SPI：FIFO_FULL通过DMA读出FIFO后，中断不复位

你好！我是新来的PsoC人，我有以下问题：
一个SPI从接收4个16位值，并触发FIFO全中断。这个中断触发一个DMA，它读出了在下面的源代码中的数据：SPISYRXDATAYPTR。
DMAAS每突发4字节，长度2000和每个突发请求＝1；
这工作，前4个值在缓冲阵列中被正确保存，但问题是，FIFO完全中断保持高并且不返回到零。一个新的传输是不可能的了。
我已经尝试使用SPISA Read RxDATA（）读取SPI从外部的数据。在这种情况下，FIFO全中断返回到零。
我错过什么了吗？在DMA读出4个值后，如何让FIFO全中断返回到零？
谢谢！



     以下为原文
  Hello! I am new in PsoC and i have following problem:
    A SPI - Slave receives 4 16-bit values and triggers an FIFO-Full interrupt. This interrupt triggers a DMA , which reads out the data out of the FIFO using following sourceadress: SPIS_RXDATA_PTR.
    The DMA has 4 Bytes per Burst, length 2000 and request per burst = 1;
    This works, the first 4 values gets saved correctly in a buffer-array, but the problem is, that the FIFO-Full interrupt stays high and doesn't return to zero! A new transmission is not possible anymore.
    I have tried reading the data out of the SPI-Slave using SPIS_ReadRxData(). In this case the FIFO-Full interrupt returns to zero.
    Do i miss anything? How is it possible to let the FIFO-Full interrupt return to zero after reading out 4 values by the dma?
     
    Thanks a lot!