for playing music from a (windows) pc

    The code that I...
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    21445 You need to adapt it for i2s out i.e. just...

    21445
    You need to adapt it for i2s out i.e. just replace usb with i2s

    This is for usbaudio from a pc

    This is what I use with Teensy 4
    // PCM5102-DAC Teensy 4
    // VCC 5V
    //...
  9. You need AudioControlSGTL5000 sgtl5000_1;...

    You need AudioControlSGTL5000 sgtl5000_1; object
    I am assuming you are using the audioshield?
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    The holes next to the micro-SD card reader, are...

    The holes next to the micro-SD card reader, are in the same order as the Teensy 4.0, but in a different location. Going from top to bottom on the above picture of the back side, the pins are:
    Pin...
  11. naah the RC part is the boss over thee...

    naah the RC part is the boss over thee...
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    Ok I will answer half of my own question - no you...

    Ok I will answer half of my own question - no you cannot use PSRAM on the audioboard because its requires Quad SPI.
    I still do not know if the delay library, with modification, can use the PSRAM on...
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    Haha.. Essen is OK now. I live 50km away....

    Haha.. Essen is OK now. I live 50km away.
    Juliane was great...but..part of the past, like Grundig and the others.

    p.s. Gianna Nannini (Italy) was better ;)

    ..or Sinatras daughter Nancy

    Yes...
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    Yes but because you did not look after your great...

    Yes but because you did not look after your great electronics companies - Grundig, Telefunken, Siemens. Dutch did not look after Philips. Brits lost Mullard...

    Edit
    But you you did make Julianne...
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    I read it as price versus quality...

    I read it as price versus quality...
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    I also noted you installed the 23LC1024 ram on...

    I also noted you installed the 23LC1024 ram on the audio board for longer delay times.
    It is worth enquiring if it is possible to use PSRAM on a Teensy 4.1 for this, and is it is possible to install...
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    I had a look and it is certainly different. I did...

    I had a look and it is certainly different. I did Lisp a long time ago in a a final year programming course and I remember I had to buy another keyboard because the 9 and 0 keys (with the round...
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    Hi good review but I notice you said you had a...

    Hi good review but I notice you said you had a lot of noise and you are new to Teeny?
    Did you try the HP filter disable? - "adcHighPassFilterDisable();" ?
    Discussed...
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    Yes true but pins are precious

    Yes true but pins are precious
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    "Yes, but there are also schottky that allows...

    "Yes, but there are also schottky that allows only a 300mv drop, that leaves with 4.7v. Usually sufficient for most 5V circuit needs"

    If your reasoning is valid the next device will also have a...
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    What I mean20965 is this - compare yours on the...

    What I mean20965 is this - compare yours on the left with the previous on the right:
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    Thank you very much - I like the separate USB...

    Thank you very much - I like the separate USB Host block and it follows the footprint pins layout
  23. Staying tuned - Class D changed my long-held...

    Staying tuned - Class D changed my long-held strong disposition for even-order second harmonic distortion amplifiers forever...
  24. Yes thanks I know that it is a much less capable...

    Yes thanks I know that it is a much less capable device than your ME-70 which is why I am interested in what you have done with yours - it will be a more efficient approach than reverse engineering...
  25. Yes please - I have a Boss ME-25 which could do...

    Yes please - I have a Boss ME-25 which could do with a backroom upgrade
  26. Yes and this is why I have changed my high blood...

    Yes and this is why I have changed my high blood pressure medication...
    https://www.sciencedaily.com/releases/2020/03/200323101354.htm
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    Did you bridge two selection pads to make the LCD...

    Did you bridge two selection pads to make the LCD an i2c instead of SPI? If yes then carefully check if they did not use zero ohm resistors to select the SPI mode which means you have a short from V+...
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    I used both with an ATMega1284 with a +5v supply...

    I used both with an ATMega1284 with a +5v supply but the MCP6001/2/4 data indicates a power supply range of 1.8V to 6.0V, and the TL97x family operates at voltages as low as 1.35 V.
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    Thank you both - yes I have one Rev D audioboard...

    Thank you both - yes I have one Rev D audioboard and it works well with the Teensy 4

    I am a little bit suspicious of the local supplier who "only" stocks the rev b audioboards - I suspect they...
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    19363 USB Audio working great now with a...

    19363

    USB Audio working great now with a Teensy 4 and a PCM5102A - thank you very much - as shown in left front of attached workspace picture.
    I have noticed that unlike with the Teensy 3.x I...
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    Paralleled diodes is a big no-no - I assume it is...

    Paralleled diodes is a big no-no - I assume it is connected to a pad or unused
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    1930019301 Use the line in (combine the L and...

    1930019301

    Use the line in (combine the L and R)
    Then use the first stage OpAmp from either:
    https://www.electrosmash.com/pedalshield-uno
    or
    http://wiki.openmusiclabs.com/wiki/StompShield
    ...
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    Yes you are right the (de-)multiplexer such as...

    Yes you are right the (de-)multiplexer such as 4067/4051 type, will not hold its analog voltage value - for that you will need either some of the old-fashioned (output) sample and hold circuits or a...
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    Yes as my first post I would also like to...

    Yes as my first post I would also like to congratulate you on the fine work you are doing with the Teensy - hope you will continue for many years.
    As I have previously done something with the VS1053...
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