Forum Discussion
Altera_Forum
Honored Contributor
19 years agoOpen drain pin assignment
Does anyone know how to make an output pin open drain? I made an open drain assignment to an output pin in the assignment editor, but Quartus ignores it.
Altera_Forum
Honored Contributor
19 years agoand we must use the open drain primitive for each pin ?
module opndrn (in, out); input in; output out; bufif0 (out, in, in); endmodule