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Altera_Forum
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10 years ago

Securely start a State-Machine with pulses or edges

Hi there, this problem occures in my work from time to time: I want to start a State-Machine (Transition from Idle-State S000 to State S010) either with a single one-clock-pulse or on the edg...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

start_in goes into core1 then some logic(I presume) then core2. This is not safe. For core1 it is not synchronised by two stage. For core2 it is not either as the chain of two registers should be clean of any logic.

start_in should go through two registers then be used in any core(core1 or core2)