I have noticed that when I run my Simulink model in external mode to receive some analog input data from a microcontroller (such as TI LAUNCHXL-F28379D) with a high sampling rate (sample time of 1e-4 or less), the model does not run properly. At sample time of 1e-4 and 1e-5 seconds, the lower right corner of Simulink shows the time elapsed since start of the simulation, but the time very slowly compared to real time (physical) wall clock. At 1e-6 sample time the model simply refuses to run and claims that the target device is not connected. Is this possibly due to a large amount of data passing thorugh the USB cable and overloading it in some way? Also is Windows 10 OS even capable of running fixed step Simulink simulations (for external mode with real hardware connected) at such small sampling rates? What is the smallest sample time that Windows is capable of running for external mode? I am currently trying to use the TI microcontroller as a black box, as just an advanced form of Arduino Uno with faster sampling capability. I am a beginner in this field so I'll be grateful for any help/guidance received. Thank You in advance!
