Would moving the auto-voltage switch to a daughter / companion board be a good idea? That would free some space and reduce the component count for people who intend to run the board from a 5 volt source.
No, but you have seemed to have created an itch in a lot of us. I'm still not convinced that all the software hurdles have been leaped over yet, clock @ standard 16Mhz, bootloader compiled to run at 16Mhz, etc. Pin mapping should be the same as 644p however.
If the device is going to live somewhere away from a PC ou need to power it, but for the occasional trip to the PC to be updated or whatever it comes in very handy not to have to go searching for the wall art.
I find it mildly convenient to be able to take my computer over to my running project, hook up my USB cable, upload new code, then disconnect shortly thereafter without the project having to reboot. Would your solution allow that?
Lefty, i don't follow... It seems like you are saying that a jumper needs to be moved to switch from wall wart to USB power. Or does your jumper switch from auto-switching to not auto-switching?
If everything else on teh board is surface mount, what's the advantage of the mpu being DIP? Why would anyone want to switch from the 1284P to the 644P?
QuoteIf everything else on teh board is surface mount, what's the advantage of the mpu being DIP? Why would anyone want to switch from the 1284P to the 644P? We want DIP as you can then simply use the board as a programmer for chips, remove them and stick them somwhere else.