CAN FD configurations

Ayaz — Fri, 12 Jul 2024 13:13:11 GMT

I am currently designing the CAN FD configurations, and i have some doubts i like to share with you :

1)My PE clock is 40MHz. is it the CANCLK or Sclock ?

2) Prescaler division factor , is it before added (+ 1) or after?

3) if I want to configure bit timing for the nominal phase when the following are enabled for CAN FD.

according to the RM i should follow the image below, right ?

4) when configuring , which value do i need to put , do i need to put the value for PSEG1 , FPSEG2 etc or the value of Time segments 1 and 2 ? Time quanta is it = Time segment 1 + Time segment 2 ?

Re: CAN FD configurations

Julián_AragónM — Fri, 12 Jul 2024 18:18:30 GMT

Hi @Ayaz,

1) PE Clock refers to CANCLK.

2) Before Tq.

3) & 4) Please refer to

MPC5xxx/S32Kxx/LPCxxxx: CAN / CAN FD bit timing calculation - NXP Community
FlexCAN bit timing calculation - NXP Community

for bit timing calculation.

Best regards,
Julián

topic Re: CAN FD configurations in S32K

CAN FD configurations

Re: CAN FD configurations