avrdude:ser_open():无法打开设备"/dev/ttyACM0&":设备或资源繁忙 [英] avrdude: ser_open(): can't open device "/dev/ttyACM0": Device or resource busy

问题描述

我是Linux Mint用户.我正在处理Arduino Yun.正在编译Arduino程序.之后我上传到Arduino Yun.然后我得到这些错误.你能帮我吗?

I am Linux Mint user.I am dealing with Arduino Yun.I am compiling Arduino program.After that I am uploading to Arduino Yun.Then I get these error.Can you help me?

推荐答案

您首先需要确保您具有正确的读/写权限，如

you first need to make sure you have the correct read/write rights, as described here, esentially enter following commands:

$ sudo adduser <username> dialout
$ sudo chmod a+rw /dev/ttyACM0

'/dev/ttyACM0'是您的arduino连接到的端口，应该在根目录的/dev文件夹中列出.

the '/dev/ttyACM0' is the port your arduino is connected to, it should be listed in the /dev folder of your root.

秒::在确定arduino连接到哪个端口并为该端口设置了正确的权限后，需要运行以下命令.我不确定它是做什么的，也不确定是否确实需要它，但是它使上传在几次情况下对我来说都是有效的

second: after you have identified which port the arduino is connected to and you have set the correct rights for this port, you need to run following command. I am not sure what it does, I am not sure if it's really needed, but it made the uploads work for me on several occasions

$ sudo udevadm trigger

找到此命令和第三，您有时会发现上载有时是时机和运气的挑战.按住复位键(有时非常连续两次)，同时按下arduino草图的上载按钮.在某些时候，它将起作用.在不断更改代码中的小片段时，我感到很幸运，因此当我按上载"时，必须首先编译代码.

and third, you will find the upload sometimes a challenge of timing and luck. Keep pressing the reset (sometimes twice very consecutively) and meanwhile press the upload button of your arduino sketch. At certain moment, it will work. I had more luck when constantly changing small pieces in the code, so when I pushed 'upload', it had to compile the code first.

https://www.arduino.cc/zh-CN/Guide/Troubleshooting#upload

在某些计算机上，您可能需要按重置"按钮

on some computers, you may need to push teh reset button

我从来没有碰过引导加载程序，也从未碰过ICSP引脚之类的东西(幸运的是)

I have never messed with the bootloader, nor with ICSP pins and such (luckily)

还可以查看Arduino论坛 或通过链接自行提供

Also have a look on the Arduino forum or on the link provide by yourself

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