Trace system parameter settings, Trace system parameter settings -2 – Altera Video and Image Processing Suite User Manual
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The IP core provides access to the control interfaces on the monitors. You can use these control ports to
change the capture settings on the monitors; for example, to control the type of information captured by
the monitors or to control the maximum data rate sent by the monitor.
Note: Each type of monitor is different. Refer to the relevant documentation of the monitors for more
information.
Each trace monitor sends information about interesting events through its capture interface. The trace
system multiplexes these data streams together and, if the trace system is running, stores them into a FIFO
buffer. The contents of this buffer are streamed to the host using as much as the available trace
bandwidth.
The amount of buffering required depends on the amount of jitter inserted by the link, in most cases, the
default value of 32Kbytes is sufficient.
Note: The System Console uses the
sopcinfo
file written by Qsys to discover the connections between the
Trace System IP core and the monitors. If you instantiate and manually connect the Trace System
IP core and the monitors using HDL, the System Console will not detect them.
Trace System Parameter Settings
Table 20-1: Trace System Parameter Settings
Parameter
Value
Description
Export interfaces for connection
to manual debug fabric
Yes or No
If you select USB as the connection to host,
selecting Yes shows the
usb_if
conduit—
enables you to manually connect this
interface.
Connection to host
• JTAG
• USB
Select the type of connection to the host
running the System Console.
Bit width of capture interface(s) 8–128, Default = 32
Select the data bus width of the Avalon-ST
interface sending the captured information.
Number of inputs
2–16, Default = 2
Select the number of trace monitors which
will be connected to this trace system.
Buffer size
8192–65536, Default =
32768
Select the size of the jitter buffer in bytes.
Insert pipeline stages
On or Off
Turn on to insert the pipeline stages within
the trace system. Turning on this parameter
gives a higher f
max
but uses more logic.
20-2
Trace System Parameter Settings
UG-VIPSUITE
2015.05.04
Altera Corporation
Trace System IP Core