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 Post subject: CAN termination
PostPosted: Thu Feb 01, 2018 4:46 am 
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Joined: Thu Feb 01, 2018 3:43 am
Posts: 1
Does Carberry do CAN bus termination and if it does, can it be turned on or off from software?


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 Post subject: Re: CAN termination
PostPosted: Wed Oct 10, 2018 5:10 pm 
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Joined: Thu Mar 10, 2016 10:34 am
Posts: 132
Hi,

No is not terminated and cannot be done from software, you need to put a 120 ohm resistor between CAN H and CAN L

thanks and best regards


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 Post subject: Re: CAN termination
PostPosted: Tue Mar 24, 2020 7:13 pm 
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Joined: Tue Mar 24, 2020 6:59 pm
Posts: 1
Hi.... Note that the terminating resistors do DC-load the signal.Having a terminating resistor matching the characteristic impedance is for AC functionality - making sure there are no signal bounces.
For a very short cable, a single 120 ohm resistor would normally work. But may not be needed depending on propagation delay compared to your transfer rate.For short cables, you can often get by without any termination unless the baudrate is very high.
How about your engineers verifies explicitly what reflections they have in the cable? No need to have extra loads if there aren't really any problems with reflections - less load is less power wasted.

order pcb with components


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 Post subject: Re: CAN termination
PostPosted: Sun Apr 19, 2020 9:14 am 
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Joined: Sun Apr 19, 2020 9:03 am
Posts: 3
Unfortunately, there is not much information about this device ... Now there are few posts on the forum, I like Carberry, but sometimes I can not find answers to my questions.:(


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