* @brief USB_OTG_IsDeviceMode : Check if it is device mode * @param pdev : Selected device * @retval num_in_ep */

\brief Data Synchronization Barrier This function acts as a special kind of Data Memory Barrier. It completes when all explicit memory acces

-------------------------------------------------------------------------- */

* @brief HCD_GetCurrentFrame * This function returns the frame number for sof packet * @param pdev : Selected device * @retval Frame

* @brief USBH_ClrFeature * This request is used to clear or disable a specific feature. * @param pdev: Selected device * @param ep_num: en

* @brief USBH_GetDescriptor * Issues Descriptor command to the device. Once the response received, * it parses the descriptor and upd

* @brief USB_OTG_BSP_uDelay * This function provides delay time in micro sec * @param usec : Value of delay required in micro sec * @r

* @brief USB_OTG_DisableGlobalInt * Enables the controller's Global Int in the AHB Config reg * @param pdev : Selected device * @retval USB_

* @brief USB_OTG_FlushRxFifo : Flush a Rx FIFO * @param pdev : Selected device * @retval USB_OTG_STS : status */

* @brief USB_OTG_ReadHPRT0 : Reads HPRT0 to modify later * @param pdev : Selected device * @retval HPRT0 value */

* @brief USB_OTG_WritePacket : Writes a packet into the Tx FIFO associated * with the EP * @param pdev : Selected device * @param src : sou

Helper function to free the addresses

flag 代表是否覆盖已有队列缓存

* @brief Configures the priority grouping: pre-emption priority and subpriority. * @param NVIC_PriorityGroup: specifies the priority grouping bits

* @brief Enables or disables the High Speed APB (APB2) peripheral clock. * @note After reset, the peripheral clock (used for registers read/write

* @brief Waits until the RTC Time and Date registers (RTC_TR and RTC_DR) are * synchronized with RTC APB clock. * @note The RTC Resync

* @brief Configure the TI1 as Input. * @param TIMx: where x can be 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13 or 14 * to select the TIM periph

* @brief Configure the TI2 as Input. * @param TIMx: where x can be 1, 2, 3, 4, 5, 8, 9 or 12 to select the TIM * peripheral. * @param

* @brief USBH_BulkReceiveData * Receives IN bulk packet from device * @param pdev: Selected device * @param buff: Buffer pointer in w

* @brief USBH_Modify_Channel * Modify a pipe * @param pdev : Selected device * @param hc_num: Host channel Number * @param dev_ad

* @brief USB_OTG_EnableCommonInt * Initializes the commmon interrupts, used in both device and modes * @param pdev : Selected device * @retv

* @brief USB_OTG_EnableGlobalInt * Enables the controller's Global Int in the AHB Config reg * @param pdev : Selected device * @retval USB_O

* @brief USB_OTG_InitFSLSPClkSel : Initializes the FSLSPClkSel field of the * HCFG register on the PHY type * @param pdev : Selected device

* @brief Clips Q31 to Q15 values. */

! Very simple calculation of local NED offset between two pairs of GPS * coordinates (accurate when distances are small). */

! Very simple calculation of local NED offset between two pairs of GPS /coordinates. Accurate when distances are small. !*/

Step 0: Call this in a loop.