SDAA028 June   2025 MSPM0C1104 , MSPM0C1105 , MSPM0C1106 , MSPM0G1106 , MSPM0G1107 , MSPM0G1506 , MSPM0G1507 , MSPM0G1518 , MSPM0G1519 , MSPM0G3106 , MSPM0G3106-Q1 , MSPM0G3107 , MSPM0G3107-Q1 , MSPM0G3506 , MSPM0G3506-Q1 , MSPM0G3507 , MSPM0G3507-Q1 , MSPM0G3518 , MSPM0G3518-Q1 , MSPM0G3519 , MSPM0G3519-Q1 , MSPM0H3216 , MSPM0L1306

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction to MSPM0 Timer Capture and Compare Module
  5. 2Implementations for Capturing 0% or 100% Duty Cycle
    1. 2.1 Application Conditions
    2. 2.2 Implementation Introduction
      1. 2.2.1 Use COMP Detect High or Low
      2. 2.2.2 Use ADC Detect High and Low
      3. 2.2.3 Use GPIO Detect High or Low
  6. 3Demo Code Running
  7. 4Summary
  8. 5References

2.2.1 Use COMP Detect High or Low

If the MSPM0 used has a comparator (COMP) and is not used for other functions, then this can be used for 0% or 100% duty cycle high or low detection. The internal connection can be connected as below in the demo code.

COMP Implementation Interconnection in the Demo Figure 2-4 COMP Implementation Interconnection in the Demo

This implementation does not use additional pins for detection; the COMP shares the same input pin with TIMER1 capture input. The implementation needs the PWM capture pin to share the function of the capture and COMP input of the timer.