20. Hall

20.1. Overview

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

• Hall interrupt configuration and handling

• Reading Hall UVWTIMER register data

• TRGM (Trigger Manager) configuration

20.2. Implementation Details

• Initial Configuration: - Configure TRGM input sources for U, V, W hall signals - Configure and enable interrupt - Configure hall counter and phase count - Configure data reading trigger on U phase signal change

• Interrupt Handling: - Clear status flags in hall interrupt - Set data ready flag to trigger data reading in main loop

• Data Reading: - Wait for data ready flag in main loop - Read U, V, W phase counter values and timer counter value - Print data through serial port

20.3. 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

20.4. Running the Demo

• After power-on, open the serial terminal, startup message will be printed

• When rotating the motor shaft, hall interrupt will be triggered and print: - u: Hall counter value for U phase - v: Hall counter value for V phase - w: Hall counter value for W phase - timer: Timer counter value

• The data changes with rotation speed and direction, refer to user manual for details

> u: 0xe0000000
> v: 0x87b6d17c
> w: 0x46999a8
> timer: 0xe149af9