OTP register data correction method and device, computer equipment and storage medium

Abstract

The invention relates to an OTP register data correction method and device, computer equipment and a storage medium. The method in one embodiment comprises: acquiring target write-in data, and obtaining target verification data corresponding to the target write-in data through calculation of an ECC auxiliary tool; obtaining first data stored in the current address in the OTP register, and performing calculating by the ECC auxiliary tool to obtain first verification data corresponding to the first data; enabling all data positions, corresponding to the data bits 0 in the first verification data, in the target verification data to be zero, and obtaining second verification data; enabling all data positions, corresponding to the data bits 0 in the first data, in the target write-in data to bezero, and obtaining second data; carrying out verifying by adopting an ECC verification algorithm according to the second data and the second verification data to obtain output data; and when the output data is equal to the target write-in data, obtaining the data address of the target write-in data as the current address, and correcting the first data stored in the current address according to the target write-in data.

Description

technical field [0001] The present application relates to the field of data processing, in particular to an OTP register data correction method, device, computer equipment and storage medium. Background technique [0002] The OTP (One Time Programmable, one-time programmable) register is a kind of memory of the single-chip microcomputer. After the program is burned into the single-chip microcomputer, it cannot be changed or cleared. In order to ensure the reliability and stability of the data stored in the register, an ECC (Error Correcting Code, error checking and correction) algorithm is usually introduced. ECC is a technology capable of implementing error checking and correction. In the embedded system, all codes and system data are stored in the FLASH chip or OTP register. The feature of the FLASH chip is that it can be erased and written many times, and the data will not be lost when the power is off. [0003] The OTP register is very special, it can only be programmed...

AI Technical Summary

Problems solved by technology

That is to say, the traditional method has a one-time limit for data programming in the OTP register, and data correction cannot be realized.

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