783bfacee8
Version 3.0 of python-serial introduced an updated API, we may as well use it. This change also uses context-managers for dealing with UARTs as they are less error-prone and the code is much cleaner/shorter.
35 lines
936 B
ReStructuredText
35 lines
936 B
ReStructuredText
:mod:`UART` --- UART communications interface
|
|
---------------------------------------------
|
|
|
|
UART functionality of a BeagleBone using Python. Generally used to set up
|
|
and grant access to a given UART device, which will then be accessed by
|
|
other software or modules (e.g. `pyserial`)::
|
|
|
|
sudo pip install pyserial
|
|
|
|
Example::
|
|
|
|
import Adafruit_BBIO.UART as UART
|
|
import serial
|
|
|
|
UART.setup("UART1")
|
|
|
|
with serial.Serial(port = "/dev/ttyO1", baudrate=9600) as ser:
|
|
print("Serial is open!")
|
|
ser.write(b"Hello World!")
|
|
|
|
.. module:: Adafruit_BBIO.UART
|
|
|
|
.. function:: setup_uart(channel)
|
|
|
|
Set up and start the UART channel. This function will effectively export
|
|
the given UART so that it can be accessed by other software that controls
|
|
its serial lines.
|
|
|
|
:param str channel: UART channel to set up. One of "UART1", "UART2",
|
|
"UART4" or "UART5"
|
|
|
|
.. function:: cleanup()
|
|
|
|
Cleans up the UART.
|
|
|