Well, there is this standard procedure.
Let me explain with an example. Suppose I have 2 circuits: a
counter ( in any form:
counter.v/counter.vhd/counter.bdf) & a
comparator (again in any form
comparator.v/comparator.vhd/comparator.bdf).
Now I wish to supply the output of the counter as a ramp input to the comparator, in order to generate a PWM.
procedure:
1) Open the counter file in Quartus II.
2) Go to
file -> create/update -> create symbol files for current file ( this command will compile your counter circuit & save a symbol file called
counter.bsf in your project directory)
3) Do the same thing with the comparator file.
4) Now, create a new BDF file, call it
pwm_generation.bdf 5) Double-click anywhere inside to bring-up the
symbol window. There click the '+' sign before '
project' where you will find your counter & comparator.
6) Just bring them together on this new block diagram file, and do the required input-to-output wiring ! That's it.
( You may also edit & customize the individual counter.bsf & comparator.bsf symbols to suit your connection routing )
