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Type: Posts; User: tcottle

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    Yeah I came to the same conclusion. ...

    Yeah I came to the same conclusion. IntervalTimer seems to be a better library. At least it give the same results over the different Teensy models :D
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    Vindar and Kurt - Thanks! I made the changes...

    Vindar and Kurt - Thanks! I made the changes that Vindar recommended. Curiously the waveform is inverted(!) and the timing is different between the 3.2 and 4.0. At least the periods are correct...
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    Teensy 4 and TimerOne Issue

    I'm in the process of converting over one of our products that use the impossible to get Teensy 3.2 to the more available Teensy 4.0. I've turned up a bug in the TimerOne library

    I'm running on a...
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    I'm a new NanoVNA-F owner. Can you recommend a...

    I'm a new NanoVNA-F owner. Can you recommend a good source for quality terminators?
    Tnx!
    Todd
  5. It (kinda) lives!!!! Based on Paul's opinion...

    It (kinda) lives!!!! Based on Paul's opinion that it was a HW problem I decided to gently attempt to reflow the component side of the PCB using my hot air rework station. That seemed to do the...
  6. Hi Frank - I kinda did that already by sending...

    Hi Frank - I kinda did that already by sending out a diagnostic message using Serial1 and watching on an oscilloscope doing RS-232 decode. No activity on the TX line. The same sketch worked fine on...
  7. Thanks defragster. No LED indication in a very...

    Thanks defragster. No LED indication in a very dark room

    I'm uncomfortable applying 3V to pin 13 especially since I am pretty sure the sketch isn't running. The I/O should default to tristate...
  8. Thanks Frank - that is a really good point. I...

    Thanks Frank - that is a really good point. I checked the output of pin 13 with a scope but didn't check the LED. The LED test fine (and lights) using the continuity function on my DVM.
    The...
  9. Another Teensy 4 unresponsive after programming thread

    I'm having a similar problem like others are having with the Teensy 4. Mine is slightly different and maybe this helps in finding the problem

    I bought a Teensy 4 just after they were released...
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    Sure (once I figure out how to :-D)

    Sure (once I figure out how to :-D)
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    Hmmm can't edit my old post - anyway please...

    Hmmm can't edit my old post - anyway please change the references to 1.29 to 1.28 (the latest issue)

    Based on Paul's insight I grabbed a fresh copy of 1.28 and added a 10uS delay between CS_HIGH...
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    Well I have made some more progress. I don't...

    Well I have made some more progress. I don't think that it is a problem in the Teensy though. I suspect that the library is broken from 1.26 to 1.29 but I do not have a real Arduino board to verify...
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    Thanks and I understand. I'd rather have the T4...

    Thanks and I understand. I'd rather have the T4 sooner! ;)
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    Hi Paul - I really appreciate your help So I...

    Hi Paul - I really appreciate your help

    So I tore it down, checked the jumpers for continuity and intermittents, added the SO line. No change - black display

    I reinstalled 1.46beta10. Loaded...
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    Sorry I should have attached the pic 16358

    Sorry I should have attached the pic

    16358
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    Revisitng this topic. Installed 1.46beta10. ...

    Revisitng this topic. Installed 1.46beta10. Deleted Adafruit_GFX and Adafruit_ST7735 from hardware/teensy/avr/libraries folder. Installed the latest Adafruit GFX lib (1.4.8) and S&7735 and ST7789...
  17. Thread: New Scope

    by tcottle
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    Happy Birthday! I just bought a Rigol MSO5074....

    Happy Birthday!

    I just bought a Rigol MSO5074. A bit higher than your budget of 200EU but inexpensive for a higher end 4 channel scope.
    Changing the device software configuration (increased BW,...
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    Any chance of supporting castellated edges?

    Any chance of supporting castellated edges?
  19. You'ld be better off using the smartmatrix shield...

    You'ld be better off using the smartmatrix shield with the animated gif sketch
    https://github.com/pixelmatix/AnimatedGIFs
    With a couple of tweaks you can get a Teensy 3.2 to drive a 64 x 64...
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    A power on reset function. For testing now I...

    A power on reset function. For testing now I just cycle the power supply (I have the USB supply isolated). It would be handy since Teensy loader is always available after the first upload.

    If it...
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    Hi Paul A reset button would be handy -...

    Hi Paul

    A reset button would be handy - sometime my power supply is further than an arms length away
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    I think you forgot to hook up MOSI/MISO (11, 12)...

    I think you forgot to hook up MOSI/MISO (11, 12) :p
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    PRJC Shipping Times

    Just a thank you to Robin and anyone else involved in shipping product. I placed a small order on Friday morning, received a shipping confirmation the same day and the product was delivered on...
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    Arduino 1.8.2, Teensy 3.2 @ 96MHz, Teensyduino...

