topic Re: Why cant i change CAN bus bit rate to 500kbps on MK20? in Kinetis Software Development Kit

Why cant i change CAN bus bit rate to 500kbps on MK20?

yarannan — Tue, 08 Dec 2015 23:12:27 GMT

Hi there,

I am using KSDK1.2 on KDS 3.0 with MK20DX256VL10.

I tried to follow the K60 CAN example. And so far, two

of can bit rate configuration (125kbps and 250 kbps) works.

Once i move up to 500kbps. It doesnt work anymore.

The physical interface I used is NXP TJA1051. It could go

up to 2Mbits/s.

Is there any thing that I probably missed from above?

Please point out. I am really frustrated...

Thanks,

Yaran

Re: Why cant i change CAN bus bit rate to 500kbps on MK20?

Hui_Ma — Fri, 11 Dec 2015 06:58:28 GMT

Hi,

Please refer below FlexCAN bit timing setting for 500KHz, which is based on TWR-K60D100M with bus clock 48MHz:

Wish it helps.
Have a great day,
Ma Hui

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