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AD5764 with Microcontroller



		

			

									
					    Shahzad_Raza
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 20, 2018 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi,
    

    I am using AD5764 evaluation kit & working with evaluation software as well as STM32F407 discovery board. I have sent data from STM32 to J21 connector of AD5764 eveluation kit & woking fine.
    

    Now I have made a PCB with reference from evaluation kit data sheet. This PCB is working when I connect SYNC, SCLK & SDIN from test points that are between ADG774 mux and AD5764.
    

    Basically I send data both to evaluation kit & PCB & both works fine.There is a problem when I send data to PCB directly from STM32F407 discovery board individually.
    

    Please tell me how to solve this problem. Is it necessary to put mux to PCB as well?
    

    Thanks in advance.
    

    Regards,
    

    Shahzad Raza