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请教28335的SPI数据发送结束的问题



请问一下,28335里面有数据发送结束的标志么?我指的是结束移出的标志。

 

貌似有SPISTS里面有一个SPI INT FLAG可以标志完整接收和完整发送字符的,但是试了一下,不起作用,一直都是0。后来把SPI INT ENA置1后,情况还是一样