Freescale offers a USB bootloader for its Kirin3 (MCF5225x) connected microcontroller. It offers a convenient approach to upgrade the firmware. It is not a USB host bootloader, but a USB mass storage device (MSD) bootloader.

There are so many bootloaders available that we can not describe them in detail.

As applications grow in complexity and size it becomes increasingly important to have an easy way to update the application firmware while it is in the field. Often this is done by connecting the device to a computer and loading the new firmware.

This is all about bootloading for the Atmega 328. Often, many issues come about when bootloading and these quick fixes have been found to be effective for ‘no-wait” and “no-hang” fixing

A bootloader is a program which resides in the program memory of a microcontroller and allows to program the rest of the memory without the need of a programmer. Of course, for a Bootloader to work, the microcontroller must be capable to writing to its own program flash memory, which is a feature that currently exists on many micros on the market. Bootloaders have recently seen a myriad of applications both in academic and industrial environments.