This video shows how to program the GPIO with Model Based Design Toolbox to obtain the speed reference for the BLDC speed closed loop control system.
We discuss about:
- How to implement a simple program to read data from the GPIO
- How to test in real time with FreeMaster
- How to transform GPI pulses into a speed reference data that represents the rpm.
- How to implement from scratch a Simulink model to cover the GPIO functionality
NOTE: Chinese viewers can watch the video on YOUKU using this link.
I'm using Matalb Simulink v2017.b and the MBDT toolbox v2.0.0. Building project is successful, but I cannot succeed flashing the microcontroller (MPC5744P). The problem I identified is that I cannot change the COM port to download the code, in the Configuration Parameters > PIL and Download Config panel. Even if I type the correct number of COM port, the default value ('1') is kept.
Do you have any idea about the origin of the problem and how to fix it ?