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ADUC841 Production
The ADuC841/ADuC842/ADuC843 are complete smart transducer front ends, that integrates a high performance self-calibrating multichannel ADC, a dual DAC...
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ADUC841 on Analog.com

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ADUC841 Serial Downloader (WSD) error code 4



		

			

									
					    rschad
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 19, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  ADUC841 - cannot connect to target device 
    
    		        		        		        
    Software Version: WSD 7.0.5
    
    		    		    	
			
    Trying to connect to ADUC841 using UART serial port and WSD cannot communicate with the target device:
    

    'Status: Failed to connect to the ADuC8xx after 2 attempts'.
    

    Baud Rate and Port show up as ok. PSEN is pulled low via a 1K resistor on power cycle. 
    

    I am using a USB2.0 to RS232 cable. Strange.
    

    

    What is meant by the following (from ADUC841 datasheet):  'Once in serial download mode, the user can download code to the full 62 kBytes of Flash/EE program memory while the device is in-circuit in its target application hardware.'
    

    

    Help would be greatly appreciated.
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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													+1
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Dec 20, 2022 1:04 PM
            
            
												
						in reply to rschad
					
									
      
	
      

		
		
      
					
      Hi,
      

      The error could be caused by the device not being in serial download mode when attempting to use the WSD.
      

      Have you initiated the sequence to enter serial download mode? The image below is a guide for the evaluation board to enter the serial download mode of the device.
      


       
      

      

      I have also attached the user guide for the evaluation board for additional reference.
      

      PDF
      

      

      Regards,
      

      Karl
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
						
				
				
		
		
      
			
		
      
	
      

      

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