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Home >> Support >>  FAQs >>  AX88772B

AX88772B FAQs
 
Driver Installation
 
  • 0001: How to identify authentic ASIX USB to LAN products inside?
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  • 0002: Where can I obtain the latest AX88772B drivers?
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  • 0003: Are AX88772B Windows drivers qualified by the WHQL compliant certification?
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  • 0004: Why don't ASIX's AX88772B standard drivers work with my AX88772B device?
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  • 0005: Which AX88772B Windows driver (32-bit or 64-bit) should I download for my Windows system?
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  • 0006: How can I install AX88772B Linux driver on my Android tablet PC?
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  • 0007: How to capture the VLAN tagged packets on Windows WireShark tool?
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  • 0008: Does AX88772B support Windows Surface RT 8.0/8.1 driver?
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  • 0009: How to isolate AX88772B Mac OS X driver cannot work fine issue after upgrading to new OS X system?
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    Design Considerations
     
  • 0010: Where can I obtain the latest AX88772B datasheet, reference schematic and other hardware design archives?
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  • 0011: How to open the gerber files of AX88772B demo board?
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  • 0012: How to open the PowerPCB PCB layout file of AX88772B demo board?
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  • 0013: Can ASIX help me to review my own AX88772B schematic and PCB layout?
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  • 0014: Do I need to develop AX88772B drivers by myself?
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  • 0015: What is the specification of 25MHz reference crystal of AX88772B demo board?
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  • 0016: What is the reference Ethernet transformer of the AX88772B demo board?
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  • 0017: What kind of EEPROM is supported by AX88772B?
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  • 0018: Can the EEPROM be eliminated on AX88772B applications?
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  • 0019: How do I program the AX88772B EEPROM?
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  • 0020: Do we need to register our own VID/PID for our AX88772B based application systems or can we use the ASIX's VID/PID?
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  • 0021: How do I register a Vendor ID from USB-IF?
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  • 0022: Do I have to assign a unique MAC address to every AX88772B based devices?
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  • 0023: How do I register a MAC/Ethernet address from IEEE-SA?
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  • 0024: Do I have to assign a unique serial number to every AX88772B based device?
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  • 0025: Did the AX88772B pass the USB-IF compliant certification?
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    Q0001: How to identify authentic ASIX USB to LAN products inside?
    A0001: If ASIX USB to LAN drivers cannot work fine on your USB to LAN device, please refer to How to identify authentic ASIX USB to LAN Products document to double check if your USB to LAN device includes a Non-authentic ASIX USB to LAN solution inside or not? If yes, please contact the manufacturer of your USB to LAN device to get proper drivers directly. ASIX DOES NOT GUARANTEE AND PROVIDE ANY SUPPORT FOR THOSE NON-AUTHENTIC ASIX PRODUCTS.
    The KY-88772A USB 2.0 to Fast Ethernet Adapter is a typical non-authentic ASIX USB to LAN product.

    Q0002: Where can I obtain the latest AX88772B drivers?
    A0002: Please visit the AX88772B Driver Download web page (http://www.asix.com.tw/download.php?sub=driverdetail&PItemID=105) for details.

    Q0003: Are AX88772B Windows drivers qualified by the WHQL compliant certification?
    A0003: Yes, all AX88772B Windows 7/Vista/XP 32-bit/64-bit drivers were qualified by Microsoft WHQL certification.

    Q0004: Why don't ASIX's AX88772B standard drivers work with my AX88772B device?
    A0004: All ASIX's AX88772B standard drivers are qualified with ASIX's AX88772B demo board with AX88772B default Vendor ID (0B95h) and Product ID (772Bh). Some of AX88772B manufacturers have their own Vendor ID and Product ID on their AX88772B applications. In this case, ASIX's AX88772B standard drivers will not work with your AX88772B device. Please contact the technical support of your AX88772B device manufacturer to obtain a proper driver.

    Q0005: Which AX88772B Windows driver (32-bit or 64-bit) should I download for my Windows system?
    A0005: You can easily download the AX88772B Windows 7, Vista or XP 32-bit/64-bit WHQL drivers setup program from AX88772B Driver Download web page (http://www.asix.com.tw/download.php?sub=driverdetail&PItemID=105) and then run the setup program to install a proper AX88772B Windows driver on your Windows machine directly.

