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我使用28377s做电机控制，PWM触发AD同时触发DMA-SPI通信，AD完成后进入到AD中断中，我想查询下DMA-SPI是否完成了，请问是查哪个标志位？DMA-SPI实际上是有两路DMA,一路给SPI TX由PWM触发，一路是给SPI RX由SPI RX触发。我现在想在AD中断中判断SPI-RX是否完成了。
