On 14/09/2019 17:57, Gerrit Heitsch wrote: > Also, back then, an empty DRAM cell didn't necessarily read as '0' to > the outside. Take a look at the memory of a system that does not clear > the RAM after power on. You'll notice a pattern that varies between > manufacturers. > > So, just writing a '1' and then waiting for it to fade to '0' if you > stop refreshing will not work on all cells. > There is some interesting research on dram that isn't refreshed herehttps://citp.princeton.edu/topics/memory/ <https://citp.princeton.edu/topics/memory/> I'm not sure whether power on pattern and unrefreshed memory will be the same, it's way into analogue territory dealing with the differences.Received on 2020-05-29 22:47:08
Archive generated by hypermail 2.3.0.