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USB to IDE interface

Discussion in 'General Electronics Chat' started by mixos, Dec 10, 2003.

  1. mixos

    mixos New Member

    Joined:
    Aug 8, 2003
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    I made a little research about USB to IDE project and what I found follows.

    Many semiconductor companies have chips that do the conversion between IDE and USB and simplify the way you can connect an IDE device on USB, but you will need to draw your own schematic according to the datasheet and the application guides of each company. Here is a list of chips that do the work for you:


    IC’s
    ---------

    Cypress:
    Here you will find some IC’s for USB and USB 2.0 to IDE interface. Also there are much design files to download: click here

    Texas Instruments
    Also Texas Instruments has some IC’s of that kind:
    http://focus.ti.com/docs/prod/folders/print/tusb6250.html

    Philips
    Philips isp1581 chip, has an easy interface to IDE from USB 2.0 more info and schematics at philips site (ISP158x part)
    http://www.semiconductors.philips.com/buses/usb/appnotes/

    NEC
    uPD720121
    http://www.necel.com/japanese/system/usb/product/upd720121.html

    Aliusa
    Found a new USB2IDE device. ALI M5621.
    www.aliusa.com

    Prolific
    PL-3507: Hi-Speed USB & IEEE1394 Combo to IDE Bridge Controller
    http://www.prolific.com.tw/fr_pl3507.htm



    Schematics:
    ----------------------------

    Project 1
    Here are some schematics, but you will need an online translator to translate from Czech (try http://www.translation.langenberg.com/):
    http://www.mcu.cz/modules/news/article.php?storyid=153
    http://www.mcu.cz/modules/news/article.php?storyid=158

    Project 2
    Try to take part of this project :

    ATA/IDE interface for a standard harddisk or CD-ROM's
    http://www.myplace.nu/mp3/yampp3u.htm

    Project 3
    Go to this place to see USB controllers:
    http://www.ftdichip.com/FTSchema.htm

    Project 4
    A complete design including drivers, schematic, datasheet.
    Download it here: http://www.electronics-lab.com/forum/attachments/USB2IDE.zip


    Other Resources:
    ----------------------------

    Another nice recorce for USB questions is, www.usb.org, check the developers forum. Also check: http://www.usbdeveloper.com/


    Power Supplies:
    ----------------------------

    A switch mode power supply is integrated on the board. It's controlled by a Maxim MAX1626 Step-Down DC-DC controller.

    Schematics here: http://www.electronics-lab.com/forum/attachments/power_supplay.jpg

    It's a high efficiency (>90%) regulator. The axial 50 uH inductance and a power P-channel FET allows up to about 2 Amps of output current, enough to drive the player and a 2 1/2" hard disk.
    The input is protected against inversed polarity and a transient protection diode is added for protection against surges and spikes in a automobile environment.
    On the board is also a LP2980 3.3V regulator for supplying the VS1001 and the 74LVC245 with 3.3V.

    Also a power supply shematic and small pdf about generating 5V and 3.3V on the same circuit. PDF is from another mp3 project.

    Schematic here: http://www.electronics-lab.com/forum/attachments/Power_Supply_v01.pdf


    Drivers:
    ----------------------------

    Here: http://www.electronics-lab.com/forum/attachments/USB Mass Storage Driver Win98.rar

    This is a sample driver for USB storage devices from microsoft.
     

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