WP# line on flash chip?

Brian Norris computersforpeace at gmail.com
Thu Jan 8 11:29:28 PST 2015


On Thu, Jan 08, 2015 at 11:00:03AM -0800, Daniel Ehrenberg wrote:
> In fact, the kernel
> can't drive it appropriately because the important time to hold it low
> is before the kernel is up (or actually it can go low sooner than
> that),

That's not true. It's also helpful to have it low during a power cut
scenario, which theoretically can occur at any time.

> and by the time the kernel is up, it's fine to have it high all
> the time.

As Steve quoted Micron, it's good to keep WP asserted when you're not
writing to the flash.

Brian



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