S32K148 - Change CAN FD baudrate

Chandra13 — Thu, 05 Jan 2023 20:46:23 GMT

Hello,

I am using the flexcan_encrypted_s32k148 from S32_SDK_S32K1xx_RTM_4.0.3 for the S32K148EVB and I need to send CAN messages at a baudrate of 1000 kbps.

I went through these old forums to help with my case and here is my observation,

MPC5xxx/S32Kxx: CAN / CAN FD bit timing calculatio... - NXP Community - fprescalar=2, fpropseg=5, fpseg1=7, fpseg2=7, frjw=7 after selecting the baudrate FD to 1000 (Cell G5)

2. Solved: S32 Flexcan baud rate is equal to 1000K, send fai... - NXP Community - fprescalar=3, fpropseg=4, fpseg1=1, fpseg2=1, frjw=3

I tried both the settings into my code, but my Vector CAN still receives them at 500 kbps only. If I change the settings in canoe to 1000, it fails.

I created a variable of type flexcan_time_segment_t and used the FLEXCAN_DRV_SetBitrateCbt function to set the baud rate.

Re: S32K148 - Change CAN FD baudrate

Robin_Shen — Fri, 06 Jan 2023 01:43:10 GMT

Hi Chandra13,

Have you test the CAN_PAL example? Change the Bitrate of Arbitration Phase and Data Phase and then click Update Code. The example select Oscillator clock(8Mhz) as PE clock source, you can select Peripheral clock.

Best Regards,
Robin
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topic S32K148 - Change CAN FD baudrate in S32K

S32K148 - Change CAN FD baudrate

Re: S32K148 - Change CAN FD baudrate