52. QEI

52.1. Overiew

QEI project demonstrates the output of Hall timer data using the serial port after triggering the QEI interrupt

Configuring the QEI Interrupts
Read the QEI UVWTIMER register

52.2. Configurations

Install the serial terminal, view board information , and configure the serial terminal parameters
This program uses the BLM57050-1000 brushless motor of “Leisai Intelligence”, refer to the Leisai Intelligence website for the specific parameters of the motor.
Click DRV-LV50A-MP1907 Motor Driver Board section and configure

52.3. Running the Demo

Power on, open the serial terminal, turning the motor bearing will trigger a QEI interrupt and print the following information. The data changes with the speed and direction of rotation, please refer to the user manual for the exact meaning of the data.

> z: 0xffffff9c
> phase: 0xc200014d
> speed: 0xa0000000
> timer: 0xa8d08799