Re: [Libusb-win32-devel] Error: unable to open ftdi device

[<Pet...@t-...>]

Hello Xiaofan,

in the meantime I´ve already recognized my fault. I´ve told that question to the OpenOCD mailing list, and I´ve got a very good support by Paul Fertser. But thank you for your comment: now it is clear for me.

Best regards,
Peter

-----Original-Nachricht-----
Betreff: Re: [Libusb-win32-devel] Error: unable to open ftdi device
Datum: 2019-04-07T05:26:05+0200
Von: "Xiaofan Chen" <xia...@gm...>
An: "Pet...@t-..." <Pet...@t-...>, "lib...@li..." <lib...@li...>

In order to use OpenOCD under Windows you have to use a supported driver.

For FTDI device, the recommended driver is to use WinUSB and use libusb-1.0
Windows (libusb-1.0.dll) and not libusb-win32 together with OpenOCD. Yet
another possibility is usbdk driver, again with libusb-1.0 Windows and not
libusb-win32.

You should ask for more help in OpenOCD mailing list. This is the wrong
mailing list for OpenOCD. This is also not the correct mailing list for
libusb-1.0 Windows.

Regards,
Xiaofan

On Wed, Mar 27, 2019 at 6:41 PM Pet...@t-...
<Pet...@t-...> wrote:
>
> Hello all,
>
>
>
> I waant to use a mikrocontroller board communicatin by OpenOCD via USB. I´ve installed
>
> https://sourceforge.net/projects/libusb-win32/
>
>
>
> And when I connect that device at USB I see two entries
>
> USB Serial Converter A (Interface 0)
>
> USB Serial Converter B (Interface 1)
>
>
>
> Both with Driver libusb0 (v1.2.6.0)
>
> USB ID 0403 6010 00
>
>
>
> I use a config file thm_arduino.cfg with the follwoing entries:
>
>
>
> interface ftdi
> ftdi_device_desc "OOCDLink"
> ftdi_vid_pid 0x0403 0x6010
>
>
>
> and run on console of my Windows Vista Business Service Pack 2 (latest version)
>
>
>
> openocd -f C:\Users\oehler\workspace\Labor3\interface\thm_arduino.cfg -f C:\Users\oehler\workspace\Labor3\mrt\board\thm_arduino.cfg
>
>
>
> But I am getting always the message:
>
>
>
> Error: no device found
>
> Error: unable to open ftdi device with vid 0403, pid 6010, description 'OOCDLink', serial '*' at bus location '*'
>
>
>
> Why OpenOCD can not find that device? What can I do to further check that the driver is correct installed?
>
>
>
> Best regards,
>
> Dr. Peter Oehler
>