User`s guide

Polling M o de
The minimu m achievable base sample time for th i s model using an ode4
fixed-step integration algorithm is 11 µs with signal logging disabled and 12
µs with signal logging enabled. T his equals a sample rate of almost 100 kHz.
Theachievablesampletimeforthesamemodelininterruptmodeis~28µs
or a sample rate of ~33 kHz. For this application, the overall performance
increase using polling m ode is almost a factor of 3.
Polling Mode and Multicore Processors
If your target PC has multicore processors, enabling the multicore processor
supports removes the following restrictions. Other restrictions s till apply.
(For details on how to enable multicore processor support, see the
setxpcenv
function or the “Changing Environment Properties with xPC Target Explorer”
on page 6-3 topic in the Chapter 6, “Software Environment and Demos”
chapter.)
• Host-target communication is now available during the execution of the
target application.
• Target screen now updates during the execution of the target applica tio n.
• External interrupts are now allowed during the execution of the real-time
model. This does not mean that you can trigger your mo de l with an
external interrupt.
• File scopes can now log data into a file on the target PC.
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