Design and Implementation of an Airborne Data Recorder Based on SOPC

To save the information of one airborne fire control system accurately for the use of ground monitoring and flight training,an airborne data recorder was designed based on SOPC.According to the data transfer feature and the requirement to reliability,NAND Flash was used as storage media,and MicroBlaze was taken as the control center.By use of the free IP and User logic IP core of MicroBlaze,the interface of Flash with general purpose USB chip CH375 was designed.Bad block management and energy saving mode were adopted.The experiment showed that this low-cost system is flexible and user-friendly,and data transfer speed is close to 1 MB/s,which can satisfy the practical requirement.The system supplies a reliable mode for monitoring the fire control system of the airplanes.