USB File Handling System for CNC Machine using Dual Core DSP Processor

Abstract

Precisely programmed commands encoded on a storage medium are used for automation of machine tools in the Computer Numeric Control (CNC) machines. End to end component design is highly automated using DSP processor in the modern CNC systems. The use of RS232 for serial communication became inefficient now a days where fast processing is required. RS232 communication is slower in terms of speed compared to USB communication so it is efficient to use USB communication for CNC to continuously work with the system. In USB communication number of devices can be connected by using USB hub but using RS232 only one device can be connected at a time. In this experiment the dual-core DSP microprocessor TMS320F28377D is used for fast and precise operation. The processor has USB 2.0 slot so it becomes easy to develop a FAT32 file management system for CNC machine using USB 2.0 flash drive.