Transfer speed on CDC-Mode

2008-12-19T12:12:58+02:00

Avoid CDC mode if at all possible. The transfer rate with AVR-USB is lower than with all other modes because it eats so much (AVR-) CPU time. And it's not compatible with many Linux kernels and Windows Vista.

Statistics: Posted by christian — Fri Dec 19, 2008 12:12 pm

Transfer speed on CDC-Mode

2008-12-09T14:35:40+02:00

Hello,

i have a few questions about the CDC implementation of the usb-driver.

my usb-device is a monochrome LCD which receives Frames from the host.
currently i use the HID-Class to transfer data. at a blocksize of 246 Bytes i achieve a speed at ~15-18kB/s

Which transfer speed is possible in CDC-Mode? is there a way to change the baudrate?

Statistics: Posted by givemeaname — Tue Dec 09, 2008 2:35 pm

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Transfer speed on CDC-Mode

Transfer speed on CDC-Mode