Chip, electronic equipment and chip starting method

Abstract

The invention provides a chip, electronic equipment and a chip starting method, and the chip comprises a read-only memory, an electric programmable fuse and a central processing unit. Wherein the read-only memory stores a startup code of the chip, and the startup code comprises fault configuration information which causes the chip not to be normally started. The electrically programmable fuse stores repair configuration information corresponding to the fault configuration information. By changing the execution logic of the central processing unit on the starting code, the central processing unit can read the starting code from the read-only memory and execute the starting code; when the initialization of the electrically programmable fuse is completed according to the starting code, reading the repair configuration information from the electrically programmable fuse to perform configuration operation; and skipping the fault configuration information when the fault configuration information is executed. Therefore, when the chip is started, configuration operation is carried out according to the repair configuration information in the electrically programmable fuse, and the chip can be successfully started, so that the chip does not need to be scrapped, and the purpose of reducing the production cost of the chip is achieved.

Description

technical field [0001] The present application relates to the field of chip technology, and in particular, to a chip, an electronic device and a chip startup method. Background technique [0002] At present, most chips (such as special-purpose processing chips, general-purpose processing chips, etc.) are started from a read-only memory, and the start-up operation of the chip is realized by executing the start-up code in the read-only memory. Therefore, once there is an error in the written startup code in the read-only memory, for example, the configuration information therein is wrong, the chip cannot be started up. However, the startup code in the read-only memory cannot be modified, and only the chip that cannot be started can be scrapped, which increases the production cost of the chip. SUMMARY OF THE INVENTION [0003] The embodiments of the present application provide a chip, an electronic device, and a chip startup method, which can reduce the production cost of th...

AI Technical Summary

Problems solved by technology

Therefore, once there is an error in the boot code written in the read-only memory, such as an error in the configuration information, the chip will not be able to start

However, the startup code in the read-only memory cannot be modified, and the chip that cannot be started can only be scrapped, which increases the production cost of the chip

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