5.4 Drawing and Editing Parameters

Delays, Setups, Holds, and Samples parameters can be moved vertically on the screen. Also the edge attachments can be changed

Move to a parameter to a different edge:

•Click on the parameter to select it. A selected parameter is surrounded by a rectangle with a solid handle box one or both ends.

•Drag one of the black handles to a new edge. The handle does not move but a green edge highlighter will jump to edge closest to the mouse. To abort the selection of a new edge, press the <ESC> key.

move_parm_end_1

•Note: If the entire parameter is changing its vertical position then you clicked on the middle of the parameter instead of a handle box.

move_parm_end_2

Warning: Moving the start and end positions of delays can radically change the way your timing diagrams look, because delays force transitions to be a specific distance apart. You can use the Edit > Undo menu option to return the timing diagram back to its original state.

Repeat Parameters across the diagram:

•Add a delay, setup, or hold parameter to the diagram.
•Double click on the parameter to open the Properties dialog and press the Repeat button.
•The parameter will be repeated between like edges of the two signals. In the example the delay is added to the low to low edge.

Sharing Parameter Data:

•The editor assumes that a parameters between the same signals and the same types of edge pairs represent the same timing. Therefore, the parameters will share the same name and timing values (the same data line in the Parameter Window).

•Also naming a new parameter after an existing one will cause a sharing of parameter data.

smart_parm_share

•To undo an automatic sharing, just rename the parameter in the diagram window to a new name.

•To turnoff parameter sharing globally, choose the Options > General Preferences menu to open a dialog, and uncheck the Smart parameter sharing box.

•Also, by default the program will display a warning message when you changed the name of a parameter to an existing parameter. Once you get use to the feature you can turn off this warning, by choosing the Options > General Preferences menu to open a dialog, and unchecking the Warn if Duplicate Parameter Name box.