Protel Class

1. Protel Class 11/21/06

2. How to open a new design New Design creates a design data base.

3. This is the form that will let you name your data base. Press Browse to select the appropriate folder. Create a new folder if desired.

4. For this example we will name the folder and data base ref_buffer.

5. Explorer shows the structure of your data base. Click on documents. This is where we will keep our schematic and pcb documents.

6. Right click on documents. Select new.

7. Select schematic document.

8. For this example, we will do a multi-page schematic. Name the schematic “ref_master.sch”. Double click on the icon.

9. You are now in the schematic sheet. If you are doing a one page schematic you can start drawing your schematic now. For multi-page schematics select “place \ sheet symbol”.

10. Place two sheet symbols for a two page schematic. Change the names to some appropriate name.

11. Select “create sheet from symbol” and click on each symbol. This will create two schematic sheets.

12. Press yes to reverse input /output directions. This is a feature that I don’t use and so it doesn’t really matter what I choose.

13. How to open Edit Schmatic Now we have two schematic sheet that are linked together. You can begin to enter your schmatic.

14. Press design options to change the sheet size.

15. Press design options to change the sheet size.

16. The best way to use Protel is to keep one hand on the keyboard and the other on the mouse. Shortcuts will speed up you work dramatically. Short Cuts Zoom in – page up Zoom out – page down Rotate part – space bar Exit current mode -- escape Place part – pp Place wire – pw Delete part -- ed Deselect all – eea Undo – eu Drag section -- emr

17. “PP” to place part. Press browse to select the device.

18. “Add/Remove” will let you add more libraries to your list. Select the library the you want to look through. Protel has several librarys. You can see a preview of the part by scrolling through the list.

19. When you press the add and remove the “Change Library File List” box pops up.

20. 1 • Find the library you want to add. You may need to change folders. • Select the file. • Press “Add” • Press “ok” 2 3 4

21. After placing a part, you may want to rotate it. Click on the part. Keep the mouse key pressed (the part will move in this mode) and rotate using the space bar.

22. Use “PW” to place a wire. Press the escape key once to end wire. Press the escape key twice to get out of wiring mode.

23. Use “PO” to place a power port. A power port is a connection to a common power supply or ground. Instead of using the shortcut “PO”, you can use the pull down menu “Place\Power Port”. A power port is a connection to a common power supply or ground.

24. Hit the TAB key to edit the properties of the power port. Change the Style and Net name as needed. Note that pressing the TAB key can be used to edit prosperities when placing anything.

25. Highlight Section To select a section of the schematic. Click and Drag mouse around section (create a box as shown).

26. Highlight Section Continued • The selected section will be highlighted in yellow as shown. • Press “control Delete” to delete this section. • Press “EMR” (i.e. edit\move\drag selection”) to drag this section. Note that wires stay connected in this mode. • Click on section with mouse and move to move section. Note that wires will disconnect in this mode. • Press “control C” and click on section to copy. Press “control V” to paste. • Press “control X” and click on section to cut. Press “control V” to past. • Press “EEA” (i.e. “Edit\deselect\all”) to deselect section.

27. Place a port to connect a node to a different page or to a different location on a page. You can connect to either end of the port.

28. ERC checks the schematic to see if there are any errors. Select ERC options and press ok.

29. This shows a typical ERC report with errors. In this case we have duplicate reference designators.

30. After running the DRC you can see the errors in the schematic are marked with a red x. For this example it is the reference designators.

31. To fix the reference designator problem we can go into the Annotate option.Z Set the “annotate options” to “Reset Designators” and press “Ok”. This will reset the designators to “?”. Be careful to keep “current sheet only” option off if you want all sheets to be reset.

32. Set the “annotate options” to “? Parts” and press “Ok”. This will replace all “?” with a number.

33. Run ERC again. For this example we still have some errors. In this case the sheet numbers need to be set.

34. Right click on the schematic you want to add an “sheet number” to and select “document options”.

35. Select “Organization” and enter the sheet number, title, revision, and etc.

36. Select “Sheet Options” and you can change the size, grid, and etc.

37. For this example we run ERC again. This time there are now errors. Now we can make our PCB.

38. From documents: select “new” to create our PCB document.

39. Select “PCB document”. Give the document the appropriate name.

40. Select “Design\Update PCB” to update the PCB.

41. If you have more then one PCB in your design the program will ask you to select the PCB.

42. For multi-page schematics, it is important to set “connectivity to “Net Labels and Ports Global”. This will connect ports from page to page. Select these component options. Turn off the “Classes” options. For complex / advanced boards these options may be useful. Press “Preview Changes” after you have selected the appropriate options.

43. Press “Only Show errors” to see the errors. Press “Report” to see a more detailed error report.

44. The “Error report” gives a more descriptive explanation of the errors. In this case many of the footprints can not be found. We need to link our footprint librarys in.

45. 1. Click on the PCB document to enter the PCB. 2. Press the “Browse PCB” tab to link in the appropriate libraries.

46. Select the “libraries” under browse. Find the library you want to add. Press “add” then “ok”.

47. For this example “Update Design” now shows no errors. Press execute to continue.

48. Now the components are available in the PCB document. Note that lines (called rubber bands) connect the nets as given in the schmatic.

49. Use the “interactively rout connections” tool to draw the board outline The board outline must be on the keep out layer.

50. Place components in board for best routing (this example has not been optimized).