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Continuous sine wave to an Input Dai



		

			

									
					    Hermione
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jun 28, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    		            		        
    Category: Software
    
    		        		            		    
    Product Number:  NA 
    
    		        		        		        
    Software Version: CCES 2.9
    
    		    		    	
			
      

    • Dear Team ,
      • 

    

    

    I would like to configure DMA in Array descriptor mode .
    

    Can anyone help me with  a code snippet .
    

    

    Also what is the difference between configuring a descriptor list and descriptor array .
    

    Any advantage / disadvantages
    

    

    

    Regards,
    

    Hermione
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			


				
	









	
      
	

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      •  Analog Employees  
      
            
			                            
                        
                on Jun 29, 2022 10:19 AM
            
            
					
      
	
      

		
		
      
					
      Hi Hermione,
      

      Please refer the MemCopyArrayMode project in the below BSP path: 
      Analog Devices\ADSP-SC5xx_EZ-KIT_Lite-Rel2.0.0\ADSP-SC5xx_EZ-KIT\Examples\services\mdma
      

      You can download BSP from below link: download.analog.com/.../ADI_ADSP-SC5xx_EZ-KIT_Lite-Rel2.0.2.exe
      

      Array Mode:-
      In this mode, the descriptor sets do not contain further descriptor pointers. Software writes the initial descriptor-pointer value, which points to an array of descriptors. This operation assumes that the individual descriptors reside next to each other and assumes that their addresses are known.
      

      List Mode:-
      In this flow mode, multiple descriptors form a chained list in which each descriptor set contains a pointer to the next descriptor set, allowing greater flexibility in memory layout options. When the channel fetches the descriptor set, the operation loads this pointer value into the next descriptor pointer register of the DMA channel.
      

      For more information please refer the DMA operating modes topic in hrm manual.
      

      If it is not fulfill your requirement, please share us more information about your processor and application details. It will help us to guide you further.
      

      Regards,
      Santhakumari.K
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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