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Altera_Forum
Honored Contributor
Honored ContributorSignalTap II issue
Hello, Here is debounce state machine: module debounce_explicit(input clk, reset, sw, output reg db_level, db_tick); //symbolic state declaration
localparam
zero = 2'b...
Altera_ForumHonored Contributor
Honored ContributorI dont think that you need any input constrains for external switch since it is asynchronous signal. Usually for such signals i use set_false_path command:
set_false_path -from [get_ports SW] --- Quote Start --- crashes" for some unexplained reasons. --- Quote End --- One reason I can think about is - metastability because asynchronous SW signal. I always try to avoid using such asynchronous signals directly without any synchronization logic.
