Digital Signal Processing Reference
In-Depth Information
number of clock cycles where data was transferred, was not
available to transfer from the source or was back-pressured by the
sink.
The Altera trace system is instantiated when you are building
a video design within the QSYS environment. Two parts are
needed: a trace monitor component for each interface to be
traced and a trace system component which transfers trace data
packets to the host.
A video trace monitor component needs to be inserted into
each video stream you want to monitor. This component is non-
intrusive
it has no effect on the video data going through the
stream. The video trace monitor component reads the signals
being transmitted and sends summaries to the trace system. You
will need to parameterize the video trace monitor to match the
type of data being sent and to match the trace system data-width.
The trace system component takes the reports from the trace
monitors and buffers them before sending the results to the host
e
Figure 21.3. Trace monitors and the trace system.
