Hello,guys!
i have problems with MDMA transfer.
I take MDMA CrossCore example project ,and do changes towards ARM direction of data flow. So initialisation is the same(MCAPI addresses and SID of interrupt).
I have complex problem with it:
1. When i run project on debug with ICE-1000,and run DSP core sending data with MDMA, ARM core does not trigger. But when i do step by step execution of MDMA sending ARM core triggers, i can see data in DDR ARM zone buffer etc
2. When i run both cores eventually i get ard fault error
Enabled interrupt with ID (IID) 0x7fffffff raised when it has no handler registered.
Here is code snippets from project:
MDMA open in DSP proj:
ADI_DMA_RESULT eResult = ADI_DMA_SUCCESS;
//*************************************************************************
// Open MDMA channel
//*************************************************************************
DBG_MSG ( "Core1: Opening MDMA channel\n");
eResult = adi_mdma_Open (MEMCOPY_STREAM_ID, &MemDmaStreamMem[0],
&hMemDmaStream, &hSrcDmaChannel, &hDestDmaChannel,
NULL,
NULL);
if (eResult != ADI_DMA_SUCCESS)
{
DBG_MSG ("Failed to open MDMA stream, Error Code: 0x%08X\n",
eResult);
return ARM_LINK_ERROR;
}
//*************************************************************************
// Configure MDMA channel
//*************************************************************************
adi_mdma_EnableChannelInterrupt (hDestDmaChannel, false, false); // Disable the MDMA destination transfer complete interrupt
adi_mdma_GetChannelSID (hDestDmaChannel, &nSid_SHARC1_Master); // Get the channel SID for the MDMA destination complete interrupt
/*add sharc int offset*/
//adi_sec_SetPriority(nSid_SHARC1_Master,ADI_SEC_MAX_INT_PRIO);
nSid_SHARC1_Master += SHARC_INT_OFFSET;
//adi_sec_SetCoreID (nSid_SHARC1_Master, ADI_SEC_CORE_0);
adi_mdma_EnableChannelInterrupt (hSrcDmaChannel, true, true); // Enable the MDMA source transfer complete interrupt
DBG_MSG ( "\n Destination Channel interrupt SID: \t%08X\n ",
(unsigned int) nSid_SHARC1_Master);
#if 1
eResult = adi_dma_UpdateCallback (hSrcDmaChannel, MemDmaCallback, hMemDmaStream); // Register source transfer complete interrupt
/* IF (Failure) */
if (eResult != ADI_DMA_SUCCESS)
{
DBG_MSG ("Failed to set DMA callback, Error Code: 0x%08X\n",eResult);
return ARM_LINK_ERROR;
}
#endif
install interrupt on ARM slave:
adi_int_InstallHandler (nSID_SHARC_Master, DataTransferFromSHARCComplete, NULL, true);
I can see that MCAPI send me proper interrupt SID(with offset for ARM)
Callback on ARM with RTOS:
void DataTransferFromSHARCComplete(uint32_t SID, void *pCBParam)
{
// Save the CPU registers
CPU_SR_ALLOC();
// Protect a critical section
CPU_CRITICAL_ENTER();
// Make the kernel aware that
// the interrupt has started
OSIntEnter();
CPU_CRITICAL_EXIT();
// Handle the interrupt
static uint32_t test=0;
test= BufferFromSHARC1[0];
BufferFromSHARC1[0]=0;
// Make the kernel aware that
// the interrupt has ended
OSIntExit();
}
What i am missing? help me please.
