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How to divide the frame operation on 21489



		

			

									
					    lichunhao
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 14, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    The official routine 21489-I2S C Sampled-Based Talkthru is to process the signal point by point, how to change it into frame processing, for example, 10 points are used as a frame, and some operation is performed every 10 points.It is necessary to ensure that this operation is carried out within 10 points of time without being interrupted. Another question is that the sampling frequency in this routine is 48khz, how to change it to 16khz
    
									
			        
		
    

				
						
        

		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



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                on Jan 27, 2022 12:16 AM
            
            
												
						in reply to ADIApproved
					
									
        
	
        

		
		
        
					
        My program needs to do some arithmetic operations on the audio data of 128 points every 128 points, such as FFT of 128 points. The operation of the data from points 1 to 128 needs to be performed in the next 128 points, that is, points 129 to 256, but if it is modified directly in the routine, this operation will be interrupted at the end of point 129，even if the operation has not yet completed. 
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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        •  Analog Employees  
        
            
						
                            
            
            				
            
                on Feb 1, 2022 11:43 PM
            
            
												
						in reply to lichunhao
					
									
        
	
        

		
		
        
					
        Hi,

        I would suggest to refer examples available on VisualDSP 5.1.2 installation path as given below,
        C:\Program Files (x86)\Analog Devices\VisualDSP 5.1.2\214xx\Examples\ADSP-21489 EZ-Board

        If still you are facing issues, can you please explain your application in detail

        Regards,
        Anand Selvaraj.
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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