Apparatus and method used for upgrading mirror file of field programmable gate array

Abstract

Embodiments of the invention provide an apparatus and a method used for upgrading a mirror file of a field programmable gate array, and belongs to the technical field of electronics. The apparatus comprises a read-write module, a selection module, a serializer and an ICAP loading module, wherein the read-write module comprises a data reading channel and a data writing channel; the data reading channel is used for reading data from a flash; the data writing channel is used for receiving a new mirror file and writing the new mirror file in the flash; the selection module is used for selecting operation of connecting the flash with the data reading channel or the data writing channel; the serializer is connected with the selection module and the flash and used for realizing data transmissionbetween the selection module and the flash; and the ICAP loading module is used for loading the new mirror file in the flash to a programmable array. According to the technical scheme, the FPGA can reload a bit stream under the condition of no power failure; the transmission efficiency can be effectively improved; and the interference between reading and writing operations is reduced.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a device and method for upgrading a field programmable gate array image file. Background technique [0002] FPGA (Field Programmable Gate Array, Field Programmable Gate Array) devices have the advantages of high density, low power consumption, high speed, high reliability, etc., and have been widely used in locomotive image detection, aerospace, communication, industrial control, etc. [0003] Since the FPGA device uses the SRAM (Static Random Access Memory) process, the configuration data in the FPGA will be lost when the power is turned off, so a non-volatile memory is needed to combine with the FPGA to complete the embedded system. design. Flash (flash memory) has the characteristics of simple interface, small size, and convenient configuration. It is usually used to store FPGA configuration files and software executable codes. After a reasonable configuration, the syste...

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