topic How to set CAN-FD from classical CAN usage? in S32K

How to set CAN-FD from classical CAN usage?

f-nelson — Fri, 07 Feb 2025 08:53:47 GMT

Hi NXP:
we have used classic CAN bus(2.0/fix 8byte data)in s32k312 platform, now we would like to upgrade
CAN-FD format. I set CAN-FD parameters(classical CAN 500Kbit/CAN-FD 2Mbit) and connect to PCAN device, but
I don't know how to modify project as CAN-FD loopback, please help us, thanks.

attachement file:
PCAN_setting-connecting.png
s32k312_can-fd_setting.png
test_CAN.7z

Re: How to set CAN-FD from classical CAN usage?

Senlent — Fri, 07 Feb 2025 09:38:38 GMT

Hi@f-nelson

In your project, the flexcan module clock is set to 24MHz instead of 30MHz.

Please check the picture, I made some new modifications according to the 24MHz FlexCAN

clock for your reference.

Re: How to set CAN-FD from classical CAN usage?

f-nelson — Mon, 10 Feb 2025 00:50:27 GMT

Hi NXP:
It is mistake about example. in my project, we have been using clock source of AIPS_PLAT_CLK
which is normal speed(30Mhz) and works. becuase I'd like to give you a example, so I didn't change
this clock setting. please modify this example code based on 20250210-test_can.7z for modify CAN to CAN-FD
(64byte and BRS enable), thanks.

Re: How to set CAN-FD from classical CAN usage?

Senlent — Mon, 10 Feb 2025 06:45:43 GMT

Hi@f-nelson

The project you provided was modified and the RTD version used is RTD 5.0.0.

Re: How to set CAN-FD from classical CAN usage?

f-nelson — Tue, 11 Feb 2025 01:00:29 GMT

Hi Senlent:
it's good example for CAN-FD, many thanks.

Re: How to set CAN-FD from classical CAN usage?

f-nelson — Tue, 11 Feb 2025 01:01:12 GMT

it's good example for CAN-FD, many thanks.