On Friday, 26 June 2015 22:19:06 UTC+9, Lukas Blaschko wrote: > > Hello > > for last 2 weeks I had hard time to figure out how in the hell can bus > works :D I got true it and at-least I'm getting something from can bus line > when I turn the devices on. I'm not sure what it is yet :D. > > However I have measured the can bus line and found there is 120Ohm > resistor ... it took me about week to research and tons of testing to find > out. How should I connect the line and good there is soo much of > "unuseful"(***** some bad words) informations out there. An other week I > spend working with BeagleBone Black rev C to get can bus working and once > and again there is tons of "unuseful" informations. But again got it > working :D > > How ever when I prepare the can interface, run the candump and the turn > devices on. I get this: > ... 0x705 [1] 00 > ... 0x706 [1] 00 > ... 0x707 [1] 00 > ... 0x708 [1] 00 > > On the line there are 4 motors that are control by 4 Whistle 5/60 from > Elmo Motion Control. So the 705 706 707 708 should be the can id's. Is that > right? > After checking on the can interface I see there is some Rx going on. > So after reading so "much" information that is out there I start trying to > send some information on can bus line: > cansend can1 000#81.00 > This should do NMT Reset. Right after that I check stats. and see there is > more Rx no Tx and see that the there is 1 dropped on Tx line and all the > interface get restarted(I got tired of doing it manually so I set the > restart-ms to 100ms). and on oscilloscope connected to can bus line I > didn't see any changes but on pin 26 (on the BBB) I had something that was > send to can transceiver. > > Can some please help me figure out what am I doing wrong? > >
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