Wiren Board 4: Модуль расширения RS-232/en: различия между версиями
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The port is available in the system as | |||
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Текущая версия на 20:43, 19 июля 2019
Pinout
The RS-232 signals are output to the terminals of the O1-O3 extension module.
Pinout:
- O1 - GND
- O2 - TX
- O3 - RX
Multiplexing
The RS-232 module is multiplexed with an uninsulated RS-485 port. Their simultaneous operation is not allowed
Configuration
To work with RS-232, the Wiren Board kernel must be configured in a specific way.
In the
/boot/uEnv.txt
file
you need to replace the line
fdt_file=/boot/dtbs/imx23-wirenboard41.dtb
with
fdt_file=/boot/dtbs/imx23-wirenboard41-rs232.dtb
and reboot controller by command
reboot
Operation
The port is available in the system as
/dev/ttyNSC1