CC2640R2F的SPI如何不使用CS管脚也能进行通信?两个CC2640R2F四线制的MOSI、MISO、CS、CLK已成功通信,但是我们到时候从机的没有CS管脚的,该如何取消CS管脚的作用?
SDK:simplelink_cc2640r2_sdk_3_20_00_21
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两个CC2640主设备\从设备的我已全部设置成csnPin = PIN_UNASSIGNED,但是这样测试了一下没法通信