TX2 can 通信测试开机启动项

问题背景:在测试tx2 can通信时,每次开机需要单独运行两条命令

sudo ip link set can0 type can bitrate 500000(意思是设置CAN0通道波特率为500kb/s)

sudo ip link set up can0(意思是将CAN0通道开启)

但是我们用tx2肯定是希望每次开机程序跑起来以后直接将运算得到的CAN信号传输给车辆底层的啊,每次开机再来开启CAN通道、设置波特率啥的岂不是开玩笑!!!

基于上述原因,要设置开机自启脚本,具体参考了这篇博客:https://blog.csdn.net/qq_19004627/article/details/80661468

这篇博客中提到有A、B两种方法,经过多次尝试,本人用的TX2上第二种方法不成功,因此采用了A方法:

/etc/rc.local脚本是一个ubuntu16.04及其以前的系统中自带的开机脚本,在没有修改之前里面内容如下:


#!/bin/sh -e  
#  
# rc.local  
#  
# This script is executed at the end of each multiuser runlevel.  
# Make sure that the script will "exit 0" on success or any other  
# value on error.  
#  
# In order to enable or disable this script just change the execution  
# bits.  
#  
# By default this script does nothing.  
    
exit 0  

那么我要加入CAN的开机启动项以后的效果是啥样的呢,看下面这段代码

#!/bin/sh -e  
#  
# rc.local  
#  
# This script is executed at the end of each multiuser runlevel.  
# Make sure that the script will "exit 0" on success or any other  
# value on error.  
#  
# In order to enable or disable this script just change the execution  
# bits.  
#  
# By default this script does nothing.  

sudo ip link set can0 type can bitrate 500000

sudo ip link set up can0
    
exit 0  

接下来重启就生效了,ok,解决,问题不一样可能具体解决方案不一样啊,此方法仅用于记录个人学习过程中遇到及解决的问题!

 

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