We just purchased the full version of Quartus II (version 6.0) because it has the ability to perform incremental recompiles after small changes, saving on compile time. I understand the design flow as described in the manual, but so far I've been unable to get incremental recompiles to work right. (I'm using a command line interface rather than the GUI, in case that makes a difference.)
Running quartus_map, I get this message.
Info: Partition "s_led" is synthesized because no netlist is available for reuse
That makes sense the first time around, but presumably a post-synthesis or post-fit netlist would be saved and subsequent compiles could use it.
Running quartus_cdb --merge=on, I get this:
Warning: Previously generated Fitter netlist for partition "s_led" does not exist -- trying to use previously generated Synthesis netlist
This might indicate a modicum of success, i.e. that at least the post-synthesis netlist *might* be used, but I want to use the post-fit netlist for more time savings.
Running quartus_fit, I get this:
Warning: Ignored partition netlist type assignment changes Info: Partition "s_led" is using previous netlist type "Source File" and not current setting of "Post-Fit"
I suspect that this warning message is tied in with the fact that no post-fit netlist appears to be being saved for next time.
Does anyone know what might be going on?
Many thanks... David