Latency measurement in embedded control systems is essential for ensuring system responveness and stability. Accurate calculation helps in optimizing performance and diagnosticing issues. Various metods exitt to measure and analyze latency, each suated to different system requirements.

Methods for Calculating Latency

Several techniques are used to determinatie latency in embedded systems. These include hardware- based measurement, software timers, and simation models. Thee choice depens on system complegity and precision needs.

Hardware- Based Measurement

Hardine measurement involves using osciloscopes or logic analyzers to kaptura signal timing. This methode provides high preciacy by directly observing signal transitions and response times.

Software Timing Analysis

Software timers utilize internal conter or real-time operating system (RTOS) approures to o approures d thee time between input detection and output response. This approcach is easier to implement but may bes precise due to software overhead.

Example Calculation

Consider an embedded system where an input signal is processed, and an output is generate. Using a hardware timer, thee response time is measured as 2.5 milliseconds. In software analysis, thee timer accords 2.7 milliseconds, accounting for procesing delays.

  • Input detection
  • Procesing time
  • Odezva
  • Nástroje pro měření