Lpc2000

--- In lpc2000@yahoogroups.com, "drybak2000" <d.rybak@j...> wrote:
> 
> OK that's fine, but it doesn't solve the problem - RTC will be 
powered
> from battery all the time (even if main power supply is OK). I don't
> think that a small battery will last long (I can't find any
> information about current on VBAT).
> 
> Darek
> 

you could charge the battery when in normal power mode..
but the supercap answer from Robert could also be a good solution. we 
had to know the Vbat current to see what we can do. maybe someone with 
a dev board could have a look at it..?