Local hot point mitigating system based on FPGA dynamic partially reconfigurable technology

Abstract

The invention relates to a local hot point mitigating system based on FPGA (Field Programmable Gate Array) dynamic partially reconfigurable technology. In engineering applications, continuous high-temperature operation may cause damage on local functional regions of a FPGA embedded system and further cause system crash. In the system provided by the invention, a real-time operating system schedules tasks operating in the regions with excessive temperature to a reconfigurable region wither lower temperature in real time, a ring oscillator implements that each module in the embedded system detects own temperature, when the embedded system detects that own task operating modules have excessive temperature, the embedded system transmits excessive temperature interruption to an operating system via an interruption control module, and then, the operating system schedules a scheduling strategy task operating thereon to find the reconfigurable region matched with the regions with excessive temperature in size and schedule the reconfigurable tasks in the regions with excessive temperature to the reconfigurable regions with lower temperature. With the system provided by the invention, the problem of local excessive temperature in a FPGA embedded system is mitigated, power consumption of a FPGA chip is reduced and hardware life cycle of the FPGA chip is improved.

Description

technical field [0001] The invention belongs to the field of embedded systems, and in particular relates to a system for preventing a field programmable gate array (FPGA) from running a certain functional area for a long time to cause overheating of a local area and causing an abnormal operation in a local area of ​​the FPGA. Background technique [0002] Field Programmable Gate Array (FPGA) has good programmable characteristics, it not only has the running speed and reliability of ASIC, but also has the flexibility of general processor. Therefore, the FPGA-based embedded system has the characteristics of high energy efficiency, low power consumption, and short development cycle, and with the continuous reduction of the development cost of the FPGA embedded system, the integration of FPGA is getting higher and higher, so that it can solve more complex logic functions. , has replaced ASIC products in many occasions, and is widely used in wireless communication, aerospace, con...

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Problems solved by technology

[0004] Although the FPAG embedded system can use the static global reconfigurable method to program the bitstream files of different layouts and wirings, using this method will require the entire system to stop working and re-programming takes a long time, which will greatly reduce the system's performance. Performance and flexibility, real-time is more difficult to guarantee

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