Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: PaulStoffregen

Page 1 of 10 1 2 3 4

Search: Search took 0.13 seconds.

  1. Replies
    29
    Views
    526

    I should have mentioned, another property some...

    I should have mentioned, another property some people are expecting is identical result for "reverse" mapping.

    In other words, ideally these should give the same result for all inputs:

    map(x,...
  2. Replies
    29
    Views
    526

    I'm not eager to extend the SPI library public...

    I'm not eager to extend the SPI library public API this way, so as written, no, probably not.

    But I would be happy to merge this if it didn't change the public API. Maybe some trickery with...
  3. Replies
    29
    Views
    526

    Has anyone looked at the new map() function yet?...

    Has anyone looked at the new map() function yet?

    Several issues were reported on these 2 threads:

    https://forum.pjrc.com/threads/63230-map()-returns-different-values-on-arduino-vs-teensy
    ...
  4. Yes, "annoying" and "pedantic" are exactly the 2...

    Yes, "annoying" and "pedantic" are exactly the 2 words I would use.

    My current thinking is this feature does more harm than good and we should probably not use it (for a non-beta release) until a...
  5. Replies
    29
    Views
    526

    I've never heard of this syntax either. ...

    I've never heard of this syntax either.




    This thread.
    https://forum.pjrc.com/threads/62473-Adding-Print-class-printf()-format-string-vs-arguments-checking
  6. Replies
    8
    Views
    210

    Normally SPI isn't used over cables. It's really...

    Normally SPI isn't used over cables. It's really meant for connecting chips together on a circuit board over relatively short distance.
  7. Replies
    8
    Views
    711

    I gave this a shout-out on Twitter. ...

    I gave this a shout-out on Twitter.

    https://twitter.com/PaulStoffregen/status/1319980995202879489
  8. Replies
    28
    Views
    1,045

    Sorry I missed your email. It wasn't you. I'm...

    Sorry I missed your email. It wasn't you. I'm just bad at email....
  9. Having talked about rationale and tech, I'd like...

    Having talked about rationale and tech, I'd like to address the philosophical points and directly answer your questions.

    First, I want to politely disagree with the "stuff seems to be increasingly...
  10. Now, about the tech side.... First, let me...

    Now, about the tech side....

    First, let me assure you that if you were to sign a NDA with NXP and obtain the security manual, I'm confident you'd find the whole thing pretty underwhelming. I did....
  11. This kinda does come off as quite a rant. But...

    This kinda does come off as quite a rant. But yeah, I get your viewpoint. Any sort of secret documentation feels pretty bad. On a personal level, I really don't like it either.

    Obviously I...
  12. Replies
    41
    Views
    820

    I'm uploading 1.54-beta2 right now, but it's...

    I'm uploading 1.54-beta2 right now, but it's going very slowly. Looks like my ISP is severely throttling. ETA is looking like 2 hours to get it all uploaded.
  13. Replies
    41
    Views
    820

    Yes, so much to do. But right now I'm packaging...

    Yes, so much to do. But right now I'm packaging up 1.54-beta2, so we can have a much better starting point.

    I considered bringing the static malloc stuff into the core library, and will probably...
  14. Replies
    8
    Views
    277

    Much of the work in ILI9341_t3 started in various...

    Much of the work in ILI9341_t3 started in various optimized copies of ST7735. Of course all are built on top of Adafruit's work and generally follow their GFX API, though probably not much of...
  15. Replies
    41
    Views
    820

    Added....

    Added.
    https://github.com/PaulStoffregen/cores/commit/ea276ee57a364306562452fef42d3815fb2fbb59




    Updated Bounce2.
  16. Replies
    41
    Views
    820

    I'm pretty sure this will be the official fix. ...

    I'm pretty sure this will be the official fix.

    https://github.com/PaulStoffregen/cores/commit/a2246a5a0278a93877219e219907b79b34ecfc39

    Any chance you could edit your copy of startup.c to delete...
  17. Whether anything is wrong on the Teensy side, I'm...

