In this video I am going to explain what hex files are and what are object files. Next, I will explain how to create a hex file and finally how to upload the hex file to an AT89S52 microcontroller.
The source code and hex file used in this video is with the following link:
https://drive.google.com/file/d/15Tsp...
The target board schematics:
https://drive.google.com/file/d/1K3tk...