Fwd: Help: libftdi (serial_test) won't work on my windows 7 64 bits bench

[James Liu <jupiturliu@xxxxxxxxx>]

Hi All,

   We are right now running a project which need high speed usbserial controller. We are evaluating ft2232H chip with running several programs from the package libftdi1git_devkit_mingw64 Xiaofeng provided on Linux(Ubuntu 12.04) and Windows 7(64bits). Linux is totally fine and running very smoothly. However, We got several problems on Windows 7(64 bits):

1. Loopback tests:

   We connect port A to port B of controller to do loopback test.

    We ran below program for writing in one terminal

    E:\downloads\libftdi1git_devkit_mingw64\bin64>serial_test.exe -v0x403 -p0x6010 -i1 -w12

    However, when we ran below program in another terminal for reading , we always got below error

    E:\downloads\libftdi1git_devkit_mingw64\bin64>serial_test.exe -v0x403 -p0x6010 -

i2 

           unable to open ftdi device: -4 (usb_open() failed)

2. Then we did second test with two ft2232h connect with each other through port (interface) 2.

   We ran below program in one PC(windows 7) 

   E:\downloads\libftdi1git_devkit_mingw64\bin64>serial_test.exe -v0x403 -p0x6010 -i2 -w12

   and ran another program in another PC(windows)

   E:\downloads\libftdi1git_devkit_mingw64\bin64>serial_test.exe -v0x403 -p0x6010 -i2
   We can tell that data was written into port 2 of one controller through SysNucleus USBTrace tool.

   But we never receive any data from port 2 of controller in another PC.

3. The reason why I know the serial_test works on Linux because I can see print out from serial_test.Here are command I ran on Linux

  1. ./serial_test  -v0x403 -p0x6010 -i1 -w12  //write 0x0C into buffer

   2. ./serial_test  -v0x403 -p0x6010 -i1  //Read

  I can keep on reading the data from read side. I tried on Windows 7 32 bits system today and no lucky to get it works. I was wondering have the code been tested on windows before?

  Appreciate for any of your advice in advance. 

  Regards,

  James

--
********************************************************************************
The information contained in this communication is confidential, may be
attorney-client privileged, may constitute inside information, and is intended
only for the use of the addressee. It is the property of the
sender of this e-mail. Unauthorized use, disclosure, or copying of this
communication or any part thereof is strictly prohibited and may be unlawful.
If you have received this communication in error, please notify us immediately
by return e-mail and destroy this communication and all copies thereof,
including all attachments.
********************************************************************************

---

libftdi - see http://www.intra2net.com/en/developer/libftdi for details.
To unsubscribe send a mail to libftdi+unsubscribe@xxxxxxxxxxxxxxxxxxxxxxx