Donwreving libraries (psm, bsm, osm, fsm, ssm, pad) entities IS supported. Downreving board files to an earlier release is NOT supported.
To downrev a library part or parts you open a shell/DOS window in the directory where the part(s) are stored and type
downrev_library
Help on the downrev_library command:
downrev_library
Command line arguments for downrev_library
This provides support to downrev library parts from a
16.x to 15.x release. It supports the following database
types; psm, bsm, osm, fsm, ssm, pad. It does NOT support boards
(brd) or drawings (dra).
It requires that the user have a license to run
Allegro PCB Librarian Expert (PX3500).
downrev_library <input design(s)> [-outfile <output design>]
Arguments:
<input design(s)>
Wildcards can be used to process multiple databases
[<output design>]
Optional output design name. If not present will overwrite
input file. Ignored if more then 1 input file present then
this option is ignored.
Standard command line arguments:
[-help]
- This information
[-version]
- Program prints its version and exits
[-versionLong]
- Program prints its long version (if available) and exits
Legend:
[...] - optional argument
<...> - provide indicated data. Typically a filename.
| - provide one of these arguments. Example -j|-o
... - required argument
-$ - most Allegro programs accept this argument which means
do not prompt for missing command line arguments