kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
139 wiersze
4.5 KiB
Python
139 wiersze
4.5 KiB
Python
# NanoVNASaver
|
|
#
|
|
# A python program to view and export Touchstone data from a NanoVNA
|
|
# Copyright (C) 2019, 2020 Rune B. Broberg
|
|
# Copyright (C) 2020 NanoVNA-Saver Authors
|
|
#
|
|
# 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 3 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 <https://www.gnu.org/licenses/>.
|
|
import logging
|
|
import platform
|
|
from typing import List, Tuple
|
|
from collections import namedtuple
|
|
|
|
import serial
|
|
from serial.tools import list_ports
|
|
|
|
from NanoVNASaver.Hardware.VNA import VNA
|
|
from NanoVNASaver.Hardware.AVNA import AVNA
|
|
from NanoVNASaver.Hardware.NanoVNA_F import NanoVNA_F
|
|
from NanoVNASaver.Hardware.NanoVNA_H import NanoVNA_H, NanoVNA_H4
|
|
from NanoVNASaver.Hardware.NanoVNA import NanoVNA
|
|
from NanoVNASaver.Hardware.NanoVNA_V2 import NanoVNAV2
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
Device = namedtuple("Device", "vid pid name")
|
|
|
|
DEVICETYPES = (
|
|
Device(0x0483, 0x5740, "NanoVNA"),
|
|
Device(0x16c0, 0x0483, "AVNA"),
|
|
Device(0x04b4, 0x0008, "NanaVNA-V2"),
|
|
)
|
|
|
|
|
|
# The USB Driver for NanoVNA V2 seems to deliver an
|
|
# incompatible hardware info like:
|
|
# 'PORTS\\VID_04B4&PID_0008\\DEMO'
|
|
# This function will fix it.
|
|
def _fix_v2_hwinfo(dev):
|
|
if dev.hwid == r'PORTS\VID_04B4&PID_0008\DEMO':
|
|
dev.vid, dev.pid = 0x04b4, 0x0008
|
|
return dev
|
|
|
|
|
|
# Get list of interfaces with VNAs connected
|
|
def get_interfaces() -> List[Tuple[str, str]]:
|
|
return_ports = []
|
|
for d in list_ports.comports():
|
|
if platform.system() == 'Windows' and d.vid is None:
|
|
d = _fix_v2_hwinfo(d)
|
|
for t in DEVICETYPES:
|
|
if d.vid == t.vid and d.pid == t.pid:
|
|
port = d.device
|
|
logger.info("Found %s (%04x %04x) on port %s",
|
|
t.name, d.vid, d.pid, d.device)
|
|
return_ports.append((port, f"{port}({t.name})"))
|
|
return return_ports
|
|
|
|
|
|
def get_VNA(app, serial_port: serial.Serial) -> 'VNA':
|
|
logger.info("Finding correct VNA type...")
|
|
|
|
for _ in range(3):
|
|
vnaType = detect_version(serial_port)
|
|
if vnaType != "unknown":
|
|
break
|
|
|
|
serial_port.timeout = 0.2
|
|
|
|
if vnaType == 'nanovnav2':
|
|
logger.info("Type: NanoVNA-V2")
|
|
return NanoVNAV2(app, serial_port)
|
|
|
|
logger.info("Finding firmware variant...")
|
|
tmp_vna = VNA(app, serial_port)
|
|
tmp_vna.flushSerialBuffers()
|
|
firmware = tmp_vna.readFirmware()
|
|
if firmware.find("AVNA + Teensy") > 0:
|
|
logger.info("Type: AVNA")
|
|
return AVNA(app, serial_port)
|
|
if firmware.find("NanoVNA-H 4") > 0:
|
|
logger.info("Type: NanoVNA-H4")
|
|
vna = NanoVNA_H4(app, serial_port)
|
|
if firmware.find("sweep_points 201") > 0:
|
|
logger.info("VNA has 201 datapoints capability")
|
|
vna._datapoints = (201, 101)
|
|
return vna
|
|
if firmware.find("NanoVNA-H") > 0:
|
|
logger.info("Type: NanoVNA-H")
|
|
vna = NanoVNA_H(app, serial_port)
|
|
if firmware.find("sweep_points 201") > 0:
|
|
logger.info("VNA has 201 datapoints capability")
|
|
vna._datapoints = (201, 101)
|
|
return vna
|
|
if firmware.find("NanoVNA-F") > 0:
|
|
logger.info("Type: NanoVNA-F")
|
|
return NanoVNA_F(app, serial_port)
|
|
if firmware.find("NanoVNA") > 0:
|
|
logger.info("Type: Generic NanoVNA")
|
|
return NanoVNA(app, serial_port)
|
|
logger.warning("Did not recognize NanoVNA type from firmware.")
|
|
return NanoVNA(app, serial_port)
|
|
|
|
|
|
def detect_version(serialPort: serial.Serial) -> str:
|
|
serialPort.timeout = 0.1
|
|
|
|
# drain any outstanding data in the serial incoming buffer
|
|
data = "a"
|
|
while len(data) != 0:
|
|
data = serialPort.read(128)
|
|
|
|
# send a \r and see what we get
|
|
serialPort.write(b"\r")
|
|
|
|
# will wait up to 0.1 seconds
|
|
data = serialPort.readline().decode('ascii')
|
|
|
|
if data == 'ch> ':
|
|
# this is an original nanovna
|
|
return 'nanovna'
|
|
|
|
if data == '2':
|
|
# this is a nanovna v2
|
|
return 'nanovnav2'
|
|
|
|
logger.error('Unknown VNA type: hardware responded to CR with: %s', data)
|
|
return 'unknown'
|