Rolling code burning method and system for universal one-time programmable chip

Abstract

The invention provides a rolling code burning system and method for a universal one-time programmable chip. The system comprises one or more universal one-time programmable chips, an upper computer and a burner, wherein the upper computer sets rolling code parameters, and generates a burning instruction based on the set rolling code parameters; the rolling code parameters include a designated value, and a minimum value, a maximum value and a step value of the rolling code; the burner is provided with an initial firmware program of the universal one-time programmable chip; and the burner receives the burning instruction from the upper computer, analyzes the burning instruction to obtain the designated value as well as the minimum value, the maximum value and the step value of the rolling code, generates a current value of the rolling code, forms a new firmware program according to the designated value, the current value of the rolling code and the initial firmware program, and burns the new firmware program to the universal one-time programmable chip. The rolling code can be burnt for the universal one-time programmable (OTP) chip by modifying software of the burner, so that the product development cycle is greatly shortened.

Description

【Technical field】 [0001] The invention relates to the field of programming with a one-time programmable (OTP) chip, in particular to a method and system for programming a rolling code of a general one-time programmable chip. 【Background technique】 [0002] Universal one-time programmable (OTP) chips are more and more widely used in existing electronic products, ranging from small household appliances to electrical appliances and industrial control products. However, due to cost requirements, traditional general-purpose one-time programmable (OTP) chips generally cannot create a dedicated area inside to generate functions similar to chip serial numbers, and there is a great demand for such applications in the application market , from the early password locks to many IoT products today, there is a great application demand for the uniqueness of their products. [0003] To solve this problem, the easiest way is to add EEPROM (Electrically Erasable Programmable Read-Only Memory...

AI Technical Summary

Problems solved by technology

[0003] To solve this problem, the easiest way is to add EEPROM (Electrically Erasable Programmable Read-Only Memory) to the existing products, and program the serial number of the EEPROM to complete the serialization of the product, but this will increase the cost and require complex settings. Peripheral circuits

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