topic Re: About CPU clock and CAN supply clock in S32G

About CPU clock and CAN supply clock

kazuki — Thu, 21 Mar 2024 12:35:40 GMT

Please tell me about the sample project "Can_Llce_DS_Can2Can_S32G399A_M7".

I am investigating the CAN clock and CPU clock using S32DS.

Looking at the config of Can_43_LLCE
I found that CanCpuClokRef in the CanController settings refers to the MCU settings.
setting name="CanCpuClockRef" value="/Mcu_1/Mcu/McuModuleConfiguration/VS_0/CAN_PE_CLK"

CAN_PE_CLK was set to 4000000.
Are you aware that the CAN clock is 4000000Hz?
Also, I couldn't find any settings for the CPU clock.
Could you please tell me the CPU clock settings for the sample project?

Re: About CPU clock and CAN supply clock

Daniel-Aguirre — Thu, 21 Mar 2024 16:40:10 GMT

Hi,

Can you let us know with which LLCE/RTD package version are you working with?

Please, let us know.

Re: About CPU clock and CAN supply clock

kazuki — Thu, 21 Mar 2024 23:57:49 GMT

hello

thank you for your reply.

excuse me. It did not include version information.

The sample project used is the one included in S32G_LLCE_GATEWAY_1.0.5_QLP1_D2302.

The version is below.
LLCE:1.0.5
RTD: Real Time Drivers Version 4.0.0

This is the same version as LLCE and RTD described in 5. Configuring on S32CT of AN13423 in the document.

thank you.

Re: About CPU clock and CAN supply clock

Daniel-Aguirre — Fri, 22 Mar 2024 13:32:33 GMT

Hi,

Thanks for your feedback. We might be misunderstanding the request, if so, we apologize.

We understand that you are saying that CAN_PE_CLK frequency is 40MHz, is this correct?

If so, it is correct. We understand that under the NXP examples, this is the frequency given to CAN_PE_CLK.

As for the CPU Frequency, should be XBAR_CLK the one that provides the CPU frequency:

Please, let us know.