USB模拟虚拟串口，这个功能现在在很多的微控制器上都会提供，NXP的也不例外了-virtual com port

STM32-P103 board is development board which allow exploring the complete features of the new ARM Cortex M3 STM32F103RBT6 microcontrollers produced by ST Microelectronics Inc. The board have SD/MMC card connector and allow USB Mass storage dev

STM32-H103 board is entry level development board for the new ARM Cortex M3 family of devices produced by ST Microelectronics Inc. With STM32-H103 you can explore the features of STM32 family on budged, the board have everything necessary to bu