unable to open ftdi device with jtagkey-tiny

Hi,

I am using a jtagkey-tiny programmer .

Before getting the board done, I’d like to check

that the openocd toolchain works fine .

I’ve dowloaded the amontec drivers on their site, and

I installed it .

I’ve also downloaded and installed openocd for windows

version 0.4.0 from freddie chopin’s page .

With the jtagkey-tiny programmer plugged in without target board , from C:\Program Files\OpenOCD\0.4.0\ directory , I launch this command : bin\openocd.exe -f interface\jtagkey-tiny.cfg and get this message :

Error: unable to open ftdi device: device not found

Does someone knows what to do ?

Thanks,

Cédric