Hi Benjamin I work on CAN Bus with BBB. Did you find your problem's solution ? I could send data to use CAN bus with BBB but i didn't see anything do you have idea?
6 Nisan 2015 Pazartesi 23:24:42 UTC+3 tarihinde Ben F. yazdı: > > Hi Guys, > > I have a similar Problem. I am trying to activate the CAN1 Bus. (P9_24 & > P9_26). > > With Kernel 3.8.13 I am using the bone_capemgr.9 according to > http://www.embedded-things.com/bbb/enable-canbus-on-the-beaglebone-black/ > It works! > > But with 3.19.0 I have some problems. I just can get any signal with > candump! > I used the dtb-rebuilder and commented out the two CAN1 lines: > ... > #include "am335x-peripheral-can1.dtsi" > #include "am335x-bone-pinmux-can1.dtsi" > ... > > After make install, modeprobe etc... the ifconfig of debian 3.19 and 3.13 > (bone_capemgr.9) *looks the same.* > > can0 Link encap:UNSPEC HWaddr > 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > UP RUNNING NOARP MTU:16 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:10 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > Interrupt:159 > > But with 3.19 I can't get any signal. Anyone a Idea? > Thanks in advance for your help! > > Benjamin > > Am Montag, 30. März 2015 17:44:21 UTC+2 schrieb frudak....@gmail.com: >> >> Hi there! >> >> I don't know how to get BBB's DCAN1 working, though I've been striving >> for quite a long time. >> >> I installed the OS from a Debian image available at >> http://beagleboard.org/ and followed the guide >> http://dev.ardupilot.com/wiki/building-the-code/building-for-beaglebone-black-on-linux/ >> >> to make the kernel RT-Preempt: >> >> root@beaglebone:~# uname -a >> Linux beaglebone 3.8.13-rt9-00899-g3d8f2b1 #1 SMP PREEMPT Sat Jan 31 >> 12:22:12 CET 2015 armv7l GNU/Linux >> >> To work with DCAN1, I also followed the guide >> http://www.embedded-things.com/bbb/enable-canbus-on-the-beaglebone-black/ >> using the suggested device tree overlay: >> >> root@beaglebone:~# modprobe can >> root@beaglebone:~# modprobe can-dev >> root@beaglebone:~# modprobe can-raw >> root@beaglebone:~# echo BB-DCAN1 > $SLOTS >> root@beaglebone:~# cat $SLOTS >> 0: 54:PF--- >> 1: 55:PF--- >> 2: 56:PF--- >> 3: 57:PF--- >> 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G >> 5: ff:P-O-- Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI >> 6: ff:P-O-- Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN >> 7: ff:P-O-L Override Board Name,00A0,Override Manuf,BB-DCAN1 >> >> root@beaglebone:~# /sbin/ip link set can0 up type can bitrate 500000 >> root@beaglebone:~# ifconfig can0 up >> root@beaglebone:~# ifconfig can0 >> can0 Link encap:UNSPEC HWaddr >> 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >> UP NOARP MTU:16 Metric:1 >> RX packets:3 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:10 >> RX bytes:24 (24.0 B) TX bytes:0 (0.0 B) >> Interrupt:71 >> >> Pins seem to be muxed correctly: >> >> root@beaglebone:~# cat $PINS | grep 984 >> pin 97 (44e10984) 00000032 pinctrl-single >> root@beaglebone:~# cat $PINS | grep 980 >> pin 96 (44e10980) 00000012 pinctrl-single >> >> Now, as I run a simple cansend-candump test on can0, candump doesn't get >> anything. Is there anyone who can help me out? >> >> Thank you >> >> Frudak >> > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
