27 Oct
2012
27 Oct
'12
5:40 a.m.
On Sat, Oct 27, 2012 at 1:06 AM, repository service svn@flashrom.org wrote:
Wicked chip: No WRSR, no write enable command (but swallows our default one without a problem), supports an auto-erasing page write (but even without that page writes are recommended to write the whole page i.e. operate on a completely erased page), mad requirements on block refreshments if only partly written.
Sounds familiar. The AT45DB chips I've looked at have a fairly similar erase hierarchy and exactly the same page refresh requirements if you're only updating some of the pages within a sector. The command set's slightly different, of course. Weird chips.