TIDUFF7A October   2025  – March 2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
    2. 1.2 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 AM2612
      2. 2.3.2 DRV7167A
      3. 2.3.3 AMC0106M05
      4. 2.3.4 DP83826A
  9. 3System Design Theory
    1. 3.1 AM2612 Motor Control and Communication Interface
    2. 3.2 DC Link and Ground Configuration
    3. 3.3 Three-Phase Inverter With DRV7167A Half-Bridge GaN Motor Driver Power Stage
    4. 3.4 Inline Shunt Precision Phase-Current Sensing With AMC0106M05 Functionally Isolated, Delta-Sigma Modulator
    5. 3.5 System Power Management
    6. 3.6 Functional Safety Concept
    7. 3.7 Ethernet Physical Layer
    8. 3.8 Position Feedback Interface
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 TIDA-010979 PCB Overview
      2. 4.1.2 TIDA-010979 Hardware Setting
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
    4. 4.4 Test Results
      1. 4.4.1 Power Management and System Power Up and Power Down
      2. 4.4.2 Half-Bridge GaN Motor Driver Power Stage Switch Node
      3. 4.4.3 Power Stage Thermal Measurements
      4. 4.4.4 Phase-Current Sensing and Position Feedback
      5. 4.4.5 EtherCAT® Communication
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
      3. 5.1.3 Layout Prints
      4. 5.1.4 Altium Project
      5. 5.1.5 Gerber Files
      6. 5.1.6 Assembly Drawings
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author
  13. 7Revision History

4.4.5 EtherCAT® Communication

This test verifies the data transmitting between physical layer and medium access control (MAC) layer. Additionally, the EtherCAT link and PHP data objects (PDO) are verified establishing on data-access abstraction layer which is used for position loop control. Figure 4-16 shows the physical layer and MAC layer connectivity.

TIDA-010979 Data Transmitting Between PHY and MAC Figure 4-16 Data Transmitting Between PHY and MAC

Figure 4-17 showcases the EtherCAT state machine and PDO box data.

TIDA-010979 EtherCAT® State Machine and PDO Box Figure 4-17 EtherCAT® State Machine and PDO Box