readme.txt 2.8 KB

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  1. /*!
  2. \file readme.txt
  3. \brief description of the USB HID device(USB-Keyboard) demo
  4. \version 2023-06-30, V2.1.6, firmware for GD32F30x
  5. */
  6. /*
  7. Copyright (c) 2023, GigaDevice Semiconductor Inc.
  8. Redistribution and use in source and binary forms, with or without modification,
  9. are permitted provided that the following conditions are met:
  10. 1. Redistributions of source code must retain the above copyright notice, this
  11. list of conditions and the following disclaimer.
  12. 2. Redistributions in binary form must reproduce the above copyright notice,
  13. this list of conditions and the following disclaimer in the documentation
  14. and/or other materials provided with the distribution.
  15. 3. Neither the name of the copyright holder nor the names of its contributors
  16. may be used to endorse or promote products derived from this software without
  17. specific prior written permission.
  18. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19. AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20. WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  22. INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23. NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24. PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  25. WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26. ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  27. OF SUCH DAMAGE.
  28. */
  29. This demo is based on the GD32307C-EVAL board, it provides a description of
  30. how to use the USB_FS device application based on the Human Interface Device (HID).
  31. The Full Speed (FS) USB module uses a 48MHz clock, which is generated
  32. from an integrated PLL.
  33. The GD32 device is enumerated as an USB keyboard, that uses the native PC Host
  34. HID driver to which the GD32F307C-EVAL board is connected.
  35. The USB keyboard use three key(wakeup key, tamper key and user1 key) to print 3
  36. characters('b', 'a' and 'c').
  37. This demo supports remote wakeup (which is the ability of a USB device to
  38. bring a suspended bus back to the active condition), and the wakeup key is
  39. used as the remote wakeup source.
  40. In order to test USB remote wakeup function, you can do as follows:
  41. - Manually switch PC to standby mode
  42. - Wait for PC to fully enter the standby mode
  43. - Push the wakeup key
  44. - If PC is ON, remote wakeup is OK, else failed
  45. In order to make the program work, you must do the following:
  46. - Open your preferred tool-chain
  47. - Rebuild all files and load your image into target memory
  48. - Run the application