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Is there a bus protocol similar to CAN bus except with ethernet sized frames?
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Topic: Is there a bus protocol similar to CAN bus except with ethernet sized frames? (Read 762 times)
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e100
Frequent Contributor
Posts: 576
Is there a bus protocol similar to CAN bus except with ethernet sized frames?
«
on:
November 18, 2019, 09:47:47 am »
Not point to point like SLIP, but a multi-device bus.
In the olden days there was 10base2 over coax but that disappeared long ago. Is there a modern equivalent?
«
Last Edit: November 18, 2019, 01:41:26 pm by e100
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HwAoRrDk
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Re: Is there a bus protocol similar to CAN bus except with ethernet sized frames?
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Reply #1 on:
November 18, 2019, 10:44:08 am »
Well, there is CAN FD, which can have 64 bytes of payload data per message, but that is only equivalent to the least amount of data an ethernet frame can carry.
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max_torque
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Re: Is there a bus protocol similar to CAN bus except with ethernet sized frames?
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Reply #2 on:
November 18, 2019, 06:15:43 pm »
RS-485 with your own protocol / packetisation?
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MagicSmoker
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Re: Is there a bus protocol similar to CAN bus except with ethernet sized frames?
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Reply #3 on:
November 18, 2019, 07:04:29 pm »
There's nothing stopping you from using CAN (or RS-485) physical layer components and writing your own ethernet-like protocol. Whether the amount of work required is justified here I leave to you to decide.
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rounin
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Re: Is there a bus protocol similar to CAN bus except with ethernet sized frames?
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Reply #4 on:
November 18, 2019, 10:07:10 pm »
Flexray is somewhere in the middle. 254 byte payload, looks to be time triggered instead of CSMA, ~10Mbps.
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Last Edit: November 18, 2019, 10:08:58 pm by rounin
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langwadt
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Re: Is there a bus protocol similar to CAN bus except with ethernet sized frames?
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Reply #5 on:
November 18, 2019, 10:29:56 pm »
CAN and
https://en.wikipedia.org/wiki/ISO_15765-2
?
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Is there a bus protocol similar to CAN bus except with ethernet sized frames?
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