经常需要调试Cyphal协议，yakut的安装比较麻烦，所以就用candump和gawk实现了一个协议解析工具。
这个candump导出的数据，很明显这是一条心跳广播，7D55是心跳广播的id，而且还是条单帧消息。
can1 107D552A [8] 00 00 00 00 00 01 A1 E0 can1 107D552A [8] 01 00 00 00 00 01 A1 E1 can1 107D552A [8] 02 00 00 00 00 01 A1 E2 can1 107D552A [8] 03 00 00 00 00 01 A1 E3
解析的依据参考这个图片：
贴上我们的awk脚本：
usage_and_exit () {
echo -e "e[32m$0e[0m support option is :
e[32m-v|--versione[0m show the program version
e[32m-d|--debuge[0m open debug mode
e[32m-m|--monitore[0m print online node and do message statistic
e[32m-i|--interfacee[0m specify the can interface to listen
e[32m-c|--cyclee[0m set frequency calculate cycle, uint is second.
e[32m-e|--print_errore[0m print toggle error and transfer id not continue error.
e[32m-h|--helpe[0m show this 
