SLAU927A March   2024  – June 2024 MSPM0G3507

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Hardware Setup
    1. 2.1  EVM Hardware Setup
      1. 2.1.1 EVM Hardware Support
    2. 2.2  Pin Configurations for IPD Usage
    3. 2.3  Pin Configurations for PWM Outputs
    4. 2.4  Pin Configurations for ADC Currents
    5. 2.5  Pin Configurations for ADC Voltages
    6. 2.6  Pin Configurations for Faults
    7. 2.7  Pin Configurations for GPIO Output Functions
    8. 2.8  Pin Configurations for SPI Communication
    9. 2.9  Pin Configurations for UART Communication
    10. 2.10 External Connections for Evaluation Boards
  6. 3Software Setup
    1. 3.1 Software Support
  7. 4GUI Setup
  8. 5Register Map
    1. 5.1 User Control Registers (Base Address = 0x20200400h)
    2. 5.2 User Input Registers (Base Address = 0x20200000h)
    3. 5.3 User Status Registers (Base Address = 0x20200430h)
  9. 6Basic Tuning
    1. 6.1 System Configuration Parameters
      1. 6.1.1 Configuring System Parameters from GUI
      2. 6.1.2 Motor Resistance in Milliohms (mΩ)
      3. 6.1.3 Motor Inductance in Microhenries (μH)
      4. 6.1.4 Saliency of IPMSM Motor
      5. 6.1.5 Motor BEMF Constant
      6. 6.1.6 Base Voltage (V)
      7. 6.1.7 Base Current (A)
      8. 6.1.8 Maximum Motor Electrical Speed (Hz)
    2. 6.2 Control Configurations for Basic Motor Spinning
      1. 6.2.1 Basic Motor Startup
        1. 6.2.1.1 Disable ISD
        2. 6.2.1.2 Motor Start Option - Align
        3. 6.2.1.3 Motor Open Loop Ramp
        4. 6.2.1.4 Motor Open Loop Debug
      2. 6.2.2 Controller Configuration for spinning the Motor in Closed Loop
        1. 6.2.2.1 PI Controller Tuning for Closed Loop Speed Control
        2. 6.2.2.2 Testing for Successful Startup Into Closed Loop
    3. 6.3 Fault Handling
      1. 6.3.1 Abnormal BEMF Fault [ABN_BEMF]
      2. 6.3.2 Monitoring Power Supply Voltage Fluctuations for Voltage Out of Bound Faults
      3. 6.3.3 No Motor Fault [NO_MTR]
  10. 7Advanced Tuning
    1. 7.1 Control Configurations Tuning
      1. 7.1.1  Initial Speed Detection of the Motor for Reliable Motor Resynchronization
      2. 7.1.2  Unidirectional Motor Drive Detecting Backward Spin
      3. 7.1.3  Preventing Back Spin of Rotor During Startup
      4. 7.1.4  Gradual and Smooth Start up Motion
      5. 7.1.5  Faster Startup Timing
      6. 7.1.6  Stopping Motor Quickly
      7. 7.1.7  Flux Weakening : Operating Motor at Speeds Higher than Rated Speed
      8. 7.1.8  Maximum Torque Per Ampere : Improve Efficiency of IPMSM Motors
      9. 7.1.9  Preventing Supply Voltage Overshoot During Motor Stop.
      10. 7.1.10 Protecting the Power Supply
      11. 7.1.11 FOC Bandwidth Selection
  11. 8Hardware Configurations
    1. 8.1 Direction Configuration
    2. 8.2 Brake Configuration
    3. 8.3 Main.h Definitions
    4. 8.4 Real Time Variable Tracking
  12. 9Revision History

2.2 Pin Configurations for IPD Usage

The default pin configurations for Initial Position Detection (IPD) are shown in Table 2-12. The required connections are the three current sense amplifier outputs to the positive inputs of the three integrated comparators of the MSPM0. The comparators monitor the phase current against a pre-set IPD threshold voltage (set by 8-bit DAC into the comparator negative input). Currently, IPD algorithm is supported only with three shunt current sensing. Currently, IPD is supported only with inverted current shunt configuration (inverting amplifier).

Table 2-2 Pin Configurations for IPD

MSPM0 pin

MSPM0 Function

DRV connection

DRV Function

COMP0_INx+

Comparator 0 positive input

SOA

Phase A current sense output

COMP1_INx+

 Comparator 1 positive input

SOB

 Phase B current sense output

COMP2_INx+

Comparator 2 positive input

SOC

 Phase C current sense output