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cc26xx adc dma 的问题

请问:在使用adc的dma时,配置完成之后,在INT_AUX_ADC对应的中断服务函数中,怎么区分此次中断的产生是因为

ADC DMA transfer done, ADC FIFO underflow, and ADC FIFO overflow 中的哪一个触发的?

注册INT_AUX_ADC对应的中断服务函数代码:

IntRegister(INT_AUX_ADC , WSN_AdcDmaIsr);
IntEnable(INT_AUX_ADC);