提出一种用真双口RAM操作地址首末相连实现环形缓存,用滑动窗口对输入环形缓存的时序数据进行分段的数据处理系统。通过采用突发模式将实时数据写入环形缓存中,减少环形缓存写入时重复输入RAM操作地址产生的时序消耗,相比单字节模式速率提高49.9%。通过在环形缓存上预留1 MB缓存区域,使系统在写入环形缓存数据速率在12~20 Mb/s范围内不恒定情况下仍能正常工作,提高系统适用性。将其部署在FPGA上,验证结果表明,系统能够满足电子系统实时数据分段计算要求。

In the paper,a data processing system is proposed that uses true dual-port RAM operation addresses to connect end-to-end to realize a ring buffer,and uses a sliding window to segment the time series data input to the ring buffer.By using burst mode to write real-time data into the ring cache,the timing consumption caused by repeated input of RAM operation addresses when the ring cache is written is reduced,and the rate is increased by 49.9% compared to the single-byte mode.By reserving a 1 MB buffer area on the ring buffer,the system can still work normally when the data rate of writing to the ring buffer is not constant within the range of 12~20 Mb/s,and the system applicability is improved.The verification of deployment on FPGA shows that the system meets the real-time data segmentation calculation requirements of the electronic system.