基于国产化FMQL作为主芯片设计通信设备时,往往需要产生多路高速时钟供其他模块使用。基于FMQL的片内资源可以产生若干路时钟,但是存在耗费PL资源、时钟路数不够、时钟频率不够高、配置不够灵活等问题。随着集成电路的发展,选用专用时钟芯片可有效解决这些问题。本文使用SI5341和GM4526两款时钟芯片实现FMQL平台扩展多路高速时钟的方法。本文介绍了方法的系统设计、硬件设计、驱动设计,实验验证了方法的稳定性、实用性、灵活性。基于SI5341和GM4526实现FMQL平台扩展多路高速时钟的方法稳定、实用、灵活,可为同类需求提供参考。

The communication device,based on domestic FMQL as the main chip,needs to generate multiple high-speed clocks for other modules.The on-chip resources based on FMQL can generate several clocks,but there are some problems such as PL resource consumption,insufficient clock number,insufficient clock frequency,and insufficient flexibility in configuration.With the development of integrated circuits,using dedicated clock chips can effectively solve these problems.This paper proposes a method utilizing SI5341 and GM4526 clock chips to implement extended multi-channel high-speed clocks on the FMQL platform.The system design,hardware design and driver design of the method are introduced in this paper.The stability,practicability and flexibility of the method are verified by experiments.The method based on SI5341 and GM4526 to implement the extended multi-channel high-speed clock on the FMQL platform is stable,practical and flexible,providing reference for similar requirements.