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LTspice model for fpga gpio pins

Discussion in 'General Electronics Discussion' started by graemeian, Apr 11, 2017.

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  1. graemeian


    Oct 2, 2014
    I am using a demo board that utilizes the cyclone V chip. It has an FPGA with 3.3v GPIO pins. I am using LTspice and I have numerous components in my circuit. Instead of using the perfect 3.3v square wave to drive my components, I would like to use something that mimics the GPIO of the cyclone V. When I look for LTspice models, I only find HSPICE modelling. I do not know if it is available in my price range (free) and I would like to stick with LTspice if possible as I already have a screen full of components and I have downloaded numerous components for LTspice. . I only want to mimic a GPIO pin and would imagine the text file would be simple. A source for a GPIO pin behavior would be very much appreciated.
    Thank you.
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