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How do you calculate clock period?
The clock period or cycle time, Tc, is the time between rising edges of a repetitive clock signal. Its reciprocal, fc = 1/Tc, is the clock frequency. All else being the same, increasing the clock frequency increases the work that a digital system can accomplish per unit time.
Why clock pulse is needed in a flip flop?
Having a brief moment during which neither flip flop is enabled means that the output of a flip flop may be safely fed back to its input via combinatorial logic. A change to the output on one clock cycle may cause the input to change, but that input change won’t have any effect until the next clock cycle.
How is the minimum clock period calculated?
The minimum clock period is 1.5+3+1.5+0.5=6.5 ns. 2. There are no hold time violations because the minimum flip flop propagation delay is larger than the hold time plus the skew. The maximum delay for the next state logic is 5 ns.
How is the pulse width of a clock controlled?
A clock is divided down by a prescaler and applied to a period counter. The duration of the period counter is set with a modulus or period register. The output of the period counter goes to multiple “channels” of pulse width logic. The width of the pulse from each channel is independently controlled since each channel has a separate Width register.
How can a signal trigger a pulse just for one clock period?
My question here is, how can a signal (flag in this case) trigger a pulse just for one clk period? what i have now makes almost a pulse during a clock period, but i does it twice, because the flag has not become 0 yet. ive tried many ways and now i have this:
How to specify sample time for pulse generator?
If you specify sample-based, you must specify the block’s sample time in seconds, using the Sample Timeparameter, then specify the block’s phase delay and period as integer multiples of the sample time. For example, suppose that you specify a sample time of 0.5 second. And suppose you want the pulse to repeat every two seconds.
What is the timing resolution of a PWM clock?
I can use a prescaler setting of divide by 8 and a period counter modulus of 60,000 for a PWM period of 20 milliseconds. Now we know the timing resolution for the output pulse. The timing resolution is the period of the 3 MHz clock or 0.333 microseconds.