Research On Design Technology Of Field Programmable Gate Array Architecture For Anti-fuse

With the development of electronic systems in the aerospace field,FPGA devices play more crucial role in this case..At present stage,most FPGA chips are constructed based on the structure of SRAM?FLASH and Anti-fuse.However,the data in SRAM will be lost when SRAM powered down.To meet the requirement of normal performance,the correct configuration data must be loaded into the SRAM by the configuration circuit after the system is powered on.In the aerospace field,cosmic rays of space environment or energetic charged particles generated by a ferromagnetic layer can cause interference to integrated circuits.When a single high-energy particle in the universe is injected into the semiconductor's sensitive area,the logic state of the device may be flipped that the original data stored 0 becomes 1,and the original data stored 1becomes 0,resulting in system dysfunction,and serious catastrophic accident.And as chip integration increases,the possibility of single-particle flipping is on the rise.The device is required to have high anti-radiation performance,so that the data to be configured can still be accurately stored in the bad working conditions,and the function of the circuit will not be invalidated result that the entire circuit is stable and reliable.Based on the anti-radiation PROM superiority of anti-fuse structure over other chips,PROM can save data stably and reliably,and exhibits unparalleled advantages on working in outer space environment in spite of strong radiation,serious electromagnetic interference,big temperature difference between day and night.Anti-fuse PROM is widely applied in aerospace,military and other high reliability fields with the advantages of fast read speed,low power consumption,wide application temperature range,strong anti-radiation ability,high security and good confidentiality.A novel framework of FPGA is proposed in this work,designed based on anti-fuse PROM + SRAM-type cell.PROM will be installed as a chip to load FPGA devices,so that configuration data can be storaged stablely.Compared to the common SRAM type FPGA,it has a certain anti radiation function,and the configuration data of different functions can be saved into different anti fuse configuration memory to realize different circuit design.The design of this work include: First of all,we research anti-fuse PROM work process,secondly,we discuss the configuration of SRAM type FPGA after power-on,next confirmed the FPGA configuration mode when PROM as aconfiguration chip,then design PROM chip interface circuit and FPGA minimum system board.Following,we design and configure the interface circuit,and emulate the function of the circuit,online debugging and physical verification.Finally,we operate an overall assessment of the system optimization and put forward reliable suggestions on the circuit configuration.