On Thu, 7 Feb 2013 22:48:49 -0500 Tom Easterday <[email protected]> wrote:
> Michael, > I recall seeing a message from you a while back saying you had given > up on raspberry pi (I'm paraphrasing) but I can't seem to locate that > in my mail at the moment. I was curious why it was you abandoned it? > Was it an I/O issue or performance with real time? Did you > ultimately get the Xenomai build working on it? Thanks, -Tom I think I've found the relevant quotes from way back on the list: On Mon, 03 Dec 2012 05:44:44 -0600 Charles Steinkuehler <[email protected]> wrote: > On 12/2/2012 10:22 PM, Michael Haberler wrote: > > As for the Raspberry: that has very limited potential - the > > platform is about half as fast as the Beaglebone, has fairly > > minimal GPIO, and it is wed to the Broadcom chipset, which I would > > rate as a company which still doesnt get it. A mean voice said > > about the chipset used on the Pi 'half of it isnt documented, and > > the other half doesnt work'. Thats not entirely true but there is > > something to that comment. > > Even worse, the Pi isn't an ARM chip with a bunch of stuff attached, > it's a black-box video decoder/GPU that happens to have an ARM as a > co-processor. The GPU is in total control of the system (including > booting from flash), everything about the GPU is undocumented, and the > GPU can eat up as much bus/memory/system as it wants, holding off even > a real-time Linux kernel for unknowable amounts of time. > > I agree with you that Broadcom doesn't get it, and TI does. Thanks, Matt ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
