IRC logs for #automotive for Friday, 2017-03-03

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dl9pfhi !09:39
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jbocklagemorning10:39
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CTtpollardhi chbae10:46
chbaehello CTtppollard10:46
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wesamis there a way to connect to CAN from AGL14:51
wesamand grab metrics from there?14:51
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jbocklage"repo sync" brings this error on my side: http://pastebin.com/DdKPvKx6     anyone else having this problem?15:07
jbocklagewesam: I guess, there is no "AGL-way" to do it currently. Maybe you can use the cantools.15:08
jbocklagewesam: bitbake can-utils :)15:09
jbocklageof cause you need CAN drivers for your Hardware...15:10
wesamis there good documentation for that?15:36
wesamjbocklage: ^15:36
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jbocklagewesam: can-utils: https://discuss.cantact.io/t/using-can-utils/24    this should do16:01
jbocklagewhat HW are you using?16:01
wesamright now is intel minnowboard16:02
wesamwe just want to see if AGL is good for what we want to do before we go get a car with it16:03
CTtpollardThere is no CAN connector on the minnow?16:05
CTtpollardwell, embedded anyway16:05
jbocklageI guess, there is no CAN on the board. So you have to use a USB2CAN adaptor...16:07
CTtpollardif you're wanting a board with embedded CAN wesam you might want to look at Renesas16:07
CTtpollardbut yes USB2CAN is an option, the minnow might even have a CAN cape (like raspi hat)16:08
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CTtpollardoh, minnow call them Lures16:08
jbocklagebut I don't see any "can lures"16:10
CTtpollardhttp://www.elinux.org/Minnowboard:Automotive_Lure but yes, not much info16:11
jbocklageMicrochip has a lot of CAN tranceivers http://www.microchip.com/ParamChartSearch/chart.aspx?branchID=11031&mid=11&lang=en&pageId=79     ;))16:12
jbocklage+ "prototyping lure"16:12
* jbocklage better shuts up16:12
CTtpollardwait, the expansion port does support CAN natively by the looks of it http://elinux.org/Minnowboard:Expansion_Interfaces#CAN16:12
wesamoh does it16:14
wesamso you can grab can data from a board16:14
wesami thought you can only grab from cars16:14
wesamI need to a lot more research on CAN lol16:14
jbocklagewesam: do you know CAN?16:14
wesambeside some ppts i looked into, not really16:15
wesamwhat would a USB2CAN adapter do16:15
jbocklagethe USB2CAN adapter contains the CAN transceiver chip. Easy said: on the one side you have the USB connector and on the other side a CAN connector16:17
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jbocklagewhich is basically CANhigh and CANlow16:17
RzRI am not sure you can find a CAN lure to buy for minnow16:17
wesamwill look if i can find a CAN lure16:18
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wesamSo once i get CAN on the minnowboard and can-utils on the board, i should be good16:19
wesamis there a bb recipe for can-utils16:19
jbocklagewesam: you said you want to connect to a car? What do you want to do? Acessing CAN is kinda easy. But parsing the CAN messages is hard if you don't know what the messages mean ;)16:20
wesamhttps://layers.openembedded.org/layerindex/recipe/834/16:20
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wesamright16:20
jbocklage[16:09:44] <jbocklage> wesam: bitbake can-utils :)16:20
CTtpollardhttps://layers.openembedded.org/layerindex/branch/master/recipes/?q=CAN16:20
CTtpollardbut yes, meta-oe16:21
wesamjbocklage: i want to try to grab some metrics from the car16:21
wesamfor my ignorance, will can-util work with python or do you i need a python package16:21
jbocklageand you have the info how to get them and how to interpret the messages?16:21
wesamor should i use c16:21
wesamwell i should16:21
CTtpollardThere's a python module for CAN, I suspect you'll be dealing with C though16:22
jbocklageinteresting. why? Because this is well hidden by the car manufactors (well, OBD2 is (kinda) open)16:22
jbocklageyou want to use socketcan16:23
wesamright, we are going start with what we can see with OBD216:23
wesamwhich isnt much ik, but everything is a proof of concept as of right now16:24
wesamwhats socketcan16:24
wesamCTtpollard: ya c seems the way to go16:24
jbocklagewesam: https://en.wikipedia.org/wiki/SocketCAN16:24
wesamjbocklage: thanks, socketCan will help a ton16:26
jbocklageand you need this: https://www.sparkfun.com/products/1008716:26
jbocklageand you need the CAN speed of the car... 25kbps, 50, 100, 500...16:27
jbocklagethe fun starts when you connect and everything is working and you get TRILLIANSBILLONSMILLIONS of CAN frames/s ;)))16:28
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wesamlol i cant wait until i get to that point16:29
RzRwesam, I have a device with this unit http://elinux.org/FRI#CAN16:29
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RzRbut never connected to anything yet16:29
wesamRzR: you mean you have intel minnow board with that unit?16:30
RzRno I that's different16:31
RzRbut EG20T is from intel16:31
RzRso if you can't find a lure for minnow16:31
wesamahh, i see what you mean16:31
jbocklageI guess, he only needs to use PIN 28 and 30 of the minnowboard extension header (and place a 120ohm resistor between it)16:31
wesamthat could help16:31
RzRcheck for EG20T or use and usb adapter16:31
jbocklagesince it is on the HW, there is a good chance that the Kernel supports it16:32
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wesamCTtpollard: oh thanks for the links, just seen your link saying that minnowboard those have a CAN interface16:44
wesamSo i guess I will get canutils on AGL and start trying to mess with that16:45
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wesamso i am rebuilding AGL on my mac thats running ubuntu20:18
wesamcause screw you Docker and Mac20:18
wesamand omg its running so much quicker, its doing 8 tasks at once instead of 420:18
wesamyay hyperthreading20:18
wesamoopps i mean my laptop thats running ubuntu*****20:31
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