FPGA configuration file update device

Abstract

The invention discloses a field-programmable gate array (FPGA) configuration file update device. A microprocessor / microcontroller imports an FPGA configuration file from an external memory through a universal plug and play interface, and transmits the FPGA configuration file to an FPGA chip; the FPGA chip converts the FPGA configuration file into a data format capable of being identified by a nonvolatile memory, transmits the converted FPGA configuration file to the nonvolatile memory for storage, and updates the FPGA configuration file; and after a digital system is electrified again, the FPGA chip automatically reads the updated configuration file stored in the nonvolatile memory to realize automatic loading and normal operation. In the device, only when the FPGA configuration file needs to be updated, a new FPGA configuration file is written into the nonvolatile memory so as to realize the requirement of online configuration; and meanwhile, the microprocessor / microcontroller provides the interface for the external memory and reads the FPGA configuration file into the personal memory, and then the FPGA configuration file is written into the nonvolatile memory so as to realize the update of the FPGA configuration file and avoid the limitation of a special downloading line.

Description

technical field [0001] The invention belongs to the technical field of digital systems, and more specifically relates to a device for updating FPGA chip configuration files in a digital system to realize different circuit functions of the digital system. Background technique [0002] A digital system is an electronic system that stores, transmits, and processes digital information. In recent years, it has been widely used in various fields of science and technology such as television, radar, communications, electronic computers, automatic control, and aerospace. The digital system is based on binary and has the characteristics of simple implementation and high reliability; it also has the ability of mathematical operations and logical operations, and is extremely suitable for applications such as calculation, comparison, storage, transmission, control, and decision-making; high integration and small size , low power consumption, strong anti-interference ability, easy to real...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that every time it is powered on, it needs to be controlled by the microprocessor / microcontroller, which not only increases the burden on the microprocessor / microcontroller, but also has to wait for the microprocessor to wait for the power-on FPGA chip every time it is powered on. / The microcontroller can only be configured after the initialization is completed, which increases the waiting time for the FPGA chip to be configured, that is, increases the time from power-on to normal operation of the entire system

At the same time, the impact of the second method on maintenance cost, cycle and difficulty still exists in this method

[0009] The above three commonly used configuration methods have their own advantages and characteristics, and are suitable for different occasions. However, due to their own limitations, they cannot meet the needs of online configuration, getting rid of the constraints of download lines, and being convenient and fast at the same time.

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