谁在调用CyU3PDmaChannelSetupSendBuffer时拥有内存？

如果Ireceive a DMAbuffer从GPIF（即我得到回调），我可以使用DMAbuffer通过它到CYU3PDMACHANNETSUPUSTEN缓冲区吗？
我能创建一个“假”CYU3PDMABUFEFART，其中缓冲区指向另一个DMA通道正在使用的内存中的位置吗？
例如，我可以调用CYU3PDMACHANNETGETBuffic来获得一个刚刚完成的DMATANSFER的CYU3PDMABUFEFART，然后将其传递给CYU3PDMACHANNETSUPUSTEnEdfRAMP，以执行相同的缓冲区，而没有内存复制到输出的DMAChank？
同样，我可以通过使用CYU3PMEMOLARC分配我自己的CYU3PDMABUFEFART，然后填充字段以使其看起来像CYU3PDMABUFFER？
CYU3PDMABUFFEFRYT*MYYMAD=（CYU3PDMABUFEFURTH*T*）CYU3PMEMOLATC（SIZEF（CYU3PMEMOLATC））；
MyAdDMA.Puffel= p；/*内存中的某个位置，它是另一个信道上的DMA存储器的一部分*
计数＝1；
MyIdDMA.Stase= LangthytoTyTrime//*内存量传输*//
MyydMA.Stase=？？？？/不确定应该在这里，也许CYU3PDMAODEDET*T/



     以下为原文
  If I receive a DMA buffer from the GPIF (that is I get a callback) can I use the DMA buffer by passing it to CyU3PDmaChannelSetupSendBuffer?
    Can I create a "fake" CyU3PDmaBuffer_t where the buffer field points at a location in memory that another DMA channel is using?
    For example can I call CyU3PDmaChannelGetBuffer to get a CyU3PDmaBuffer_t for a DMA transfer that just completed, and then pass that to CyU3PDmaChannelSetupSendBuffer to commit the same buffer with no memory copying to the outgoing DMA channel?
    Likewise can I allocate my own CyU3PDmaBuffer_t by using a CyU3PMemAlloc and then populate the fields to make it looks like a CyU3PDmaBuffer_t?
    CyU3PDmaBuffer_t *my_dma = (CyU3PDmaBuffer_t *)CyU3PMemAlloc(sizeof(CyU3PMemAlloc));
    my_dma.buffer = p; /* some location in memory that is part of a dma memory on another channel */
    my_dma.count = 1;
    my_dma.size = length_to_transfer; /* amount of memory to transfer */
    my_dma.status = ???; /* not sure what should go here, maybe CyU3PDmaMode_t */