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Simple audio in-out code for the ADSP-BF706 EZ-KIT



		

			

									
						PatrickG
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Dec 15, 2016 
				
			
			
		


				
		

		    		    
		    
		    	
			
I have an audio in-out program in C for the ADSP-BF706 EZ-KIT mini, about 80 lines in length. It's simple and very easy to understand. It's also completely self-contained - it doesn't use any of the header files that the "TalkThrough_BF706Mini.c" program uses (supplied with the kit). It includes a basic TWI driver, SPORT0 set up and configuration routine for the on board codec (ADAU1761). With some simple modifications it can be used for filtering, both FIR and IIR. The file is attached. All welcome to use free.

 
PatrickG

								


				
							BF706_audio_inout.pdf
					
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	














	

	

					



			








	
	
	
	



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                on Mar 4, 2020 3:39 PM
            
            
												
						in reply to UweS
					
									
    
	
    

		
		
    
					
    Hello UweS,
    

    I would like to thank you for your code. This is a good example
     at the beginning of my adventure with DSP and BF706.

    

    Andrew
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
				
						
				
				
		
		
    
			
		
    
	
    

    

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                on Jan 3, 2021 10:24 PM
            
            
												
						in reply to UweS
					
									
    
	
    

		
		
    
					
    I'm trying to use this code from the ADSP-BF706 EZ-KIT, but I'm getting some strange buzzing and a slight ringing with the audio.
    

    I'm attaching some audio files. 
    RawInput: the input to the board.
    DefaultFilterViaBoard: the filtered input using the code unaltered.
    NoFilterViaBoard: the input passed through the board after commenting out the code that runs the filter.
    

    What's wrong with my setup that I'm getting these strange additional sounds?DefaultFilterViaBoard.m4aNoFilterViaBoard.m4a
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
				
						
				
				
		
		
    
			
		
    
	
    

    

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