Experiment 23: Debugging SPI EEPROM Communication

Objective: Analyze and debug SPI communication with an EEPROM device to ensure data integrity and proper configuration.

Background:

Serial Peripheral Interface (SPI) is a widely used protocol for communicating with EEPROM and other peripherals. Debugging SPI communication involves verifying proper configuration, timing, and data exchange between the microcontroller and EEPROM.

Steps:

  1. Setup:
    • Connect the SPI analyzer to the EEPROM's SPI lines: MISO, MOSI, SCK, and CS.
    • Ensure the microcontroller is programmed to communicate with the EEPROM using the correct SPI settings (clock polarity, phase, and speed).
  2. Data Capture:
    • Start the SPI protocol analyzer and configure it to match the SPI settings.
    • Capture data during typical operations, such as reading and writing to the EEPROM.
  3. Analysis:
    • Examine the captured data for errors such as incorrect opcodes, unexpected responses, or checksum failures.
    • Verify that the EEPROM responds correctly to read and write commands.
    • Adjust SPI settings or code if issues are detected.

Expected Outcome:

Understand SPI communication with EEPROM, identify potential communication errors, and ensure proper data transfer through debugging techniques.