说明：  这是一个CAN总线的中继器驱动程序，可实用物联网。并且在煤矿井下进行过测试与应用。版本为早期版本，不保证正常使用
(This is a repeater driver of CAN bus, which can be used in the Internet of things. And it has been tested and applied in coal mine. The version is an earlier version, which does not guarantee normal use)