Dear Laurent, in message <3C7654F8.3010801 at capflow.com> you wrote: > > As I need to be able to write to the memory using the MTD layer, I was > wondering if it would be better to use 2 16-bit wide chips in > interleaved mode on a 32-bit bus (connecting them in parallel to the > bus, one of them storing D[0:15] and the other one D[16:31]), or to use > them in non-interleaved mode (non-overlapping address ranges) on a > 16-bit bus. It seems that the Linux MTD layer can support both > configurations, but I don't have a deep knowledge of that code, and thus > would appreciate any advice.
For the software it does not matter - both configurations will work. For the performance it makes a BIG difference. Go for a buswidth of 32 bits, i. e. use 2 chips in 16 bit mode in parallel. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de "The trouble with doing something right the first time is that nobody appreciates how difficult it was." - Walt West ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
