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Thread: Teensy 3.2 + WIZ820io CAN-bus logger

  1. #1

    Teensy 3.2 + WIZ820io CAN-bus logger

    Hi,

    I am working on a CAN bus logger using a teensy 3.2 and the WIZ820io board. From the latter I only use the sd-card holder and do not have the ethernet module installed.
    After soldering all my stuff together I noticed that the WIZ820io board seems to use pin 4 for the chip select of the sd-card. Since that pin is also used for CAN RX am I right that I have to detach the connection between the teensy and the board and reroute the CS to another pin (physically and logically) or is there a possibility to use different pins for CAN reception?
    Thanks for your help.
    Felix

  2. #2
    Member
    Join Date
    May 2015
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    UK
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    I'm fairly sure that the CAN RX & TX are fixed resources on the design and therefore, unfortunately, there are no alternatives.
    There are no alternatives listed on the teensy card either ( the one that ships with the device ).
    Sorry :-/

  3. #3
    Quote Originally Posted by Twinscroll View Post
    I'm fairly sure that the CAN RX & TX are fixed resources on the design and therefore, unfortunately, there are no alternatives.
    There are no alternatives listed on the teensy card either ( the one that ships with the device ).
    Sorry :-/
    That's what I thought. Looks like I need to get the Dremel out to cut the pin.
    Thanks for confirmation.

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