Re: [linux-usb-devel] is 1 ms SOF interrupt ABSOLUTELY necessary???

2003-01-15 Thread Michael Hetherington
> > thanks but why 6MIPS and 48MIPS how are those number derived? > > i assumed for 12Mbps full speed??? that is about 1.5MByteps how > does it need 48Mips??? > > thanks if you can elaborate how you come up with those number??? thanks > > http://www.sxlist.com/techref/ubicom/lib/io/d

Re: [linux-usb-devel] is 1 ms SOF interrupt ABSOLUTELY necessary???

2003-01-14 Thread Michael Hetherington
You do not have to keep the rate of 1 ms exactly. Just do not allow idle periods of > 3m. It will suspend devices. Never worked with SL part. But if you want to byte-bang USB you need at least 6MIPS MCU for low-speed and 48MIPS for full speed. Well, and some external logic of course. Worked for m