Boot-up method of multi-partition system and multi-partition system

A multi-partition and boot partition technology, which is applied in the automotive field, can solve problems such as ECU or related peripheral damage, and application programs cannot work normally, and achieve the effect of ensuring safe startup

Active Publication Date: 2018-12-07
大陆汽车车身电子系统(芜湖)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In this way, fast update can be achieved, but it will also bring some problems: if illegal partition data or incompatible partition data is written, the application may not work normally, and in severe cases, it will cause ECU or related peripherals to damage

Method used

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  • Boot-up method of multi-partition system and multi-partition system
  • Boot-up method of multi-partition system and multi-partition system
  • Boot-up method of multi-partition system and multi-partition system

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Embodiment Construction

[0029] Such as figure 1 , figure 2 As shown, the multi-partition system according to an embodiment of the present invention is a vehicle electronic control unit, specifically a combination instrument controller.

[0030] The multi-partition system includes a boot partition and multiple application partitions, the boot partition is used to store boot programs, and the application partition is used to store application programs and application data.

[0031] In this embodiment, the application partitions include first, second, third, ..., N application partitions, wherein the first application partition stores the main application program, that is, the instrument cluster control program, and the second, third, ..., N application partitions store application data , such as meter animation data, menu data, etc.

[0032] Specifically, the boot partition and the first application partition are set on the first memory, and the second, third, ..., N application partitions are set o...

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PUM

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Abstract

The invention provides a boot-up method of a multi-partition system. The multi-partition system comprises a guide partition and a plurality of application partitions, wherein the first application partition is provided with a reference verification data area, and e other application partitions are provided with a data area to be verified. The method comprises the following steps: when a boot program is started, reading the reference verification data area of the first application partition; verifying the application partition, and if there is an application partition that fails the verification, stopping starting the bootstrap program; if all the application partitions pass the check, starting the application stored in the first application partition. The invention also provides a multi-partition system. The invention provides a boot-up method of a multi-partition system and a multi-partition system. When a bootstrap program is started, the application partition is checked according tothe data in a datum check data area and the data in a corresponding data area to be checked. If there is an application partition that fails the check, the bootstrap program stops startup to ensure the safe startup of the multi-partition system.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method for starting a multi-partition system and the multi-partition system. Background technique [0002] The system used in the electronic control unit (Electronic Control Unit, ECU) used in the vehicle is getting bigger and bigger. In order to achieve fast update, the boot program, application program and application data are usually stored in multiple partitions. When updating, only the corresponding partitions without having to update them all. [0003] Specifically, the ECU starts to run from the boot program, checks whether there is an update request, if not, directly starts the application program; if yes, updates the data of the corresponding partition, and then starts the application program. [0004] In this way, fast update can be achieved, but it will also bring some problems: if illegal partition data or incompatible partition data is written, the application may not w...

Claims

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Application Information

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IPC IPC(8): G06F9/4401G06F9/445
CPCG06F9/4401G06F9/44505
Inventor 王威
Owner 大陆汽车车身电子系统(芜湖)有限公司
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