![]() ![]() The usbd_hid_generic example does not use bulk transfers, since the HID specification defines that HID class devices should use Interrupt transfers and not bulk transfers. Inside Nordic nRF5 SDK, the USB Mass Storage Class example uses bulk transfers, so you can take a look at that example if you are interested in bulk transfers. Regarding on USB communication, it can use either USB Bulk or USB CDC class approach. BBC micro:bit using ARM mbed DAPLink firmware.It supports USB to serial converters based onĪnd devices implementing the USB CDC protocol like This Android app provides a line-oriented terminal / console for devices with a serial / UART interface connected with a USB-to-serial-converter. In this blog, I would show how to use the USB CDC class for Android communication. Instead of using the Bluetooth Low Energy, they can communicate the date between android host through USB interface. In the nRF52 Series, nRF52840, nRF52833 and nRF52820 have supported the full speed USB 2.0. This blog is to describe how to use the nRF52 Series USB interface to communicate with Android host.
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