On Thu, Nov 22, 2001 at 10:16:58PM +0100, S�bastien Judenherc wrote: > Le Thu, Nov 22, 2001 at 11:22:29AM -0700, Ray Lehtiniemi a �crit : > > what about the SDRAM chips? my revC board has > > > > NEC > > D4564163G5 > > -A80-9JF > > 0011LEU35 > NEC > D4564163G5 > -A10-9JF > 0009LBL25 > > I think we can say it's the same.
i don't. i can't find docs for the 4564163 anymore, but this page datasheet - http://www.elpida.com/pdfs/E0031N30.pdf homepage - http://www.elpida.com/en/products/sdram.html tells me that the 45128163 has different timings for A10 and A80. go to the "part number" section of the datasheet. A10 means 3.3V 100MHz, A80 means 3.3V 125MHz. your RAM is slower than mine. knowing myself, i'm sure i told hermit to drive the memory as fast as possible, and the SDRAM on your older board just isn't keeping up. just back off a bit on the SDRAM setup and it will probably work. > When (after opening JP31) I run the "boot" command, I get a crc error > while the kernel boots on the "linux" command. Something is still wrong. and i bet it's your sdram timings :-) -- --------------------------------------------------------------------------- Ray Lehtiniemi <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> _______________________________________________ http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm Please visit the above address for information on this list.
