MATLAB Simulink Embedded Coder-Based TMS320F28335 DSP Programming for Real-Time Control Applications

This article provides a detailed explanation of how to program and configure the Texas Instruments (TI) digital signal processor (DSP) TMS320F28335 through Code Composer Studio (CCS) version 6 and the MATLAB embedded coder. TMS320F28335 is a variant of TI’s C2000 DSP family, which is designed specifically for real-time practical control applications with processor clock speeds up to 150 MHz. First, it shows how to configure the MATLAB Simulink and Embedded Coder to generate a code file to program DSP using CCS V6. This work demonstrates the workflow of algorithm modeling, code generation, and hardware deployment using a closed-loop control application. General models of PWM pulse generation using the ePWM module and serial communication using the SCI module are simulated with the help of an embedded coder library and validated through hardware results. Finally, a model of a conventional phase-locked loop (PLL) in dq-domain with a three-phase inverter topology is developed to extract the phase and frequency of the grid using the DSP control board.