Lpc2000

If you have just a few bytes to save, you can keep Vbat and use the 
alarm registers of the RTC and probably the RTC registers itself  if you 
don't mind loosing it (you probably will have to pull X1 down and select 
external  oscilator, or select the clock derived from the main oscilator 
and keep resseting the seconds register to avoid changes in the others).
But if you need more than a few bytes, then go to an e2prom or even a 
serial dataflash. They will give you a lot of non volatile memory using 
just a few i/o pins (2 or 4).


jingsian_lim wrote:
> Hi to all,
>
> I am working on lpc2148.
> I want to store a data into the microcontroller so that the data can
> be used even after power off/on.
>
> Can anybody help me?
>
> Thanks,
>
> JS
>
>
>
>
>
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