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- /*!
- \file readme.txt
- \brief description of the USB HID device(USB-Keyboard) demo
- \version 2023-06-30, V2.1.6, firmware for GD32F30x
- */
- /*
- Copyright (c) 2023, GigaDevice Semiconductor Inc.
- Redistribution and use in source and binary forms, with or without modification,
- are permitted provided that the following conditions are met:
- 1. Redistributions of source code must retain the above copyright notice, this
- list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
- 3. Neither the name of the copyright holder nor the names of its contributors
- may be used to endorse or promote products derived from this software without
- specific prior written permission.
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- OF SUCH DAMAGE.
- */
- This demo is based on the GD32307C-EVAL board, it provides a description of
- how to use the USB_FS device application based on the Human Interface Device (HID).
- The Full Speed (FS) USB module uses a 48MHz clock, which is generated
- from an integrated PLL.
- The GD32 device is enumerated as an USB keyboard, that uses the native PC Host
- HID driver to which the GD32F307C-EVAL board is connected.
- The USB keyboard use three key(wakeup key, tamper key and user1 key) to print 3
- characters('b', 'a' and 'c').
- This demo supports remote wakeup (which is the ability of a USB device to
- bring a suspended bus back to the active condition), and the wakeup key is
- used as the remote wakeup source.
- In order to test USB remote wakeup function, you can do as follows:
- - Manually switch PC to standby mode
- - Wait for PC to fully enter the standby mode
- - Push the wakeup key
- - If PC is ON, remote wakeup is OK, else failed
- In order to make the program work, you must do the following:
- - Open your preferred tool-chain
- - Rebuild all files and load your image into target memory
- - Run the application
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