RL-USB Host Source Files

RL-USB Host Source Files for creating USB Host applications with the RL-USB Library can be found in the folders:

Folder Name	Description
\ARM\RV31\INC	Contains include and configuration files.
\ARM\RV31\LIB	Contains the library files: USB_ARM_L.LIB, USB_CM1.LIB and USB_CM3.LIB.
\ARM\RL\USB\INC	Contains USB header files.
\ARM\RL\USB\Config	Contains USB configuration template file.
\ARM\RL\USB\Drivers	Contains USB Host Controller Driver modules.
*\ARM\Boards\Vendor\Board\RL\USB\Host*	Contains example applications built with the RL-USB Library. Use the projects as templates to create new USB Host applications.

RL-USB Host files in \ARM\RV31\INC:

File Name	File Type	Layer	Description
rl_usb.h	Header	All layers	Contains prototypes of functions exported from the library or imported to the library. No code changes are required.
usb_lib.c	Module	All layers	Packs configuration settings and provides them to the library. The file is included from the module file usb_config.c. No code changes are required.

RL-USB Host files in \ARM\RV31\LIB:

File Name	File Type	Layer	Description
USB_ARM_L.lib	Library	All layers	RL-USB library for ARM7 and ARM9 devices - Little Endian.
USB_CM1.lib	Library	All layers	RL-USB library for Cortex-M1 devices - Little Endian.
USB_CM3.lib	Library	All layers	RL-USB library for Cortex-M3 devices - Little Endian.

RL-USB Host files in \ARM\RL\USB\INC:

File Name	File Type	Layer	Description
usb.h	Header	Core and Host Controller Driver	Main RL-USB header file used to include other USB header files.
usb_adc.h	Header	Core and Class Driver	Contains definitions and structures used by the audio device class such as endpoint, subclasses, audio data formats, audio processing unit, request codes, ...
usb_cdc.h	Header	Core and Class Driver	Contains definitions and structures used by the communication device class such as endpoint, subclasses, sub-types, request codes, ...
usb_hid.h	Header	Core and Class Driver	Contains definitions and structures used by the human interface device class such as subclasses, protocol codes, descriptor types, reports, ...
usb_msc.h	Header	Core and Class Driver	Contains definitions and structures used by the mass storage device class such as subclasses, protocol codes, request codes, SCSI commands, ...
usb_def.h	Header	Core and Class Driver	Contains definitions for device classes, descriptors, pipes.
usbh.h	Header	Core and Host Controller Driver	Contains definitions for USB Host errors, packets, structures, drivers and functions.

RL-USB Host Application files in \ARM\Boards\Vendor\Board\RL\USB\Host:

File Name	File Type	Layer	Description
usb_config.c	Module	All layers	Configures the USB Host Controller and USB Host Classes at compile time. Template file can be found in folder \ARM\RL\USB\Config. Settings for the USB Host Controller Driver and USB Host Class Drivers are available. Modify this file to suit the application requirements.
usbh_ehci_device family.c, usbh_ohci_device family.c or usbh_device family.c	Module	Host Controller Driver	Provides the hardware specific driver functions. Standardized modules are available in the folder \ARM\RL\USB\Drivers. Adapt this file, if no module is provided for the used device.

Source files required to support MSC devices. Use these files in addition to the RL-USB Host source files outlined in the tables above:

	File Type	Layer	Description
File_Config.c	Module	Application	Provides configuration options for FlashFS. Options to define the USB drive letter and cache size are available. Modify the options to suit the application needs.
fs_usbh_msc.c	Module	Application	Provides the USB Host functions to support MSC devices. Modify the code to suit the application needs.
FS_ARM_L.lib	Library	Application	Flash File System library for ARM7 and ARM9 devices - Little Endian.
FS_ARM_B.lib	Library	Application	Flash File System library for ARM7 and ARM9 devices - Big Endian.
FS_CM1.lib	Library	Application	Flash File System library for Cortex-M1 devices - Little Endian.
FS_CM3.lib	Library	Application	Flash File System library for Cortex-M3 devices - Little Endian.