AnsweredAssumed Answered

CAN FD 2Mbps buad rate is not working..

Question asked by jaewoo song on Apr 27, 2017
Latest reply on May 11, 2017 by jaewoo song

I develop ECU related CAN FD by using S32K144.

 

My product CAN FD baud rate requirement is 2Mbps.

CAN FD is not working in only 2Mbps.

I changed baud rate variously as 500kbps, 1Mbps, 1454kbps, 1777kbps.

But CAN FD is working well in all condition except for 2Mbps.

 

Below is setting of CAN FD for 2Mbps

 

<Processor expert of S32 Design studio>

1) PE clock source : Sys clock (40 MHz)

2) Arbitration Phase

- Propagation segment : 7

- Phase segment 1 : 6

- Phase segment 2 : 3

- Prescaler Division Factor : 3

- Resync jump width : 1

- Bitrate : 500kbps

- Sampling point : 80%

3) Data Phase

- Propagation segment : 11

- Phase segment 1 : 3

- Phase segment 2 : 3

- Prescaler Division Factor : 0

- Resync jump width : 1

- Bitrate : 2000kbps

- Sampling point : 80%

 

<Network Hardware Configuration of CANoe>

1) Mode : CAN FD

2) Arbitration phase

- Baud rate : 500kbps

- Sampling point : 80%

3) Data phase

- Baud rate : 2000kbps

- Sampling point : 80%

 

 

 

Thank you.

Outcomes