Invalid IP configurations are generated

[reillymck]

Invalid IP configurations are generated

[reillymck]

It would be nice if there was a try catch in the core.tcl that triggered when place_design; route_design; failed. The except clause would prevent a dcp file from being written for that design (right now a dcp file is written for failed designs, but nothing marks them as failed).
Then, it would be nice if a file descriptor was opened at the beginning of design generation that could be used to communicate between Python and TCL when designs fail. Python would wait for output on the file descriptor indicating the failure or success of a design, and then proceed accordingly (redo the randomize properties for failed designs and send the new design to tcl to attempt to regenerate, or move on to the next design). The core.tcl would be edited to write success/failure messages to the file handle for each design.