Comments (10)
lvsecoto
commented on August 19, 2024
2
The example code in this repo doesn't use
serialPort.open. I tried puttingserialPort.configureafterfinal port = SerialPort(address);but still ran into the same issue. What's weird is refreshing the app made it sometimes work, but most of the time threw the same error. I'll keep playing around on my end though.
Try this
final port = SerialPort(address);
port.open(...);
port.configure =...
from flutter_libserialport.
ehagerty
commented on August 19, 2024
1
Hi, thanks so much for this package and the example!
Forgive me for being thick:
port.open(...);
port.configure =...
Can someone point me at a tutorial to help me learn what the obvious replacement is here for the '...' ellipsis?
Stay safe out there :-)
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lvsecoto
commented on August 19, 2024
I got the same issues. Failed to open port，and it return –2.
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lvsecoto
commented on August 19, 2024
I have found the solution, set serialPort.configure after serialPort.open
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jpnurmi
commented on August 19, 2024
@lvsecoto Thanks for spending the time to figure it out! Sounds like that an assertion could help to catch the problem.
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commented on August 19, 2024
The example code in this repo doesn't use serialPort.open. I tried putting serialPort.configure after final port = SerialPort(address); but still ran into the same issue. What's weird is refreshing the app made it sometimes work, but most of the time threw the same error. I'll keep playing around on my end though.
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LiveRock
commented on August 19, 2024
══╡ EXCEPTION CAUGHT BY GESTURE ╞═══════════════════════════════════════════════════════════════════
The following SerialPortError was thrown while handling a gesture:
Invalid argument, errno = 22
When the exception was thrown, this was the stack:
#0 Util.call (package:libserialport/src/util.dart:39:7)
#1 Util.toInt (package:libserialport/src/util.dart:77:16)
#2 _SerialPortImpl.busNumber (package:libserialport/src/port.dart:284:17)
#3 new SerialPortDataSource.<anonymous closure> (package:vt_meter_app/sections/meters/meters.dart:301:40)
#4 MappedListIterable.elementAt (dart:_internal/iterable.dart:412:31)
#5 ListIterator.moveNext (dart:_internal/iterable.dart:341:26)
#6 new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:188:27)
#7 new _GrowableList.of (dart:core-patch/growable_array.dart:150:28)
#8 new List.of (dart:core-patch/array_patch.dart:50:28)
#9 ListIterable.toList (dart:_internal/iterable.dart:212:44)
#10 new SerialPortDataSource (package:vt_meter_app/sections/meters/meters.dart:303:10)
#11 masterPaneMeters.<anonymous closure>.<anonymous closure>.<anonymous closure> (package:vt_meter_app/sections/meters/meters.dart:166:60)
#12 State.setState (package:flutter/src/widgets/framework.dart:1088:30)
#13 masterPaneMeters.<anonymous closure>.<anonymous closure> (package:vt_meter_app/sections/meters/meters.dart:161:53)
#14 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:989:21)
#15 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
#16 TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:607:11)
#17 BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:296:5)
#18 BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:267:7)
#19 GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:157:27)
#20 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:443:20)
#21 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:419:22)
#22 RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:287:11)
#23 GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:374:7)
#24 GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:338:5)
#25 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:296:7)
#26 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:279:7)
#30 _invoke1 (dart:ui/hooks.dart:182:10)
#31 PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:282:7)
#32 _dispatchPointerDataPacket (dart:ui/hooks.dart:96:31)
(elided 3 frames from dart:async)
I am still getting this error. What I want to do is just tor refresh the serial port list with
availablePorts = SerialPort.availablePorts;
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SerendipityMatthew
commented on August 19, 2024
The example code in this repo doesn't use
serialPort.open. I tried puttingserialPort.configureafterfinal port = SerialPort(address);but still ran into the same issue. What's weird is refreshing the app made it sometimes work, but most of the time threw the same error. I'll keep playing around on my end though.Try this
final port = SerialPort(address); port.open(...); port.configure =...
thanks a lot, it works for me. I try it on MacOS, 11.4
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jiangchunyu
commented on August 19, 2024
SerialPortConfig? config=_serialPort?.config;
config?.baudRate=hdevice.baudRate;//波特率
config?.stopBits = 1;//停止位
config?.bits=8;//数据位
config?.parity=0;//校验位
config?.parity=0;
if(config!=null){
LogUtil.d(" config ${config}", tag: TAG);
_serialPort?.config=config;
}
这个方式可以。不报错
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ehagerty
commented on August 19, 2024
@jiangchunyu
谢谢你。您能否分享您的代码，以便我看看我的代码有什么不同？
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