rs485 on imx6ul 4.9.51 version

ganesh_k — Wed, 08 Jan 2020 15:51:11 GMT

Hello everyone,

Greeting of the day...

I have seen the linux-imx-4.9.51, in that there is no support of rs485 half duplex on linux-imx4.9.51 kernel version.

Can anyone provide the patch to rs485 half duplex on this kernel version.

Thanks & Regards

Ganesh

Re: rs485 on imx6ul 4.9.51 version

weidong_sun — Thu, 09 Jan 2020 07:08:23 GMT

Hi Ganesh,

I.MX UART for RS485 function is supported by imx.c , which is in path drivers/tty/serial/imx.c , which realize how to control receiving and transmitting data via CTS pin(dce) or RTS(dte).

here is imx.c source code:

imx.c\serial\tty\drivers - linux-imx - i.MX Linux kernel

Here is discussions on RS485:

Strange RS485 latency of disabling driver.

https://community.nxp.com/message/1050866

Hope these informatin can help you.

Have a nice day!

BR,

Weidong

topic Re: rs485 on imx6ul 4.9.51 version in i.MX Processors

rs485 on imx6ul 4.9.51 version

Re: rs485 on imx6ul 4.9.51 version