Component Placement Side

you should be able to do this through Rooms.  I don't know if there's a better way to do it, but check out the documentation on the Room property, and then add a room to just the A-side or B-side of the board.

Hello,

You can use the ALT_SYMBOLS property to drive the placement side.  The ALT_SYMBOLS property will allow you to define different alternate symbols for placement on the design.  You can also specify different component symbol by layer.  If you just define a symbol from the BOTTOM layer and apply the ALT_SYMBOL_HARD Property as well it will automatically mirror to the Bottom side during placement.

Here is an example of the how it could be done in a Device File

PACKAGEPROP ALT_SYMBOLS '(BOTTOM:0603RF_WV_12D)'
PACKAGEPROP ALT_SYMBOLS_HARD

This states that on the BOTTOM Layer the component symbol "603RF_WV_12D" is used but it doesn't specify a symbol for the TOP Layer. NOTE: The ALT_SYMBOLS_HARD Property is required to force it to the values defined by the ALT_SYMBOLS.

Unfortunately, this needs to be defined in the Schematic and driven during import logic and cannot be added directly into Allegro.

Not sure of the schematic package you are using so please consult the documentation to determine how it should be applied on the schematic side.  Just search for ALT_SYMBOLS in the Allegro documentation for details.

Hope this helps,

Mike Catrambone

Thank you for your reply.

Its a little bothersome to set. haha

I hope cadence can simplify the procedure, just by adding the option in the Constraint manager Component section.

Regards,

Eric