Why do I get a CPU overload error when executing my PCI 6052E card even at a low sampling rate of 25 Hz in xPC Target 2.9 (R2006a)?

I have a simple model with a PCI 6052E analog input block and an output port. I want to test the maximum sampling rate achievable by this setup. I get CPU overload errors even if I run the model at a sampling rate of 25 Hz. I am using Watcom compiler to build my application. PCI 6052E card itself supports sampling speeds upto 333kHz.

Answer 1

[MathWorks Support Team]

The issue is due to Watcom compiler not optimizing code in the desired way and hence leading to the CPU overload errors.

To work around this issue use a supported Visual C compiler.