External Trigger for the Word Generator

[MHawn]

Hi all,

This may be an easy question as I'm new to Multisim, however I am having trouble setting the word generator to respond to an external trigger.  I'm setting the word generator to up counter, selecting external for the trigger source and connecting a 10 kHz clock to the T pin of the generator.  While I expect to see pulses occuring with my trigger, instead I am seeing it still sending data at whatever the internal frequency is regardless of my trigger.

I've tried the digital clock and the pulse voltage sources to no avail.

I'm using NI Multisim 12.0 Student Edition version 12.0.0 (12.0.592).

Am I doing something wrong, or is this a bug?

[Tayyab_R · Accepted solution]

Hi MHawn,

The word generator can have an external trigger but the clock rate is still set internally. The speed with which the pulses are generated are based on the internal clock rate. The external trigger will only control the triggering of the pulse. As a test, try to make the clock rate and the trigger clock the same. Notice that it is changing on the required time.

Hope this helps.

[MHawn]

Ah, that clarifies a lot.  Thank you!