/**
* @brief USB Initialization Structure definition
*/
typedef struct
{
uint32_t dev_endpoints; /*!< Device Endpoints number.
This parameter depends on the used USB core.
This parameter must be a number between Min_Data = 1 and Max_Data = 15 */
uint32_t speed; /*!< USB Core speed.
This parameter can be any value of @ref PCD_Speed/HCD_Speed
(HCD_SPEED_xxx, HCD_SPEED_xxx) */
uint32_t ep0_mps; /*!< Set the Endpoint 0 Max Packet size. */
uint32_t phy_itface; /*!< Select the used PHY interface.
This parameter can be any value of @ref PCD_PHY_Module/HCD_PHY_Module */
uint32_t Sof_enable; /*!< Enable or disable the output of the SOF signal. */
uint32_t low_power_enable; /*!< Enable or disable Low Power mode */
uint32_t lpm_enable; /*!< Enable or disable Battery charging. */
uint32_t battery_charging_enable; /*!< Enable or disable Battery charging. */
} USB_CfgTypeDef;
原文地址：http://www.cnblogs.com/hshy/p/16846456.html
