AM6442: AM6442: Baud rate tolerance problem of the CAN interface

? ??

Part Number: AM6442

Tool/software:

A recent project uses AM6442 as a CAN controller for communication, and the CAN controller on the docking processor may have a 4.8% baud rate deviation.

What is the maximum baud rate deviation tolerance of CAN controller of AM6442? Can AM64 accept 4.8% baud rate deviation of CAN.

1 month ago

0 Aparna Patra 1 month ago

TI__Genius 12630 points

Please refer: https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1368829/tcan1043a-q1-baud-rate-deviation-calculation/5238898#5238898

0 ? ?? 1 month ago in reply to Aparna Patra

Prodigy 230 points

Must same with OSC accuracy?

Our application is TI CAN controller communicate with another CAN controller which has some deviation like this:

The bit time probability sent by the TX terminal is changed stretch, if the controller is configured according to the 1Mbps baud rate, the TX terminal time will change from the standard 1us in some scenarios at 1.048us, there is a deviation of about 4.8% in the baud rate.

In the 1Mbps baud rate scenario,When the bit time is stretched,Does TI CAN controller corresponding bit can still be correctly sampled?

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AM6442: AM6442: Baud rate tolerance problem of the CAN interface