Press down PWRON1 give rise to Q2 and Q3 conduction, the 51822mcu power on and IO send a hight level to PWRON,to keep VCC_nRF.
At this time press a lot of button will not shutdown 51822 VCC
but..............
PWM work on Specific frequency output ,51822 dead halt,VCC_nRF=0V
I can not find why?Would you please give me advice to help me find the answer