S32 Design StudioのトピックRe: How to change PE clock in CAN config

How to change PE clock in CAN config

kbj — Wed, 20 Jun 2018 00:42:39 GMT

I want to set CAN bit rate to 5Mbps.

But at PE clock 8MHz, max bit rate that I can set is 1Mbps.

So I want to change PE clock, but I don't find how to change PE clock.

Please let me know how to change PE clock.

martin_kovar — Wed, 20 Jun 2018 11:46:22 GMT

Hello,

could you please specify, which microcontroller you use, which version of S32DS you use and which version of SDK you use?

Regards,

Martin

kbj — Wed, 20 Jun 2018 23:29:41 GMT

Hi,

I use following things.

MCU : S32K144

Compiler : S32DS for ARM Version 2018.R1

SDK : SDK_S32K14x_09

Thanks and best regards,

Byugnju

martin_kovar — Thu, 21 Jun 2018 11:43:40 GMT

Hello,

use flexcan module instead of can_pal module. Flexcan module allows to set PE Clock in processor expert. See the figures below:

Regards,

Martin

kbj — Thu, 21 Jun 2018 23:58:40 GMT

Hi,

Thanks for your help.

I changed PE clock to 48MHz.

But at 48MHz PE clock, Maximum CAN FD bitrate is 4.8Mbps.

I can not set over 5Mbps.

I want to set over 5Mbps.

How to set 5Mbps CAN FD?

Beat regards,

Byungju.