实现STM32F103的USB批量传输，并且带有读写flash以及ADS8509的AD转换，经测试，可用，写的有点乱，有问题可以留言。-Achieve STM32F103 of USB bulk transfer, and with read and write flash and ADS8509 AD converter, tested, can write a bit chaotic, there are problems you can leave a message.