Real-Time CAN Bus Joystick Interface with TMS320 32-Bit Microcontroller for Defence Applications | Zendy

NS Lakshmi Priyaa | Zendy; Aparna Balasubramanian | Zendy; G Tejeswar | Zendy; R Vidhyashankar | Zendy; S. Mohana Sundari | Zendy; Chandramauleshwar Roy | Zendy

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Real-Time CAN Bus Joystick Interface with TMS320 32-Bit Microcontroller for Defence Applications

Author(s) -

NS Lakshmi Priyaa,

Aparna Balasubramanian,

G Tejeswar,

R Vidhyashankar,

S. Mohana Sundari,

Chandramauleshwar Roy

Publication year - 2025

Publication title -

ieee access

Language(s) - English

Resource type - Magazines

SCImago Journal Rank - 0.587

H-Index - 127

eISSN - 2169-3536

DOI - 10.1109/access.2025.3611988

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

This paper employs the TMS320F28335 microcontroller to establish a CAN bus communication system for interfacing with a joystick. The microcontroller’s ADC converts analog joystick signals into digital values, which are processed using linear scaling algorithms to derive motion (Azimuth) and angle (Elevation) measurements. These measurements are averaged for noise reduction and then transmitted via the CAN bus in structured byte-array packets. Implementation involves initializing system control, GPIO, ADC, CAN, and timer peripherals. The ADC continuously samples signals and stores them in lookup tables; converted values are packaged using pre-configured CAN mailboxes and sent at regular intervals using a timer-based ISR. Additionally, the system integrates a secondary CAN node (Arduino) to demonstrate multi-node communication. Visualization and validation are achieved through an Integrated Guidance and Control Display Unit (IGCDU) and a CAN Bus Analyzer. The authors have developed and implemented the complete embedded system architecture, including real-time signal acquisition routines, ADC-to-angle conversion algorithms, multi-node CAN communication logic, and visualization through IGCDU. This integration enables synchronized, real-time data capture, monitoring, and fault-tolerant transmission, making it ideal for embedded defense system applications.

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