kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
54 wiersze
1.8 KiB
Python
54 wiersze
1.8 KiB
Python
# NanoVNASaver
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#
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# A python program to view and export Touchstone data from a NanoVNA
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# Copyright (C) 2019, 2020 Rune B. Broberg
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# Copyright (C) 2020,2021 NanoVNA-Saver Authors
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import logging
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from threading import Lock
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import serial
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logger = logging.getLogger(__name__)
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def drain_serial(serial_port: serial.Serial):
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"""drain up to 64k outstanding data in the serial incoming buffer"""
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# logger.debug("Draining: %s", serial_port)
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timeout = serial_port.timeout
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serial_port.timeout = 0.05
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for _ in range(512):
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cnt = len(serial_port.read(128))
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if not cnt:
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serial_port.timeout = timeout
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return
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serial_port.timeout = timeout
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logger.warning("unable to drain all data")
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class Interface(serial.Serial):
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def __init__(self, interface_type: str, comment, *args, **kwargs):
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super().__init__(*args, **kwargs)
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assert interface_type in {'serial', 'usb', 'bt', 'network'}
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self.type = interface_type
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self.comment = comment
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self.port = None
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self.baudrate = 115200
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self.timeout = 0.05
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self.lock = Lock()
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def __str__(self):
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return f"{self.port} ({self.comment})"
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