TIDUF84 June   2024

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 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 UCC28810
      2. 2.3.2 MCF8315
      3. 2.3.3 MSPM0L
      4. 2.3.4 MSPM0C
  9. 3System Design Theory
    1. 3.1 MCF8315 Design
      1. 3.1.1 Power section
      2. 3.1.2 GPIO section
    2. 3.2 ACDC Design: Single Stage PFC
    3. 3.3 Host MCU Design
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 Hardware Overview
      2. 4.1.2 TIDA-010951 PCB
    2. 4.2 Software Requirements
    3. 4.3 Testing requirements
    4. 4.4 Test Setup
    5. 4.5 Test Results
      1. 4.5.1 Power Management in TIDA-010951
      2. 4.5.2 UCC28810 Based Single Stage PFC
      3. 4.5.3 BLDC Residential Fan Operation Using MCF8315C
        1. 4.5.3.1 Power-Up Sequence
        2. 4.5.3.2 Forward Windmilling (ISD Forward Resync)
        3. 4.5.3.3 Reverse Windmilling (ISD Reverse Resync)
        4. 4.5.3.4 Direction Reversal
        5. 4.5.3.5 Fan Acceleration/Deceleration
      4. 4.5.4 Thermal Performance
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    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. 7Recognition

3.3 Host MCU Design

The 20-pin MSPM0L1306 is used in this TIDA-010951 design. Customers can use MSPM0C110X and MSPM0L110X according to needs. MSPM0L130X Pin to Pin with MSPM0L110X(VSSOP) and MSPM0C110X(VSSOP). The MSPM0L1306 is a 32MHz device with 64kB flash and 4kB RAM. In this design, we use I2C (PA0 and PA11) to communicate with the MCF831x device, and the MCF831x device can be configured or controlled through I2C. BRAKE, FG, SPEEP, DRVOFF are brake, speed feedback, speed input, and drive off pins, respectively, which can be obtained or controlled through the MCU GPIO. The IR receiver out pin is connected to PA11 as the input pin of the IR signal. In this design, PA18 is pulled down to prevent the initial power-on from entering the BSL mode. At the same time, the design also reserves UART communication TX, RX (PA22, PA23)

TIDA-010951 Host MCU Design Figure 3-4 Host MCU Design