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Type: Posts; User: winchymatt

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  1. Replies
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    SPI WiFI Module recommendations ?

    Hi

    So I've been playing with the Teensy 4.0 and the WIZ820io module and getting some pretty good results. However, I now want to switch to a WiFi link. Ideally I want the run the Teensy as an...
  2. That's a nice solution, I'm going to look at...

    That's a nice solution, I'm going to look at doing something similar but with a really short cable straight down to a board mounted under the teensy 👍
  3. Thanks Sebastian, Good information to know! I...

    Thanks Sebastian,

    Good information to know! I guess this is why its better to use the onboard SD socket! I wish there was a socket available to fit the Teensy 4.0.

    Matt.
  4. After trying many variations of hardware it...

    After trying many variations of hardware it simply comes down to this: The SPI bus does NOT behave well on a breadboard setup! I have spent way too long resolving this issue and even broke out the...
  5. Well I purchased the Teensy WIZ820IO & SD card...

    Well I purchased the Teensy WIZ820IO & SD card adapter but I'm still having problems getting both to work together! But now I'm getting different results! I changed the code to use the SD library...
  6. Replying to my own post, I now have the Teensy...

    Replying to my own post, I now have the Teensy 4.1 working with the WIZ820io. The issue in this case was a breadboard issue! cheap prototyping board! Anyway, now that is resolved, this leads me to...
  7. My Teensy 4.1 arrived today, and I'm getting it...

    My Teensy 4.1 arrived today, and I'm getting it rigged up but have hit a slight stumbling block. How do I get the Ethernet library to use an external device such as the WIZ820io or ultimately an SPI...
  8. Thank's for testing on your hardware, confirms...

    Thank's for testing on your hardware, confirms what I thought that it is something to do with my hardware. I will plug in an analyzer today and have a poke around, but if I can't get it working I...
  9. The card adapter has no active or passive...

    The card adapter has no active or passive components on-board, just the signals routed through to the card pins.
  10. I had added PU resistors to the CS lines, I could...

    I had added PU resistors to the CS lines, I could also try on the clk and signal lines. I do have an analyzer so I will see whats happening to the bus when card is plugged in.
  11. Hi Kurt, The SD adapter on its own works fine,...

    Hi Kurt,

    The SD adapter on its own works fine, as does the Ethernet on its own. Which leads me to believe its something to do with the breadboard signal issues.

    The discontinued SD adapter just...
  12. Teensy 4 SD card and WIZ820io not playing well together

    Hi,

    I've been using the Teensy 4 with the WIZ820io Ehternet adapter for the last week or so and having great success at 30Mhz, that is until I added an SPIO SD card. Now I have issues getting the...
  13. Well indeed it was an array being overwritten by...

    Well indeed it was an array being overwritten by a memcpy() using the wrong length of data. An error introduced when porting. I managed to track it down by increasing my global varibale size until I...
  14. Hi Kurt, Thanks for the reply. Yes I realize...

    Hi Kurt,

    Thanks for the reply. Yes I realize it's difficult without seeing code. I do alot of stuff on arrays using pointers, and maybe when I ported it and scaled my array sizes down something...
  15. Hi Mark, I'm not seeing anything untoward on...

    Hi Mark,

    I'm not seeing anything untoward on compiler output. As for the stack I can't find anything that would be using that much! but t is the only explanation I have right now, but still don't...
  16. Teensy 4 Strange behavior unless global variables declared static

    Hi,

    I've just ported a rather large project from a BeagleBone to a teensy 4! I have simplified things somewhat and reduced the amount of data required but amazingly it ported fairly easily and...
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    Perfect, thank you Paul!

    Perfect, thank you Paul!
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    Hi Frank, So I have my project built now, but...

    Hi Frank,

    So I have my project built now, but I'm seeing there are issues with using the SD card to play audio files using the Audio lib.

    I have read that the standard "SD.h" does not support...
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    Thank you!

    Thank you!
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    Hi, I have a similar audio related question...

    Hi,

    I have a similar audio related question for the 3.5, hope I'm not hijacking this thread.

    I'm working on a new design using the 3.5, previously using the 3.2 Teensy. I have the audio running...
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    Great! Thank you Paul. Amazing product!

    Great!

    Thank you Paul.

    Amazing product!
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    Teensy 3.5 FIFO Serial Ports

    Hi,

    Which of the six serial ports have the FIFO buffer?

    Is there some resource i'm missing that I can find this kind of technical information?

    Cheers.
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