About the CAN controller.

cliftonk
Posts: 7
Joined: Sat Jun 10, 2017 8:43 pm

Re: About the CAN controller.

Postby cliftonk » Sat Dec 02, 2017 10:57 pm

I have a basic question:

1) How can I validate and test the CAN circuitry in the ESP32 DevKitC with only using a single DevKitC module?

I would like to validate that CAN works in the ESP32 DevKitC before buying a lot of other modules.

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rudi ;-)
Posts: 1134
Joined: Fri Nov 13, 2015 3:25 pm

Re: About the CAN controller.

Postby rudi ;-) » Wed Dec 06, 2017 3:02 pm

cliftonk wrote:The CAN chip on the CAN board that I have, the VP230, does appear to be a SN65HVD23x 3.3V, when I do a google search.


the CAN board which you have, which CAN board you use for this ( have you a link ? )
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rudi ;-)
Posts: 1134
Joined: Fri Nov 13, 2015 3:25 pm

Re: About the CAN controller.

Postby rudi ;-) » Wed Dec 06, 2017 3:08 pm

cliftonk wrote:I have a basic question:

1) How can I validate and test the CAN circuitry in the ESP32 DevKitC with only using a single DevKitC module?

I would like to validate that CAN works in the ESP32 DevKitC before buying a lot of other modules.


how looks your CAN circuitry?

to 1)
CAN tester, oscilloscope, logic analyzer

perhabs you have a look into basic first here or there or as video this helps to understand for pulls and terminate the CAN line, and whats happend, if this is not done ( some transceivers going to sleep )
-------------------------------------
love it, change it or leave it.
-------------------------------------
問候飛出去的朋友遍全球魯迪

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