SLAAEK4 January   2024 MSPM0C1104

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Comparison Between TIMA and TIMG
  6. 3 Use Case - 3 Pairs of Complementary PWM with Deadband Insertion
    1. 3.1 Principle
    2. 3.2 Implement
  7. 4 Use Case - Timing-Critical PWM Control with Shadow Load and Compare
    1. 4.1 Principle
    2. 4.2 Implement
  8. 5 Use Case - Fault Handler
    1. 5.1 Principle
    2. 5.2 Implement
  9. 6 Use Case – PWM Disable with Software Force Output
    1. 6.1 Principle
    2. 6.2 Implement
  10. 7 Use Case - Asymmetric PWM
    1. 7.1 Principle
    2. 7.2 Implement
  11. 8 Use Case – Optimal Interrupt Generation with Repeat Counter
    1. 8.1 Principle
    2. 8.2 Implement
  12. 9 Summary
  13. 10References

5.1 Principle

Fault handler is usually required in real-time control to handle abnormal conditions, for example overcurrent or overvoltage conditions. Hardware fault behavior enables faster protection than software code. In addition, more complex PWM control can be implemented based on the fault handler.

In TIMA only, there are internal and external fault inputs which can be used to control the generation of PWM signals. The intended use of these inputs is as a mechanism for internal or external circuitry to indicate a fault in the system. This allows the hardware to react quickly to the external fault while optionally signaling an interrupt for software correction and leaving the output signals in a safe state.

To enable fault handler, TIMA is required. The following is the key feature for the use case.

  • Generate center-aligned or edge-aligned PWMs
  • Enable fault handler (TIMA only)