PulseTrain2 component never stops pulsing

Tech Note: TN0059
Product: RPvdsEx
Version: All
Date Added: 2002-12-05


When the nPulse parameter of a PulseTrain2 component is set to a lower value than it previously had, the component will pulse forever, because its internal counter keeps counting from the original value.


Set the Enable line of the PulseTrain2 component to 0 before changing nPulse, so that pulsing will be disabled. Trigger the Reset line of the component to reset the internal counter to zero before re-enabling pulsing.


Upgrade to the latest version of TDT drivers to use the PulseTrain3 component, which does not have this issue.