Design and Implementation of 32 Bits Servo Controller for CNC
Presently,the products of domestic Servo Controller mainly take the 16 bits DSP(Digit Signal Processor) as the core processor.Because of the limit of its running speed and its word length,it is difficult to fulfill the complicated mathematic arithmetic and the higher control precision.This paper has implemented the hardware design of the high speed and high precision Servo Controller,which takes the 32 bits DSP TMS320F2812 as the core processor.Besides,it introduced the software design of the Servo Control system which based on the multi-duty real-time core DSP/BIOS.Finally,it gives a performance comparison with the performance of 16 bits Servo Controller,and gets the results of the 32 bits system′s test based on the LT-CNC(Lan Tian Computer Numeric Control) servo system.