    Q0006: How can I install AX88772B Linux driver on my Android tablet PC?
    A0006: No, it could not be done by end users. To install AX88772B Linux driver on your Android tablet PC, you have to recompile AX88772B Linux driver source on your target Android tablet platform and then you can install the compiled AX88772B Linux driver on your Android platform. It can only be done by the manufacturer of your Android tablet PC. Please contact the support guys of the manufacturer for further support if necessary.

    Q0007: How to capture the VLAN tagged packets on Windows WireShark tool?
    A0007: Please set the "Packet Priority & VLAN" parameter of ASIX USB to LAN Windows drivers to "Packet Priority & VLAN Disable" to capture the VLAN tagged packets on WireShark.

    Q0008: Does AX88772B support Windows Surface RT 8.0/8.1 driver?
    A0008: No, AX88772B doesn’t support Windows Surface RT 8.0/8.1 driver.

    Q0009: How to isolate AX88772B Mac OS X driver cannot work fine issue after upgrading to new OS X system?
    A0009: Please try to un-install the existing installed AX88772B driver firstly and then re-install the latest AX88772B Mac OS X driver (http://www.asix.com.tw/download.php?sub=driverdetail&PItemID=105) to improve this kind of issue. If you still have problems, please refer to Section 4 of AX88772B Mac OS X driver installation guide in the driver package to isolate your issue.
    Q0010: Where can I obtain the latest AX88772B datasheet, reference schematic and other hardware design archives?
    A0010: Please register MyASIX membership (http://www.asix.com.tw/RegLogin.php?mod=thisis) and then download the latest AX88772B datasheet, reference schematic, gerber/PCB layout files and application design note from AX88772B Product web page (http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=105;71;101&PLine=71) directly.

    Q0011: How to open the gerber files of AX88772B demo board?
    A0011: You can open the gerber files of AX88772B demo board by running ORACLE's AutoVue Evaluation Revision tool (30 days evaluation date). Please visit ORACLE's web site (http://www.oracle.com/) for more details.

    Q0012: How to open the PowerPCB PCB layout file of AX88772B demo board?
    A0012: You can open the PowerPCB PCB layout file of AX88772B demo board by running Mentor Graphics PADS Layout Product Evaluation Software (No time limitation but with limited function). Please visit Mentor Graphics' web site (http://www.mentor.com/) for more details.

    Q0013: Can ASIX help me to review my own AX88772B schematic and PCB layout?
    A0013: Yes, please deliver your own AX88772B schematic and PCB layout files to ASIX's Support (support@asix.com.tw) for further review before making your own AX88772B PCB board.

    Q0014: Do I need to develop AX88772B drivers by myself?
    A0014: No, the AX88772B already supports available device drivers for most of operating systems such as Windows 7/Vista/XP, Linux, Mac OSX, WinCE/Mobile, etc. Please visit AX88772B Driver Download web page (http://www.asix.com.tw/download.php?sub=driverdetail&PItemID=105) for details.

    For some special OS supporting requirements, please contact ASIX's sales (sales@asix.com.tw) for further support.

    Q0015: What is the specification of 25MHz reference crystal of AX88772B demo board?
    A0015: The 25MHz crystal signals of AX88772B board should be winthin 25MHz +- 50ppm. Please refer to AX88772B USB-to-LAN Application Design Note for details.

    Q0016: What is the reference Ethernet transformer of the AX88772B demo board?
    A0016: The reference Ethernet transformer on the AX88772B demo board is the Bothhand LU1S041X LF (Turns Ratio 1CT:1CT, Auto-MDIX) single RJ-45 connector module with integrated 10/100 BASE-TX magnetic. Please refer to AX88772B USB-to-LAN Application Design Note for the detailed Ethernet magnetic circuit information.

    Q0017: What kind of EEPROM is supported by AX88772B?
    A0017: The AX88772B supports 16-bit mode 93C56 or 93C66 EEPROM.

    Q0018: Can the EEPROM be eliminated on AX88772B applications?
    A0018: Yes, the AX88772B supports the embedded Device Descriptors ROM and 512 bytes ID-SRAM (online programmable memory for USB Device Descriptors, etc) to save external EEPROM for AX88772B on-board design applications. For AX88772B USB to LAN dongle applications, we don't suggest to eliminate the EEPROM.

