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  1. Great thanks, :cool:

    Great thanks, :cool:
  2. I am sorry I made you unhappy. I do not intent...

    I am sorry I made you unhappy.
    I do not intent to do that.
  3. 25650 Is the clocking signal the problem? ...

    25650

    Is the clocking signal the problem?

    Should we use the 22.6 MHz MCLK, instead of the 11.3Mhz bclk?

    Should RX be 22.6 Mbit/sec?
  4. :cool:, delete all other posts, and only keep...

    :cool:, delete all other posts, and only keep this one.

    That is what are sure about now.


    The teensy does work with four ICS52000 at 10Hz sampling
    frequency, but not with the notwired board....
  5. I have emailed NotWired, and their engineer...

    I have emailed NotWired, and their engineer worked the problem for over one month without any reply yet.
    Discard the NotWired board from now on.

    I tried to connect the ICS52000 directly to the...
  6. @paul Here is th reply from invensense. ...

    @paul Here is th reply from invensense.




    The ICS-52000 complies to the TDM standard. The microphone datasheet pages 10-13 outline the requirements for successful microphone operation
    i.e....
  7. @paul, I have connected one engineer from...

    @paul,

    I have connected one engineer from invensense, inc. the producer of ICS52000.
    The ICS52000 works with the ADAU1452 well.
    He told me that there maybe some issue with the Teensy board.
    ...
  8. That is interesting. As far as I know, Doggy is...

    That is interesting. As far as I know, Doggy is the only one who has succesfully made the TDM microphones working with Teensy.
    Doggy is not using the norwired.com board, but connecting the ICS52000...
  9. HI Dreggory, As far as I see, in the forum,...

    HI Dreggory,

    As far as I see, in the forum, you the only one who has successfully made the Teensy working with the ICS52000.:cool:

    Could you share some detailed hardware connection and...
  10. What is the time sequence you connecting the...

    What is the time sequence you connecting the microphone pins and teensy? Is it like this
    ____________________________________________________________________________
    As soon as the programm...
  11. We have been trying to connectin the ICS52000...

    We have been trying to connectin the ICS52000 microphone with Teensy 3.6, but have no success.
    We are lost .

    Could you please share a detailed photo of your hardware connection between the...
  12. That is a sad news. we need to use 64 or more...

    That is a sad news. we need to use 64 or more microphone at the same time.

    Can you have a try of the ICS52000 microphone directly rather than using the the notwird board? :confused:
    dreggory ...
  13. Maybe i can try my luck with I2S. What is the...

    Maybe i can try my luck with I2S.
    What is the maximum number of i2s microphones, such as the ICS43434, can the Teensy 4.1 connect with?:confused:
  14. A demo of using the ICS52000 microphone with teensy is needed

    ------------------------------------
    Admin Edit: ICS-52000 microphones do not appear to work well with Teensy at 44100 Hz sample rate.
    ------------------------------------




    We have tried to...
  15. Still not working.

    Still not working.
  16. It this connection ...

    It this connection
    ---------------------------------------------------
    Mic Pin 6 (SD_O) to Teensy Pin 9 SCLK (Output, 11.3 MHz, Checked)
    Mic Pin 8 (SCK_I) to Teensy Pin 13 SDATA (Input, 11.3...
  17. HI WMXZ, Some one has successfully connected...

    HI WMXZ,

    Some one has successfully connected the ICS52000 with Teensy 3.6 .

    Dreggory was not using the NW-AUD-ICS52000 notWired.co Breakout Board,
    but connecting to the ICS52000 directly.
    ...
  18. We tried to connect our own ics52000 PCB with the...

    We tried to connect our own ics52000 PCB with the Teensy 4.1.
    But no luck, it is still not working. :confused:

    I think maybe it is the ICS52000 microphone's problem.
  19. I think maybe it is the 100k resistor 's...

    I think maybe it is the 100k resistor 's problems !!

    In the pcb of the 4 ICS52000 microphone array, they do not have the resistor.
    Thus we use the array, we may have to put a 100k resistor...
  20. Yes, I confirm that, there are no other parts than the one shown in this picture.

    Yes, I confirm that, there are no other parts than the one shown in this picture.
  21. Sorry this is the IP of the university, we can...

    Sorry this is the IP of the university, we can not share it freely.
  22. here is our design 25176 I will to see...

    here is our design

    25176

    I will to see whether it work or not tomorrow.
  23. HI WMXZ; I also check the code from...

    HI WMXZ;

    I also check the code from https://forum.pjrc.com/threads/48563-Cheap-ICS-52000-Microphone-Array-Board-for-TDM-evaluation
    which successfully connected the Teensy 3.6 with the ICS52000...
  24. i saw some one' code as shown below #include...

    i saw some one' code as shown below

    #include <Audio.h>
    #include <Wire.h>
    #include <SPI.h>
    #include <SD.h>
    #include <SerialFlash.h>

    // GUItool: begin automatically generated code...
  25. Can you help us get the ICS52000 four microphone...

