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08-06-2019, 08:08 PM
Part-2:
Eagle provides a means for you to keep the schematic on a reasonable size scale per sheet through direct or indirect means.
In the library is a folder called FRAMES. These are the outlines and information blocks you see on drawings from companies with lots to keep track of
There are several different styles of frame to choose from, so when you begin the schematic entry, you first go to FRAMES and drop one in place. Then you enter the schematic within the frame and once it is as full as you need or can stand, open a new sheet, drop a frame and continue entering the circuit.
An alternate method to keep the sheet within a printable size is to draw your own frame on the NAMES layer, which makes the frame a grey line that won't be confused with nets.As you draw the line you will see the cursor x.y position in the top left corner of the window. You can make this simpler and quicker by setting the scale much larger than usual, say 1" and keep the bend function at the default of perpendicular. Draw the rectangle for the size of sheet of paper you want to print on, then switch the scale back to 0.1" to drop components and lay nets as usual.
REMEMBER that the scale for schematic entry must be 0.1" or Eagle won't be able to tie to the component pins.
Oddly, the PORTS are found in the FRAME folder as well. There are a few of these but you can also make your own connection devices. In my parts file, I have "wire links" that are a DEVICE comprised only of a SYMBOL, but you have to have it in the library as a DEVICE or Eagle cannot access it to drop onto the schematic. So, you go into the library, select SYMBOL and enter the name of the wire-link or portal, Eagle asks if you want to create new symbol named as you've entered, click yes, then draw what will appear on the schematic. A friend of mine simply draws a short piece of net on the NET layer, and adds the PIN at one end. I draw a 'T" and fix the pin to one end. Use the NAME function to name the pin "wire-A", for example. Then use the TEXT box to enter a letter "A" to drop on the NAME layer. You can change the scale to position this more nicely - just make sure the pin is on the 0.1" grid. You can make as many of these as you anticipate needing, or give them functional names as you see fit.
Eagle provides a means for you to keep the schematic on a reasonable size scale per sheet through direct or indirect means.
In the library is a folder called FRAMES. These are the outlines and information blocks you see on drawings from companies with lots to keep track of
There are several different styles of frame to choose from, so when you begin the schematic entry, you first go to FRAMES and drop one in place. Then you enter the schematic within the frame and once it is as full as you need or can stand, open a new sheet, drop a frame and continue entering the circuit.An alternate method to keep the sheet within a printable size is to draw your own frame on the NAMES layer, which makes the frame a grey line that won't be confused with nets.As you draw the line you will see the cursor x.y position in the top left corner of the window. You can make this simpler and quicker by setting the scale much larger than usual, say 1" and keep the bend function at the default of perpendicular. Draw the rectangle for the size of sheet of paper you want to print on, then switch the scale back to 0.1" to drop components and lay nets as usual.
REMEMBER that the scale for schematic entry must be 0.1" or Eagle won't be able to tie to the component pins.
Oddly, the PORTS are found in the FRAME folder as well. There are a few of these but you can also make your own connection devices. In my parts file, I have "wire links" that are a DEVICE comprised only of a SYMBOL, but you have to have it in the library as a DEVICE or Eagle cannot access it to drop onto the schematic. So, you go into the library, select SYMBOL and enter the name of the wire-link or portal, Eagle asks if you want to create new symbol named as you've entered, click yes, then draw what will appear on the schematic. A friend of mine simply draws a short piece of net on the NET layer, and adds the PIN at one end. I draw a 'T" and fix the pin to one end. Use the NAME function to name the pin "wire-A", for example. Then use the TEXT box to enter a letter "A" to drop on the NAME layer. You can change the scale to position this more nicely - just make sure the pin is on the 0.1" grid. You can make as many of these as you anticipate needing, or give them functional names as you see fit.
