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Altera_Forum
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16 years ago

How to program an I/O as a open drain on MAXII Micro Kit by using Quartus II?

Hi, Are there anyone knows how to program an I/O as a open drain on MAXII Micro Kit by using Quartus II? I saw the MAXII device handbook. The MAXII supports a function of open drain for th...
Altera_Forum's avatar
Altera_Forum
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16 years ago

I've seen a post which uses a command as below in QSF.

set_instance_assignment -name AUTO_OPEN_DRAIN_PINS ON -to xxxxx

I've tried. I, however, couldn't find any difference on the Quartus II.

How can I know if the pins have been programmed as a open drain

output? Thanks.

Peter Chang