A
Ariel Cornejo
Hello...
I am trying to use a "complex hierarchy" to avoid drawing
the same circuit 16 times (namely, a card-edge connector
and some glue).
To be specific, every four slots share one 4066 and one 7408,
so I have four almost-identical pages in separate folders, so
that sheet Slot-A has U1, U2A and U3A, Slot-B has U1, U2B and
U3B, and so on.
Then another sheet is meant to have 16 hierarchicals blocks, each
implemented successively as Slot-A,Slot-B,Slot-C,Slot-D,Slot-A...
wired together with buses and wires.
Using just one such block works fine, but as soon as I add Slot-B
I get DRC errors about "same pin connected to two nets" (MNL0031).
On the other hand, the OrCAD docs point out that parts with attached
schematics are easier to reuse. Is this what I should be using for
my blocks?
BTW, where is the reference for these MNLxxxx errors?
Thanks in advance...
- ariel
I am trying to use a "complex hierarchy" to avoid drawing
the same circuit 16 times (namely, a card-edge connector
and some glue).
To be specific, every four slots share one 4066 and one 7408,
so I have four almost-identical pages in separate folders, so
that sheet Slot-A has U1, U2A and U3A, Slot-B has U1, U2B and
U3B, and so on.
Then another sheet is meant to have 16 hierarchicals blocks, each
implemented successively as Slot-A,Slot-B,Slot-C,Slot-D,Slot-A...
wired together with buses and wires.
Using just one such block works fine, but as soon as I add Slot-B
I get DRC errors about "same pin connected to two nets" (MNL0031).
On the other hand, the OrCAD docs point out that parts with attached
schematics are easier to reuse. Is this what I should be using for
my blocks?
BTW, where is the reference for these MNLxxxx errors?
Thanks in advance...
- ariel
