mirror of
https://github.com/DreamSourceLab/DSView.git
synced 2025-01-13 13:32:53 +08:00
41 lines
1.7 KiB
Python
Executable File
41 lines
1.7 KiB
Python
Executable File
##
|
|
## This file is part of the libsigrokdecode project.
|
|
##
|
|
## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
|
|
##
|
|
## This program is free software; you can redistribute it and/or modify
|
|
## it under the terms of the GNU General Public License as published by
|
|
## the Free Software Foundation; either version 2 of the License, or
|
|
## (at your option) any later version.
|
|
##
|
|
## This program is distributed in the hope that it will be useful,
|
|
## but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
## GNU General Public License for more details.
|
|
##
|
|
## You should have received a copy of the GNU General Public License
|
|
## along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
##
|
|
|
|
'''
|
|
UART (Universal Asynchronous Receiver Transmitter) is a simple serial
|
|
communication protocol which allows two devices to talk to each other.
|
|
|
|
This decoder should work on all "UART-like" async protocols with one
|
|
start bit (0), 5-9 databits, an (optional) parity bit, and one or more
|
|
stop bits (1), in this order.
|
|
|
|
It can be run on one signal line (RX or TX) only, or on two lines (RX + TX).
|
|
|
|
There are various standards for the physical layer specification of the
|
|
signals, including RS232, (TTL) UART, RS485, and others. However, the logic
|
|
level of the respective pins is only relevant when acquiring the data via
|
|
a logic analyzer (you have to select the correct logic analyzer and/or
|
|
the correct place where to probe). Once the data is in digital form and
|
|
matches the "UART" description above, this protocol decoder can work with
|
|
it though, no matter whether the source was on TTL UART levels, or RS232,
|
|
or others.
|
|
'''
|
|
|
|
from .pd import Decoder
|