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ADM2486 with i.MX8M plus


I want to use ADM2486 with i.MX8M Plus. But I'm not familiar with RS-485.

Please let me know how to control "RE".

Is it OK to connect RE and DE, or do I have to control using GPIO?

I'll use Linux Ubuntu.

added OS info.
[edited by: ms-ms at 8:54 AM (GMT -5) on 10 Nov 2021]