未检测到Arduino端口，也无法将其作为root运行。
未检测到Arduino端口，也无法将其作为root运行。
提问于 2021-06-13 15:25:15
我有两个Ubuntu，一个是18.04，另一个是20.04，我对Arduino板也有一些问题，我尝试了这指令(引脚连接和.)：
但是，Arduino IDE无法使用Arduino检测STM32f013c8t6板，因此我试图使用这 post命令查找端口的连接，如下所示：
sudo usermod -a -G dialout $USER
ls -al /dev/USB*
ls: cannot access '/dev/USB*': No such file or directory通过尝试其他一些贴图：
lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:0821 Realtek Semiconductor Corp.
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 174f:2408 Syntek
Bus 001 Device 006: ID 0483:3748 STMicroelectronics ST-LINK/V2
Bus 001 Device 002: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub通过调用lsb -v -d命令，我得到了以下结果：
lsusb -v -d 0483:3748
Bus 001 Device 006: ID 0483:3748 STMicroelectronics ST-LINK/V2
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0483 STMicroelectronics
idProduct 0x3748 ST-LINK/V2
bcdDevice 1.00
iManufacturer 1 STMicroelectronics
iProduct 2 STM32 STLink
iSerial 3 &/26MCKN
bNumConfigsudo journalctl -furations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 4 ST Link
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0000
(Bus Powered)因此无法看到Arduino上的端口连接，它是通过snap安装的，如下所示：
另外，尝试以root用户的身份运行Arduino，但我得到的错误如下：
sudo arduino
mkdir: cannot create directory '/run/user/0': Permission denied
(process:22688): dconf-CRITICAL **: 19:29:51.179: unable to create directory '/run/user/0/snap.arduino/dconf': Permission denied. dconf will not work properly.
(process:22688): dconf-CRITICAL **: 19:29:51.179: unable to create directory '/run/user/0/snap.arduino/dconf': Permission denied. dconf will not work properly.
No protocol specified
(process:22688): dconf-CRITICAL **: 19:29:51.180: unable to create directorit is not worling!.y '/run/user/0/snap.arduino/dconf': Permission denied. dconf will not work properly.
Picked up JAVA_TOOL_OPTIONS:
Set log4j store directory /root/snap/arduino/56/.arduino15
No protocol specified
java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable.
at java.desktop/sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at java.desktop/sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:102)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.desktop/sun.awt.X11GraphicsEnvironment.(X11GraphicsEnvironment.java:61)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:315)
at java.desktop/java.awt.GraphicsEnvironment$LocalGE.createGE(GraphicsEnvironment.java:101)
at java.desktop/java.awt.GraphicsEnvironment$LocalGE.(GraphicsEnvironment.java:83)
at java.desktop/java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:129)
at java.desktop/sun.awt.X11.XToolkit.(XToolkit.java:231)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:315)
at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:588)
at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:583)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:582)
at java.desktop/java.awt.SystemColor.updateSystemColors(SystemColor.java:473)
at java.desktop/java.awt.SystemColor.(SystemColor.java:465)
at processing.app.Theme.init(Theme.java:343)
at processing.app.Base.(Base.java:250)
at processing.app.Base.main(Base.java:150)因此，我想这是不起作用的，因为通过snap安装Arduino，并通过sudo snap connect arduino:removable-media命令正确地修复它，但是我再次得到了mkdir: cannot create directory '/run/user/0': Permission denied错误，所以我在这里问：
Update1:
基于the的第一个注释，我尝试了sudo journalctl -f并获得了下面的结果的the：
sudo journalctl -f
-- Logs begin at Thu 2020-11-19 13:24:37 +0330. --
ژوئن 13 20:24:57 so-Lenovo-ideapad-310-15IKB tunnel.service[4851]: add bridge failed: Operation not permitted
ژوئن 13 20:24:57 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:24:58 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:24:59 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:00 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:01 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:02 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:03 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:03 so-Lenovo-ideapad-310-15IKB sudo[30096]: so : TTY=pts/0 ; PWD=/home/so ; USER=root ; COMMAND=/bin/journalctl -f
ژوئن 13 20:25:03 so-Lenovo-ideapad-310-15IKB sudo[30096]: pam_unix(sudo:session): session opened for user root by (uid=0)
ژوئن 13 20:25:04 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:05 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:06 so-Lenovo-ideapad-310-15IKB nautilus-deskto[17909]: connect() failed
ژوئن 13 20:25:07 so-Lenovo-ideapad-310-15IKB tunnel.service[4851]: add bridge failed: Operation not permitted此外，我还通过此链接安装了最后一个Arduino版本，并且是通过sudo arduino命令运行的，但是直到有了这个问题！
<#>Update2 2：
奇怪的是，我看到以下员额说the ST链接V2程序员可能是假的，并且有some错误的引脚连接，如果可能的话，我想问一下，如果我更改该帖子的2,4,6引脚配置，会发生什么？如下所示：
Update 3：
我检查了ST链接V2，并正确地标记了引脚。因此，问题不是来自错误的st-link引脚系统！谢谢。
回答 1
Ask Ubuntu用户
发布于 2021-06-14 16:03:47
根据N0rbert的评论，这个问题存在于Arduino的snap版本中，它被称为这里：
因此，我已经完成了以下步骤：
我已经安装了此链接的最后一个Arduino版本。
基于2的本文件，我已经安装了STM32CubePrg
3.选择下列设置和测试代码：
#define LED_BUILTIN PC13
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(2000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}4-将引导0头从'0‘位置切换到'1’位置，然后将FTDI板连接到计算机上，以便闪烁引导加载程序，正如本文中在这段视频上所说的那样：
谢谢。
页面原文内容由Ask Ubuntu提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://askubuntu.com/questions/1345632
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