    Can you help us get the ICS52000 four microphone array working with Teensy 3.6.

    Someone from the forum has successfully got the four microphone array working with Teensy 3.6.

    We have tried...
  26. I have designed more than 100 ics52000 PCB, what should I do with them?

    We are the audio and acoustic group at a unverisity, we need a largr number of microphone for recording a noise source in all directions.

    We have designed our own PCB with the ICS52000.
    We have...
  27. I have done the update, #include ...

    I have done the update,


    #include <Audio.h>
    #include <Wire.h>
    #include <SPI.h>
    #include <SD.h>
    #include <SerialFlash.h>
    #define SDCARD_CS_PIN BUILTIN_SDCARD...
  28. I have entered the filename.

    I have entered the filename.
  29. NO data save on the SD card , why?

    I have bought a Teensy 3.6, and connect the Teensy 3.6 with the ICS52000 microphone array compile and upload the exact code to teensy 3.6.
    Every things seems to be fine, but just no data is stored...
  30. I have tried the following code #include...

    I have tried the following code


    #include <Audio.h>
    #include <Wire.h>
    #include <SPI.h>
    #include <SD.h>
    #include <SerialFlash.h>

    // GUItool: begin automatically generated code
  31. Many thank for your reply. Could you please...

    Many thank for your reply.
    Could you please provide with some background materials, to help understand how teensy handle i2s and the TDM. We have limited knowledge about it and thus do not know how...
  32. We just want to send the microphone signal to the...

    We just want to send the microphone signal to the PC through the USB, but do not know how to do it?
  33. How to modify?

    How to modify?
  34. how to use the ics52000 microphone with teensy 4.1

    ------------------------------------
    Admin Edit: ICS-52000 microphones do not appear to work well with Teensy at 44100 Hz sample rate.
    ------------------------------------


    :confused:

    We are...
  35. I still have not make the teensy work with the...

    I still have not make the teensy work with the ICS52000,
    :(
  36. I have done another measurement using the ...

    I have done another measurement using the DS1052E DIGITAL OSCILLOSCOPE.
    The results are here.
    25105
    Here plot 1 is the pin 20 signal, and plot 2 is the pin 21 signal.

    As shown in the figure,...
  37. logic analyser results

    I have a bitscope logic analyser, https://www.bitscope.com/product/BS05/.

    I run your code and have a look at the signal on pin 20 and 21.
    The connection between the bitscope and the teensy 4.1...
  38. which pins are you connecting to?

    which pins are you connecting to?
  39. I will show you a better image tomorrow. Thanks...

    I will show you a better image tomorrow. Thanks for your feed back.
  40. Connection

    I will try the logic analyzer tomorrow.

    My connection between two board are
    25059
    Have a try the connect and my code.
  41. Correct

    Correct! Correct!
  42. Thanks for the reply. Her are our set up and...

    Thanks for the reply. Her are our set up and code.

    We connect the 4 ICS52000 microphone array from
    https://www.notwired.co/products/detail/nwaudics52000-notwired-co/605574/
    with the Teensy 4.1...
  43. has anyone successfully connect ICS52000 TDM microphone with Teensy 4.1?

    ------------------------------------
    Admin Edit: ICS-52000 microphones do not appear to work well with Teensy at 44100 Hz sample rate.
    ------------------------------------




    :confused:

    In...
  44. The ICS52000 does not have the LRCLK pin :(

    The ICS52000 does not have the LRCLK pin :(
  45. We have tried you suggestion, but it does not...

    We have tried you suggestion, but it does not work.

    Please help us figure out the connection between the ICS52000 and the teensy 4.1
  46. Replies
    2
    Views
    645

    background knowledge for this code.

    HI WMXZ,

    I have been asking a lot of questions and read many post of this forum.

    It seems like that the code you posted here is the most appropriate for our project.
    We want to connect the...
  47. For our project, we want to save the recording to...

    For our project, we want to save the recording to SD card, and process the data on PC
    using Matlab.

    I have a hard time to covert the 24 bit PCM data to floating point number. :(
  48. I just want to save the 24 TDM microphone signal to SD card as floating point number

    Using the audio library to process the data will discard the low 8 bit data of the orignal 24 bit microphone data.


    I just want to save the 24 bit TDM microphone signal to SD card as floating...
  49. I have been trying to run the following code. ...

    I have been trying to run the following code.
    The code runs correctly, but no file is stored on the SD card? :confused:



    / Record TDM input sound as raw data (18ch, Signed 24-bit...
  50. I am total confused, waht do you mean "If...

    I am total confused, waht do you mean

    "If you're using the audio library, only the top 16 bits are captured. The low 8 bits are lost."
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