Wiren Board 4: Модуль расширения RS-232/en: различия между версиями
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(Новая страница: «The port is available in the system as») |
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| (не показано 12 промежуточных версий этого же участника) | |||
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<languages/> | <languages/> | ||
== | == Pinout == | ||
The RS-232 signals are output to the terminals of the O1-O3 extension module. | |||
Pinout: | |||
* O1 - GND | * O1 - GND | ||
| Строка 11: | Строка 11: | ||
* O3 - RX | * 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 <pre> /boot/uEnv.txt </pre> file | |||
you need to replace the line | |||
<pre> | <pre> | ||
| Строка 27: | Строка 27: | ||
</pre> | </pre> | ||
with | |||
<pre> | <pre> | ||
| Строка 33: | Строка 33: | ||
</pre> | </pre> | ||
and '''reboot controller''' by command | |||
<pre> | <pre> | ||
| Строка 40: | Строка 40: | ||
See [[Просмотр файлов контроллера с компьютера/en| 1]] and [[SSH/en ]]. | |||
== | == Operation == | ||
The port is available in the system as | |||
<pre> | <pre> | ||
/dev/ttyNSC1 | /dev/ttyNSC1 | ||
</pre> | </pre> | ||
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