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更新USB反初始化相关内容

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不吃油炸鸡
2026-02-08 19:30:56 +08:00
parent 23b7f7d283
commit 45aaffdc08
7 changed files with 24885 additions and 24797 deletions
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7
Power_Pico/USB_DEVICE/App/usb_device.c
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@@ -52,6 +52,13 @@ void USER_USB_DEVICE_DeInit(void)
{
USBD_Stop(&hUsbDeviceFS);
USBD_DeInit(&hUsbDeviceFS);
__HAL_RCC_USB_OTG_FS_FORCE_RESET();
HAL_Delay(10);
__HAL_RCC_USB_OTG_FS_RELEASE_RESET();
__HAL_RCC_USB_OTG_FS_CLK_DISABLE();
HAL_PCD_MspDeInit(hUsbDeviceFS.pData);
// 手动配置USB引脚为GPIO输出，强制拉低DP线以模拟拔出
USER_USBD_LL_Simulate_Disconnect();
}
/* USER CODE END 0 */

22
Power_Pico/USB_DEVICE/Target/usbd_conf.c
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@@ -59,6 +59,28 @@ USBD_StatusTypeDef USBD_Get_USB_Status(HAL_StatusTypeDef hal_status);
/* USER CODE BEGIN 1 */
/**
* @brief Manually simulates a USB device disconnection by pulling D+ low.
* @retval None
*/
void USER_USBD_LL_Simulate_Disconnect(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
// 1. 确保 GPIOA 时钟已使能
__HAL_RCC_GPIOA_CLK_ENABLE();
// 2. 将 PA12 (USB_DP) 配置为推挽输出
GPIO_InitStruct.Pin = GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
// 3. 强制将 PA12 输出低电平，拉低 D+
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_12, GPIO_PIN_RESET);
}
/* USER CODE END 1 */
/*******************************************************************************

2
Power_Pico/USB_DEVICE/Target/usbd_conf.h
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@@ -36,6 +36,8 @@
/* USER CODE BEGIN INCLUDE */
void USER_USBD_LL_Simulate_Disconnect(void);
/* USER CODE END INCLUDE */
/** @addtogroup USBD_OTG_DRIVER