Associated with the window project manager we have the project type file (*.OPJ).This ASCII file keeps the logical connection to a “design” (*.DSN) type file and other associated resources. The design file,receivin the same name as the project,may contain several  schematic folders which may contain several schematic pages. A design file contains the so called  Design Cache, a local library containing copies of all the symbols  used in pages with design schematics.We may so use design file son different computers though the libraries are not up-to-date.

 

When starting a new project ,the design file contains only one schematic page called  PAGE1 and in Design Cache there is a single element Title Block the drawing pointer associated to the page.

 

• Creating a new project:

When the New Project window appears one introduces the project’s name.Then the type of the project is chosen. No electric scheme simulation being required one can choose  PC Board Wizard or  Schematic , the differences in project’s structure being unsignificant  between the two options. After writing the working director,and confirmed with OK the dialogue from the newly opened   windows  cancelling other options,of simulation or adding of libraries. At the end , the project manager window shows up as in figure 1.2. After creating the project the names of the  project or design files might be changed or folder or schematic pages naming.

Editing begins by double clicking  the schematic page we wish or by page selection and with the right mouse button  opening pop-up menu and selecting Edit Page. The schematic editor window containing a frame and the respective pointer is opened .

 

Fig. 3 Work area, a placed part and pop-down menu related to the current item