Hello,

I work in a company specialized in robotics, am actually studying a solution which add an intelligence level in the electronic board, which allows this last to communicate to a PC (via a serial link) in the initialization , the information about the version (as a string of characters) of which firmware should be flashed in this board.

Thank you for your help

 

What about upgrades or downgrades for that matter?

Sometimes you might want to have two copies. The "factory" version and the "new version" or if the firmware fails to start, it has a way to boot into a bootloader.

TFTP or Trivial FTP was an old firmware update way of doing things.

Certain buttons when pressed during power up can now invoke a html boot page. One device uses a 30s/30s/30s sequence of the power button.
Turn on device. Press power for >30s; hold power button; unplug device for 30 s. Plug in while holding the power button.

Take a look at how the Arduino does the bootloading.