Method and device for operation of FPGA (Field Programmable Gate Array) in MCU (Microprogrammed Control Unit) chip

Abstract

The embodiment of the invention provides a method and a device for the operation of an FPGA (Field Programmable Gate Array) in an MCU (Microprogrammed Control Unit) chip. An FPGA module and a flash chip are integrated in the MCU chip, the FPGA module comprises an FPGA component and an FPGA IO (Input / Output) configuration submodule, and the FPGA IO configuration submodule is respectively connected with all elements in the MCU chip. The method includes the following steps: after the FPGA component is debugged and the MCU chip is electrified, the program data information preset in the flash chip is read; the hardware description information preset in the flash chip is read; the hardware description information is burnt into the FPGA component; the FPGA component is reset; the MCU chip adopts the FPGA to execute the program data information. The cost and waste can be reduced, and the condition that the circuit in the FPGA and the other circuits of the MCU chip can cooperatively work can also be ensured.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a method for FPGA working in an MCU chip and a device for FPGA working in an MCU chip. Background technique [0002] With the continuous improvement of integrated circuit technology, field programmable gate array FPGA (Field-Programmable Gate Array) appears as a semi-custom circuit in the field of application-specific integrated circuit (ASIC, Application-Specific Integrated Circuit), the logic block of FPGA And the connection can be changed according to the user's needs, and the logic blocks inside the FPGA can be connected through editable connections, so the FPGA can complete the required logic functions. [0003] Due to the extremely high flexibility of FPGA, MCU (Micro Control Unit, Micro Control Unit) chip manufacturers hope to integrate FPGA into MCU chips to solve the contradiction of different functional requirements of MCU chips in different application scen...

AI Technical Summary

Problems solved by technology

[0005] However, the complete FPGA has a large area. When integrated into the MCU chip, it needs to increase the chip's very large area, resulting in an increase in cost. Moreover, the complete FPGA contains some unnecessary components, resulting in waste. More importantly, When it is necessary to realize that the circuits in the FPGA and other parts of the MCU chip work together, because the work of the FPGA and the MCU chip is not related to each other, this requirement is difficult to achieve

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