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ADSP-21593 Production
Reaching speeds of up to 1 GHz, the ADSP-2159x processors are members of the SHARC® family of products. The ADSP-2159x processor is a dual-SHARC+® core...
ADSP-21593 on Analog.com

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Dma copy between SPORTs

		
	
				

			

									
					    LinSiyu
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Aug 23, 2024 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  ADSP-21593  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hello guys,
    

    I'm now having a setup with ADSP 21593 and A2B device, the SPORT 1A is set as TDM TX and SPORT 1B is set as TDM RX, and they all have a DMA list, when we are trying to apply a loopback feature, we want the data from SPORT1B directly going to the SPORT1A, the way we are using now is use a while(1) loopback and copy the data from buffer RX to buffer TX, but this will block the main function. Is there an non-blocking method to copy the data from one DMA to the other one? the TDM config are all the same one. by the way ,we try to let the adi_sport_DMATransfer of TX using the RX's DMA, but it seems not work.
    

    //SPORT CONFIG
    

    

        /* SPORT return code */
    

        ADI_SPORT_RESULT    eResult;
    

    

        /* Open the SPORT Device 1A */
    

        eResult = adi_sport_Open(SPORT_DEVICE_1A,ADI_HALF_SPORT_A,ADI_SPORT_DIR_TX, ADI_SPORT_MC_MODE, SPORTMemory1A,ADI_SPORT_MEMORY_SIZE,&hSPORTDev1ATx);
    

        CHECK_RESULT(eResult);
    

        /* Open the SPORT Device 1B*/
    

        eResult = adi_sport_Open(SPORT_DEVICE_1B,ADI_HALF_SPORT_B,ADI_SPORT_DIR_RX, ADI_SPORT_MC_MODE, SPORTMemory1B,ADI_SPORT_MEMORY_SIZE,&hSPORTDev1BRx);
    

        CHECK_RESULT(eResult);
    

    

        /* Configure the data,clock,frame sync and MCTL of SPORT Device 1A*/
    

        eResult = adi_sport_ConfigData(hSPORTDev1ATx,ADI_SPORT_DTYPE_SIGN_FILL,15,false,true,false);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_ConfigClock(hSPORTDev1ATx,0,false,true,false);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_ConfigFrameSync(hSPORTDev1ATx,512,true,false,false,false,false,false);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_ConfigMC(hSPORTDev1ATx,0u,15u,0u,true);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_SelectChannel(hSPORTDev1ATx,0u,15u);
    

        CHECK_RESULT(eResult);
    

    

        /* Configure the data,clock,frame sync and MCTL of SPORT Device 1B*/
    

        eResult = adi_sport_ConfigData(hSPORTDev1BRx,ADI_SPORT_DTYPE_SIGN_FILL,15,false,true,false);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_ConfigClock(hSPORTDev1BRx,0,false,true,false);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_ConfigFrameSync(hSPORTDev1BRx,512,true,false,false,false,false,false);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_ConfigMC(hSPORTDev1BRx,0u,15u,0u,true);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_SelectChannel(hSPORTDev1BRx,0u,15u);
    

        CHECK_RESULT(eResult);
    


    

        /* Register SPORT Callback function */
    

        eResult = adi_sport_RegisterCallback(hSPORTDev1ATx,SPORTCallback,NULL);
    

        CHECK_RESULT(eResult);
    

        /* Register SPORT Callback function */
    

        eResult = adi_sport_RegisterCallback(hSPORTDev1BRx,SPORTCallback,NULL);
    

        CHECK_RESULT(eResult);
    

    

        /* Submit the first buffer for Rx.  */
    

        eResult = adi_sport_DMATransfer(hSPORTDev1BRx,&iRX_LIST_1_SP1B,(DMA_NUM_DESC),ADI_PDMA_DESCRIPTOR_LIST, ADI_SPORT_CHANNEL_PRIM_SEC);
    

        CHECK_RESULT(eResult);
    

        eResult = adi_sport_DMATransfer(hSPORTDev1ATx,&iTX_LIST_1_SP1A,(DMA_NUM_DESC),ADI_PDMA_DESCRIPTOR_LIST, ADI_SPORT_CHANNEL_PRIM_SEC);
    

        CHECK_RESULT(eResult);
    

    

    //DMA COPY
    

    

    

    void SPT1_DMA_copy()
    

    {
    

        memcpy(int_SP1ABuffer1,int_SP1BBuffer1,sizeof(int_SP1ABuffer1));
    

        memcpy(int_SP1ABuffer2,int_SP1BBuffer2,sizeof(int_SP1ABuffer2));
    

    }
    

    //CALL DMA COPY
    

    

    

    while(1)
    

    {
    

        SPT1_DMA_copy();
    

    }
    

    

    

    

    

    
			
    
			
									
		                             
                        

    
    
                                            
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