    Q0019: How do I program the AX88772B EEPROM?
    A0019: AX88772B supports some default settings inside chip hardware to enable it to communicate with USB host controller during enumeration when the AX88772B EEPROM is blank (prior to being programmed). The default settings inside chip facilitate users to update the EEPROM content through a Windows PC during R&D validation process or program a blank EEPROM mounted on target system PCB during manufacturing process.

    ASIX Electronics provides Windows/WinCE/Linux SROM programming tools for users to easily program the Serial EEPROM of AX88772B on a typical Windows/WinCE/Linux platforms. These AX88772B SROM programming tools support to customize the MAC address, Serial Number, Vendor ID and Product ID, etc. for AX88772B based application systems in mass production.

    Alternatively, users can pre-program the blank EEPROM on a 3rd Party Universal Programmer before soldering the EEPROM onto the AX88772B application device. You must assign a unique MAC address in the EEPROM for every AX88772B device.

    Q0020: Do we need to register our own VID/PID for our AX88772B based application systems or can we use the ASIX's VID/PID?
    A0020: The answers to above questions really depend on user's product applications and target market, which can be different on individual cases. Below gives customers some general guidelines about whether one can use ASIX's VID/PID or one should better register its own one with USB-IF.

    1.Case where it is OK to use ASIX Electronics's VID (0B95h) and PID (772Bh):

    You may be able to use ASIX Electronics' VID and PID when your AX88772B based application system can simply work with AX88772B standard drivers provided by ASIX without any modification and you don't have any concern from business and product marketing perspective to use the same VID and PID on your products as ASIX's other customers who are also using ASIX's VID and PID. ASIX Electronics would like to request customers to inform ASIX sales staffs by sending us email at sales@asix.com.tw beforehand if you would like to use ASIX Electronics VID and PID for your products.

    In other words, if your AX88772B based application system requires you to modify AX88772B driver on your own or by ASIX support team, you might have to register your own VID and PID. This can avoid your end customers from going to ASIX web site to download the AX88772B standard driver which may not be suitable to work with the specific AX88772B based application system.

    2.Cases requiring you to use your own VID and PID

    (1) Your AX88772B based application systems can't work directly with AX88772B standard drivers which ASIX Electronics release on its web site and your target application system (such as USB dongle or docking station) may allow your end customers to update the standalone AX88772B driver by themselves after sales. In that case, you MUST assign your own unique VID and PID for your AX88772B based devices.

    (2) For brand name products, you probably don't want your AX88772B based devices to become compatible with other company's AX88772B based devices. In this case, you should consider assigning your own unique VID and PID for your AX88772B based devices.

    You can register your own VID from USB Implementers Forum, Inc. and define the PID based on your company rules.

    Q0021: How do I register a Vendor ID from USB-IF?
    A0021: If you are a new USB product developer looking to get a Vendor ID for your company, you can register a Vendor ID from USB Implementers Forum, Inc. Please visit the USB-IF web site (http://www.usb.org/developers/vendor/) for details.

    Q0022: Do I have to assign a unique MAC address to every AX88772B based devices?
    A0022: Yes, every Ethernet device must have a unique MAC address. Users should always assign a unique MAC address in the AX88772B EEPROM for every AX88772B based devices.

    Q0023: How do I register a MAC/Ethernet address from IEEE-SA?
    A0023: You must first have an OUI or an IAB, to which you then append 24 or 12 bits respectively, in a way that makes the resulting 48-bit number unique, i.e., your 24 or 12 bits must be unique within your organization, which will require coordination among all the users of your organization's OUI or IAB. Please visit the IEEE-SA web site (http://standards.ieee.org/regauth/registry_OUI.html) for details.

    Q0024: Do I have to assign a unique serial number to every AX88772B based device?
    A0024: No, it depends on the real requirement of your AX88772B target application. If users need to install more than one AX88772B based devices on your target application, you should assign a different serial number in the EEPROM for every AX88772B device.

    If your target application always uses one AX88772B device, you can consider assigning the same serial number in the EEPROM for every AX88772B device for easy maintenance in mass production, especially if you plan to use a Windows PC to test AX88772B based devices repeatedly during mass production test.

    Q0025: Did the AX88772B pass the USB-IF compliant certification?
    A0025: Yes, AX88772B demo board was certified by USB-IF.

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