Engineering

If you want to alter anything on the schematic with a User Language Program you will need to output to a command line script file.   The most common thing to do is write it to the same directory that the ULP is in.  To do that you are going Read more…

Script functions required Need the script syntax to change a part value.  The command line to issue to change a part value is: value refdes value.  And example would be to change R5's value to 100 you would issue the command:  value r5 100 Need to add attribute fields to Read more…

This program demonstrates how you access the Schematic object with an Eagle PCB User Language Program – ULP. dlgMessageBox("Do you want to count the parts?","Yes","No","Maybe");                       //opens a dialog box: no matter what you answer it will count the parts. Read more…

I have used a ULP ( User Language Program ) called Smash.ulp to smash all the parts on the schematic many times.  ULP's by themselves are said to be unable to modify a schematic.  Smash.ulp generates a script file named Smash.scr.  Inside of Smash.scr you will see something like the following: Read more…

I like simple examples for purposes of learning a programming language.  Something that does not clutter everything up leaving me with a million doubts.  The following Eagle ULP tutorial file writes an ASCII string to two different files.  The first file write demonstrate the default location of file writing and the second shows Read more…

This ULP ( User Language Program ) opens a file dialog automatically using the schematic name to form a file name in the dialog opened.  If you want you can change the name in the open dialog box.  It is a fairly simple program without all the extra stuff you Read more…