Hardware Development of CNC System Based on OMAPL138 and FPGA

Jia Jian Li; Jian Qun Liu; Ping Zhang; Wei Qiang Gao

doi:10.4028/www.scientific.net/KEM.620.575

Paper Titles

Design and Implementation of Keyboard Module in V-Groove CNC System Based on LPC1343
p.550

Design of Virtual Machine Assembly Simulation System in Single-Channel Immersion
p.556

Development of Interface Card Drivers Based on Matlab/xPC Target
p.563

FRACAS Based Failure Information Management for High-Speed Train
p.569

Hardware Development of CNC System Based on OMAPL138 and FPGA
p.575

Intelligent Testing System for AC Load Based on PLC
p.581

Precision Measurement and Error Evaluation of Connecting Rod Standard Gauge Block Based on CMM
p.587

Prediction of Surface Roughness Based on Least Square Support Vector Machine in Low-Frequency Vibration Cutting Process
p.592

Fuzzy Self-Tuning PID Controller for Pressure Control in VCM
p.598

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Hardware Development of CNC System Based on OMAPL138 and FPGA

Abstract:

In order to realize high speed, high precision, high reliability, miniaturization performance of the CNC (Computer numerical control) system, this paper proposed a hardware platform of embedded CNC system based on OMAPL138 and FPGA. OMAPL138 is a SOC using C6748 DSP kernel and ARM9 kernel dual-core structure, the kernel frequency can achieve up to 375/456 MHz. ARM kernel of the CNC system which runs the Linux operation system is responsible for task management, DSP kernel is in charge of real-time interpolation and look-ahead algorithm, and FPGA module generates pulses to control the movement of the servo motor. Firstly, the overall hardware architecture of the embedded CNC system was designed. Meanwhile the hardware circuit design of CPU core module based on OMAPL138, human-computer interaction module, EMIFA bus interface of the FPGA core module were emphasized in detail, and also the serial port, Ethernet, USB communication interface module were introduced. A serial test experiments have been conducted and the results have shown that this embedded CNC system is powerful and stable.