Firmware Upgrade Method for Embedded System
An embedded system and upgrade instruction technology, which is applied to the loading of microprograms, generation of response errors, and instruments, etc., can solve the problems of upgrading within the machine time, not receiving upgrade instructions during the interval or unsuccessful upgrade, etc. Achieving a Guaranteed Upgrade
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[0029] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0030] figure 1 and figure 2 A flowchart showing the firmware upgrade method of the embedded system in this embodiment. The embedded system includes but is not limited to the built-in embedded system of the steering gear, and can also be the built-in embedded system of other smart terminals. like figure 1 As shown, in a specific embodiment, the firmware upgrade method of the embedded system includes the following steps:
[0031] S1: Initialize the upgrade hardening area, start the watchdog program and time it.
[0032] Each embedded system is equipped with a watchdog (WatchDog Timer, referred to as WDT) program, when the MCU (ie Microcontroller Unit, micro control unit, hereinafter referred to as MCU) of the embedd...
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