/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. * * STM32F3 Family specific USB functionality */ /* * A device that uses an STM32F3 part will need to define these two functions * which are used to connect and disconnect the device from the USB bus. This * is usually accomplished by enabling a pullup on the DP USB line. The pullup * should be enabled by default so that the STM32 will enumerate correctly in * DFU mode (which doesn't know how to enable the DP pullup, so it assumes that * the pullup is always there). */ void usb_board_connect(void); void usb_board_disconnect(void);