An automatic parameter setting and testing method of ux3328sfp optical module based on fpga

Abstract

The invention relates to a method for automatically setting and testing the parameters of a UX3328 SFP optical module based on a FPGA. The method comprises a parameter setting step in which the embedded soft core of the FPGA sets the parameters of the target UX3328 through the IIC bus of the target UX3328; and a testing step in which the FPGA generates a pseudorandom sequence and transmits a pseudorandom sequence code stream through a high-speed transceiver, the pseudorandom sequence code stream is transmitted to the target UX3328 via a standard UX3328 and then is returned back to be received by the FPGA, the FPGA compares the transmitted pseudorandom sequence with the received pseudorandom sequence and determines the bit error rate of the target UX3328 according to a comparative result. The FPGA is connected with a computer, the standard UX3328 and the target UX3328 to be set. In UX3328 SFP optical module production, when each module is produced, only the enable switch of the system is required to be controlled, the system automatically import chip initial data from the standard UX3328, and then automatically sets and tests the optical power, the extinction ratio, the sensitivity, the alarm point, the calibration slope and other parameters of the target UX3328.

Description

technical field [0001] The present invention relates to the technology of automatic parameter setting and automatic testing of SFP optical module, more specifically, relates to an automatic parameter setting and testing method of UX3328SFP optical module based on FPGA. Background technique [0002] In the era of high-speed information dissemination, optical modules are an important part of optical communication equipment. The continuous development of the optical communication market will directly drive the continuous development of the optical module market. SFP photoelectric transceiver module (referred to as SFP optical module) is an innovation in optical network interface technology. Its volume is reduced by half compared with the GBIC module, and the interface can be more than doubled on the panel of the same size, which increases the port density of the circuit and reduces the system cost of each port. SFP optical modules also support live plugging and unplugging func...

AI Technical Summary

Problems solved by technology

[0004] Taking the UX3328SFP optical module as an example, in the production of the UX3328SFP optical module in the existing technology, the optical power, extinction ratio, alarm point and test sensitivity of each module need to be set for each module, which requires manual operation and recording, which consumes a lot of Human and Time Resources

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