Hi,> Would you mind to sumarize these horror stories? We've been using Geode > for a while. We are having some problems with Linux+RTAI hanging every > two weeks. Perhaps some of our problems are similar to yours.Are you using it in the context of a normal PC architecture, or is your application really deeply embedded? The bottom line is that in a "normal PC" application, you're always fighting SMM. I mention some of my problems at http://www.larwe.com/technical/geode_linux.html - essentially I spent ages playing about trying to get realtime stuff working reliably. Via was a lot better for us - no weird SMM issues, MUCH higher performance (especially for video; KN133 vs. CS5530 is NO contest), cost not much greater (actually, cost of a 533MHz Via Mini-ITX board was less than half the cost of a 300MHz Geode SBC). It just meant redesigning the product housing, and the company ran out of money before doing that. -- Here, in a large house, formerly a house of state, lives Mr. Tulkinghorn. It is let off in sets of chambers now, and in those shrunken fragments of its greatness, lawyers lie like maggots in nuts.
Graphics controller for PowerPC
Started by ●January 7, 2005
Reply by ●January 9, 20052005-01-09
Reply by ●January 10, 20052005-01-10
Maybe you can extend a graphic controller through PCI bus. "Elder Costa" <elder.costa@terra.com.br> ??????:348lulF49ek25U1@individual.net...> Hello. > > I am looking at some possible processor architectures for future products. > > Intel offers some Pentium III and Pentium M derivatives plus chipsets > that include peripherals and graphics controllers with 2D acceleration. > > I have browsed through Freescale page looking at their several PPC > families. There are some very interesting SOCs based on medium to high > end CPUs (which I guess must be equivalent if not superior to the above > x86 concerning processing power) with all sort of peripherals, floating > point, even ethernet MACs but no graphics controller. I would appreciate > insights on parts to perform such a function should I design products > based on PPC. > > TIA. > > Elder. > >
Reply by ●January 10, 20052005-01-10
On Fri, 07 Jan 2005 21:58:04 -0200, Elder Costa <elder.costa@terra.com.br> wrote:>Hello. > >I am looking at some possible processor architectures for future products. > >Intel offers some Pentium III and Pentium M derivatives plus chipsets >that include peripherals and graphics controllers with 2D acceleration. > >I have browsed through Freescale page looking at their several PPC >families. There are some very interesting SOCs based on medium to high >end CPUs (which I guess must be equivalent if not superior to the above >x86 concerning processing power) with all sort of peripherals, floating >point, even ethernet MACs but no graphics controller. I would appreciate >insights on parts to perform such a function should I design products >based on PPC.Fujitsu have a range of graphic controllers designed for embedded products. How easy they are to get I do not know, but they look quite nice from what I have read of their specs. Regards Anton Erasmus>
Reply by ●January 10, 20052005-01-10
On Sun, 9 Jan 2005 18:48:37 GMT, Wolfgang Denk <wd@denx.muc.de> wrote:>Greg Neff <greg@guesswhichwordgoeshere.com> writes: > >>Well, we needed a full industrial (-40�C to +85�C) video controller to >>use with an MPC8250. We selected the Eposn S1D13806. We ran >>production for just over a year, and then Epson discontinued it >>without notice. I hate it when that happens. It's a shame, because >>it had integrated SDRAM. It was the perfect single-chip solution for >>our application. > >>Now we are in the same boat of looking for a suitable replacement, >>with full industrial specs. And by the way, we don't want a PCI >>interface. We are thinking that we will have to use an >>FPGA+SDRAM+video DAC, but this is going to use more real estate. Any >>ideas? > >Coral-P, Coral-Q ? > >Best regards, > >Wolfgang DenkInteresting. Actually, the Scarlet looks more like what we need because it has the embedded RAM. I'll have to check availability. A QNX driver would be nice... ================================ Greg Neff VP Engineering *Microsym* Computers Inc. greg@guesswhichwordgoeshere.com
Reply by ●January 10, 20052005-01-10
On Sun, 9 Jan 2005 18:48:37 GMT, Wolfgang Denk <wd@denx.muc.de> wrote:>Greg Neff <greg@guesswhichwordgoeshere.com> writes: > >>Well, we needed a full industrial (-40�C to +85�C) video controller to >>use with an MPC8250. We selected the Eposn S1D13806. We ran >>production for just over a year, and then Epson discontinued it >>without notice. I hate it when that happens. It's a shame, because >>it had integrated SDRAM. It was the perfect single-chip solution for >>our application. > >>Now we are in the same boat of looking for a suitable replacement, >>with full industrial specs. And by the way, we don't want a PCI >>interface. We are thinking that we will have to use an >>FPGA+SDRAM+video DAC, but this is going to use more real estate. Any >>ideas? > >Coral-P, Coral-Q ? > >Best regards, > >Wolfgang DenkOn second thought, the Coral-B looks better. It's in a BGA package, so I can afford some real estate for external SDRAM. Also, the QNX web site says that they have a PowerPC driver for the Coral-B. http://www.fujitsu.com/us/services/edevices/microelectronics/otherassps/graphicdisplay/products/coralb/ Fujitsu's North American distributor is Arrow. At this time Arrow does not show any of the Fujitsu graphics controllers in their online database. We'll have to call to see what the availability is like. ================================ Greg Neff VP Engineering *Microsym* Computers Inc. greg@guesswhichwordgoeshere.com
Reply by ●January 11, 20052005-01-11
Greg Neff <greg@guesswhichwordgoeshere.com> wrote :> On second thought, the Coral-B looks betterscreams overkill - it is a video grabber, half of the chip will be unused Pozdrawiam. -- RusH // http://randki.o2.pl/profil.php?id_r=352019 Like ninjas, true hackers are shrouded in secrecy and mystery. You may never know -- UNTIL IT'S TOO LATE.
Reply by ●January 11, 20052005-01-11
On Tue, 11 Jan 2005 04:07:17 +0000 (UTC), RusH <logistyka1@pf.pl> wrote:>Greg Neff <greg@guesswhichwordgoeshere.com> wrote : > >> On second thought, the Coral-B looks better > >screams overkill - it is a video grabber, half of the chip will be unused > > >Pozdrawiam.It certainly is overkill, but: The BGA package uses much less real estate than the PQ208 used for the Scarlet. Board space is critical for us. The Coral has a 1.8V core voltage, same as the PowerPC that we are using. The Scarlet needs 2.5V, so we would have to add another regulator. Fujitsu is making sure there is wide embedded OS support for Coral, so it seems likely to be around for a while. We foresee some applications where the video input will be a good feature. When all is said and done the Coral looks like it makes more sense for us. ================================ Greg Neff VP Engineering *Microsym* Computers Inc. greg@guesswhichwordgoeshere.com
Reply by ●January 11, 20052005-01-11
Greg Neff <greg@guesswhichwordgoeshere.com> wrote :> When all is said and done the Coral looks like it makes more sense > for us.there is one but, it costs as much as powerPC itselfe :) Pozdrawiam. -- RusH // http://randki.o2.pl/profil.php?id_r=352019 Like ninjas, true hackers are shrouded in secrecy and mystery. You may never know -- UNTIL IT'S TOO LATE.
