Renesas R8A66597, Руководство пользователя

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Renesas USB Device USB Host Mass Storage Class Driver(HMSC)
R01AN0513EJ0110 Rev.1.10 Page 5 of 55
Aug 10, 2011
2.3 Software Configuration
Figure 2.1 shows the configuration of HDCD, and table 2.1 lists the modules.
User Application (APL)
File System Library (FSL)
File System Interface (FSI)
Mass Storage Device Driver (HMSDD)
Device Driver Interface (DDI)
HCD Interface (HCI)
Media Driver USB Host Control Driver (HCD)
Media USB Host Controller (Hardware)
Mass
Storage
Class Driver
(HMSCD)
Device
Class
Driver
(HDCD)
MGR / HUB
(USB manager)
(HUB driver)
Figure 2.1 Software Configuration Diagram
Table 2.1 Modules
Module Description
APL Calls FSL functions to implement storage functionality.
Created by the customer to match the system specifications.
FSL FAT file system with specifications defined by the user.
FSI FSL-HMSDD interface functions.
They should be modified to match FSL.
HMSDD Sample HMSDD.
It should be created (modified) by the customer to match the system specifications.
DDI HMSDD-HMSCD interface functions.
They should be modified to match HMSDD.
HMSCD The USB host mass storage class driver. It appends BOT protocol information to storage
commands and sends requests to HCD. It also manages the BOT sequence.
The storage commands should be added (modified) by the customer to match the system
specifications.
HCI HMSCD-HCD interface functions.
MGR/HUB Enumerates the connected devices and starts HMSCD. Also performs device state
management.
HCD USB host hardware control driver.
Media Driver Driver for non-USB storage devices.