Design Of ARINC429 Bus Communication System Based On FPGA

An FPGA–based ARINC429 Bus Communication System is designed in this paper combined with current technology of FPGA and USB 2.0. One transmission and two reception channels have been implemented in the bus communication system. It can work at three transmission rate,100kbps/50kbps/12.5kbps. Three ways of data transmission have been accomplished, it can be single, repeated continuous transmission, and the word gap and frame period can be programmable. Each received data has a time label associated with it. The analysis of error data can be made in the test result.The structure of USB interface chip,FPGA and dedicated 429 chip has been adopted to achieve the hardware of ARINC429 Bus Communication System. In this scheme, Cypress corporation's low power consumption chip CY7C68013A has been used to communicate with a host computer through USB interface. Altera corporation's chip EP1C6Q240C from Cyclone series was a chip with higher cost performance , which is powered by 3.3V and possessed 5980 logic elements. Intersil corporation's dedicated 429 chip HS-3282/3182 has been used to accomplished data transform for 429 bus, which can cut off the development cycle . The software of 429 bus Communication System consisted of user's interface form LabVIEW, FPGA program from VHDL and internal program of USB chip from C51. This accomplished the function of host computer , the management of the data transmission of USB and 429 bus, and the construction of dpram within FPGA.The experiment proved that this ARINC429 Bus Communication System board can be easily applied to maintenance and testing of devices based on 429 bus.