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Type: Posts; User: jarkman

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  1. Replies
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    That is super-helpful, many thanks! I hadn't...

    That is super-helpful, many thanks! I hadn't found the specs, I think I just didn't look hard enough.

    Off to do some reading now.
  2. ... further update - now I can't even put blink...

    ... further update - now I can't even put blink on it without the same kernel panic. Have uninstalled all third-party MIDI software and I don't see any non-Apple kernel extensions in the list.

    Not...
  3. I have something of an update on this, not sure...

    I have something of an update on this, not sure if it is at all informative, but just in case.

    I've moved to a new M1 Macbook Pro running 11.3.1, and didn't see this problem at first, until I...
  4. I have something of an update on this, not sure...

    I have something of an update on this, not sure if it is at all informative, but just in case.

    I've moved to a new M1 Macbook Pro running 11.3.1, and didn't see this problem at first, until I...
  5. Thanks, I'm plugged straight into the Mac with...

    Thanks, I'm plugged straight into the Mac with nothing else connected.
  6. Ed - thanks for the tests. I'll continue with my...

    Ed - thanks for the tests. I'll continue with my purge of the kexts.
  7. Ah, I see, thanks. So removing any third-party...

    Ah, I see, thanks. So removing any third-party kernel drivers that have anything to do with USB might be helpful ?
  8. Kurt - thanks, just tried that, but I'm afraid it...

    Kurt - thanks, just tried that, but I'm afraid it didn't help.
  9. Thanks, I understand. Update: Still not fixed....

    Thanks, I understand.

    Update: Still not fixed. Here's what I've done:

    Ran Apple hardware diagnostics, showed no error.

    Removed & reinstalled Arduino & Teensyduino.

    Uninstalled assorted...
  10. I can try that, but this problem doesn't happen...

    I can try that, but this problem doesn't happen with other Arduinos.
  11. An audio shield, plus some pots wired to analog...

    An audio shield, plus some pots wired to analog inputs.
  12. Frequent Mac hard reboot when uploading to teensy

    I'm running Teensyduino 1.53 (Arduino 1.8.13) on macOS Catalina 10.15.7, using a Teensy 4.0.

    Often (about 1 time in 3) my Mac does a hard reboot during the upload process. Black screen with...
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    Thanks! That makes my life considerably easier.

    Thanks! That makes my life considerably easier.
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    Will USB MIDI handle MPE ?

    Forgive me if this is a stupid question, but I'm just getting started with this.

    I want to make a Teensy-based instrument which is controlled via MIDI MPE. I can't work out if USB MIDI will...
  15. Thanks. I was only running too slow because I...

    Thanks. I was only running too slow because I hadn't noticed what it was set to, will try not to make that mistake again! :-)

    Wonder if they could provide some visual cue that you're near the...
  16. Great, thanks for the confirmation.

    Great, thanks for the confirmation.
  17. And, applying the new API to our original code...

    And, applying the new API to our original code brings it back to working in 1.40! Which means I'm very happy, we can get back to work.

    Just to get to the end of the story, is the underlying clock...
  18. Doing it with the transaction API, thus: ...

    Doing it with the transaction API, thus:

    #include <SPI.h>
    #define slaveSelectPin 10

    SPISettings settingsA(2000000, MSBFIRST, SPI_MODE1);

    void setup() {
    Serial.begin(115200);
    pinMode...
  19. Sorry, my bad with the sample. Thank you all for...

    Sorry, my bad with the sample. Thank you all for your help.

    I've just done a bit more leisurely a/b testing, and confirmed both of Paul's suspicions.

    This is running Kurt's sample (with MOSI...
  20. Interesting! Will experiment further and report...

    Interesting! Will experiment further and report back. Thanks.
  21. Here's a screenshot of the same code built with...

    Here's a screenshot of the same code built with 1.35 for comparison:
    12185
  22. Just a quick partial update - looking at the SPI...

    Just a quick partial update - looking at the SPI traffic with my Salaea, it looks as though the 1.35 builds are sending/receiving the expected 8 bytes from the code below, the 1.40 builds are sending...
  23. Thanks, both. I'll see if I can get the problem...

    Thanks, both. I'll see if I can get the problem to show in a smaller snippet.

    No, no warnings, and nothing leaps out at me as suspicious in the code.

    In the meantime, do you have any idea where...
  24. Teensy 3.6 SPI problem with Teensyduino 1.40 but not 1.35

    We have some SPI code which works when built with Arduino 1.8.1 / Teensyduino 1.35 but fails (apparently either reads the wrong data, but hard to be certain) when built with Arduino 1.8.1 /...
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