Witch kernel are you using? Using the can cape that uses the can1 interface, I'm having some troubles with the 3.8 of Robert.
After I send some packages it just silently stop sending and I have to do a ifdown ifup in order to make it run again. This didn't happen with the Kernel version of the Angstrom. Any ideas? Any hint how to activate the can1 in the device tree of the 3.15? On 12 September 2014 02:21, Brent Sink <[email protected]> wrote: > Ah, yes. The TT3201 cape has three CAN channels, but two of them are over > SPI. This should help you out... > > > https://github.com/beagleboard/devicetree-source/blob/master/arch/arm/boot/dts/TT3201-001-01.dts > > > On Thu, Sep 11, 2014 at 8:00 PM, William Hermans <[email protected]> > wrote: > >> Thank Brent, However I was more curious about the bring up of the >> hardware on the BBB. IS there cape file I have not noticed yet ? >> If so I can probably figure it out on my own. >> >> On Thu, Sep 11, 2014 at 4:52 PM, Brent <[email protected]> wrote: >> >>> Well, I'm not reading a guide, but I'll share a few links that helped me >>> get started. I have a Qt application and I use the SocketCAN to read/write >>> CAN messages. This will work with J1939 as well. >>> >>> https://www.kernel.org/doc/Documentation/networking/can.txt >>> http://en.wikipedia.org/wiki/SocketCAN >>> http://www.can-cia.org/fileadmin/cia/files/icc/13/kleine-budde.pdf >>> >>> On Thursday, September 11, 2014 7:44:50 PM UTC-4, William Hermans wrote: >>>> >>>> Brent, what guide are you reading for CAN ? I've never used CAN >>>> personally, and am curious . . . >>>> >>>> On Thu, Sep 11, 2014 at 2:25 PM, Brent Sink <[email protected]> wrote: >>>> >>>>> Adding restart-ms did the trick! Thanks so much, I never knew that was >>>>> even there. >>>>> >>>>> On Wed, Sep 10, 2014 at 8:37 PM, Devan Lai <[email protected]> wrote: >>>>> >>>>>> You can configure the controller to automatically recover from >>>>>> bus-off conditions by setting the "restart-ms" option. >>>>>> >>>>>> The python-can documentation has some useful notes on socket-can and >>>>>> bus-off conditions: >>>>>> >>>>>> http://python-can.readthedocs.org/en/latest/socketcan.html#can-errors >>>>>> >>>>>> >>>>>> On Wednesday, September 10, 2014 9:39:21 AM UTC-7, Brent wrote: >>>>>>> >>>>>>> I have noticed that if I short CAN_H and CAN_L together, or if there >>>>>>> is noise on the bus, the BeagleBone will stop sending and receiving CAN >>>>>>> messages. When this happens, if I execute "ifconfig can0 down" and >>>>>>> "ifconfig can0 up", things start working again. Is there a way to >>>>>>> detect >>>>>>> this automatically and recover? I'm using SocketCAN, but haven't found >>>>>>> anything that would tell me when I get a bus off or bus heavy. >>>>>>> >>>>>> -- >>>>>> 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/SdvoxYkgagc/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. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> -brent >>>>> >>>>> -- >>>>> 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/SdvoxYkgagc/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. >> > > > > -- > -brent > > -- > 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.
