AVR-Chat

--- In AVR-Chat@yahoogroups.com, David VanHorn <dvanhorn@c...> wrote:
> 
> >
> >does anybody have any experiance with PALM's and AVR's and/or 
> >bootloaders ?
> 
> Sure, but why do you need a bootloader?
> All you need is to change some parameters.
> 
> Write the control section to work from variables stored in EEPROM.
> On first boot, write some default values to EE.
> Then you'll need a section that talks through the UART to the Palm, 
to a program you've written there (NSBasic is pretty easy) that 
accepts and stores new values for the variables.

I have a program that I want to try out for my brother in Florida.  
I'm in NJ. : )  he has the PALM and the collage he is in has a 
greenhouse that he is taking care of.

I figured that with a bootloader, I can write a new program if needed 
and e-mail it to him.  

Since he is working with plants, he has no electronical stuff.

I was figuring a bootloader would let him send a new program without 
a programmer.

But, the weekly changes would be changing variables like time ON for 
sprinklers and duration of run times.

Dave