Optical module and debugging and downloading method thereof

Abstract

The invention provides an optical module. The optical module comprises a micro-control unit, a golden finger, a debugging downloading circuit and a chip to be debugged, the debugging downloading circuit comprises a downloading circuit and / or a debugging circuit; the downloading circuit comprises a first electronic switch and a first resistor; the micro-control unit is electrically connected with the first reserved pin of the golden finger through the first electronic switch; the micro-control unit is electrically connected with the golden finger through the first resistor and is also electrically connected with a first enabling pin of the first electronic switch; the debugging circuit comprises a second electronic switch and a second resistor; the micro-control unit is electrically connected with the second reserved pin of the golden finger through the second electronic switch; and the micro-control unit is electrically connected with the golden finger through the second resistor and is also electrically connected with a second enabling pin of the second electronic switch. According to the invention, the pins are reserved to be matched with the circuit construction and cooperative use of the electronic switch and the resistor, so that the debugging and downloading do not need shell dismounting, wire flying and additional downloading clamp manufacturing, and the use is more convenient and economical.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical module and a debugging and downloading method thereof. Background technique [0002] With the popularization of 4G networks at home and abroad and the promotion of 5G networks, there is an increasing demand for high-speed optical modules in the fields of metropolitan area networks, data centers, and cloud computing. At present, high-end optical modules such as 400G QSFP-DD optical modules and 100G CFP2 optical modules use DSP (or CDR) to optimize high-speed signal processing. In addition, the high-speed Driver (driver) and TIA (transimpedance amplifier) ​​connected to the DSP or CDR drive optical devices such as high-speed VCSEL (laser) and PD (photodiode) respectively. Among them, the DSP (or CDR) chip needs complex debugging and configuration before leaving the factory. [0003] A common practice in the prior art is that the host computer configures a...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it needs to make a special fixture, and the shell needs to be disassembled when downloading, and it is not compatible with different products.

There is another method, that is, to download through the IIC (Inter-Integrated Circuit, integrated circuit communication bus) interface of the module. This method does not need to make a fixture, but the download speed is slow. The high-end optical module DSP (or CDR) contains its own firmware and MCU firmware download time can be up to 30 minutes

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