Arduino Forum

Using Arduino => Microcontrollers => Topic started by: matt99199 on Jul 25, 2017, 03:49 am

Title: Arduino 328PB using an external 8MHz Resonator
Post by: matt99199 on Jul 25, 2017, 03:49 am
Hello All,

Recently I started a low voltage project using the 328PB with an external 8MHz resonator. I went on vacation and after I came back I could upload code, great the HW works (at least I hope all the time, tbd).
The problem is I forgot which hogepoge of bootloader code worked for me and now I cannot find it to save my life...Internet history does me no good, trust me.

Does anyone have a suggestion on which bootloader/fuse settings to try?
Basically I have fiddled with optiboot and other similar projects and no luck.
Title: Re: Arduino 328PB using an external 8MHz Resonator
Post by: BJHenry on Jul 25, 2017, 07:20 am
I've used the Arduino Pro 8MHz bootloader with great success.
Title: Re: Arduino 328PB using an external 8MHz Resonator
Post by: westfw on Jul 25, 2017, 09:08 am
You should be able to use the standard 328p Optiboot (Uno) Bootloader, except that it will run at 57600bps instead of 115200.   The 328pb is a "superset" of the 328p, and mostly backward compatible.