S32KのトピックRe: CAN engine clock source s32k144

CAN engine clock source s32k144

lohrsistemas — Mon, 06 Mar 2017 19:27:27 GMT

How I enable core clock (78MHz in my case) to CAN engine clock source?

I set:

CAN0->CTRL1 = (CAN0->CTRL1 & ~CAN_CTRL1_CLKSRC_MASK) | CAN_CTRL1_CLKSRC(FLEXCAN_CLK_SOURCE_SYS);

But, in this case, I get bus clock...

Regards.

danielmartynek — Mon, 13 Mar 2017 13:53:38 GMT

Hi,

Sorry for the late reply.

I have compared reference manuals. Peripheral Clock Summary is different for each mask set:

S32K144_0N77P_RM (FRDMPK144-Q100):

S32K14x_RM_Rev2:

That’s probably the reason you cannot select SYS_CLK.

Regards

Daniel