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Altera_Forum
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10 years ago

ALTDDIO_OUT error 15874

Hi, I don`t know if this is the right forum for creating this thread. I have a problem when I use the ALTDDIO_OUT IP component in Quartus II, for a Cyclone V device. I want to use the same outp...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

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the ddr output is meant for external output only (not inside fpga). you can mux your high/low inputs into ddr instead

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The problem is that I have to use the same output pin for two signals. I mean, I want to mux the output, not the input. If I mux high/low I will have the same problem in the output pin. Or maybe I have not understood your proposal.