UART Communication Decoding

Experiment 4: Decoding UART Communication

Experiment 4: Decoding UART Communication

Objective: Use a logic analyzer or UART decoder to understand and analyze serial communication data.

Steps:

  1. Connect the Logic Analyzer to UART Lines:
    • Identify the UART transmit (TX) and receive (RX) lines of your device.
    • Connect the logic analyzer probes to the TX and RX lines, ensuring a proper ground connection.
    • Optionally, include additional probes for signals like RTS/CTS if flow control is being used.
  2. Capture and Decode Communication Data:
    • Open the logic analyzer software and configure it for UART protocol decoding.
    • Set the appropriate parameters, including baud rate, data bits, parity, and stop bits, matching the UART settings of the device.
    • Capture the communication and observe the decoded data in the software interface.
  3. Verify Data Integrity and Protocol Compliance:
    • Analyze the captured data to ensure it aligns with the expected communication protocol.
    • Check for errors such as framing errors, incorrect parity, or mismatched baud rates.
    • Compare the decoded data with the intended data being transmitted and received by the device.

Expected Outcome:

By the end of this experiment, you will have the skills to capture and decode UART communication, verify data integrity, and troubleshoot protocol-related issues effectively.