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Altera_Forum's avatar
Altera_Forum
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20 years ago

FTDI chips & USB Blaster

I am just develloping a device which connects to a pc using a ftdi usb-chip solution - which is also used in the usb-blaster. If there is only one of these devices connected to the pc, everything wor...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

I've tried the same configuration and I've the same problem. When you connect the other FTDI chip (not usb blaster), windows found a different product/device id and ask you for a new driver. But the driver is the same. Try to add support for standard FTDI device/product id in the .inf file for usb blaster (driver/usb-blaster folder of your quartus home directory) (see appendix 2 for details http://www.ftdichip.com/resources/utilitie...user_guide.pdf) (http://www.ftdichip.com/resources/utilities/ftd2xxst_user_guide.pdf)).

PS: I've tried this !! It's only a suggestion !