ATAVRAUTO102 Atmel, ATAVRAUTO102 Datasheet - Page 10

• Manufacturer Part Number: ATAVRAUTO102
• Description: DEBUGGER KIT
• Manufacturer: Atmel
• Series: AVR®r
• Type: Evaluation kitr

Specifications of ATAVRAUTO102

• Contents: 2 Boards, cable and software
• Processor To Be Evaluated: AT90CAN128 and AT90USB1287
• Interface Type: USB
• For Use With/related Products: AT90CAN128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q3524911

3.3.1
ATAVRAUTO102 User Guide
Speed limitations
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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.
7720A–AVR–06/07
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