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  • hoho's Avatar
    Yesterday, 10:42 PM
    lsusb -v -d 525:a4a7 Bus 001 Device 003: ID 0525:a4a7 Netchip Technology, Inc. Linux-USB Serial Gadget (CDC ACM mode) Couldn't open device, some information will be missing Device Descriptor: bLength ...
    4 replies | 57 view(s)
  • hoho's Avatar
    Yesterday, 10:28 PM
    @KurtE, thanks for the suggestions! Something is definitely happening under the hood. Also there seems to be a bug somewhere (likely in the USBHost_t36)... Teensy is off, the Pi device is started and plugged in to...
    4 replies | 57 view(s)
  • hoho's Avatar
    Yesterday, 12:45 AM
    Hi, I'm trying to get the second high speed USB port on Teensy 3.6 working for my scenario. To power the Pi-like device I have a separate 5v power supply, connected power and ground pins of the USB connector to...
    4 replies | 57 view(s)
  • hoho's Avatar
    06-09-2019, 09:36 PM
    Hi, I need to send the audio data from Teensy to a Raspberry Pi-like board and receive it back (ideally, I'm talking about realtime sending of all 6 channels from TDM input of CS42448 board to Pi and receiving of all...
    1 replies | 102 view(s)
  • hoho's Avatar
    05-09-2019, 08:51 PM
    The codec chip on OSH Park links to CS42448-CQZ. I've found CS42448-DQZ on AliExpress which seems to be exactly the same except for the wider working temperature range. Should DQZ match as well?
    7 replies | 1327 view(s)
  • hoho's Avatar
    05-08-2019, 01:24 AM
    Could you by any chance make two or three for me? If yes, what will the price look like?
    130 replies | 30423 view(s)
  • hoho's Avatar
    05-08-2019, 01:03 AM
    I think you have opened a Pandora's box for me... I was exploring more and that CS42448 is exactly what I need! Thanks. Am I correct that https://oshpark.com/shared_projects/2Yj6rFaW is the empty board only? Is there...
    13 replies | 306 view(s)
  • hoho's Avatar
    05-07-2019, 10:07 AM
    Soldered a jack and tested the pass through with an audio player. It works but the level directly from the Audio Player -> Phones is significantly higher than the level from the Audio Player -> ADC -> Pass through ->...
    4 replies | 272 view(s)
  • hoho's Avatar
    05-07-2019, 12:32 AM
    In desperation I have created even two topics on it :). Good news is that I have progress. That's the main one: https://forum.pjrc.com/threads/55963-Quad-channel-input-problem (I've reported the progress there)....
    13 replies | 306 view(s)
  • hoho's Avatar
    05-07-2019, 12:29 AM
    OMG, several nights of desperation and I think I have managed to make it working. I'm definitely doing it not 100% correctly, but here is my diff to the Audio library which makes my setup sound: diff --git...
    4 replies | 272 view(s)
  • hoho's Avatar
    05-06-2019, 09:42 PM
    @WMXZ that might be something I need. To get my thing working (https://forum.pjrc.com/threads/55963-Quad-channel-input-problem). But it exactly does compile, but doesn't work. And it seems incomplete (comparing to...
    11 replies | 867 view(s)
  • hoho's Avatar
    05-06-2019, 03:43 PM
    I try to realistically estimate my capabilities and that CS42448 is over my head for now. I am a software engineer with a little Arduino experience. I can solder the pins to the board, I can solder a resistor if I...
    13 replies | 306 view(s)
  • hoho's Avatar
    05-06-2019, 12:04 PM
    Thanks for the response! I will really try SD card. As you say, there is a chance that it will do the thing. It's just I've been looking at the similar reasoning (with some bandwidth calculations) in some other thread....
    13 replies | 306 view(s)
  • hoho's Avatar
    05-03-2019, 11:02 PM
    I'll repost it here since it really seems to be a technical support question and I fear the original topic will be buried (https://forum.pjrc.com/threads/55963-Quad-channel-input-problem). @PaulStoffregen was Teensy...
    0 replies | 79 view(s)
  • hoho's Avatar
    05-03-2019, 10:02 PM
    @PaulStoffregen was Teensy 3.6 ever tested with simultaneous quad channel input and output? It seems like there is a configuration problem. With the current configuration only quad channel output works. I was looking...
    4 replies | 272 view(s)
  • hoho's Avatar
    05-02-2019, 06:17 PM
    And I actually even doubt that flash memory is what I need. It seems I can't overwrite the data without erasing it first and the time to erase seems to be insane on a flash chip (tens of seconds to minutes)...
    13 replies | 306 view(s)
  • hoho's Avatar
    05-02-2019, 04:40 PM
    Or https://www.ebay.com/itm/5-PCS-W25Q128FWSIG-SOP-8-NOR-Flash-Serial-SPI-1-8V-128M-bit-16M-x-8-7-5ns/323757654506... I am definitely bad at reading the specs.
    13 replies | 306 view(s)
  • hoho's Avatar
    05-02-2019, 04:33 PM
    And I'm even more confused because in some specs W25Q128FVSG is 128MB in some others it's 128M-bit... I've found another one which seems to be 128MB:...
    13 replies | 306 view(s)
  • hoho's Avatar
    05-02-2019, 02:52 PM
    Hi, There is a number of threads on SPI Flash, the data is rather scattered and incomplete though. I would really appreciate some clarification. I need to record fragments of audio (from the ADC board), store...
    13 replies | 306 view(s)
  • hoho's Avatar
    05-02-2019, 01:50 AM
    hoho started a thread PCM1802 and FSYNC in Audio Projects
    Hi, I have two types of ADC boards, one is PCM1808, another one is PCM1802. PCM1808 connection is fairly simple (thanks to JayShoe who shared the info in another thread). But PCM1802 has one more pin called...
    1 replies | 102 view(s)
  • hoho's Avatar
    05-02-2019, 12:57 AM
    Hi, I'm using PCM1808 ADC board (as mentioned in this topic: https://forum.pjrc.com/threads/53069-Teensy-with-PCM5102a-Module-via-I2S) with Teensy 3.6. I'm trying to use two of them at a time. At first, I...
    4 replies | 272 view(s)
  • hoho's Avatar
    05-02-2019, 12:33 AM
    @JayShoe, just wanted to thank you again! I've received the devices and it seems to work (except for the quad channel input but I'll create another topic about it as it seems to be a bug).
    22 replies | 2207 view(s)
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