Brian Roberts, Dawn VME Products
The backplane is the backbone of a VPX system, contoured to the final system configuration. It would be extremely valuable for designers to have a way to evaluate the top options in a working configuration before the final backplane was developed. The following discussion presents an interesting case for using backplane overlays to effectively evaluate the best options.
Understanding the power requirements of an individual embedded computing card is an important part of overall systems design. What the card will require from the system power supply and, ideally, how those requirements will vary based on workload, is information that factors into system design decisions. Obviously there must always be sufficient power for all system components, across all required voltages and individual power rails. Determining the power needs is the first step.
Advantages in SWaP, thermal management, and connectivity mean that OpenVPX’s resultant rapid deployment is outrunning VME.