    Arduino 1.8.2, Teensy 3.2 @ 96MHz, Teensyduino 1.36b4, Radiohead library supplied w/ Teensyduino

    >1,000 TX cycles without lockup. Also removed the 10ms delays and 1S pacing delay in the main...
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    Will do - 1st thing in the morning!

    Will do - 1st thing in the morning!
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    Arduino 1.8.1, Teensy 3.2, Radiohead 1.74...

    Arduino 1.8.1, Teensy 3.2, Radiohead 1.74 Teensyduino 1.35

    I am using Adafruit RFM95 LoRa module and having same problem as the OP using the same code. Hangs on the second...
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    Are you sure you are pin 32? It looks like cross...

    Are you sure you are pin 32? It looks like cross talk to me
  28. Thread: Github down?

    by tcottle
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    One proposed theory about the outage 8528

    One proposed theory about the outage

    8528
  29. Thread: K66 Beta Test

    by tcottle
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    Updated Kickstarter beta board w/o issues. ...

    Updated Kickstarter beta board w/o issues. Running Win10 64bit Arduino 1.6.11
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    W00t! My Beta board has arrived. Thanks to...

    W00t! My Beta board has arrived. Thanks to Paul, Robin and Erin!
  31. See Table 10...

    See Table 10 http://www.nxp.com/documents/user_manual/UM10204.pdf Per the spec the minimum clock speed is "0" It looks like the library was setup for quick transfers but I can see where a few low...
  32. Thread: Microscope

    by tcottle
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    I use this one. I like the larger lens and...

    I use this one. I like the larger lens and builtin illumination

    http://www.globalindustrial.com/p/office-school-supply/accessories-furnishings/desk-lamps/fluorescent-magnifying-lamp-3-x-9-watt
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    I'm excited about getting a PCBA soldered by real...

    I'm excited about getting a PCBA soldered by real Goddess! I'm not sure if I should enshrine it or put it in use :p
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    Congratulations Paul! When you launched the...

    Congratulations Paul!

    When you launched the Kickstarter, where did you think that it would wind up?
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    For the other features I cannot foresee a need...

    For the other features I cannot foresee a need for or haven't figured out how to use yet (ex: DMA). It doesn't hurt that they are there though. Getting access a beta board early influenced what...
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    $44K in less than 24 hours(!) Quite a bit of...

    $44K in less than 24 hours(!) Quite a bit of pent up demand for the new series
  37. Thread: K66 Beta Test

    by tcottle
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    And ordered(!) Now that mere mortals can see the...

    And ordered(!) Now that mere mortals can see the pictures it looks like the Teensy 3.5 and 3.6 share a common PCB but are fitted with different components. Distinguishing between the two is going...
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    You want to keep a cheap wire wrap tool in your...

    You want to keep a cheap wire wrap tool in your box of tricks. It has a friendly 30ga stripper
    ...
  39. There is a bottom side Reset pad that you can...

    There is a bottom side Reset pad that you can access via a pogo pin

    6369
  40. Link for the various schematics ...

    Link for the various schematics https://www.pjrc.com/teensy/schematic.html
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    Fixed in 1601.04 ...

    Fixed in 1601.04

    http://www.visualmicro.com/forums/YaBB.pl?num=1451876141
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    Still broke for me as well ...

    Still broke for me as well ...
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    So I ran into the same problem today with...

    So I ran into the same problem today with TimerOne only I am using the Dec 28th issue of the VM plug in, Arduino 1.6.6 and Teensyduino 1.26.

    My sketch barfs with the same error as yours but...
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    Those are reverse polarity diodes. Only one is...

    Those are reverse polarity diodes. Only one is needed but I suspect that since they came two in a package, Paul paralleled them together.

    Now it does look like a better place for the shorting...
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    This should be added to the quick reference...

    This should be added to the quick reference thread
    https://forum.pjrc.com/threads/25395-Teensy-Quick-Reference-Code-Examples-Tips-and-Tricks
  46. Thanks! - I assumed that it was some kind of...

    Thanks! - I assumed that it was some kind of behind the scene trickery. We can I find the AVR section of the Teensy core?
  47. Teensy 3.1 port pins vs schematic reference designators

    I am moving a bit of code from an ATmega328P Arduino to the Teensy 3.1. I do a fair amount of bit banging by directly manipulating the GPIO ports rather than using digitalWrite calls. The Teensy...
  48. Hi Freto Markus' youtube video lead me to this...

    Hi Freto

    Markus' youtube video lead me to this thread and your code with the Mario test image motivated me to pick up a Teensy 3.1 and a 32x32 panel to experiment with driving RGB LEDs using BAM...
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