I/O

• FAQ for I/O
  • 1. How to deal with the problem of high sleep power consumption due to IO leakage (how to properly configure and detect IOs before sleep)?
  • 2. How to deal with IO interrupt loss?
  • 3. Does IO have push-pull output mode?
  • 4. What is the reason for the large frequency error when outputting a square wave using IO flip-flop?