级联工作模式,是spi完成对master 和slave的固件配置后,正常工作时,仅需要spi与master通信吗?slave芯片的工作仅需要40MHz时钟、本振信号和触发信号吗?
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AWR2243 master给slave提供时钟和帧同步信号等,不是通过SPI口去和slave通信的。AWR2243 master和slave都是通过SPI口和host如TDAxxx板子通信的。可以看一下下面级联文档。
https://www.ti.com/lit/an/swra574b/swra574b.pdf