18.1. BLDC BLOCK

18.1.1. Overview

Bldc_block project demonstrates speed control of the BLDC.

  • Control by trapezoidal wave algorithm

18.1.2. Configurations

  • This program uses the BLM57050-1000 brushless motor of “Leisai Intelligence”, refer to the Leisai Intelligence website for the specific parameters of the motor.

  • Board settings refer to the development board documentation Motor Pin related content

    • SOCs without the HALL peripheral need to connect the HALL signal from the motor board to the QEI pin on the motor interface of the development board.

18.1.3. Running the Demo

The motor runs at a speed of 20r/s. The following data can be configured by serial console ：

speed float, range +40~+5 -40~-5 0, unit r/s.

The serial console message is as follows:

Speed mode, motor run, speed is: 20.000000.
Input speed:

Speed mode, motor run, speed is: 10.500000.
Input speed:

Warning

Pay attention to the current size, when abnormalities occur, please cut off the power at any time