STR7系列32位ARM控制器的固件库，使开发此类控制器变得简单容易，内含AD，CAN，USRT，EMI等共14个例程。-STR7 family of 32-bit ARM controller firmware library, so that the development of such a controller has become simple and easy, including AD, CAN, USRT, EMI, such as a total of 14 routines.