非常不错的一款STM32开发板资料。 含原理图、用户手册、各类例程：USB虚拟串口、TFT显示例程、U盘例程、TCP通信、uCOS例程、MP3解码、步进电机例程等。有KEIL和IAR两套例程。 -A very good STM32 development board. Including schematics, user manual, all kinds of routines: USB virtual serial ports, TFT display routines, U d