> I've talked about this before, and this is probably the weirdest
> part of the new furnace controller, so I'm open for input.
Second try. Still no optos, but used the 2.5V idea to bias the first
stage MOSFETS, so that a "floating" output makes Vgs zero for both
MOSFETS, and an active signal dr
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It is a shortcoming of the fpga code generator. Your code is probably
synthesizing correctly, but the fpga target (at least for the part
family you are using) does not have the code generator support yet.
That is what the message is saying.
Mark All