Firmware is the software that runs directly on a microcontroller. It tells the microcontroller what tasks to perform and how to perform them. If a microcontroller is not already running the required firmware, you will need to upload new firmware to it.
Before instructing your microcontroller’s boot loader to download new firmware, you must have a firmware file that is compatible with your specific microcontroller (or board).
Getting Firmware From Someone Else
One of the easiest ways to get started is by using ready-to-use firmware written by others. This approach allows you to focus on foundational tasks like:
- Connecting your development board to a PC.
- Uploading firmware, which may involve:
- Installing necessary drivers.
- Switching to bootloader mode by pressing certain buttons, depending on your development board.
By starting with pre-existing firmware, you can simplify the initial setup process and avoid the additional complexity of programming right away.
Creating New Firmware Yourself
Once you become comfortable handling your microcontroller and performing firmware uploads, you can take the next step: creating your own firmware. This allows you to program your microcontroller with maximum flexibility, tailoring it to meet your specific needs and goals.
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(content created May 10, 2024 - last updated Jan 04, 2025)