KEILSTM32F10XUSB官方例程Audio_SpeakerExampledescription===================TheUSB-FS-DeviceAudioSpeakerdemogivesexamplesofhowtousetheSTM32F10xxxandSTM32L15xxxUSB-FS-DeviceperipheraltocommunicatewiththePChostintheisochronoustransfermode.Itprovidesademonstrationofthecorrectmethodforconfiguring