Preface
First of all, the chip needs to use a model with a comparator, and some do not have a comparator.
surroundings
STM32F071CBT6
STM32CUBEMX
MDK5
step
1. Use Cube to create a new project and select the corresponding chip
2. Set basic settings such as the clock
3. Turn on COMP1 to set the parameters
Parameter explanation
Combine the block diagram to make it easier to understand
Input+: signal input
Input-: compare the signal, compare the input signal with the signal. If it is greater than 1 and less than 0, it can be configured to invert
Speed/Power Mode: Speed, the higher the burr, the greater the impact
Interrupt Trigger Mode: Trigger mode, rising edge and falling edge
Hyseteresis Level: Hysteresis