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UART and Receiver Time-out

		
	
				

			

									
					    bookevg
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Aug 27, 2015 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user seeks to implement a Receiver Time-out feature for variable-length frames in UART on a microcontroller or DSP. The final solution involves using Width Capture Mode Overflow to configure a timer that triggers an interrupt and stops RX DMA if the timer overflows, indicating an idle condition. The ADSP-SC58x processors' UART and GP timers can be used to detect break commands and measure pulse widths, providing a way to handle the time-out period.
                        	    

                
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UART of microcontrollers and DSPs of other manufactures have Receiver Time-out feature which allow to define an end of variable-length frame.

 
I want this feature.

 
My decision is to use Width Capture Mode Overflow.

 
I configure the timer to measure 4 char time and if a timer count is overflowed the interrupt arise and receive are stopped.

 
Am I right?

			

			
									
		                             
                        
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


			
	













	
			








	






































     



















		        
        

            
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