User`s guide

12 Troubleshooting
12-16
When this error occurs, the target object property CPUoverload changes from
none to detected. To correct the issue, perform one of the following:
• Change the model
Fixed step size property to a larger value and rebuild
the model. Use the
Solver node in the Simulink model Configuration
Parameters dialog.
• Run the target application on a target PC with a faster processor.
Target PC BIOS. This section assumes that the target PC has BIOS running on
it. A CPU overload error can occur if any of the following is enabled:
• Advanced Power Management
• USB ports
• Plug and Play (PnP)
Enabling any of these properties causes non-real-time behavior from the target
PC. You must disable these BIOS properties for the target PC to run the target
application properly in real time.
More Help. If the preceding procedures do not solve your issue,
• Run
xpcbench at the MATLAB command line. For example,
xpcbench('this')
This program accurately evaluates your system. The results indicate the
smallest base sample time that an xPC Target application can achieve on
your system. For more information on
xpcbench, type help xpcbench at the
MATLAB prompt or
http://www.mathworks.com/support/product/XP/productnews/benchmar
ks.html
.
• Set up the xPC Target environment with a different target PC. Compare the
result with the original target PC.
Building a Model That Contains a CAN Board
In releases prior to R14SP1 (xPC Target Version 2.6.1), if you want to use the
target PC in a CAN network, you must remember to set up the xPC Target
environment for a CAN library. If you do not configure a CAN library into the
system, you will get CAN errors when building the target application. In later
releases, xPC Target selects the appropriate CAN library for you.