关键词: 三重模件冗余（TMR）, 现场可编程门阵列, 动态重构, 总线宏, 部分重构

Abstract: In the space environment，reliability is the key to ensure normal operation of the system.This paper presents a D/TMR design of dynamic part reconfigurable system based on FPGA.DMR system is used to work with lower area overhead and power consumption.When the system fails，it switches to TMR system without additional fault detection and location circuits，using dynamic part of the reconstruction technique.The system can maintain the continuity and reliability of the function.The experimental results show that the design is feasible.

Key words: Triple Modular Redundancy（TMR）, Field Programmable Gate Array（FPGA）, dynamic reconfiguration, bus macro, partial reconfiguration