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  1. Right, quick update guys, I got it to work in the...

    Right, quick update guys, I got it to work in the end without making any update to the library. Here's what I coded to change the Reverb mode every second for example :



    #include...
  2. Right, so as expected I'm now discovering 3 MIDI...

    Right, so as expected I'm now discovering 3 MIDI devices, which matches what Linux reports.



    MIDIDevice claim this=20001CC0
    len = 155
    Interface is unknown (might be Yahama)
    type: 36, len:...
  3. So I have now sorted my enumeration issue, and...

    So I have now sorted my enumeration issue, and I'm a bit confused because it seems that the library picked-up the device as a midi device and seems to have associated it correctly.



    USB2 PLL...
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    Right, I think I found the problem, I'm an idiot....

    Right, I think I found the problem, I'm an idiot. I soldered my usb socket back to front... Good thing I didn't blow up the Teensy nor the Amp :).
    I now have enumeration :


    USB2 PLL running
    ...
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    Sweet, thanks, unfortunately it doesn't print...

    Sweet, thanks, unfortunately it doesn't print anything when I plug the device in, so as I suspected I'm not completing enumeration at all. It will be handy later though once I solved the enumeration...
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    Thanks for the advice, I'll give that a go. ...

    Thanks for the advice, I'll give that a go.

    Here's the code I use :


    #include "USBHost_t36.h"

    USBHost myusb;
    USBHub hub1(myusb);
    USBHub hub2(myusb);
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    Teensy 4.1 USB host ERROR Followup

    Hi,
    I have an enumeration issue when I plug a Boss Katana amplifier to the USB host of my Teensy 4.1



    USB2 PLL running
    reset waited 6
    USBHS_ASYNCLISTADDR = 0
    USBHS_PERIODICLISTBASE =...
  8. It seems to be registered as a MIDI device out of...

    It seems to be registered as a MIDI device out of the box in Linux though, so their must be some sort of a driver built into Linux that does that right ? Would this be part of the Linux Kernel or...
  9. Here are some details from Linux of what happens...

    Here are some details from Linux of what happens when I plug the amp



    [ 167.356085] usb 1-1.3: new high-speed USB device number 4 using dwc_otg
    [ 167.488353] usb 1-1.3: New USB device found,...
  10. I have now used a shielded cable and grounded it...

    I have now used a shielded cable and grounded it on both sides, and I'm still getting the same error, so it seems to be an enumeration issue.

    I tried to plug a usb key onto it instead because...
  11. I have been doing some more reading on the forum...

    I have been doing some more reading on the forum and other places, and I think I made some progress but I also have new questions now. But let me start by answering one of my own question.

    This...
  12. Teensy 4.1 and sysex MIDI messages in host mode

    Hi All,
    Here's some context first. I'm trying to connect my guitar amp to a teensy 4.1 via usb in order to control the amp via some custom code running on the teensy. The end goal is to be able to...
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    Right I see what you mean, the device should be...

    Right I see what you mean, the device should be able to operate as a standard SPI device, so I should be able to get data off it with standard SPI libraries ? I will export this as well, thanks
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    I guess you mean "there is NO library". I was...

    I guess you mean "there is NO library".
    I was doing some googling and I think I ended up on your github : https://github.com/PaulStoffregen/teensy41_extram/blob/master/extNAND_t41/NAND_SPI_TEST.ino...
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    SQPI on Teensy 4.1

    Hi All,
    I have a Quad SPI flash chip that I would like to dump, and later re-programme. My plan is to dump the content to an SD card.
    If I understand correctly there is 2 empty location under the...
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