SLAAEU1 August   2025 MSPM0L1306 , MSPM0L1306

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Hardware Connection
  6. 3LaunchPad Setup
  7. 4Software Structure
  8. 5Design Considerations
    1. 5.1 IO Selection Consideration
    2. 5.2 Y-axis and X-axis Measurement Method
    3. 5.3 Touch Detection Method
  9. 6Evaluation Steps
  10. 7Summary
  11. 8References

1 Introduction

A resistive touch screen works by applying a voltage across a resistor network and measuring the change in resistance at a given point on the matrix where a screen is touched by an input stylus, pen, or finger. This consists of two transparent resistive layers made by ITO. The change in the resistance ratio marks the location on the touch screen. The two most popular resistive architectures use 4-wire or 5-wire configurations. The related software can be accessed at MSPM0L1306-RESISTIVE-TOUCH-APPSW.