xPC Target

xPC Target Kernel Polling Mode

Polling mode for the xPC Target real-time kernel is designed to execute target applications at sample times close to the limit of the hardware (CPU). Using polling mode with high-speed and low-latency I/O boards and drivers, allows you to achieve smaller sample times for applications that you cannot achieve using the interrupt mode of xPC Target.

Polling mode has two main applications:

• Control applications -- Control applications of average model size and I/O complexity that are executed at very small sample times (Ts = 5 to 50 us)
• DSP applications -- Sample-based DSP applications (mainly audio and speech) of average model size and I/O complexity that are executed at very high sample rates (Fs = 20 to 200 kHz)

Polling Mode

Interrupt Mode