Can I use TJA1040 to communicate with a Single Wire CAN device ?

[danielflor]

Can I use one of the lines of CAN HS (CANH for example) to communicate on a Single Wire CAN bus in a compatible way ? By "compatible" I mean that the whole system should support valid SAEJ2411 baud rates, If so, what is the recommended way of doing it ? Specifically, should CANL be left floating, connected to ground, or something else?

[PetrS]

Hi,

no, you cannot. Single Wire CAN is different physical layer.

You need to use single wire transceiver; MC33897 | Single-Wire Can Transceiver | NXP 

BR, Petr