CPU system starting method and system

A startup system and version technology, applied in the direction of program loading/starting, program control devices, etc., can solve the problems of inconvenient board maintenance, increased equipment maintenance costs, and CPU failure to start normally, and achieve the effect of reliable upgrades
CN100511148CInactive Publication Date: 2009-07-08ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2009-07-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method and system for starting a CPU system. The starting method is as follows: power on a single board, start a piece of BOOT FLASH and run the version software therein to guide the starting of the CPU system, and reset the single board if it fails to start or run , Start another piece of BOOTFLASH and run the version software in it to guide the CPU system to start. The present invention adopts the combination of software and hardware, and protects the key points in the CPU system startup process by using two BOOT FLASH chips. When the BOOT FLASH fails to start or the version software fails to run, it can be restarted by restarting another BOOT FLASH To guide the CPU to start, and the software of the two BOOT FLASH chips can be upgraded to achieve a more reliable CPU system start and boot program upgrade.
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Description

technical field

[0001] The invention relates to the technical fields of digital communication and computer, in particular to a method and system for starting a CPU system. Background technique

[0002] With the rapid development of digital communication technology and computer technology, compared with MCU (single-chip microcomputer, Micro Controller Unit), the application of CPU in embedded intelligent systems is more and more common. A typical CPU minimum system consists of CPU, RAM (random access memory, random access memory), BOOT FLASH (flash used to store boot code), peripheral communication interface, power supply and power management and single board management logic. The CPU is mainly responsible for providing data processing and single-board control MIPS (in megabytes, refers to the number of instructions executed per second, which is used to represent the processing capability of the CPU, Million Instructions per second); RAM provides storage areas for code and d...

Claims

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