Max acheivable speeds?

eliscool · Post by **eliscool** » Mon Mar 26, 2007 9:59 am

Hi, I know this driver is supposed to be able to receive 1.5mbit/s, but does this not use the full clock cycles of the AVR at 12mhz? there wont be any time left to process the data would there?

Post by **christian** » Mon Mar 26, 2007 10:16 pm

1.5 Mbit is the bit rate on the physical layer. The actual data rate is MUCH slower for low speed devices. The spec mentions something between 30 to 40 kBytes/s, as far as I remember.

For actual speeds achieved with AVR-USB, see the thread "How fast is Software-USB".