I have designed my own board based on an arduino pro mini running with a 328p on an external 8MHz Chrystal. (I need the 3V3 version with 8MHz due to the circuitry its connected to)
I would like to burn the latest version of Optiboot onto this 328p since I want to reduce bootup time while still having a bootloader burned since I want to still be able to program the chip via USB not ISP. Up to now I could find bits of explanations of how to burn the latest version of optiboot but sadly they often were too vague for me to follow or didn’t explain how to convert the 16MHz bootloader into a 8MHz bootloader very well.
Since at some point this board is supposed to go into production the simplest way to burn a lot of the latest Optiboot bootloaders (using an arduino uno as programmer) would make most sense. WestfW’s OptiLoader seems promising but I can’t figure out what to do with the files and how to change the bootloader into an 8MHz version.
Could someone explain the process of how to do this in a simple way or maybe direct me to a good tutorial?
Thank you in advance!