Yahoo Groups archive

Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: Usage of the Flash as Data EEPROM

2004-12-27 by Gus

that doesn't mean you can use it as EEPROM!!! on an EEPROM you can 
rewrite one byte, but on flash, you have to erase a full sector in 
order to rewritre a byte. so, if you are changing full sectors of 
data then yes you can use it but if you are changing multiple bytes 
an deverytime you change a byte you arase a sector you can ware it 
out quickly.

I guess the answer would depends on how many times you need to erase 
a sector in your product life cycle

Gus
--- In lpc2000@yahoogroups.com, "varuzhandanielyan" <dan@x> wrote:
> 
> In the new data sheet for LPC2129 one can see, that minimal
> write cycles is 100,000 as many as of the data EEPROM of many
> microcontrollers.
> 
> Varuzhan
> 
> 
> --- In lpc2000@yahoogroups.com, "acetoel" <acetoel@y...> wrote:
> > 
> > Hello...
> > 
> > I also though about that, never implement ir becuase the Flash 
has a
> > limited cycles of life. So It's better to use an SPI, unless you 
> only
> > need to write it once (when programming), and read it when
> > running...but it's no sense....
> > 
> > Bye
> > Ezequiel
> > 
> > --- In lpc2000@yahoogroups.com, "varuzhandanielyan" <dan@x> 
wrote:
> > > 
> > > Dear All,
> > > 
> > > Is there somewhere availabe an example for LPC2100 how to
> > > use the flash for data storage? 
> > > 
> > > Thank you,
> > > Varuzhan

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.