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Merge pull request #763 from meshtastic/revert-753-fix-rtsdtr-windows

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Revert "Work around RTS/DTR serial reset issues on Windows"
This commit is contained in:
Ben Meadors
2025-04-15 16:37:23 -05:00
committed by GitHub
parent ee0f73a20e dfc9547ffc
commit ec78f62992
1 changed files with 4 additions and 13 deletions
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17
meshtastic/serial_interface.py
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@@ -46,12 +46,7 @@ class SerialInterface(StreamInterface):
logging.debug(f"Connecting to {self.devPath}")
# set port to None to prevent automatically opening
self.stream = serial.Serial(
port=None, baudrate=115200, exclusive=True, timeout=0.5, write_timeout=0
)
# first we need to clear HUPCL (UNIX) or clear RTS/DTR (Windows) so the device will not reboot based on RTS and/or DTR
# first we need to set the HUPCL so the device will not reboot based on RTS and/or DTR
# see https://github.com/pyserial/pyserial/issues/124
if platform.system() != "Windows":
with open(self.devPath, encoding="utf8") as f:
@@ -60,14 +55,10 @@ class SerialInterface(StreamInterface):
termios.tcsetattr(f, termios.TCSAFLUSH, attrs)
f.close()
time.sleep(0.1)
else:
self.stream.rts = 0
self.stream.dtr = 0
# set proper port and open now that we've worked-around RTS/DTR issues
self.stream.port = self.devPath
self.stream.open()
self.stream = serial.Serial(
self.devPath, 115200, exclusive=True, timeout=0.5, write_timeout=0
)
self.stream.flush() # type: ignore[attr-defined]
time.sleep(0.1)