Data calibration device and method for storing and writing calibration data

Abstract

The invention relates to a data calibration device and a method for storing and writing calibration data thereof. When the chip to be calibrated is powered on, the first controlled switch module is turned on, and the read-write control module writes the calibration data stored in the OTP memory into the register to be written. In the method, after the calibration data is written into the register to be written, the first controlled switch module is turned off and the second controlled switch module is turned on, and the bus control interface recovers the control right. Based on this, there is no need to understand the reading and writing process and data structure of the OTP memory, and there is no need for the control of the host computer. The reading and writing control module can automatically write the calibration data into the register to be written, and complete the calibration of the chip to be calibrated to reduce chip calibration. degree of difficulty and complexity. At the same time, through the calibration data storage and writing method of the data calibration device, when reading data, the corresponding calibration data can be accurately obtained according to the records of the stored data, reducing the requirements for OTP memory and improving the fault tolerance rate of data storage.

Description

technical field [0001] The invention relates to the field of data processing methods, in particular to a data calibration device and a method for storing and writing calibration data. Background technique [0002] As a collection of various miniaturized circuits, a chip is the core of data processing for various devices. Various common chips, such as temperature chips, power chips, or analog-to-digital conversion chips, need to be calibrated before use, that is, calibrated through the control register. Generally, the calibration data will be stored in an OTP (One Time Programmable, one-time programmable) memory. Wherein, the calibration data includes register address and register data. During the calibration process, the register address needs to be read first, and then the register data corresponding to the register address is written into the register corresponding to the register address. After all the register data is written into the register, a status flag is output ...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to use the traditional chip calibration method, the chip calibration personnel not only need to use the host computer, but also need to understand the read and write process and data structure of the OTP memory, which increases the complexity and inconvenience of chip calibration. Provide A data calibration device and calibration data storage and writing method thereof

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