MDK 库 使用例子 和 代码 Easy-to-use firmware libraries for STM32 The standard firmware library for the STM32 ARM™ Cortex-M3™ core-based microcontrollers is complete package consisting of device drivers for all of the standard device peripherals. Each device driver includes a set of functions covering full peripheral functionality. The s ource code, developed in C language, is highly documented and thoroughly tested. ource code, developed in C language, is highly documented and thoroughly tested.