I am using SAMA5D27-SOM1-EK1 board.
I am using Linux 4.14 kernel version build with Yocto project. I have build core-image-minimal distribution.
This is my board device-tree :
https://github.com/torvalds/linux/blob/ ... om1_ek.dts
I want to set up RS485 serial communication.
I do not want to use RTS Pin , jusr RX / TX / GND.
I want to know, in detailed steps :
how to do that ?
Which drivers must be build into my kernel for that ?
Which PINs I must use from my board ? ( I only need RX, TX, GND lines )
Which node in the device-tree is related to RS485 communication ?
Any modifications to do for the device-tree ?
Thank you.
RS485 serial communication for SAMA5D27-SOM1-EK1
Moderator: nferre
- blue_z
- Location: USA
Post
The RTS line would control a transceiver in a half-duplex configuration.
Are you going to use full-duplex mode?
Regards
Re: RS485 serial communication for SAMA5D27-SOM1-EK1
Your exclusion is an incomplete specification (i.e. it's not "detailed").ghasseenn wrote: ↑I want to set up RS485 serial communication.
I do not want to use RTS Pin , jusr RX / TX / GND.
I want to know, in detailed steps :
The RTS line would control a transceiver in a half-duplex configuration.
Are you going to use full-duplex mode?
Regards
Post
Re: RS485 serial communication for SAMA5D27-SOM1-EK1
I want to use half-duplex modeblue_z wrote: ↑Tue Jun 30, 2020 10:45 pmYour exclusion is an incomplete specification (i.e. it's not "detailed").ghasseenn wrote: ↑I want to set up RS485 serial communication.
I do not want to use RTS Pin , jusr RX / TX / GND.
I want to know, in detailed steps :
The RTS line would control a transceiver in a half-duplex configuration.
Are you going to use full-duplex mode?
Regards
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