各位好，请高手帮忙看下问题出在哪里
F103ZET芯片，在官方USB固件库JoyStickMouse，在枚举过程中添加打印后就枚举不成功，设置地址后，再次获取描述符，之后USB总线就复位了，不知道问题出在哪里，请指教。去除所有打印就可以枚举成功
枚举过程打印信息：
<L70> USB Cable plugged-in!
USB_Init
usb_debug: <L100> usb interrupt: reset
Joystick_Reset..
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L113> ENDP0 OUT Stoken: EP_RX_OUT..
usb_debug: <L100> usb interrupt: reset
Joystick_Reset..
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L573> NoData_Setup0, SET_ADDRESS: 0x400
usb_debug: <L665> WAIT_STATUS_IN
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L931> SetDeviceAddress: 0x4
usb_debug: <L209> Joystick_SetDeviceAddress ok
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L113> ENDP0 OUT Stoken: EP_RX_OUT..
usb_debug: <L100> usb interrupt: reset
Joystick_Reset..
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L113> ENDP0 OUT Stoken: EP_RX_OUT..
usb_debug: <L100> usb interrupt: reset
Joystick_Reset..
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L573> NoData_Setup0, SET_ADDRESS: 0x400
usb_debug: <L665> WAIT_STATUS_IN
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L931> SetDeviceAddress: 0x4
usb_debug: <L209> Joystick_SetDeviceAddress ok
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L113> ENDP0 OUT Stoken: EP_RX_OUT..
usb_debug: <L100> usb interrupt: reset
Joystick_Reset..
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L113> ENDP0 OUT Stoken: EP_RX_OUT..
usb_debug: <L100> usb interrupt: reset
Joystick_Reset..
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L573> NoData_Setup0, SET_ADDRESS: 0x400
usb_debug: <L665> WAIT_STATUS_IN
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L931> SetDeviceAddress: 0x4
usb_debug: <L209> Joystick_SetDeviceAddress ok
usb_debug: <L102> ENDP0 SETUP Stoken: EP_RX_SETUP..
usb_debug: <L83> ENDP0 IN Stoken: EP_TX..
usb_debug: <L113> ENDP0 OUT Stoken: EP_RX_OUT..

你可以去熟悉以下USB协议，你加上dayinxinxi 后USB的通信会出现延迟，USB总线在USB设备一段时间内不应答就会复位总线的,我记得应该是3ms左右,在USB的调试中不推荐使用串口打印这一功能。

打印导致超时了吧

查看打印和USB的中断优先级。打印应该在最低的优先级。