Hi Jorg, I havent implemented this core, but I can answer your question in a limited way. The project you have planned is very much possible using USB2.0. For the driver, you can use built-in USB audio class HID drivers provided in windows itself. You just have to report the descriptors appropriately from hardware. A suitable audio codec can be used to interface your digital data to be converted to analog and output to a speaker. The philips 1341 is a good stereo audio codec. You might have to develop its interfacing logic within your Spartan. Hope this helps, Regards Rohit ----- Original Message ----- From: joerg.wille@j...> To: usb@o...> Sent: 13 October 2004 22:07 Subject: [usb] USB Bandwidth & Driver Hi, I just found this USB project on opencores and I got some important questions. - Has anyone implemented this core on a Spartan II (I use the development board for now) and made bandwidth-messuring for "real-life" application? (I plan to read/write 8 Channel of Audio 24Bit@96Khz) Would this be possible? - Is there a starting point for programming a windows device driver for the USB part? Has anyone already developed one, is there maybe source-code for it or can someone at least give me ideas what I have to consider. - Can I find the scematics how to connect to the PHY somewhere? Thanks, Jörg. _______________________________________________ http://www.opencores.org/mailman/listinfo/usb

- Is there a starting point for programming a windows
device driver for the USB part? Has anyone already
developed one, is there maybe source-code for it
or can someone at least give me ideas what I
have to consider.

- Can I find the scematics how to connect to the PHY
somewhere?