代码收藏家技术教程 11天前

如何使用STM32实现HID键盘功能

前面的cubelmx项目配置参考

stm32实现hid鼠标-CSDN博客https://blog.csdn.net/anlog/article/details/137814494?spm=1001.2014.3001.5502两个项目的配置完全相同。

代码

引用

键盘代码：

替换hid设备描述符

先屏蔽鼠标设备描述符

替换为键盘设备描述符

修改宏定义

修改大小为63U

运行后如下图

参考链接

参考宝藏ub主

3分钟，教会你做键盘。使用STM32 USB的HID 方式制作一个键盘_哔哩哔哩_bilibilihttps://www.bilibili.com/video/BV1dA4m1c7VE/?spm_id_from=333.999.0.0&vd_source=e821a225c7ba4a7b85e5aa6d013ac92e

HID键盘设备 – 哔哩哔哩 (bilibili.com)

/*

* buffer[0] - bit0: Left CTRL

*           -bit1: Left SHIFT

*           -bit2: Left ALT

*           -bit3: Left GUI(win)

*           -bit4: Right CTRL

*           -bit5: Right SHIFT

*           -bit6: Right ALT

*           -bit7: Right GUI ()

* buffer[1] - Padding = Always 0x00

* buffer[2] - Key 1

* buffer[3] - Key 2

* buffer[4] - Key 3

* buffer[5] - Key 4

* buffer[6] - Key 5

* buffer[7] - Key 6

*/




/*修改usbd_hid.c中的报告设备描述符*/

__ALIGN_BEGIN static uint8_t HID_MOUSE_ReportDesc[HID_MOUSE_REPORT_DESC_SIZE] __ALIGN_END =

{

0x05, 0x01, // USAGE_PAGE (Generic Desktop) //63

0x09, 0x06, // USAGE (Keyboard)

0xa1, 0x01, // COLLECTION (Application)

0x05, 0x07, // USAGE_PAGE (Keyboard)

0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)

0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)

0x15, 0x00, // LOGICAL_MINIMUM (0)

0x25, 0x01, // LOGICAL_MAXIMUM (1)

0x75, 0x01, // REPORT_SIZE (1)

0x95, 0x08, // REPORT_COUNT (8)

0x81, 0x02, // INPUT (Data,Var,Abs)

0x95, 0x01, // REPORT_COUNT (1)

0x75, 0x08, // REPORT_SIZE (8)

0x81, 0x03, // INPUT (Cnst,Var,Abs)

0x95, 0x05, // REPORT_COUNT (5)

0x75, 0x01, // REPORT_SIZE (1)

0x05, 0x08, // USAGE_PAGE (LEDs)

0x19, 0x01, // USAGE_MINIMUM (Num Lock)

0x29, 0x05, // USAGE_MAXIMUM (Kana)

0x91, 0x02, // OUTPUT (Data,Var,Abs)

0x95, 0x01, // REPORT_COUNT (1)

0x75, 0x03, // REPORT_SIZE (3)

0x91, 0x03, // OUTPUT (Cnst,Var,Abs)

0x95, 0x06, // REPORT_COUNT (6)

0x75, 0x08, // REPORT_SIZE (8)

0x15, 0x00, // LOGICAL_MINIMUM (0)

0x25, 0x65, // LOGICAL_MAXIMUM (101)

0x05, 0x07, // USAGE_PAGE (Keyboard)

0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))

0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)

0x81, 0x00, // INPUT (Data,Ary,Abs)

0xc0,       // END_COLLECTION

};





#include “usbd_hid.h” 文件中的申明文件，修改一下。


#define HID_MOUSE_REPORT_DESC_SIZE    63U

HID Usages and Descriptions (gitee.com)https://gitee.com/siyu233/Stm32Code_1/raw/master/USB_HID_keyboard/hut1_HID_22.pdf