altera Flex10k + I2C

Discussion in 'VHDL' started by Marc, Mar 16, 2007.

  1. Marc

    Marc Guest

    hi,
    I implemented an I2C-bus part in my Flex10k where the SDA line is bidir and
    the SCL is input (slave mode). Clock input is 24MHz (not SCL).
    What I see on the SDA pin of the device is that the signal there is
    oscillating with frequence of 1.3Hz.
    It doesn't matter when this line is floating or connected to a I2C
    transmitter in master mode by use of a pull-up resistor.
    The transmitter is OK I checked.

    Any help?

    Marc
     
    Marc, Mar 16, 2007
    #1
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