    Whether anything is wrong on the Teensy side, I'm not 100% sure. I was able to find lots of cases where the Linux / Ubuntu / Gnome experience is confusing & frustrating. My gut feeling is these...
  18. I tried to create a screencast demo with the USB...

    I tried to create a screencast demo with the USB mic, but reprogramming Teensy causes my Linux machine to sometimes automatically switch the audio input from the USB mic to Teensy's silent incoming...
  19. I tried plugging that USB mic into a USB3 hub,...

    I tried plugging that USB mic into a USB3 hub, and apparently my PC can't see it at all through that hub. Grrr...

    I crawled under my desk and plugged the mic into a USB controller card I have in...
  20. I tried to reproduce this problem today, using...

    I tried to reproduce this problem today, using the code in msg #4 and Ubuntu 18.04, running on Teensy 4.1 and an audio shield connected to a monitor speaker.

    At first it seemed like Audio wasn't...
  21. Replies
    41
    Views
    820

    I'm pretty sure these problems are due to...

    I'm pretty sure these problems are due to not-so-robust parsing of symbol table data, and lack of error detection. I'd recommend adding a boolean for each item which defaults to false. Set each...
  22. If you expand this to all 3 hardware serial...

    If you expand this to all 3 hardware serial ports, and if all 3 could be expected to have sustained running at nearly max MIDI bandwidth, using Teensy LC you might need to be mindful of how much...
  23. Replies
    3
    Views
    105

    Yes. I believe that tutorial will work with...

    Yes. I believe that tutorial will work with Teensy in place of the Arduino Uno, but only if you have programmed your Teensy with the USBtoSerial sketch (or similar code).

    In Arduino, first select...
  24. Definitely don't use SoftwareSerial. It barely...

    Definitely don't use SoftwareSerial. It barely even works for just 1 instance, and when it does it hogs up the CPU which tends to make everything else perform quite badly.

    From everything you've...
  25. Replies
    21
    Views
    7,101

    Teensyduino 1.54-beta1 has the new & improved...

    Teensyduino 1.54-beta1 has the new & improved map() which hopefully solves all these problems.

    https://forum.pjrc.com/threads/63997-Teensyduino-1-54-Beta-1

    If anyone is still watching this...
  26. Teensyduino 1.54-beta1 has the new & improved...

    Teensyduino 1.54-beta1 has the new & improved map() which hopefully solves all these problems.

    https://forum.pjrc.com/threads/63997-Teensyduino-1-54-Beta-1

    If anyone is still watching this...
  27. Replies
    41
    Views
    820

    Even stranger, adding a single nop instruction...

    Even stranger, adding a single nop instruction *later* in ResetHandler also makes Teensy 4.1 work!

    Very mysterious......
  28. Replies
    41
    Views
    820

    Ugh, this makes no sense to me.... But adding...

    Ugh, this makes no sense to me....

    But adding a single nop instruction at the beginning of ResetHandler (without the vector_table array in bootdata.c) also fixes the problem with Teensy 4.1.
  29. Replies
    41
    Views
    820

    Likewise, NOW is the moment to bring up any issue...

    Likewise, NOW is the moment to bring up any issue you believe I might be able to fix quickly, like tonight only.

    If I can't reproduce a problem within 5 minutes, I definitely will not work on it...
  30. Replies
    41
    Views
    820

    Can you give me a link to the forum thread with...

    Can you give me a link to the forum thread with that exact same program? And clear / quick way to test (ideally with Linux)?

    Looks like I messed with Teensy 4.1 with the last minute HAB changes,...
  31. Maybe your search was case sensitive? It appears...

    Maybe your search was case sensitive? It appears on page 986 in all caps. You can see "SYSTICK" appears twice in the 13.3.2.1 screen grab I posted on msg #3 above.

    But as I mentioned earlier,...
  32. Normally WAV files are just raw audio data with a...

    Normally WAV files are just raw audio data with a small metadata header. If you know the data is 16 bits and stereo or mono, and if you don't mind a small glitch sound, you can just play the entire...
  33. Replies
    11
    Views
    417

    Officially, no news yet. Unofficially, good...

