From 619c5455698ef5ec8f425c86bd214a6927d19e52 Mon Sep 17 00:00:00 2001 From: Manuel Traut Date: Wed, 6 Apr 2011 00:31:12 +0200 Subject: created pres for mtd and ubi Signed-off-by: Manuel Traut --- flash-memory/ubi/pres_ubi_en.tex | 52 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 flash-memory/ubi/pres_ubi_en.tex (limited to 'flash-memory/ubi/pres_ubi_en.tex') diff --git a/flash-memory/ubi/pres_ubi_en.tex b/flash-memory/ubi/pres_ubi_en.tex new file mode 100644 index 0000000..fc5703f --- /dev/null +++ b/flash-memory/ubi/pres_ubi_en.tex @@ -0,0 +1,52 @@ +\input{configpres} + +\subsection{UBI - Unsorted Block Images} + +\begin{frame} + \tableofcontents +\end{frame} + +\begin{frame} +\frametitle{UBI - Unsorted Block Images} +\begin{itemize} +\item scans list of eraseblocks +\item generates a mapping between eraseblocks and ubi volumes +\end{itemize} +\end{frame} + +\begin{frame} +\frametitle{UBI works on top of MTD} +\includegraphics[width=8cm]{images/ubi-big-picture.png} +\end{frame} + +\begin{frame} +\frametitle{UBI Volumes} +\begin{itemize} +\item something like a partition in common systems +\item but more flexible +\item ubi exchanges eraseblocks between volumes (for bad block handling, +wear-leveling) +\item non-linear mapping of physical eraseblocks (peb) to logical eraseblocks +(leb) +\item e.g. a volume out of 3 blocks could use peb 813, 28, 1017 +\end{itemize} +\end{frame} + +\begin{frame} +\frametitle{Volume type} +\begin{itemize} +\item static +\begin{itemize} +\item used for a single binary +\item no filesystem +\item easy readable e.g. by a bootloader +\end{itemize} +\pause +\item dynamic +\begin{itemize} +\item used for filesystems +\end{itemize} +\end{itemize} +\end{frame} + +\input{tailpres} -- cgit v1.2.3