On Sat, Oct 13, 2007 at 04:39:19PM +0200, Uwe Hermann wrote: > just curious -- where do we get hardware to use with the USB Debug > Port debugging functionality in LinuxBIOS? Can you buy something in > stores?
Get the NET20DC from e.g. semiconductorstore.com. I paid USD 80+VAT+shipping. > Is this specialized, Yes. > high-price hardware? Not that bad. > Can you build your own? In theory, but it's too much work IMO. It must support high speed USB signalling and all the standalone chips that do are fine-pitch SMD which brings it's own set of issues with PCB manufacturing and supporting passive components even if one is comfortable soldering the .2mm wide pins by hand. > Are there any HOWTOs? The USB debug class device specification contains all you need to know about how the device functions. Note that the class spec describes a device with USB on both ends. That's not strictly neccessary as long as the host end of the device can keep up with the bandwidth - important because the debug port has reduced error recovery IIRC. //Peter -- linuxbios mailing list [email protected] http://www.linuxbios.org/mailman/listinfo/linuxbios
