STM32 USB键盘按shift&ctrl等键一直在发数据，why?谢谢。

只看该作者 · 2013-10-30 14:49

用STM32做键盘，鼠标，触摸屏，功能均实现，但当按住键盘的CTRL，SHIFT键时，用BUS HOUND监测到USB在一直发这些键值到PC，且有按住CTRL,SHIFT的功能。。
Bus Hound 6.01 capture on Windows Vista (x86). Complements of www.perisoft.net

  Device - Device ID (followed by the endpoint for USB devices)
         (23) USB Composite Device
         (24) USB Input Device
         (25) USB Input Device
         (26) USB Input Device
         (27) HID-compliant mouse
         (28) HID Keyboard Device
         (29) HID-compliant mouse
  Phase  - Phase Type
         IN Data in transfer
  Data - Hex dump of the data transferred
  Descr  - Description of the phase
  Cmd... - Position in the captured data

Device  Phase  Data                   Description    Cmd.Phase.Ofs(rep)
------  -----  ------------------------  ----------------  ------------------
  25.2  IN    01 01 00 00  00 00 00 00  ........                1.1.0
  28 IN    10 00 1d 00  00 00 00 00  ........                2.1.0
  25.2  IN    00 00 00 00  00 00 00 00  ........                3.1.0
  25.2  IN    01 01 00 00  00 00 00 00  ........                4.1.0
  25.2  IN    00 00 00 00  00 00 00 00  ........                5.1.0
  28 IN    10 00 1d 00  00 00 00 00  ........                6.1.0(6982) //发送次数。

如果我有在回调函数里面发送一包0，那么就不能连续按按键（比如按住backspace，一直退格），
求指教，谢谢。。

只看该作者 · 2013-10-30 16:10

什么键盘？

只看该作者 · 2013-10-30 17:58

背景：我的设备如图，STM32-2端可以接USB，PS2键盘，鼠标，然后通过RS485发给STM32-1，我把STM32-1枚举成鼠标，键盘，
现在的基本功能已经实现，

不知道城主是指哪方面？ DELL USB键盘啊。。

刚才发现，如果STM32-2端不接PS2键盘，只单独接USB键盘，按住键盘的CTRL，SHIFT键，没问题，但是如果同时接PS2和USB键盘，就出现上面的现象，
调试发现，STM32-2端同时接PS2和USB键盘，和STM32-2端只接USB键盘，在STM32-2端发送的数据都是一样的，且STM32-1端接收的数据也是一样.
而PC端用BUS HOUND监测到这两种状态的数据却不同，求解，，谢谢。。。BUS HOUND数据如下：
1.STM32-2端只接USB键盘的：
Bus Hound 6.01 capture on Windows Vista (x86). Complements of www.perisoft.net
  Device - Device ID (followed by the endpoint for USB devices)
         (23) USB Composite Device
         (24) USB Input Device
         (25) USB Input Device
         (26) HID-compliant mouse
         (27) HID Keyboard Device
         (30) USB Input Device
         (31) HID-compliant mouse
         (32) Unknown Device
  Phase  - Phase Type
         IN Data in transfer
  Data - Hex dump of the data transferred
  Descr  - Description of the phase
  Cmd... - Position in the captured data
Device  Phase  Data                   Description    Cmd.Phase.Ofs(rep)
------  -----  ------------------------  ----------------  ------------------
  25.2  IN    01 01 00 00  00 00 00 00  ........                1.1.0
  27 IN    01 00 1d 00  00 00 00 00  ........                2.1.0
  25.2  IN    01 00 00 00  00 00 00 00  ........                3.1.0
  27 IN    01 00 1d 00  01 00 00 00  ........                4.1.0
  25.2  IN    01 00 00 00  00 00 00 00  ........                5.1.0
  25.2  IN    00 00 00 00  00 00 00 00  ........                6.1.0
  25.2  IN    01 00 00 00  1e 00 00 00  ........                7.1.0
  27 IN    01 00 02 00  00 00 00 00  ........                8.1.0
  25.2  IN    00 00 00 00  00 00 00 00  ........                9.1.0
  25.2  IN    01 00 00 00  00 00 00 00  ........             10.1.0
  27 IN    01 00 02 00  01 00 00 00  ........             11.1.0

2.STM32-2端同时接USB键盘和PS2键盘的
Bus Hound 6.01 capture on Windows Vista (x86). Complements of www.perisoft.net

D

  Device - Device ID (followed by the endpoint for USB devices)
         (23) USB Composite Device
         (24) USB Input Device
         (25) USB Input Device
         (26) HID-compliant mouse
         (27) HID Keyboard Device
         (30) USB Input Device
         (31) HID-compliant mouse
         (32) Unknown Device
  Phase  - Phase Type
         IN Data in transfer
  Data - Hex dump of the data transferred
  Descr  - Description of the phase
  Cmd... - Position in the captured data
Device  Phase  Data                   Description    Cmd.Phase.Ofs(rep)
------  -----  ------------------------  ----------------  ------------------
  25.2  IN    01 01 00 00  00 00 00 00  ........                1.1.0(2)
  27 IN    01 00 1d 00  00 00 00 00  ........                2.1.0(2)
  25.2  IN    01 00 00 00  00 00 00 00  ........                3.1.0(2)
  27 IN    01 00 1d 00  01 00 00 00  ........                4.1.0(2)