最近找到一个stm32f411开发板，买了很久之前测试完就没使用了现在来做个HID键盘用用
下面这个是当时购买淘宝店铺下面的gitee链接有兴趣的可以看看
WeActStudio.MiniSTM32F4x1: WeAct Studio STM32F401CEU6/STM32F411CEU6 核心板资料 Github 镜像仓库 (gitee.com)
关于stm32f411ceu6是有内置上拉电阻的，外部电路可以直连USB，stm32f072c8t6也是一样
但是stm32f103c8t6一定要外部上拉，可能是只有新款的才有？不管了，stm32f411先用起来
一、打开stm32cubemx选择stm32f411ceu6，配置RCC和SYS
二、打开USB_OTG_FS选择Device_Only
三、把USB_DEVICE配置成HID设备，填入一些参数我在图片下面说明这些参数是啥意思，在Device Descriptor上面的VID和PID我们就不去修改啦
0x05：表示我们设置的HID设备通信时间间隔单位为ms
63：这个是我们配置的设备描述符，要配合另一个生产设备描述符的软件一起讲这个放到下面去
64：这个就是发送的缓冲区大小，表示一次可以发送最多发送64个字节
四、我们来配置时钟，一般图省事我直接配置成48M，要是你有其他的时钟大小也是可以试试的
五、给工程取个名字选择一个保存的路径，选择MDKV5，在Code Generator单独生产.c和.h的文件上面打勾就行
上面这些步骤完成点击generate code就生成了我们的MDK工程了，下一步我们找到设备描述符用的软件进入第二部分！！！
六、这里我使用的是软件自带的设备描述符（软件我之后会放在网盘中）
在截图里简单描述一下大概的意思，附上一个讲解的很详细的网站！应该是目前我看的讲解的最详细的了
USB HID报告描述符教程 - 知乎 (zhihu.com)
（可能有不对的地方，具体的按照上面的知乎链接的内容）
上面的内容是软件自带的文件的keyboard文件，点击file-open找到和软件相同目录的地方就可以看到
七、选择文件的另存为把这个HID文件转成txt格式方便我们复制到程序中
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 */
八、打开生成的mdk工程，找到usbd_custom_hid_if.c把设备描述符的复制到
CUSTOM_HID_ReportDesc_FS[USBD_CUSTOM_HID_REPORT_DESC_SIZE]
注意保护区外已经有了一个0xC0所以我们生产的设备描述符可以去掉最后的C0
九、我们把头文件导入到main.c中，写一个数组来测试一下HID键盘
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2023 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usb_device.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
//#include "usbd_customhid.h"
#include "usbd_custom_hid_if.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
uint8_t buffer[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};//keyboard
extern USBD_HandleTypeDef hUsbDeviceFS;//外部//
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USB_DEVICE_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0) == GPIO_PIN_RESET)
{
buffer[2] = 0x04; //a
USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS,buffer,8);
HAL_Delay(15);
buffer[2] = 0x00;
USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS,buffer,8);
HAL_Delay(15);
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 25;
RCC_OscInitStruct.PLL.PLLN = 192;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 4;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV2;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
效果就是按下PA0的按键，USB会输出一个键盘的a
(突然发现配置的设备描述符是发送9个字节为一个完整数据，再mian中只发送了8个字节的数组居然也能正常使用，可能是最后一个字节刚好是0没有用上？这里没有做修改)
给大家附上一个我觉得描述的很详细每个字节8个位具体功能的链接可以参考一下，但是根据不同的设备描述符配置有调整
自己整理的USB-HID鼠标、键盘通讯格式，欢迎指教 (amobbs.com 阿莫电子论坛 - 东莞阿莫电子网站)
完结！
下一部分在添加鼠标的HID操作
这个工程的例子已经上传到github
Pepperrrrrr/stm32f4_HID: stm32f411ceu6_stm32cubemx_HIDkeyboard (github.com)
大佬们给个小星星吧
标签：BEGIN,CODE,END,stm32f411CEU6,stm32cubemx,HID,USER,RCC From： https://www.cnblogs.com/hjf-log/p/17663638.html