This is extremely useful as a design aid during board layout. The 3D Visualisation Tool (3D Viewer) in Proteus provides a way to extrude a layout and view the board as it would appear in real life. You can also use field codes to bring in design information such as Author or Revision Number and the internal clipboard makes it easy to copy and paste pictures from other Proteus modules into Project Notes. For example, you can link text to real parts on the schematic or layout so that clicking on the link will navigate to the part in your design or PCB. In keeping with the other modules in Proteus, you can use Project Notes to interact with the rest of the system. The template system in Project Notes allows you to create, save and re-use formatted content and we have included some example templates for things like Engineering Change Orders, PCB Specifications and Lab Exercises that might prove useful. This may be as simple as scribbling a TBD list at the end of the working day or as formal as an approved revision history for the project. It is a free-form editor so you can add whatever you like in whatever style you want. Project Notes is an application module in Proteus for adding documentation or written content to the project. You can also adjust either an absolute or a relative tolerance for the length match according to the timing budget for your interface.įor large BGAs the internal signal distance can be added to the component as a CSV file and a length match report can be generated at any time. In Proteus, this is all handled via a single dialogue form where the topology of the serpentine can be controlled. Depending on the signal rise time, the frequency of the signal, the requirement for via sites on the PCB and many other factors the PCB designer may need to adjust or constrain serpentine height and width. Much of the difficulty with length matching lies in the arrangement of the extra trace used to lengthen the shorter routes (often called the serpentine).

This includes the ability have track segments in multiple matchgroups which is needed for routing topologies like the DDR3 fly-by configuration. Proteus includes support for automatic length matching of tracks via a simple select and match user interface. Length matching of tracks is an essential step in ensuring correct timing at the signal receiver for high speed transmissions.

Proteus 8 pcb layout