This tool is used from within the library editor to add to or edit
pins on a symbol.
When the mouse is left-clicked on a pin then that pin can be edited. Clicking on empty areas allows insertion of new pins. Note that a pin icon (drawn in the symbol area) shows the next pin location.
Pins are added as specified in the details box.
| Pin Name |
Consists of alphabetic or numeric
digits |
| Pin Num |
Consists of alphabetic or numeric digits |
| Side |
Side to draw the pin : top left
bottom right |
| Len |
Length of the pin : Long, Short, Point, Power |
Other controls
|
Spacing factor |
Spaces the pins by a set distance when "Add pin" is hit. |
|
Draw invert bar |
Draws a line over the top of pin name text. |
|
Increment Name digits |
If set increases or if unset decreases the last digits in the name when "Add pin is hit" |
|
Increment Pin Number |
If set increases or if unset decreases the last digits in the pin number when "Add pin is hit" |
Point pins are power supply pins that are not drawn on the
main schematic - they only appear circled within the library
editor.
This defines a point pin that is invisible on the normal schematic
but in the symbol editor is shown by a red circle and is used to create
neat schematics for multi part symbols
e.g. for a CMOS symbol 4001 that has 4 parts the power pins are defined
in the first part. The first diagram below shows the part as they
appear on a schematic and the second shows them within the library
editor.
This pin type must be used to define the power supply pins if
they are to be hidden as the netlister searches for this type of pin
when netlisting.
Note 'Power' pins must be used for power pins if point pins are
not used. i.e. the above symbol could be re-drawn as follows:
This button pulls up a dialog to make entering symbol pin data
easier. There are eight columns arranged as four pairs of text
names and pin number for left right top and bottom sides. Data
entered into these columns can be saved or loaded for later use.
When Ok is hit each pair of columns is examined and used to create pins
for the relevant side of the symbol (left right top or bottom).
Note that the combo box at the bottom can be used to specify the length
of pin to use for a side.
