SecureCRT连接时提示：Unable to open serial port COM2，是设置错误造成的，解决方法如下：1、首先在电脑中，打开SecureCRT软件，如下图所示。2、进入软件页面后，点击下图所示位置。3、然后在打开的窗口中，选择协议为Serial，如下图所示。4、端口就选择电脑的COM口，如果不知道你电脑的COM口，可以进...
当你遇到“unable to open connection to com”或“unable to open serial port”的问题时,这通常意味着你的程序或系统无法访问指定的串行端口。以下是针对这个问题的一些解决步骤,我将按照你的提示进行分点回答,并在必要时提供代码片段: 检查COM端口是否被占用或存在冲突: 你可以使用系统工具来检查哪些程序正在使用...
Unable to open serial port /dev/ttyUSB0 权限不够 解决办法: 通过增加udev规则来实现。步骤如下: 创建文件/etc/udev/rules.d/70-ttyusb.rules 在文件内增加一行 KERNEL=="ttyUSB[0-9]*", MODE="0666" 重新插入USB转串口设备,普通用户就有权限访问了。 2.或者打开cutecom等串口调试工具 没有关闭...
1.确保有该硬件 2.看该硬件的com口是多少，如果你非要用com1可以改的（设备管理器，找到对应com口，右键属性，端口设置，高级，COM端口号可以改）
ROS在串口通信时,当我们插入USB后,catkin_make之后,报错: highlighter- gradle IO Exception (13): Permission denied,file/tmp/binarydeb/ros-noetic-serial-1.2.1/src/impl/unix.cc, line151.[ERROR] [1705845384.528602780]: Unable to open port
Hi! We are using the CP210x USB to UART Bridge VCP Driver to communicate with a piece of hardware via Serial Port communication. It had been working for us up until a couple of weeks ago. Now, we are unable to open a Serial Port with the Serial Device us...
Whenever I install the MicroPython to my Raspberry Pi Pico, Thonny returns this message: Unable to connect to COM5: could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) If you have serial connection to the device...
I made a minimalistic example using your library: import 'package:libserialport/libserialport.dart'; import 'dart:typed_data'; void main(List<String> arguments) { final port = SerialPort("/dev/pts/3"); if (!port.openReadWrite()) { print(...
Unable to keep serial port open after reset - USBD_VCOM library User21105 Level 1 3 Feb 2021 Hi all, I'm new to microcontroller programming.I'm writing an app based on the USBD_VCOM library, running on XMC4800 Relax kit.I'm using Putty and Windows10 as master for my US...
"Exception from HRESULT: 0x800A03EC" Unable to open excel file "Failed to compare two elements in the array." "Object reference not set to an instance of an object" error which points to my "htmlparser.Parse(sr)" "Please wait..." while file is uploading? "The network path was not...