Troubleshooting an EEPROM Write Issue in a Microcontroller—A Real-World Debugging Experience 🔧 Problem Statement While working on an embedded system at an R&D firm, I encountered a puzzling problem with EEPROM data writing. The EEPROM write operation was perfectly simulated, but when the compiled HEX file was uploaded to the actual microcontroller, the written data became unrecognizable. 🧪 Initial Assumptions At first, I assumed there might be a logical bug in my code. However, after carefully reviewing my EEPROM write functions and re-running simulations multiple times, everything appeared to be correct. 🛠 Step-by-Step Debugging Process 1. Verification via Custom Tool To confirm whether the EEPROM was actually writing incorrect data, I built a simple tool that could: Read the EEPROM data from the microcontroller Convert and display the raw bytes into human-readable formats like integer and character Upon reading the EEPROM content using this tool, I conf...