C6678多核使用EDMA搬移数据失败的问题！！！！

- Polls on IPR bit 0 (Since TCC for PING is 0)
- Clear the pending bit
- Manually triggers the channel 'channelNum' (This should be PONG)
- Polls on IPR bit 1 (Since TCC for PONG is 1)

do {
/* Poll on interrupt bit 0 */
CSL_edma3GetHwStatus(hModule,CSL_EDMA3_QUERY_INTRPEND,&regionIntr);
} while (!(regionIntr.intr & 0x1));

/* Clear interrupt bit 0 */
if (CSL_edma3HwControl(hModule,CSL_EDMA3_CMD_INTRPEND_CLEAR, &regionIntr) != CSL_SOK)
{
printf("Error: EDMA clear interrupt bit 0 command is failed\n");
return -1;
}

/* Mapping channel 0 to event queue 1 */
if (CSL_edma3HwChannelSetupQue(hChannel,CSL_EDMA3_QUE_1) != CSL_SOK)
{
printf("Error: EDMA channel setup queue is failed\n");
return -1;
}

/* Manually trigger the channel */
if (CSL_edma3HwChannelControl(hChannel,CSL_EDMA3_CMD_CHANNEL_SET,NULL) != CSL_SOK)
{
printf("Error: EDMA channel set command is failed\n");
return -1;
}

regionIntr.region = regionNum;
regionIntr.intr = 0;
regionIntr.intrh = 0;

/* Poll on interrupt pend bit 1 */
do {
CSL_edma3GetHwStatus(hModule,CSL_EDMA3_QUERY_INTRPEND,&regionIntr);
} while (!(regionIntr.intr & 0x2));
上面是截取的edma_test中的一段代码，可以参考修改。使不同的通道对应不同的IPR[TCC].

您好，我的代码是这样的，没有进行ping pong了，一次只往一个地址传输，麻烦您帮忙看一下
int Edma3_SYNC_AB(int aCnt, int bCnt, int cCnt, int srcBidx, int dstBidx, float* srcaddr, float* dstaddr, int instNum, int channelNum)
{
CSL_Edma3Handle hModule;
CSL_Edma3Obj edmaObj;
CSL_Edma3ParamHandle hParamPing;

CSL_Edma3ChannelObj chObj;
CSL_Edma3CmdIntr regionIntr;
CSL_Edma3ChannelHandle hChannel;
CSL_Edma3ParamSetup myParamSetup;
CSL_Edma3Context context;
CSL_Edma3ChannelAttr chAttr;
CSL_Status status;

int srcCidx=0;
int dstCidx=0;

CSL_edma3Init(&context);
/* Open the EDMA Module using the provided instance number */
hModule = CSL_edma3Open(&edmaObj, instNum, NULL, &status);
/* Channel open */
chAttr.regionNum = CSL_EDMA3_REGION_GLOBAL;
chAttr.chaNum = channelNum;
hChannel = CSL_edma3ChannelOpen(&chObj, instNum, &chAttr, &status);

if(!instNum)
{
/* For first EDMA instance (通道控制器CC0) there are only 2 TCs(传输控制数) and
* 2 event queues （队列事件数）
* Modify the channel default queue setup from 0 to 1
*/
if (CSL_edma3HwChannelSetupQue(hChannel,CSL_EDMA3_QUE_1) != CSL_SOK)
{
printf ("Error: EDMA channel setup queue failed\n");
return -1;
}
}
else
{
/* For EDMA instance 1 and 2 maximum of 4 TCs and 4 event queues are supported
* Change Channel Default queue setup from 0 to 3
*/
if (CSL_edma3HwChannelSetupQue(hChannel,CSL_EDMA3_QUE_0) != CSL_SOK)
{
printf ("Error: EDMA channel setup queue failed\n");
return -1;
}
}

CSL_edma3MapDMAChannelToParamBlock(hModule,channelNum,channelNum);//这里把不同的channel映射到不同的PaRAM

hParamPing = CSL_edma3GetParamHandle(hChannel,channelNum,&status);//这里设置不同的PaRAM

myParamSetup.option = 0x0010000C;
myParamSetup.srcAddr = (Uint32)srcaddr;
myParamSetup.aCntbCnt = CSL_EDMA3_CNT_MAKE(aCnt, bCnt);
myParamSetup.dstAddr = (Uint32)dstaddr;
myParamSetup.srcDstBidx = CSL_EDMA3_BIDX_MAKE(srcBidx,dstBidx); //这个地方的BIdx的单位是字节
myParamSetup.linkBcntrld= 0x0000ffff;
myParamSetup.srcDstCidx = CSL_EDMA3_CIDX_MAKE(srcCidx,dstCidx);
myParamSetup.cCnt = cCnt;

CSL_edma3ParamSetup(hParamPing,&myParamSetup);
/* Interrupt enable (Bits 0-1) for the global region interrupts */
regionIntr.region = CSL_EDMA3_REGION_GLOBAL;
regionIntr.intr = 0x1; //多核同时使用的时候这个地方也需要修改吗？
regionIntr.intrh = 0x0;

CSL_edma3HwControl(hModule,CSL_EDMA3_CMD_INTR_ENABLE,&regionIntr);
/* Trigger channel 启动发送*/
CSL_edma3HwChannelControl(hChannel,CSL_EDMA3_CMD_CHANNEL_SET,NULL);
regionIntr.region = CSL_EDMA3_REGION_GLOBAL;
regionIntr.intr = 0x0;
regionIntr.intrh = 0x0;
do
{
CSL_edma3GetHwStatus(hModule,CSL_EDMA3_QUERY_INTRPEND,&regionIntr);
}
while (!(regionIntr.intr & 0x1));//多核同时运行时有时候会卡在这个地方

CSL_edma3HwControl(hModule,CSL_EDMA3_CMD_INTRPEND_CLEAR,&regionIntr);

CSL_edma3ChannelClose(hChannel);

CSL_edma3Close(hModule);

return 0;
}

shine，TCC是在myParamSetup.option = 0x0010000C;中被设定的吗？如果是的话那么我所有的channel使用的都是同一个TCC，我需要怎么修改呢？

不同的param.option里的TCC设置不同的值，这样避免多个channel同时置上相同的IPR bit。

shine,我昨天尝试使用shadow region，每一个核选择不同的region，然后在DRAE寄存器中只将使用到的通道位置一，每一个核选择的TCC的值也不同，这样子是不是可以实现多核同时使用EDMA，不会出现同时对IPR置位清除的操作

shine，这样做是可以避免相同的IPR bit被同时置位，但是当有一个核的channel使用
CSL_edma3HwControl(hModule,CSL_EDMA3_CMD_INTRPEND_CLEAR, &regionIntr)对IPR寄存器的值进行清除后，会导致另外一个核的程序卡在
do
{
CSL_edma3GetHwStatus(hModule,CSL_EDMA3_QUERY_INTRPEND,&regionIntr);//读取IPR寄存器
}
while (!(regionIntr.intr & 0x2));这个位置，这有什么办法解决吗？