We added the RTT Viewer logging functionality to our MCU project (NXP S32k146). With the normal project with out RTT support the MCU can enter the VLPS correctly and we can verify this by checking the current consumption which gets very low in VLPS mode around 0.5 mA. However, when we enable RTT in the Project the MCU is not able to eneter the VLPS mode and stays in VLPR. THe current consumption at this point is ten times higher as compared to the previous scenario with a value around 5 mA.
We would like to know how we can make the MCU enter VLPS mode with RTT support enabled (so that we start getting the RTT prints as soon as we exit VLPS mode and also before entering VLPS mode).
 danielmartynek
		
			danielmartynek
		
		
		
		
		
		
		
		
	
			
		
		
			
					
		Hi @Sami2098,
With any debugger, the MCU cannot get to VLPS.
The debugger must be disconnected if you want the MCU in VLPS.
Regards,
Daniel
