This page has no translation to 中文 yet. The original English version is below. If you’d like to help, great! See how to translate a documentation page in the contribution guide.
Note
This is a web-version of a tutorial chapter embedded right into the XOD IDE.
To get a better learning experience we recommend to install the
desktop IDE or start the
browser-based IDE, and you’ll see the same tutorial there.
Pulses
In previous lessons, we told that the clock node ticks. To be more precise, the node outputs pulses.
This data type is very different from all the others like numbers and booleans. Values in the XOD are transferred to the links continuously, even if they don’t change. They are like voltage. The pulse data type is different. Imagine something like a flash. It’s basically a message to trigger something else. It does not transmit any data. Howerver, it is useful when you need to convey that an event has occurred or tell something else to work.
And of course, XOD offers a tweak-pulse node to send pulses manually during simulation.
Exercice #
Let’s play with pulses using tweak-pulse.
- Run the simulation.
- Select the
tweak-pulsenode. - Press the “pulse” button in the Inspector; the counter will reset back to 0.
- Replace the
clocknode with an anothertweak-pulseand restart the simulation. - Increment the counter by manually sending pulses to
INCpin.