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System and method for controlling starting switching of CPU in POWER-PC

A POWER-PC, control unit technology, applied in the field of CPU startup management, can solve problems such as failure to start, equipment paralysis, etc., to avoid the effect of dismantling and repairing equipment

Inactive Publication Date: 2014-08-20
OPZOON TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

In the above designs, when there is a problem with the files in the NOR flash memory or the files in the NOR flash memory are accidentally modified, the device will be completely paralyzed and unable to start, and the only way to repair is to replace the NOR flash memory

Method used

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  • System and method for controlling starting switching of CPU in POWER-PC
  • System and method for controlling starting switching of CPU in POWER-PC
  • System and method for controlling starting switching of CPU in POWER-PC

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0045] The present invention provides a system and method for controlling CPU boot switching in a POWER-PC. When the CPU cannot boot from the NOR flash memory, it can reset itself and start from the NAND flash memory, so that the CPU can use other flash memories when it cannot boot from the NOR flash memory. Start up, and after the CPU starts up through the NAND flash memory, rewrite the startup file into the NOR flash me...

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Abstract

The invention discloses a system and method for controlling starting switching of a CPU in a POWER-PC. The system comprises a control unit, a flash memory unit, the CPU and a local bus. The control unit is used for controlling the CPU to be started in a selected flash memory. The flash memory unit comprises an NOR flash memory and an NAND flash memory which are respectively used for storing starting files. The CPU is started by reading starting files stored in the flash memory unit. The local bus is used for connecting the control unit, the flash memory unit and the CPU, and data are transmitted among the control unit, the flash memory unit and the CPU through the local bus. The CPU is started in the NOR flash memory by acquiescence, and when the CPU is started unsuccessfully through the NOR flash memory, the control unit controls the CPU to be started through the NAND flash memory, the CPU can automatically reset and is started through the NAND flash memory, and the CPU can be started through other flash memories when the CPU cannot be started through the NOR flash memory.

Description

technical field [0001] The invention relates to the field of CPU startup management, in particular to a system and method for controlling CPU startup switching in a POWER-PC. Background technique [0002] The CPU in the POWER-PC architecture can be booted from different types of storage media, usually from NOR flash memory (NOR flash), or from NAND flash memory (NAND flash) or SD card. According to the design concept of POWER-PC, booting from NOR flash memory is the best choice, which is also the most commonly used booting method in existing devices. In view of the small storage space of NOR flash memory, it is not enough to accommodate the entire boot file. The boot file is placed in NOR Flash, and the image file is placed in NAND flash memory or SD card. In the above designs, when there is a problem with the files in the NOR flash memory or the files in the NOR flash memory are accidentally modified, the device will be completely paralyzed and cannot be started, and the o...

Claims

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Application Information

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IPC IPC(8): G06F11/07G06F1/24
Inventor 林旭东
Owner OPZOON TECH
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