FPGA-Based Design of Decoding Circuit for the Absolute Encoder of TS5643N100
Chen Li · Small & Special Electrical Machines · 2013
The design of FPGA-based decoding circuit for the absolute encoder of TS5643N100 was proposed to acquire the position and status information of absolute encoder of TS5643N100.Through this design of FPGA-based decoding circuit,the absolute encoder information of position and status were acquired and used as the feed-back signal of servo system controller.The modularization concept was applied to the circuit,which consists of decoding,deserializer,cyclic redundancy checking,data-separation processing and other modules.The results show that this FPGA-based decoding circuit can implement the communication between the absolute encoder of TS5643N100 and follow-up processor.The controller of upper computer can acquire information from encoder via this circuit.These indicate that FPGA-based decoding circuit may replace the expensive special converter of AU5688 chip and can simplify the design of system structure and reduce product's cost.