The final character in the RT1062 part number specifies the Silicon Rev. It is either A for silicon rev A0, or B for silicon rev A1. What is the difference between these two revisions? Are they hardware and source code compatible?
For RT1060/RT1064 revA1, we fixed a USB isochronous errata that only impacts a very limited number of use cases. Primarily in audio application. The errata shows up when the RT is used in USB isochronous mode, plugged into a hub, with multiple devices plugged into the hub and the devices have the same endpoint number. Very limited use case.
Both revisions are software and hardware compatible with each other.