Clock Required?

[Davidg]

Hi

I am new to this game, so this might be a dumb question. Is a clock
signal always required? I have been usin quartus and I have not got a
'clock' in my code but it says it will asume that th RD signal is a
clock.

Thanks

 

[glen herrmannsfeldt]

Davidg wrote:

I am new to this game, so this might be a dumb question. Is a clock
signal always required? I have been usin quartus and I have not got a
'clock' in my code but it says it will asume that th RD signal is a
clock.

If you don't use any FF's, a clock isn't needed.

If you do, it will likely assign the signal that goes to the clock
input of the most FF's as a 'clock'. There is no requirement on the
signal itself, but there is a convenient path from certain pins
to the FF clk inputs.

-- glen