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  1. Thanks KurtE, I would be happy to use the...

    Thanks KurtE, I would be happy to use the interface that's intended for connection to the optional QSPI memory chip on the T4.1. I would plan to gain access to it by soldering a custom breakout board...
  2. Okay, so I'm guessing that likely means that the...

    Okay, so I'm guessing that likely means that the hardware assisted single/standard SPI transfers will likely be much faster than any software implementation of Dual/Quad SPI? It seems strange that...
  3. Communicate with TFT using Dual or Quad SPI (QSPI)

    Hi there,

    I'm wondering if anybody has come across any Quad SPI libraries that could be used as examples or used directly. I'm communicating with and one of Bridgetech's FT813 TFT displays and I...
  4. Hello again, Sorry about this inquiry. Looked...

    Hello again,
    Sorry about this inquiry. Looked through it again, tracing my way through the libraries and I found that I was trying to set the SRE bit in the wrong place in the code. The pins and...
  5. Teensy 3.6 is SRE configuration possible on SPI pins due to EMI issues?

    Hi Paul/All,
    I've been playing around with what was suggested in another forum topic here to enable/disable the slew rate on digital pins of a Teensy 3.6 and I can easily do this in a sketch by...
  6. Hi Paul / All, I've been playing around with...

    Hi Paul / All,

    I've been playing around with what was suggested above to enable/disable the slew rate on digital pins of a Teensy 3.6. I can easily do this in a sketch by simply changing the port...
  7. Replying to my own thread, as I found the cause...

    Replying to my own thread, as I found the cause of the issue I raised! The cipher mode used by AES encryption using CryptoAccel library appear to be Electronic Codebook (ECB) and the output...
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    Quick question, after playing around with the...

    Quick question, after playing around with the CryptoAccel library, I found that it utilizes the ECB cipher mode. This mode is known to have some security issues if repetitive text blocks are being...
  9. Compatibility of AES Encryption using CryptoAccel library on Teensy 3.6 with PC

    Hi, I would very much appreciate any help or guidance anyone can bring to bear on getting a better understanding of how Paul's CryptoAccel library works and how to use it for the purposes of...
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    Thanks very much for your prompt responses on...

    Thanks very much for your prompt responses on this matter. If I understand correctly, you're both saying that all USB serial communications to the Teensy 3.6 are in fact validated between source and...
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    Query Teensy 3.6 CRC on transmitted USB data

    Hi,
    Could someone please comment on whether or not the teensy usb driver in Win7/10 does a CRC check on the validity of data transmitted to/from a Teensy 3.6 via USB serial. I suspect it does not...
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    Hi, I had trouble with the above method of...

    Hi,
    I had trouble with the above method of detecting the presence of the SD card also so I reverted to the less desirable method of polling. However as I primarily use capacitive touch TFT's, I...
  13. Teensy 3.6 - Suggestions for an appropriate IC for optical isolation of usb 2.0 lines

    Hi all, I'm trying to build a small control system using Teensy 3.6 with TFT, alongside a number of other micro-controllers connected via UART's and I2C comms, and a number of peripheral motors, etc....
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    In addition to my message above, I should also...

    In addition to my message above, I should also mention that I am just looking to output a mono audio signal using the DAC0 channel on the Teensy 3.6 or Teensy 3.2, it that makes things any easier. I...
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    Hi Paul/Others, I'm aware that this is a...

    Hi Paul/Others,

    I'm aware that this is a relatively old thread but I'm also very curious about whether I could potentially alter your PJRC audio library to utilize Bill Greiman's current SdFat...
  16. Thanks Paul and Frank, Firstly, I just wanted...

    Thanks Paul and Frank,

    Firstly, I just wanted to say that while this is my first time posting here I've followed 100's of your discussions on forums over the past year/two since I got my first...
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    Hi, I just found this very useful thread,...

    Hi,

    I just found this very useful thread, could you please give a little further information as to what part/where in the SDFat library I can find the DAT3 configuration you've noted above, I'd...
  18. Is there any sd card detect pin for Teensy 3.6 builtin SD Card

    Hi,

    I cannot find any information for detecting the presence of an SD card for T3.6's built-in Sdio card slot. I'm aware this can be done with may of the spi card reader modules but I need the...
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