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How to use GP Timer Service APIs to open a timer in SC589 Core 0 without specifying a callback function?

		
	
				

			

									
					    LRC
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 12, 2019 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    I want to use the GP Timer Service APIs to configure a timer in SC589.  I want this timer to operate independently (free run) without any callback ISR.
    

    However if I use adi_tmr_Open() API to open the timer - I find that I must supply a callback function address.
    

    I tried using this API to open the timer with a NULL function pointer, like this:
    

    adi_tmr_Open(TIMER_NUMBER, TimerMemory, ADI_TMR_MEMORY, NULL, NULL, &ghTimer);
    

    This compiles OK but at runtime this function returns an error.  I debugged the code and found that this function will not allow a NULL specification for the callback function pointer.
    

    So it seems I must specify a function for this API call.
    

    But I don't want to create an ISR callback function for this timer.
    

    How can I open the timer for configuration (using the GP Timer Service APIs) without any callback ISR function?
    

    Thanks!