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Altera_Forum's avatar
Altera_Forum
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14 years ago

multiple usb blaster in Q11.1 sp1

hi all,

I'm using quartus v11.1 sp1.

I've got two project and two board, I need to use two usb blaster.

But my problem is I can only see one usbblaster component [USB-0].

It looks like windows can't assign (for exemple) [USB-1] to the second device.

When I got to the device manager I've got a error code 42 which said that windows is unable to assign an other id to the new usb blaster.

I've got windows xp.

I've already did the same thing when I used quartus v9.1 and it works.

Thanks.

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Try to disconnect USB-to-UART (FT232 based) devices if You have any connected to the PC.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    the USB Blasters have the same serial or something similar. i believe there are instructions for correcting this somewhere on the forum, try searching