R&S scopes trigger on Manchester- and NRZ-coded buses

Rohde & Schwarz has added more trigger and decoder options for its RTO and RTE oscilloscopes so that they can be used to debug serial protocols that employ Manchester or NRZ coding.

This coding is typically used with interface buses such as Profibus, Dali or MVB.

It is also used in the aerospace and defence sector in proprietary serial protocols.

The RTx-K50 trigger option covers data rates of up to 5Gbit/s and supports up to 50 different telegram formats.

According to the R&S, users can define their own preamble, frame ID, data, CRC and other telegram fields. Protocol decoding also takes Manchester code violations into account.

R&S writes:

“Users can trigger on telegram and data content with the R&S RTx-K50 option. The decoded protocol content is displayed in an easy-to-read, color-coded format. Time correlation with the analog signal makes it easy to identify faults caused by signal integrity problems.”

A tabular list of the protocol contents can also be provided.

 

Richard Wilson

from News http://ift.tt/1IFTtSf
via Yuichun