User guide

Table Of Contents
January 2013 Altera Corporation Video and Image Processing Suite
User Guide
7. Avalon-ST Video Monitor MegaCore
Function
Core Overview
The Avalon-ST Video Monitor MegaCore function is a debugging and monitoring
component. The monitor together with the associated software in the System Console
allows you to capture and visualize the flow of video data in a system. You can
inspect the video data flow at multiple levels of abstraction from the Avalon-ST video
protocol level down to raw packet data level.
f To know more about debugging designs with System Console, refer to the Analyzing
and Debugging Designs with the System Console chapter in the Quartus II Handbook.
Functional Description
The Avalon-ST Video Monitor enables the visibility of the Avalon-ST video control
and data packets streaming between video IP components. To monitor the video
control and data packets, you must insert the monitor components into a system.
Figure 7–1 shows the monitor components in a system.
The monitored Avalon-ST video stream enters the monitor through the
din
Avalon-ST
sink port and leaves the monitor through the
dout
Avalon-ST source port. The
monitor does not modify, delay, or stall the video stream in any way. Inside the
monitor, the stream is tapped for you to gather statistics and sample data. The
statistics and sampled data are then transmitted through the
capture
Avalon-ST
source port to the trace system component. The trace system component then
transmits the received information to the host. You may connect multiple monitors to
the Trace System.
Figure 7–1. Avalon-ST Video MonitorFunctional Block Diagram
Avalon-ST Sink
(din)
Avalon-MM Slave
(control)
Avalon-ST Source
(capture)
Avalon-ST Source
(dout)
Avalon-ST Video Monitor
Video IP Video IP
Statistics and
Date Capture
Altera Trace System