Doug Franklin mused: > > On Wed, 19 Jan 2005 00:13:27 -0500 (EST), [EMAIL PROTECTED] wrote: > > > > > Maybe. But as it's NVRAM, you can't write it too often. > > > > I'd bet that rewriting the last frame number after every > > > > exposure is probably going to exceed the rewrite limit. > > I'd be surprised if the criteria were _that_ stringent. NVRAM commonly > has a lifetime of a million writes to each location. And they're > _very_ conservative on that rating. I've personally written code that > wrote to the same location in an NVRAM module more than 3.5 billion > times successfully, on a device with a design lifetime of a million > writes. I'm not saying it was the right thing to do, but it was done, > nonetheless.
Hmm. Seems to have got a lot better (not surprising, considering the increase in CF technology). Last time I looked, some of the stuff was only rated for 8K writes or so; 32K was uncommon. Power requirements went up with write cycles, too.
