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Altera_Forum's avatar
Altera_Forum
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18 years ago

Help with Bi-directional Bus

I need some help in creating a bi-directional bus in a .bdf that links to a TI DSP board. I have logic that creates data that is read by the DSP and I write data to the FPGA from the DSP using the TI...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Avatar: Thanks for the feedback. Yes, I was tying it high. I was confused by the Altera literature saying that there are no tri-states internally so for some reason I thought it would not matter (or maybe I was just confused, as always :D ). I also had a glitch up stream that was causing some trouble so that I was getting errors and controlling the tri-state didn't seem to work. Thanks for straightening me out!

Randall: I appreciate the .bdf! I will try the alt_iobuf in place of the TRI primitive.

Thanks for the responses!!:) :)