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UART Data transfer using DMA



		

			

									
					    satya
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jul 30, 2012 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Dear Sir,
    
 
    Please provide me an example code in C for the above requirement. When I'm modifying the UART echo example for core interrupt to DMA interrupt during linking it shows error in IDDE as fatal error : Link failed and The following symbols referenced in processor "P0" could not be resolved: 'length[_length]' referenced from '.\Debug\UARTDMA transfer.doj'
    
 
    please help in this regard as soon as possible.
    
 
    regards
    
 
    satya
    
									
			        
		
    

				
						
        

		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



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                on Aug 8, 2012 8:49 AM
            
            
					
        
	
        

		
		
        
					
        Hi Jeyanthi,
        
 
        1. Did you check the memory buffers tx_data1 and rx_data1? Is there any data received in the rx_data1?
        
 
          no
        
 
        2. Can you place a breakpoint inside the ISR and check?
        
 
           
        
 
        3. Can you capture the UART registers after running your code and send to me?
        
 
             Please see the snapshots 
        
 
        regards
        
 
        satya
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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                on Aug 8, 2012 8:49 AM
            
            
					
          
	
          

		
		
          
					
          Hi Jeyanthi,
          
 
          1. Did you check the memory buffers tx_data1 and rx_data1? Is there any data received in the rx_data1?
          
 
            no
          
 
          2. Can you place a breakpoint inside the ISR and check?
          
 
             
          
 
          3. Can you capture the UART registers after running your code and send to me?
          
 
               Please see the snapshots 
          
 
          regards
          
 
          satya
          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

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