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iqLink FTDI chip configuration manual

iqLink FTDI chip configuration manual

Owned by Former user (Deleted)
Last updated: Feb 11, 2017

FTDI chip is used in iqLink Product as USB PHY transceiver.

During the production phase, FTDI chip should be configured with correct parameters to provide correct functionality and maximum performance.

The following FTDI chip options should be configured:

  • The maximal current drawn through the USB port when the device is connected;
  • Pull-down IO pins In USB suspend mode;

  • CBUS3 pin should be configured as PWREN# in the internal MTP memory, and
    used to switch the power supply to the external circuitry.

The following values should be assigned:

  • Max current = 500mA;
  • Pull-Down = true;
  • CBUS C3 pin = POWEREN#

"FT_Prog" Software tool used to accomplish this task. Use the following guide for configuration:

  1.  Download and install latest "FT_Prog" software from the link provided:

    http://www.ftdichip.com/Support/Utilities.htm#FT_PROG

    (direct link http://www.ftdichip.com/Support/Utilities/FT_Prog_v3.1.72.360%20Installer.exe)


  2. Connect iqLink gadget with USB cable and make sure it's recognized by OS as Virtual COM Port connection.



  3.  Start "FT_Prog" software.
  4. After the main window appeared click "Scan" Button:



  5. Go to "Device ->USB Config Descriptor" node in the Device-Tree Navigator and set "Max Bus Power" parameter to 500mA.



  6. On the same view  (Device ->USB Config Descriptor) set "Bus-powered" Option to true (as long as iqLink powered by Bus):



  7. On the same view (Device ->USB Config Descriptor) set the "Pull Down IO Pins in USB Suspend" checkbox to true.



  8. Go to "Device->Hardware Specific->CBUS Signals" node in the Device-Tree Navigator and set "C3: property to the "PWREN" value.



  9. Click “Program Devices” button in the main ToolBar or choose menu "Devices" → "Program".



  10. In opened window "Program Devices" make sure connected device checked in Device List and click "Programm" button to program the memory:



  11.  Configuration complete.


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