    Officially, no news yet.

    Unofficially, good guesswork. ;)
  34. Replies
    1
    Views
    108

    This might be simpler than trying to port NXP's...

    This might be simpler than trying to port NXP's code.

    https://github.com/WMXZ-EU/USB2
  35. Probably best to try using a different PC at this...

    Probably best to try using a different PC at this point. First check if the other PC detects the Teensy that's been programmed with this PC. Then use Arduino on that machine to reprogram it. If it...
  36. After much fiddling, I came up with this. ...

    After much fiddling, I came up with this.

    https://github.com/PaulStoffregen/cores/commit/92b126da26047c52023b4ae28212352c30d71744

    Hopefully it's better?

    Here's a little test program...
  37. Ok, I see ports events in this new log. Here's...

    Ok, I see ports events in this new log.

    Here's 2 things to try...

    1: Turn off Auto mode in Teensy Loader. Then press the button on your Teensy. You should see Teensy Loader detect the board. ...
  38. When I first tried using Systick (about 2 years...

    When I first tried using Systick (about 2 years ago, on the 1052 chip, months before we started the Teensy 4 beta test) is was pretty obviously running much slower than expected when configured for...
  39. This logfile has no "ports" events! Maybe...

    This logfile has no "ports" events! Maybe anti-virus software is blocking or has deleted teensy_ports.exe? Normally it's supposed to be installed in C:\Program Files (x86)\Arduino\hardware\tools.
    ...
  40. I'm pretty sure the Arduino SD library is not up...

    I'm pretty sure the Arduino SD library is not up to this task. Maybe SdFat could do it, but even then, I'm not sure.

    The audio shield and audio library certainly can do simultaneous input &...
  41. Replies
    3
    Views
    138

    When Teensy runs in I2S slave mode, the external...

    When Teensy runs in I2S slave mode, the external I2S device is in control of the sample rate.

    You can edit the block size in AudioStream.h. Most of the audio library automatically adapts, but...
  42. Let's give this a try in 1.54-beta1 and see if...

    Let's give this a try in 1.54-beta1 and see if the general consensus is "nice" or "extraneous".

    The main issue is int and long are both 32 bit on Teensy, but this format warning is pretty pedantic...
  43. Replies
    49
    Views
    1,757

    I decided to reverse course on this. All...

    I decided to reverse course on this. All programs will be back to having 512K DMAMEM & heap available on Teensy 4.0 & 4.1.
    ...
  44. The schematic on the website has been updated to...

    The schematic on the website has been updated to fix this mistake.
  45. Replies
    3
    Views
    138

    As with almost everything in the audio library,...

    As with almost everything in the audio library, detailed documentation is in the design tool right-side panel.

    https://www.pjrc.com/teensy/gui/?info=AudioInputI2Sslave

    One difficult issue you...
  46. Replies
    57
    Views
    2,087

    Fixed it just now

    Fixed it just now
  47. Replies
    57
    Views
    2,087

    Updated, now says "Teensy LC & 3.x & 4.x". ...

    Updated, now says "Teensy LC & 3.x & 4.x".




    Under "Hardware Requirements" the page does say:



    I've added "Teensy 4.x boards support use of any set of pins, not limited to only 8 fixed...
  48. Replies
    57
    Views
    2,087

    Fixed Fixed FLASHMEM for code usage, added...

    Fixed



    Fixed FLASHMEM for code usage, added EXTMEM.




    Added a link under "Memory Expansion".
  49. Replies
    57
    Views
    2,087

    @Degragster - Any chance I can talk you into...

    @Degragster - Any chance I can talk you into re-writing the guidance in msg #24 in a step-by-step style?

    I want to put this on the download page. But the conversational style of msg #24 isn't a...
  50. Replies
    57
    Views
    2,087

    Added under "Other Libraries". Added...

    Added under "Other Libraries".




    Added some time ago...

    https://www.pjrc.com/teensy/gui/?info=AudioEffectRectifier
Results 1 to 50 of 500
Page 1 of 10 1 2 3 4