Other ATmegas (or ATtinys to)

Hello,

wouldn't it be possible to make a bootloader for other ATmegas then the 168/328/1280/2560? Perhaps even some ATinys? You could burn the bootloader with ISP and download the sketches with the FDTI cable. It doesn't need to be a new board for every ATmega/tiny, just a bootloader available.

This would make it much more economical to build projects what one need a few Inputs/Outputs, or many Inputs/Outsputs with only one chip. Or use features like the onboard Can interface of some ATmegas.

Jan

wouldn't it be possible to make a bootloader for other ATmegas

Yes, it would.

Search the forum for examples of people having done just that.

I can't find any, just topics like mine, what should I search for?

But: I thought more of official bootloaders for other chips what you can burn from the arduino IDE. I'm not so much into Hex files and so, but I have managed to burn a bootloader on another ATmega328 from the Arduino IDE.

Jan

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1281994270/4

That link seemed pretty good. So you just burn the arduino bootloader
from the IDE onto the chip to be burned? What board should I pick?

Jan

you will need to modify boards.txt

and not all of them can use a boot loader, for example most tiny's do not have a boot loader available, so you need an ISP programmer, which can be an arduino

I have looked into boards.txt but what do I need to change?

Do you mean not all of the ATmegas/tinys in zachwiejs list can use the bootloader?

Yea, I had the idé to use my arduino to do the ISP programming.

Jan