How to change baud rate in slot#1 UART

1

My customer bought MangOH green board and RENFELL UART RS232-4W (0107-03-R2.1).
By their tutorial, customer succeeded additional UART via USB (FTDI). But the baud rate is still default 9600bps.
Customer asked baud rate changing process to RENFELL but not receive any answer yet.
Do you know good procedure to set baud rate 115200bps?

2

what is the AT!MAPUART?
Is it using linux data mode or console mode for UART1?

3

No, I do not use UART port.
To use this RS232 4 wire slot card, I enabled FTDI interface as below.
modprobe ftdi_sio

So, I saw this unit as ttyUSB0.

4

it is still connecting to UART1 of module, right?

what is the AT!MAPUART?
Is it using linux data mode or console mode for UART1?

if you are using UART1 as linux data mode, you will see /dev/ttyHS0 in your module and you need to control the module baud rate in your application.

e.g.

stty -F /dev/ttyHS0 raw 115200 -crtscts

microcom /dev/ttyHS0 -s 115200

5

It’s working fine, thanks.