Why chips can not enter sleep mode?
The program can enter Sleep Mode by setting: B0BSET CPUM0, If the system can not enter
Sleep Mode, please check the following three conditions:
1.Check watchdog settings, when you select Always on option, the system will not enter sleep mode;
2.Check whether Port0 input level signal changes, user need to decide whether pull-up Port0 depending on the actual situation;
3.Check whether Port1 be set enable wake-up function in program, if enable this function, the user needs to check whether Port1 input level signal changes.
These three conditions can make chips out of Sleep Mode, so users need to ensure the accuracy of external signals, and all ports with wake-up function should be pulled up.
1.Check watchdog settings, when you select Always on option, the system will not enter sleep mode;
2.Check whether Port0 input level signal changes, user need to decide whether pull-up Port0 depending on the actual situation;
3.Check whether Port1 be set enable wake-up function in program, if enable this function, the user needs to check whether Port1 input level signal changes.
These three conditions can make chips out of Sleep Mode, so users need to ensure the accuracy of external signals, and all ports with wake-up function should be pulled up.