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LMK04828: 多块RFSOC同步时钟结构

Part Number: LMK04828

我有两块RFSOC(ZU47DR)板卡,时钟芯片使用LMK04828,想要实现两块板卡的采样同步。根据现有的设备,构建如下图所示时钟网络,经过尝试,两块板的ADC采样并不是同步的。请问是硬件时钟结构有问题还是我软件配置有问题?

两块板卡的LMK04828配置如下:

SYSREF生成流程参照数据手册9.3.2.1.1

RFSOC多片同步参考RFSOC手册PG269中MTS Sequencing下给出的流程, use case 2