基于高速eMMC存储的弹载记录仪设计

Design of missile-borne recorder based on high-speed eMMC storage

弹载记录仪是弹上关键设备,为了可以快速准确地记录弹箭开仓时的加速度及角速度飞行参数,提出一种基于高速eMMC存储的弹载记录仪设计方案。介绍系统的总体硬件架构和软件工作流程,重点研究单块eMMC数据读写的逻辑设计,FPGA与eMMC存储之间的数据传递采用串行的方式进行传输,写入速度为20 MB/s,读出速度为44 MB/s,存储容量为32 GB,实现一种高速读/写、低功耗、集成度高的6通道采集系统。实验表明,这个设计可完整读取到30 000 g的冲击数据。

Missile-borne recorder is the key device of projectile. To rapidly and accurately record acceleration and angular velocity flight parameters on projectile opening,a design scheme of the missile-borne recorder based on high-speed e MMC storage is proposed in this paper. The overall hardware architecture and software workflow of the system are introduced. The design of data read-write logic for single-block e MMC is emphatically studied. The serial mode is adopted for data transmission between FPGA and e MMC storage. A six-channel acquisition system with high-speed read-write,low power consumption and high integration is achieved,whose write-in speed is 20 MB/s,read-out speed is 44 MB/s,and storage capacity is 32 GB. The experimental results demonstrate that this design can fully read the data with 30 000 g impact.