文件名称:project4
- 所属分类：
- 单片机(51,AVR,MSP430等)
- 资源属性：
- 上传时间：
- 2015-04-28
- 文件大小：
- 4kb
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- 0次
- 提 供 者：
- 陈**
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本例程移实现SD卡虚拟U盘功能。本例程的源代码主要来自于ST的USB固件库中的范例。
程序功能有：
(1) 输入字符1，软件移除U盘设备。
(2) 输入字符2，软件重新使能U盘设备。
在工程配置中，需要添加2个固件库中用到的预编译宏：USE_USB_OTG_FS,USE_EMBEDDED_PHY
如果需要跟踪USB通信过程，可以修改2行宏定义 ：
(a) usbd_usr.c 文件开头
//#define usb_printf printf 选择这行将打印调试信息到串口。
#define usb_printf(...)
(b) usbd_storage_msd.c 文件开头
//#define mass_printf printf 选择这行将打印调试信息到串口。
#define mass_printf(...)
【说明：该例程在Flash运行正常，在内部RAM 运行需要将变量定位在 0x20010000 空间，不能使用0x1000 0000空间】-This routine shift implement virtual U disk function SD card. The source for the routine mainly ST' s USB firmware library paradigm. Program features include: (1) Input Character 1, U disk device software is removed. (2) Enter the character 2, the software re-enable the U disk device. In the project configuration, you need to add two firmware library use precompiled macros: USE_USB_OTG_FS, USE_EMBEDDED_PHY USB communication process if you need to track, you can modify the 2-line macro definition: (a) at the beginning of usbd_usr.c file //# define usb_printf printf selection This line will print debug information to the serial port. beginning usbd_storage_msd.c file#define usb_printf (...) (b) //# define mass_printf printf choose this line will print debug information to the serial port.#define mass_printf (...) [Note: This routine Flash is operating normally, the internal RAM required for the operation of the variable positioning 0x20010000 space, the space can not be used 0x1000 0
程序功能有：
(1) 输入字符1，软件移除U盘设备。
(2) 输入字符2，软件重新使能U盘设备。
在工程配置中，需要添加2个固件库中用到的预编译宏：USE_USB_OTG_FS,USE_EMBEDDED_PHY
如果需要跟踪USB通信过程，可以修改2行宏定义 ：
(a) usbd_usr.c 文件开头
//#define usb_printf printf 选择这行将打印调试信息到串口。
#define usb_printf(...)
(b) usbd_storage_msd.c 文件开头
//#define mass_printf printf 选择这行将打印调试信息到串口。
#define mass_printf(...)
【说明：该例程在Flash运行正常，在内部RAM 运行需要将变量定位在 0x20010000 空间，不能使用0x1000 0000空间】-This routine shift implement virtual U disk function SD card. The source for the routine mainly ST' s USB firmware library paradigm. Program features include: (1) Input Character 1, U disk device software is removed. (2) Enter the character 2, the software re-enable the U disk device. In the project configuration, you need to add two firmware library use precompiled macros: USE_USB_OTG_FS, USE_EMBEDDED_PHY USB communication process if you need to track, you can modify the 2-line macro definition: (a) at the beginning of usbd_usr.c file //# define usb_printf printf selection This line will print debug information to the serial port. beginning usbd_storage_msd.c file#define usb_printf (...) (b) //# define mass_printf printf choose this line will print debug information to the serial port.#define mass_printf (...) [Note: This routine Flash is operating normally, the internal RAM required for the operation of the variable positioning 0x20010000 space, the space can not be used 0x1000 0
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