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RTOS: Use Uart on BBBAM335x

saman mahmoudi
Intellectual 775 points

Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

Hello. I want to use 6 serial units in my beagle bone black device by sysbios.

How can enable all uart instance in BBBAM335x?

How can change UART_FifoThreshold?

how can change pinmux in this device?

please help me.




								


				
				

				
			

		

			
						
									
                			    			            
						
						
			
			
			
			                        
			

				

			


			

		


				    			

						

















	

	

					
    
	
    





		
	
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                          TI__Guru**
                        116940 points
                      
    
                          
                   		
		
    
					
    Saman,
    

    
Please use the app note here as a starting point:
    
www.ti.com/.../sprac32a.pdf  
    

    
App note describes how to change the pinmux for the different UART using TI PINMUX tool.
    

    
You can also use guidance from blogs like following to see which UART instances to use using a Cape.
    
billwaa.wordpress.com/.../
    

    
If you are using the HW UART driver, the the UART_soc.c has a HwAttr to define hardware attributes that allows you to set the RX and TX trigger level that sets the FIFO threashold.
    

    
We also have an ongoing project to enable multiple UART using ICSS firmware which should be part of the 1Q2019 release. It will also support 9 bit data.
    

    
Regards,
    
Rahul
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    

	            
                 	
	
    
				
		                
                
                
                
                
                
                
        		
		
				
    
			
		
    
		
		 
		
		
     
    
	
    

    
			
    
			
    
		
    

		
    
	
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