ESP32-S3的PSRAM接口不知道行不行，挂个fpga在外面代替RAM
如果频率相同但相位不同，相位稳定的话，可以通过采样参考信号进行校准，图中是ESPARGOS的方案。
在ESPARGOS One的说明书中"How It Works"中"Synchronization Principle"小节讲述了其原理，原文如下：
"All 8 sensor ESP32 chips share acommon 40MHz reference clock. Theremainingper sensor LO phase ambiguity is corrected via the 2.4GHz phase reference distributed over PCB traces of known lengths. pyespargos estimates these offsets during a cali bration step."