Initialization method of external memory based on FPGA (Field Programmable Gate Array)

An initialization method of an external memory based on an FPGA comprises the steps that a configuration file is provided, and the configuration file comprises a logic code, a preferential use data code and a soft core starting code; a configuration file is loaded into the FPGA; the FPGA defines a logic circuit in the FPGA based on the logic code in the configuration file, and builds a processor; a processor in the FPGA reads preferential use data from an external flash memory based on the preferential use data code and copies the preferential use data to an external memory; and a processor in the FPGA reads soft core data from an external flash memory based on the soft core starting code and copies the soft core data to an external memory. The preferential use data can be loaded into the external flash memory before the soft core data, so that the preferential use data can be preferentially used by the external equipment in the system before the application program is started, and the man-machine interaction