Hi all,
I am beginer of Allegro PCB editor, and have spent around one week's full time on it. Here are some question which have confused me. I would appreciate if you can help. The questions are based on the PCB figure in the attachment.
The 2-pin header footprint is made by myself. The procedure is following the standard one: padstack to define pads --> package symbol to define footprint. Here are questions:
(1) After I placed the 'Package Boundary' when designed the footprint, the footprint is covered by a net full of dots, as you can see in the figure. This looks really uncomfortable! Any one knows how to remove the dots in it? I have tried through 'Color/Visibility -- Stipple Patterns', and seems no help.
(2) As you can see, the font (size, line width) of pin number, device reference (H, HEADER) are the same, which also looks ugly. Is there any method to modify these fonts individually?
(3) There is a via above the footprint. It is just a 'Via' in default library without any further information. What I want to ask is: is there any method to define a via when I am layout, as is supported by all other tools? I know I can select a PRE-defined Via by padstack when layout, but is there any method to define a via just in PCB editor interface? PRE-define EVERY via I will use is terribly inconvenient, because in some complex PCB, there could be tens,even hundreds, of vias with different size. PRE-define them one by one in padstack is terrible to manage.
(4) In the Color/Visibility menu, there are tens of layer listed. However, most tutorials only talks about few of them, and left most of other layer unclear to me. Is there any document talking about this with more information?
I have went through the whole Allegro Layout Tutorial on the software, and I didn't get most of the information I want. Why it is called tutorial? It is not, definitely...
Thanks you all ~~