ATAVRAUTO102 User Guide
3-9
7720A–AVR–06/07
3.3.1
Speed limitations
•
The limitation of the USB HID Class implies a limitation if the bit rate : the maximal
HID baudrate is 64 KByte/s, so 512 Kb/s. So, for a CAN Baudrate higher than
500Kb/s, a CAN load higher than 50% will imply the loss of CAN frames.
•
The Windows Operating System also implies limitations for the application: If
ATAnalyser is the only running application, the O.S. allows the application to
received USB frames only every 10 ms. A buffer permits to save received USB
frames but for very high bitrates, there could be a loss of received USB frames.
