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  1. Ah, no, missed those. I'd used the ones from the...

    Ah, no, missed those. I'd used the ones from the Dexed site. Thank you!, that did the trick.

    I'm pleasantly surprised by the sounds, more to my liking than PreenFM2 ... out of curiosity, was...
  2. Hi I figured it try this out (it does make...

    Hi

    I figured it try this out (it does make sound!), but I'm having trouble with using/loading sysex files. It does seem to find the files but I keep getting a "Bulk checksum mismatch" error (see...
  3. As Theremingenieur say, chances are that you'll...

    As Theremingenieur say, chances are that you'll have to write it. No SPI devices are supported at this point and I guess one reason is that SPI isn't generalized as easily as I2S, because there's no...
  4. Thread: CS4272 issues

    by ubiubu
    Replies
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    1,823

    PS. sorry, was a bit in a rush earlier and...

    PS. sorry, was a bit in a rush earlier and realize my answer wasn't particularly precise. What I meant is I'm using the official/Apple "Lightning to USB Camera Adapter", which works with USB devices,...
  5. Thread: CS4272 issues

    by ubiubu
    Replies
    14
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    1,823

    Not sure, I think it's the same: the official...

    Not sure, I think it's the same: the official name is "Lightning to USB Camera Adapter".
  6. Thread: CS4272 issues

    by ubiubu
    Replies
    14
    Views
    1,823

    I'm still getting "Cannot use device" (that is,...

    I'm still getting "Cannot use device" (that is, after changing the two defines in usb_desc.h for USB_AUDIO, that's all it takes, right?; I've also changed the product name for good measure by...
  7. Thread: CS4272 issues

    by ubiubu
    Replies
    14
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    1,823

    ps. so I've googled around a bit, and editing...

    ps. so I've googled around a bit, and editing bMaxPower in usb_desc.c doesn't make a difference (I went down to "10"). Technically, it doesn't draw any power whatsoever from the iOS device (ie, I've...
  8. Thread: CS4272 issues

    by ubiubu
    Replies
    14
    Views
    1,823

    Ok, just what I thought. I just went back and...

    Ok, just what I thought. I just went back and removed the I2S isolator again and will run the board with Teensy as master.

    Is it possible though that the USB HID is somehow broken in iOS (I've...
  9. Thread: CS4272 issues

    by ubiubu
    Replies
    14
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    1,823

    I'm on 1.8.5., with the current version of the...

    I'm on 1.8.5., with the current version of the audio library pulled from github.

    But yeah, I guess the distortion I'm seeing comes from sticking USB input/output onto the I2S slave mode; it works...
  10. Thread: CS4272 issues

    by ubiubu
    Replies
    14
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    1,823

    Ok, so I've replaced the codec and things are...

    Ok, so I've replaced the codec and things are working now. So far so good. I'm on a Mac and predictably perhaps, I've been running into similar issues as did packetloss69 above, distorted audio over...
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    Cool, thanks. This did the trick ... Getting...

    Cool, thanks. This did the trick ... Getting output on all 8 channels now, I guess I must have done something wrong when stuffing the buffer. Now on to trying to hook things up to the PDB / audio...
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    Ah, thanks! Figured so, but was looking at the...

    Ah, thanks! Figured so, but was looking at the 128x64 version which looked too big. 102x64 ... didn't know that was a thing!

    And one OT follow-up, if I may (sorry, just was working backwards...
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    Sorry, slightly OT: Mind to share - Which OLED is...

    Sorry, slightly OT: Mind to share - Which OLED is that, mmalex?
  14. Thread: CS4272 issues

    by ubiubu
    Replies
    14
    Views
    1,823

    I did some further poking around and no dice....

    I did some further poking around and no dice. Everything seems to be ok (signals, power draw) except the output waveform. I desoldered the isolator to try in Slave Mode, but I'm seeing the same...
  15. Thread: CS4272 issues

    by ubiubu
    Replies
    14
    Views
    1,823

    Hi! could someone do me a favor and share a...

    Hi!

    could someone do me a favor and share a known-working version of the sine test for the CS4272?

    I'm bit confused by the various versions that float around, some using AudioOutputI2Sslave,...
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    Neat, I have a Rev. A face 2|4 PCB somewhere ... ...

    Neat, I have a Rev. A face 2|4 PCB somewhere ...

    Now with this and the CS42448, what are the odds T3.6 will see multichannel USB audio support?
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    Here is a follow up. To make this work properly,...

    Here is a follow up. To make this work properly, I guess one would really need to write 32 bytes per request (rather than 4 bytes), ie dma.TCD->NBYTES_MLNO = 8 * NUM_CHANNELS; (= 8 bytes data per...
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    Thanks. It does seem to work ok: Bypassing the...

    Thanks. It does seem to work ok: Bypassing the audio library, the code below writes a square wave to channels A-D. It doesn't seem to like AUDIO_BLOCK_SAMPLES = 128 (in which case it tends to work...
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    Thanks, yeah the "or" stuff wouldn't have worked....

    Thanks, yeah the "or" stuff wouldn't have worked. But I'm not at the point yet where I write junk to SPI0_PUSHR, I'm afraid. I'm pretty sure there's more details to deal with down the line, but at...
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    Yes, it runs, so it'll probably be that. The isr...

    Yes, it runs, so it'll probably be that. The isr doesn't run once, however, hence my question re DMA set-up.



    No, it's no a secret. At this point my problem is really about getting to work DMA...
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    SPI DAC for audio library

    Hi,

    I'd like to use a quad channel SPI DAC with the Audio library, but can't quite figure out how to make this work. The device in question has a 32 bit wide register, so the basic idea, I guess,...
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