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USB Protocol Triggering and Decode for Infiniium 90000 Series Oscilloscopes

Data Sheets

 Easily debug and test designs that include RS-232/UART using your Infiniium 90000 scope 

 Lower-speed serial bus interfaces such as RS-232 and other UART (universal asynchronous receive and transmit) interfaces are widely used today in electronic designs. In many designs these serial buses tend to provide contentrich points for debug and test. However, since these protocols transfer bits serially, using a traditional oscilloscope has limitations. Manually converting captured 1’s and 0’s to protocol requires significant effort, can’t be done in real-time, and includes potential for human error. In addition, traditional scope triggers are not sufficient for specifying protocol-level conditions. Extend your scope capability with the Keysight Technologies, Inc. RS-232/UART Triggering and Decode application. This application makes it easy to debug and test designs that include RS-232/UART protocols using your Infiniium 90000 scope.   Set up your scope to show RS-232/UART protocol decode in less than 30 seconds.  Get access to a rich set of software-based protocol-level triggers.  Save time and eliminate errors by viewing packets at the protocol level.  Use time-correlated views to quickly troubleshoot serial protocol problems back to their timing or signal integrity root cause.     

RS-232/UART setup and triggering  

Get access to a rich set of integrated protocol level triggers. The application includes a suite of configurable protocol-level trigger conditions specific to RS-232/UART. The application uses software-based search triggering when serial triggering is selected. With software-based protocol triggering, the oscilloscope takes signals acquired using either scope or digital channels and reconstructs protocol frames after each acquisition. It then inspects these protocol frames against specified protocol-level trigger conditions and triggers when the condition is met.   

RS-232/UART protocol decode and searching 

 Keysight’s protocol viewer includes correlation between the waveforms and the selected packet. The selected packet, highlighted blue row in the listing, is time-correlated with the blue line in the waveform display. Move the blue tracking marker in time through waveforms and the blue bar will automatically track in the packets window. Or, scroll through the packet viewer and highlight a specific packet. The time-correlation tracking marker will move to the associated point in the waveform.     Serial bus interfaces such as USB (universal serial bus) interfaces are widely used today in electronic designs. In many designs, USB buses can provide a content-rich point for debug and test. However, since USB protocols transfer bits serially, using a traditional oscilloscope has limitations. Manually converting captured 1’s and 0’s to protocol requires significant effort, can’t be done in real-time, and includes potential for human error. In addition, traditional scope triggers are not sufficient for specifying protocol-level conditions. Extend your scope capability with the Keysight Technologies, Inc. USB triggering and decode application. This application makes it easy to debug and test designs that include low, full, or high-speed USB protocols using your Infiniium 90000 scope. Set up your scope to show USB protocol decode in less than 30 seconds. – Get access to a rich set of integrated software-based protocol-level triggers – Save time and eliminate errors by viewing packets at the protocol level. – Use time-correlated views to quickly troubleshoot serial protocol problems back to their timing or signal integrity root cause.  

USB protocol triggering and searching 

Get access to a rich set of integrated protocol level triggers. The application includes a suite of configurable protocollevel trigger conditions specific to USB. The application uses software-based search triggering when serial triggering is selected. With software-based protocol triggering, the oscilloscope takes signals acquired using either scope or digital channels and reconstructs protocol frames after each acquisition. It then inspects these protocol frames against specified protocol-level trigger conditions and triggers when the condition is met.  

USB low and full-speed protocol decode

 USB full-speed protocol decode with precise time-correlation between waveforms and listing Keysight’s multi-tab protocol viewer includes correlation between the waveforms and the selected packet. The selected packet, highlighted blue row in the listing, is time-correlated with the blue line in the waveform display. Move the blue tracking marker in time through waveforms and the blue bar will automatically track in the packets window. Or, scroll through the packet viewer and highlight a specific packet. The time-correlation tracking marker will move to the associated point in the waveform.  

USB high-speed protocol decode 

Quickly move between physical and USB high-speed protocol layer information using the time-correlated tracing marker. Display protocol content using embedded decode in the waveform area. Or, see protocol events in a compact listing format using the industry’s first scope based multi-tab protocol viewer. For minor tick marks indicate clock transitions. Major tick markets indicate sections of the USB serial packet. 

High-Speed Inter-Chip (HSIC) protocol decode 

The HSIC decode allows user to decode data by itself or relative to the strobe signal. Data only decode uses the same clock recover method as standard High-Speed USB packets. In both cases all the features and capabilities of the USB protocol decode software, like packet search and viewing tabs, are available.

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