Hi all, Thanks for your support till now. I am really grateful to you.
While I going through the reference manual of the arm processor on the BBB, I came to know that the processor has the capacity for 4 SPI channels but BBB only provides 2 channels. 1) So I want to know if spidev1.0 and spidev1.1 are the interfaces for just one channel (because I have read the spidevB.C means channel B and device C) why are they two in number. Does these files represent the SLAVES which could be attached with this channel ? And please understand that I am not yelling or complaining. I am just new to this kind of thing. While reading the material through web I gets answers but also get questions. I hope you all don't mind my questions. I apologize if you do. *Best Regards,* *Amit Sama* *Pursuing** M.Sc. Informatics* *Technical University Munich* *Contact : +49-15214455380* On 28 August 2014 01:31, William Hermans <[email protected]> wrote: > *What can be the meaning here?* >> > > Learn how to use your tools before half fast using / complaining about > them ? > > > On Wed, Aug 27, 2014 at 12:55 PM, 'Mark Lazarewicz' via BeagleBoard < > [email protected]> wrote: > >> What can be the meaning here? >> >> Sent from Yahoo Mail on Android >> <http://overview.mail.yahoo.com/mobile/?.src=Android> >> >> ------------------------------ >> * From: * Robert Nelson <[email protected]>; >> * To: * Beagle Board <[email protected]>; >> * Subject: * Re: [beagleboard] Re: Device Tree Compiler >> * Sent: * Wed, Aug 27, 2014 7:18:21 PM >> >> On Wed, Aug 27, 2014 at 4:39 AM, Amit Sama <[email protected]> >> wrote: >> > Hi Robert, >> > >> > Though I managed to enable the spi interface on my BB. I have following >> > questions/information: >> > >> > 1) I have following urls in /etc/apt/sources.list >> > >> > THESE WERE EARLIER IN THE BBB >> > >> > #deb http://ports.ubuntu.com/ubuntu-ports/ raring main universe >> multiverse >> > #deb-src http://ports.ubuntu.com/ubuntu-ports/ raring main universe >> > multiverse >> > >> > #deb http://ports.ubuntu.com/ubuntu-ports/ raring-updates main universe >> > multiverse >> > #deb-src http://ports.ubuntu.com/ubuntu-ports/ raring-updates main >> universe >> > multiverse >> > >> > >> > THESE I COPIED FROM THE link IN ORDER TO SOLVE THE PROBLEM >> > >> > deb http://archive.ubuntu.com/ubuntu/ precise main restricted universe >> > multiverse >> > deb http://archive.ubuntu.com/ubuntu/ precise-updates main restricted >> > universe multiverse >> > deb http://archive.ubuntu.com/ubuntu/ precise-backports main restricted >> > universe multiverse >> > deb http://security.ubuntu.com/ubuntu precise-security main restricted >> > universe multiverse >> > deb http://archive.canonical.com/ubuntu precise partner >> > deb http://extras.ubuntu.com/ubuntu precise main >> > >> > >> > THESE I COPIED FROM MY DESKTOP >> > #deb http://archive.ubuntu.com/ubuntu/ precise main restricted universe >> > multiverse >> > #deb http://security.ubuntu.com/ubuntu/ precise-security main >> restricted >> > universe multiverse >> > #deb http://archive.ubuntu.com/ubuntu/ precise-update main restricted >> > universe multiverse >> > >> > NONE OF THEM WORKS, DO TELL ME WHAT ARE THE RIGHT URLS >> >> "Yelling" isn't going to fix this problem, either is random coping the >> right URLS's. >> >> So to repeat: >> >> <quote> >> So at this point, i'm just going to say... "You" totally hosed your OS >> doing some random stuff, that why it doesn't work.. >> >> Start over with a fresh image. >> </quote> >> >> > 2) I could see these two files in /dev/spidev1.0 and /dev/spidev1.1 . >> Though >> > I configures for the spi0 channel I think it should be like spidev0.0 >> and >> > spidev0.1 >> >> Nope it isn't.. >> >> > 3) In order to check if I have configured the spidev correctly, I >> copied a >> > file from here >> > >> > http://osdir.com/ml/beagleboard/2013-05/msg00813.html >> > >> > NOW WHEN I compile it using >> > >> > >> > gcc -c spidev_test.c >> > >> > It gives error like >> > >> > /usr/include/libio.h:334:3: error: unknown type name ‘size_t’ >> >> Really! "It gives error like" considering "size_t" isn't in that >> source. Your definition of "like" is way different!!! Wow.. >> >> >> Regards, >> >> -- >> Robert Nelson >> http://www.rcn-ee.com/ >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/zQ039ckqp3E/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
