Copying files from

CD-ROM/DVD onto USB

flash drive

Ajay Eda Shaik Husainvali EE10M071 EE10M084

Sundaraiah GEE10M086

Dept.of Electrical EngineeringIndian Institute of Technology Madras

118-Sep-11

Overview

• Introduction

• Market

• Roadmap

• Price

• Designing methods

• Conclusion

218-Sep-11

Introduction

• Now every computer and embedded manufacturers are concentrating on Flash drives we are going to design a gadget which will copy the files from exist floppy disks and optical disks with good transfer rate and compatible.

• We are proposing SATA(Serial Advanced Technology Attachment), which will replace the exist gadget PATA(Parallel Advanced Technology Attachment) used for the same purpose with good metrics

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Market

• Existing devices like Parallel ATA are used in consumer desktop and laptop computers, and in embedded applications

• PATA remains widely used in industrial and embedded applications that use CompactFlash storage.

• Parallel ATA (the redesignation for the legacy ATA specifications) used a 16-bit wide data bus with many additional support and control signals, all operating at much lower frequency

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Some of the existing products that dontappreciate cd/dvd● Mac book and apple tv doesnt feature optical drives.● Japan already started manufacturing cd -freelaptops.● i-tunes new logo is no longer a cd

Market

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Also usb are superior in terms of speed, portability, multiport accessing....most of the users have started looking for USB'sinstead(in place) of cd/dvds.So its appreciable to have a gadget thatsupports direct data transfer from existingcd/dvds to usb's

Market

Market

• So our product will be replace the exist PATA which is slower, and our market is computers, desktops and embedded applications manufacturer like Intel, Microsoft etc

• Individuals with large collections of audio/video discs

• Shops trying to convert or setup digital stores• Online video services trying to update collection• Enterprises moving towards automated secure

and robust backup technologies

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Roadmap

• Now we are designing SATA with the same speed as PATA with the lower cost than PATA.

• But for every 12 months the speed will increase by 2 times and we will develop Logic analyzers and bus analyzers which collect, analyze, decode, and store rapidly-changing signals and waveforms

• Now target on Desktops manufacturer• After 18 months spread to Laptops and Embedded

system manufacturers.• Decrease in cost

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Roadmap

• Add support for future versions of USB and SATA

• Low power versions capable of running long time on battery power

• Unification of all controllers onto a single die

microprocessor/controller capable of handling multiple protocols

• Add support for newer optical disc formats like Blueray(BD),

HD-DVD(high Density)

• Add support to other filesystems like NTFS, ext etc.., for handling

larger les especially in cases like HD-DVD and BD

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Price

• Optical Disk Drive Rs 1000 – Rs 1200 for Desktop drives

• Optical Disk Drive Rs 1200 – Rs 1500 for portables

• USB-SATA bridge costs Rs 400 – Rs 600

• USB controller Rs 300 – Rs 600

• Assembly cost Rs 400 – Rs 700

• Power Adapter Rs 300 – Rs 600

• Total cost Rs 2400 – Rs 4000

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Architecture• Comprises of USB controller connected to sink

port, USB-SATA bridge and Optical Disk Drive.

• Optical Disk drive considered to provide SATA output.

USB-SATA bridge interfaces SATA to USB protocol with a controller taking care of matching data rates.

• USB controller with a small kernel with the USB driver loaded to take care of I/O to flash drives.

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Architecture

• Serial ATA

• Stands for Serial Advanced Technology Attachment

• Serial ATA (SATA or Serial Advanced Technology Attachment) is a computer bus interface for connecting host bus adapter to mass storage devices such as hard disks and optical disks.

• SATA host-adapters and devices communicate via a high-speed serial cable over two pairs of conductors

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Architecture

SATA-USB bridge

• Comprises of Host interface controller, memory, controller and device interface controller

• Host interface here corresponds to USB port

• Device Interface corresponds to SATA port connecting To the Optical Disk Drive

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SATA-USB bridge

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Vendors providing USB-SATA bridge

• LucidPORT - USB300

• Genesys Logic - GL830

• Oxford Semiconductor - OXU921S

• jmicron - JM20329, JM20339

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Architecture

• Components

• USB I/F consists of the analog front-end and packet decoder usedto connect the controller to the host device

• Similarly SATA I/F consists of front-end to connect to either harddisk drives or optical disk drives

• Controller is used to match the data rates and adjust according tothe host rate selection

• Memory is used both as buffer and as storage of instructions forcontroller to decode USB data and format it into SATA packetsand vice versa

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Architecture

• USB controller

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Vendors providing USB Controller

• TI - MSP430 series

• Application specic Atmel AVR - XMEGA series

• ARM7 based cores- eg OMAP, Samsung Exynos, STMicroelectronics

• 8051 family with USB controller – NXP, STMicroelectronics

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SATA Topology

• SATA uses a point-to-point architecture. The physical connection between a controller and a storage device is not shared among other controllers and storage devices. SATA defines multipliers, which allows a single SATA controller to drive multiple storage devices. The multiplier performs the function of a hub; the controller and each storage device is connected to the hub.

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SATA Topology

2018-Sep-11

Vendors providing Optical Disc Drives

• BenQ• HP• Sony-NEC • Toshiba-Samsung Storage Technology • Iomega• Moser Baer• Panasonic• Pioneer• Philips-BenQ Digital Solutions

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Conclusion

• SATA takes the majority of future market in transferring the data from Disks to USB

• And the transfer is faster than existing devices

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Thank you

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