From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <38794090.8D116362@charter.net> Date: Sun, 09 Jan 2000 20:14:40 -0600 From: Dan Dickey MIME-Version: 1.0 To: Dan Malek CC: "linuxppc-embedded@lists.linuxppc.org" , Linux PPC Dev Subject: Re: MPC850 Development Board - with SDRAM References: <38777E93.2BE51FEE@charter.net> <38791AAD.F3EBA3A2@netx4.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Dan Malek wrote: > > Dan Dickey wrote: > > > yes - I have an RPX Lite sitting right next to me. > > But, apparently Embedded Planet doesn't have any > > development boards with SDRAM on them. > > Embedded Planet does not build development boards, they > build production boards for OEMs to integrate into products > to reduce development cost and risk. Sorry - didn't mean to imply that. I'm aware of what they advertise on their web page (http://www.embeddedplanet.com/) and how some of it is used. I'm not sure that any "smaller" companies actually make powerpc development systems - instead, I can only find them at Motorola and IBM, and ???. > There is always > a debate about EDO versus SDRAM. Their design started wtih > EDO, and since it continues to be available with both > competitive cost and performance there isn't a reason to > change the design. > > Products that wish to use SDRAM do so by placing it on their > boards that connect to the Embedded Planet board. This allows > the flexibility to add the necessary amount of memory for > the product requirements. You can use the UPMB signals from > the RPX-Lite processor bus connector in your design if you > require SDRAM. > > -- Dan Yes, I've become a little more aware of this situation since claiming the above. Here's a message I received from Robert Applebaum (who works for Embedded Planet I believe). He gave permission to repost this to the list. Robert Applebaum wrote: > > Dan, we use EDO on CPU boards, but have PC100 SDRAM on new IO cards such as > the VEXC which use the UPM B (the EDO on UPM A are used as a single Heap) > > all our new products have SDRAM I haven't responded back to Robert yet; but I'm intrigued by the last line - is there a system in the works that has SDRAM on it? (And no EDO). Time will tell. And yes - I'm aware that Embedded Planet isn't in the development system market - but you do have to admit, their boards also fulfill that requirement pretty well. :) -Dan ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/