Quick starting method for embedded operating system based on ZynqMP platform

Abstract

The invention discloses a quick starting method for an embedded operating system based on a ZynqMP platform. The system board is powered on, and an operating system and platform management unit firmware are loaded at the same time; the platform management unit firmware enters a low-power-consumption to-be-awakened state after electrifying the auxiliary core; a wake-up instruction is performed by using an operation system to wake up the secondary core; the auxiliary core is powered on according to the awakening instruction to execute the instruction and jumps to a multi-core state, and multi-core starting is achieved. According to the invention, firmware of the operating system and firmware of the platform management unit are independently loaded and enter respective operating environments; the auxiliary core is waken up and loaded by using the operating system according to the wakeup instruction, and thus entering a multi-core mode; an operating system is used to directly wake up the secondary core to load and enter multi-core starting; service loading starting during operation is avoided, and starting items are reduced; the starting process of the operating system is simplified, codes are easy to maintain and transplant, and the starting speed of the whole system is increased.

Description

technical field [0001] The invention belongs to the field of communication control and manipulation, and in particular relates to a method for quickly starting an embedded operating system based on a ZynqMP (Zynq UltraScale+MPSoc) platform, which is suitable for missile-borne control, wireless communication, 5G deployment, etc. based on ZynqMP that require high real-time performance Quick start of Realm OS. Background technique [0002] The start-up technology of the embedded operating system is the key technology of the control system, and the system start-up time is the key index that affects the product performance. For the new generation of ZynqMP series chips, considering the stability of the overall device operation, 6 startup items must be loaded at the same time when booting the operating system. The multi-core startup of the operating system uses the SMC (secure monitor call) instruction, which has relatively high requirements for the operating system. , There are ...

AI Technical Summary

Problems solved by technology

For the new generation of ZynqMP series chips, considering the stability of the overall device operation, six startup items must be loaded at the same time when booting the operating system. The multi-core startup of the operating system uses the SMC (secure monitor call) instruction, which has relatively high requirements for the operating system. , there are many startup items in the startup mode of the operating system, the startup process is complicated, and it takes a long time to start, which affects the practical performance and efficiency of the product

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