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Type: Posts; User: dukeblue219

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    Understood. I have no complaints as it is right...

    Understood. I have no complaints as it is right now. Certainly if I needed a fixed high-bandwidth solution an FPGA would be a more logical choice, with more headaches for me. I really appreciate the...
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    For many people it is, but even then, the program...

    For many people it is, but even then, the program should still work without crashing. I, however, could easily generate 50MB/s of serial data to a PC, though I'm not able to get that on the USBHS...
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    How did I miss that? Apologies for the...

    How did I miss that? Apologies for the unnecessary question, but thanks to you and mjs513 for the very clear responses. I'll give it a test today.
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    Is there a straightforward way to adjust this at...

    Is there a straightforward way to adjust this at runtime rather than tinkering with startup.c?
  5. To echo what Paul said, using either of those...

    To echo what Paul said, using either of those parts is not a trivial solder-at-home task. That .65mm pitch is going to be a pain in the butt to hand place, even if you have an oven. You'll never know...
  6. Essentially dumping binary data from an external...

    Essentially dumping binary data from an external device under test (a memory, ADC, etc) for post processing on a PC. I do a little bit of analysis in real time to check for errors but I need the full...
  7. I ran a Teensy 4 the other day with two 16' USB...

    I ran a Teensy 4 the other day with two 16' USB 2.0 active extension cables in series, along with a vacuum feedthru and a 5' micro-USB cable. No problem whatsoever. That said, using any device with...
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    There are USB Y-splitters for charging while also...

    There are USB Y-splitters for charging while also using data. For example, I have one to split my Amazon Fire Stick 4K's lone USB port, which is normally used for power only, so that it can also talk...
  9. You can always get a IMXRT eval board or any...

    You can always get a IMXRT eval board or any number of other Cortex-M boards if you want to play with the more traditional microcontroller dev environments and explore things like JTAG debugging....
  10. I think the most adjacent parallel bits on any...

    I think the most adjacent parallel bits on any one port is six with this Teensy. You'll have to do some rearranging of your commands to send 7 or eight bit words, though it sounds like that should be...
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    FYI - In vacuum it took about five minutes for a...

    FYI - In vacuum it took about five minutes for a Teensy 4 running a loop of floating point multiplication to reach 90C (per the internal tempmon) and shut itself down. It was straight of the box,...
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    Nope. Really wouldn't expect to with your heavy...

    Nope. Really wouldn't expect to with your heavy ion beam and its typical energies and ranges, and we keep the Teensy out of the beam line anyway. Some stray neutrons could maybe upset the Teensy but...
  13. Thanks, defragster!

    Thanks, defragster!
  14. Ok, that would be ideal. I don't use the Arduino...

    Ok, that would be ideal. I don't use the Arduino Serial Monitor except for occasional debugging, and I know the PC-side software can handle it. I collect data in one thread, process it in another,...
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    Paul, it looks like you've got a typo there....

    Paul, it looks like you've got a typo there. B1_00 is tied to 7 and 8 on your diagram.
  16. Teensy 4.0 - easiest high-speed output

    Hi,

    I'm waiting for delivery of my first Teensy 4.0 as an eval. With prior models I've used USB Serial as my output stream to a host PC and accepted the ~10Mbps virtual COM port stream into a...
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    I'm sure I'm not the only one operating these in...

    I'm sure I'm not the only one operating these in a vacuum chamber occasionally to control experiments, so the possibility of overheating is well-worth considering. With the 3.6 running OC'd at 240...
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    Yes, especially with highly-scaled flash (planar...

    Yes, especially with highly-scaled flash (planar flash from 2014 or 3D flash) it's pretty easy to do so. In fact they won't even operate error-free outside of the beam, so a heavy ion beam can easily...
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    Funny I just came across this post -- we...

    Funny I just came across this post -- we routinely use Teensy 3.2/3.6 (and soon 4) to operate devices being tested in the Texas A&M Cyclotron beamline (among several facilities we visit). They're...
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    Excellent! We do a lot of one-off prototyping and...

    Excellent! We do a lot of one-off prototyping and random digital component testing around here and the Teensy 3.1, 3.2, and 3.6 have been heavily used for these purposes. I am really looking forward...
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    THIS. Even if you can't write in an 8 or 16...

    THIS.

    Even if you can't write in an 8 or 16 bit mode and have to do some masking, I need the ability to write a whole port with a single GPIO register write (as in, a single bus cycle, so a custom...
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    I know this is an older post, but I may be able...

    I know this is an older post, but I may be able to help a bit. I have been doing what is basically high-speed bit-banging a parallel flash chip, with many of the same issues -- delayed input response...
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    Actually that's not a bad idea. Flip the headers...

    Actually that's not a bad idea. Flip the headers and mount from below. Won't be able to see the led or reach the pushbutton easily but that's very minor. Thanks!
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    It's not that a tall object is in the way so much...

    It's not that a tall object is in the way so much as we need line of sight from directly above the component that would be shadowed by the Teensy 3.6. I can't publicly post pictures of the board...
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    Thank you both. I'll give it a shot then. It'd be...

    Thank you both. I'll give it a shot then. It'd be nice to avoid re-spinning the boards I plug the Teensy into until our next planned revision.
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    Cutting Teensy 3.6 down to size?

    I have some existing projects that use a Teensy 3.1/3.2, but could use the features (speed in particular) of the 3.6. Electrically I could drop in a 3.6 just fine I believe, but without redesigning...
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