For the record, you do not have to wait for kernel 5.4 to do J1939. I wrote software using kernel 3.8.x that read a hybrid NIMEA 2000 protocol, which uses the same high level protocol as J1939. All you have to do is understand J1939, and bit wrangle . . .
On Wed, May 20, 2020 at 7:33 AM Robert Nelson <[email protected]> wrote: > > > On Wed, May 20, 2020 at 2:54 AM Gwen Stouthuysen < > [email protected]> wrote: > >> I have the impression that your network is set up for J1939 or CANOpen >> (CAN 2.0B) >> >> when you send a message to a short address (CAN 2.0A) it doesn't get >> acknowledged, and this might crash your bus, as the BB will try to send it >> till the message is acknowledged.. >> Try to send a message to a 29bit address, or add a second can interface >> that will acknowledge your messages. (CAN1 on the BB). >> >> I'm a bit stuck on moving over to J1939, as that requires at least kernel >> 5.4, which results in boot issues due the overlay approach as applied in >> the Beaglebone OS >> > > The issue with 5.4 should now have been resolved... If you have free > time, please re-test and let me know. > > Regards, > > > -- > Robert Nelson > https://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]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAOCHtYjJ4TpHSSmA9R0uL7YRYO3j8KPwv%3Dk74UB%3DCBJs8CTiJA%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CAOCHtYjJ4TpHSSmA9R0uL7YRYO3j8KPwv%3Dk74UB%3DCBJs8CTiJA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORph3eH_c%3D3ntE3GAdogVwecwywEQQDXLj7AqeSmo%2Bpx6A%40mail.gmail.com.
