I shut down mcu(KA4), and a power-on trigger circuit is working.
But it even consumes more current.
Then I found that it's i/o is not high-impedance. Why?
Solved! Go to Solution.
I changed the method to shutdown the MCU, just keep it under reset.(Workaround)
I changed the method to shutdown the MCU, just keep it under reset.(Workaround)