The uart_polling example shows how to use uart driver in polling way:In this example, one uart instance connect to PC through uart, the board will send back all characters that PCsend to the board.

The uart_polling example shows how to use uart driver in polling way:In this example, one uart instance connect to PC through uart, the board will send back all characters that PCsend to the board.

The usbx_device_audio_loopback example.

The usbx_device_audio_loopback example.

The usbx_device_cdc_acm example.

The usbx_device_cdc_acm example.

The usbx_device_composite_cdc_acm_cdc_acm example.

The usbx_device_composite_cdc_acm_cdc_acm example.

The usbx_device_hid_keyboard example.

The usbx_device_hid_keyboard example.