"disable" or "comment out" components

Gary Gofstein schrieb:

It would be nice if not every symbol had to have a package associated

with it. schematics are used to document more than just a board layout.

It's no problem to do exactly this.

However, as soon as a symbol is connected to a package (and its pads),

the device must of course be present in the board, too. If it weren't,

you would surely complain about missing annotation...

If you want additional documentation in the schematic, just draw it

there - but don't use devices with packages for that.

As I said, it's often asked for, seldom provided. For a hierarchy

deficient tool like EAGLE, it's practically a necessity (IMNSHO).

That's nonsense (IMANSHO).

EAGLE lacks support of hierarchical design, but that's not related to

the issue discussed here. Hierarchical design applies to the schematic,

to make it more structured and readable. The board, however, must always

contain the /complete/ circuit, and you must of course be free to place

every part wherever you want.

---

To the OP: For grouping the parts of a circuit section in the board

before starting exact placement and routing, it is very helpful to know

the parts names (make a printout of the schematic if you don't use dual

screens) and pick the parts by their names. Just activate the MOVE

command and then enter the part names directly by keyboard. After having

placed a part, you can just enter the next part name. This makes first

placement very fast and comfortable.

Tilmann

Gary Gofstein schrieb:

It would be nice if not every symbol had to have a package associated

with it. schematics are used to document more than just a board layout.

It's no problem to do exactly this.

However, as soon as a symbol is connected to a package (and its pads),

the device must of course be present in the board, too. If it weren't,

you would surely complain about missing annotation...

If you want additional documentation in the schematic, just draw it

there - but don't use devices with packages for that.

As I said, it's often asked for, seldom provided. For a hierarchy

deficient tool like EAGLE, it's practically a necessity (IMNSHO).

That's nonsense (IMANSHO).

EAGLE lacks support of hierarchical design, but that's not related to

the issue discussed here. Hierarchical design applies to the schematic,

to make it more structured and readable. The board, however, must always

contain the /complete/ circuit, and you must of course be free to place

every part wherever you want.

---

To the OP: For grouping the parts of a circuit section in the board

before starting exact placement and routing, it is very helpful to know

the parts names (make a printout of the schematic if you don't use dual

screens) and pick the parts by their names. Just activate the MOVE

command and then enter the part names directly by keyboard. After having

placed a part, you can just enter the next part name. This makes first

placement very fast and comfortable.

Tilmann