| 摘要: |
| 为了实现空间电磁环境中数据缓存，提出了一种采用FPGA设计具有高可靠性的SDRA
M控制器方案。该控制器采用自顶向下的模块化设计，包括顶层控制和底层驱动两层状态机
，并且通过上电自校验和关键控制模块三模冗余提高其可靠性。在此基础上，完成了控制器
的FPGA硬件实现和测试。测试结果表明，该设计方案具有很高可靠性和可移植性，对应用于
空间电磁环境中的数据缓存系统的工程实现具有指导意义。 |
| 关键词: 空间电磁环境 数据缓存 SDRAM控制器 可靠性 三模冗余 自校验 |
| DOI： |
|
| 基金项目: |
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| Design and Implementation of a High Reliability SDRAM Controller Based on FPGA |
| ZHU Wen-bin,LIU Chun-ping,HUANG Zhen |
| () |
| Abstract: |
| A design method of high reliability SDRAM controller based on FPGA is
proposed for data cache utilized in space electromagnetic environment. This
controller is modularized from top to bottom, including two layers state machine
of top control and bottom driver.Its reliability is improved by the f
unctions of power-on self-checking and critical control module triple modular re
dundancy(TMR). Finally, the FPGA hardware implementation and testing of the con
troller are completed, and the test results show that this design is high
ly reliable and flexible, which can be provided as guidance for realization of a
practical data cache system in space electromagnetic environment. |
| Key words: space electromagnetic environment data cache SDRAM controller reliability triple modular redundancy self checking |
《电讯技术》编辑部 