A firmware fast loading method and circuit of a photoelectric DSP chip and an optical module

By employing a two-level boot scheme and a method of parsing information from packaged firmware, the problems of slow loading speed and poor compatibility of optoelectronic DSP chips were solved, achieving fast loading and improved compatibility while reducing hardware costs.

CN120743366BActive Publication Date: 2025-12-30CORE TREND (ZHUHAI) TECH CO LTD
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Patent Information

Application Number
CN202511269582.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2025-12-30
Estimated Expiration
2045-09-08

AI Technical Summary

Technical Problem

Existing optoelectronic DSP chips have slow firmware loading speed and poor compatibility. Existing solutions suffer from low firmware transmission rate and compatibility issues, and cannot meet the requirements for fast startup.

Method used

A two-level boot scheme is adopted. The DSP unit first downloads the smaller first information, and then downloads the larger second information based on the first information, so as to realize the fast loading of the target firmware. By encapsulating the firmware parsing information in the first information, the development of the MCU unit's control program is simplified, and the compatibility of different DSP units is supported.

Benefits of technology

This has improved firmware loading speed, reduced startup time to within 0.5 seconds, lowered hardware costs, and enhanced MCU program compatibility and product competitiveness.

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Abstract

The application provides a firmware fast loading method and circuit of an optical-electric DSP chip and an optical module. The method is applied to a DSP unit which is installed in the optical module and is used for executing a starting program. The DSP unit is electrically connected with an MCU unit of the optical module and obtains loading information of the MCU unit. The method comprises the following steps: obtaining first information and obtaining second information according to the first information. The file size of the first information is smaller than that of the second information, and the first information contains communication parameter information used for obtaining the second information. The second information contains target firmware of the DSP unit. The application can improve the loading speed of the firmware of the DSP chip, reduce the development work of the control program of the MCU and has good compatibility on the basis of saving hardware cost.
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