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dl9pf | hi ! | 09:39 |
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jbocklage | morning | 10:39 |
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CTtpollard | hi chbae | 10:46 |
chbae | hello CTtppollard | 10:46 |
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wesam | is there a way to connect to CAN from AGL | 14:51 |
wesam | and 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 |
jbocklage | wesam: I guess, there is no "AGL-way" to do it currently. Maybe you can use the cantools. | 15:08 |
jbocklage | wesam: bitbake can-utils :) | 15:09 |
jbocklage | of cause you need CAN drivers for your Hardware... | 15:10 |
wesam | is there good documentation for that? | 15:36 |
wesam | jbocklage: ^ | 15:36 |
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jbocklage | wesam: can-utils: https://discuss.cantact.io/t/using-can-utils/24 this should do | 16:01 |
jbocklage | what HW are you using? | 16:01 |
wesam | right now is intel minnowboard | 16:02 |
wesam | we just want to see if AGL is good for what we want to do before we go get a car with it | 16:03 |
CTtpollard | There is no CAN connector on the minnow? | 16:05 |
CTtpollard | well, embedded anyway | 16:05 |
jbocklage | I guess, there is no CAN on the board. So you have to use a USB2CAN adaptor... | 16:07 |
CTtpollard | if you're wanting a board with embedded CAN wesam you might want to look at Renesas | 16:07 |
CTtpollard | but yes USB2CAN is an option, the minnow might even have a CAN cape (like raspi hat) | 16:08 |
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CTtpollard | oh, minnow call them Lures | 16:08 |
jbocklage | but I don't see any "can lures" | 16:10 |
CTtpollard | http://www.elinux.org/Minnowboard:Automotive_Lure but yes, not much info | 16:11 |
jbocklage | Microchip 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 up | 16:12 | |
CTtpollard | wait, the expansion port does support CAN natively by the looks of it http://elinux.org/Minnowboard:Expansion_Interfaces#CAN | 16:12 |
wesam | oh does it | 16:14 |
wesam | so you can grab can data from a board | 16:14 |
wesam | i thought you can only grab from cars | 16:14 |
wesam | I need to a lot more research on CAN lol | 16:14 |
jbocklage | wesam: do you know CAN? | 16:14 |
wesam | beside some ppts i looked into, not really | 16:15 |
wesam | what would a USB2CAN adapter do | 16:15 |
jbocklage | the 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 connector | 16:17 |
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jbocklage | which is basically CANhigh and CANlow | 16:17 |
RzR | I am not sure you can find a CAN lure to buy for minnow | 16:17 |
wesam | will look if i can find a CAN lure | 16:18 |
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wesam | So once i get CAN on the minnowboard and can-utils on the board, i should be good | 16:19 |
wesam | is there a bb recipe for can-utils | 16:19 |
jbocklage | wesam: 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 |
wesam | https://layers.openembedded.org/layerindex/recipe/834/ | 16:20 |
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wesam | right | 16:20 |
jbocklage | [16:09:44] <jbocklage> wesam: bitbake can-utils :) | 16:20 |
CTtpollard | https://layers.openembedded.org/layerindex/branch/master/recipes/?q=CAN | 16:20 |
CTtpollard | but yes, meta-oe | 16:21 |
wesam | jbocklage: i want to try to grab some metrics from the car | 16:21 |
wesam | for my ignorance, will can-util work with python or do you i need a python package | 16:21 |
jbocklage | and you have the info how to get them and how to interpret the messages? | 16:21 |
wesam | or should i use c | 16:21 |
wesam | well i should | 16:21 |
CTtpollard | There's a python module for CAN, I suspect you'll be dealing with C though | 16:22 |
jbocklage | interesting. why? Because this is well hidden by the car manufactors (well, OBD2 is (kinda) open) | 16:22 |
jbocklage | you want to use socketcan | 16:23 |
wesam | right, we are going start with what we can see with OBD2 | 16:23 |
wesam | which isnt much ik, but everything is a proof of concept as of right now | 16:24 |
wesam | whats socketcan | 16:24 |
wesam | CTtpollard: ya c seems the way to go | 16:24 |
jbocklage | wesam: https://en.wikipedia.org/wiki/SocketCAN | 16:24 |
wesam | jbocklage: thanks, socketCan will help a ton | 16:26 |
jbocklage | and you need this: https://www.sparkfun.com/products/10087 | 16:26 |
jbocklage | and you need the CAN speed of the car... 25kbps, 50, 100, 500... | 16:27 |
jbocklage | the fun starts when you connect and everything is working and you get TRILLIANSBILLONSMILLIONS of CAN frames/s ;))) | 16:28 |
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wesam | lol i cant wait until i get to that point | 16:29 |
RzR | wesam, I have a device with this unit http://elinux.org/FRI#CAN | 16:29 |
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RzR | but never connected to anything yet | 16:29 |
wesam | RzR: you mean you have intel minnow board with that unit? | 16:30 |
RzR | no I that's different | 16:31 |
RzR | but EG20T is from intel | 16:31 |
RzR | so if you can't find a lure for minnow | 16:31 |
wesam | ahh, i see what you mean | 16:31 |
jbocklage | I guess, he only needs to use PIN 28 and 30 of the minnowboard extension header (and place a 120ohm resistor between it) | 16:31 |
wesam | that could help | 16:31 |
RzR | check for EG20T or use and usb adapter | 16:31 |
jbocklage | since it is on the HW, there is a good chance that the Kernel supports it | 16:32 |
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wesam | CTtpollard: oh thanks for the links, just seen your link saying that minnowboard those have a CAN interface | 16:44 |
wesam | So i guess I will get canutils on AGL and start trying to mess with that | 16:45 |
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wesam | so i am rebuilding AGL on my mac thats running ubuntu | 20:18 |
wesam | cause screw you Docker and Mac | 20:18 |
wesam | and omg its running so much quicker, its doing 8 tasks at once instead of 4 | 20:18 |
wesam | yay hyperthreading | 20:18 |
wesam | oopps i mean my laptop thats running ubuntu***** | 20:31 |
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