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  1. M

    FlexCAN_T4 - FlexCAN for Teensy 4

    Yes, the problem was Vdd=3.3V on MCP2551. With Vdd=5V and a voltage divider on Rx it worked
  2. M

    FlexCAN_T4 - FlexCAN for Teensy 4

    Hi, I am trying to use Teensy 4.1 with MCP2551 powered by Vdd=3.3V, but I can't get it to send/read data on the CAN bus. Is the problem the Vdd voltage, must it be 5V? Can I just replace MCP2551 with SN65HVD233SJD running at Vdd=3.3V? Or is it the code that is missing something? Thank you. //...
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