官方https://fieldcommgroup.org/technologies/hart/documents-and-downloads-hart
参考网页http://www.eeworld.com.cn/mcu/article_24485.html
http://www.elecfans.com/analog/20101022224995.html
http://www.analog.com/media/cn/analog-dialogue/volume-46/number-4/articles/hart-communication-networks_cn.pdf
https://blog.csdn.net/rhythmwang/article/details/60342434
