So much buzz from CES 2017 this year with the big hitters (IMO) being autonomous cars, IoT devices for the home, specifically security, wearables, virtual reality (VR), 8K TV’s and of course USB everything. Within the space of USB, Type-C was the main theme with cables, chargers, hubs and more abundant from a varied number of vendors.
We have been seeing a lot of interest in all things USB Type-C from basic USB 2.0 Type-C support all the way to the higher end USB Type-C Alt Mode with DisplayPort. Actually, the latter is getting the most focus as it’s far more complex than traditional standalone USB operation and it’s a highly desirable use mode. Many of the questions are asking for our recommendation as to how to handle the high power, high voltage power delivery and Type-C Port Controller hardware. This is a complex HW partitioning, SW partitioning and system architecture question.
Software developers constantly face the challenge of integrating more features into their designs, with fewer resources and shorter schedule for fast time-to-market products requiring USB interfaces. Developers programming in Linux have an additional challenge in that the Linux kernel mainline is officially released as a new version approximately every 2 to 3 months. Keeping up with the version changes and using them for a non-mainline kernel can waste weeks or months of development.
Posted in USB |
This week VESA announced the availability of the Early Certification Program for USB Type-C Devices Using DisplayPort Alt Mode.
Back in the 20th century, my first meeting meeting as USB PMM was with Mr. Ed Beeman in December 1999. In May, 2000, We demonstrated our USB 2.0 Device controller IP in an HP ScanJet scanner. One of the very first demonstrations in an actual product.
Posted in USB |
Relationships Between USB Specs, Part Two & Where to Learn more about Type-C and DisplayPort alt mode
Recently I blogged on the relationships between USB Type-C, USB 3.1, Power Delivery and DisplayPort specifications. In my last blog I simplified the view focusing on the important and latest specifications. I think the simplified view answer most designer’s questions but there are still a few that like to see the full history and complex interactions. The below image, click to enlarge, provides a more detailed view of the different specifications, timeline representation and relationships.
Posted in DisplayPort, State of USB, SuperSpeed USB, Type C, USB, USB 2.0, USB 3.0, USB 3.0, USB 3.0, USB 3.0 and 3D, USB 3.0 Device, USB 3.0 Host, USB 3.0 IP, USB 3.0 PHY, USB 3.0 Pricing, USB 3.0 Products, USB 3.1, USB 3.10, USB Certification, USB IP, USB Only, USB Power, USB Power Delivery, USB Power, Mobile Phones, Tablets, USB-C, USB-IF |
Welcome to Factual Friday.
The big question on people’s minds is if wireless, data transfer and charging, will replace USB in the future. The simple answer is NO, USB is here to stay. For the longer answer read on.
One of the challenges I had ramping back up on USB was understanding all of the advancements in the USB specifications since I last worked as part of the Synopsys DesignWare IP group. Of course along with the advancement of the USB specification also came a slew of new acronyms. Anything confusion I encountered was the connection between USB Type-C and USB 3.1. Apparently the confusion between USB Type-C and USB 3.1 is common as a simple search resulted in many technical article links, including the one below which I thought was a very good summary explanation.