S32K348 CANFD normal communication

[youngkin]

hello：

Can you provide a can fd sample(s32k344 or s32k3358), thanks!

[PetrS]

Hi,

you can refer to https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K358-FlexCAN-TXRX-ISR-S32DS35-RTD400-500...

BR, Petr

[youngkin]

Hello:

I have studied this example（ https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K358-FlexCAN-TXRX-ISR-S32DS35-RTD400-500...）, but I have a question, how do I set up the mailbox and filtering for CAN FD。 Should  I   add the can driver module 

youngkin_2-1761046846492.png

youngkin_1-1761046812116.png

and i  cannot find  the Mode of  can rx and tx （polling or  interrupt）

youngkin_0-1761046634231.png

Also, I would like to inquire about the examples of CAN. can sample use CAN mcal module（Can_43_FLEXCAN）, while Flexcan sample use Drivers module(Flexcan). Can  Flexcan module and  Can_43_FLEXCAN  module appear in the same project at the same time?

[PetrS]

Hi,

if using IP level driver then MB and mask is simply configured within code using respective API

PetrS_0-1761051486779.png

If using mcal level driver, ID and mask is defined in configuration, you outlined.

Flexcan_IP and  Can_43_FLEXCAN  modules can be used in the same project at the same time, but not for same FlexCAN instance.

BR, Petr

[youngkin]

I am sorry, I would like to confirm three questions，

1. i cannot find the Mode of can rx and tx （polling or interrupt）in the sample（Example-S32K358-FlexCAN-TXRX-ISR-S32DS35-RTD400）,   how to set  the mode of rx and tx?

youngkin_0-1761095849911.png

2. about the can clock set，This clock value only needs to be written as one value（Any value）。

youngkin_1-1761095936768.png

the can peripheral clock  need not  Choose a reference clock，as  show

youngkin_2-1761096322351.png

3.  the sample use the can interrupt, but i can not find the interrupt set

youngkin_3-1761097001570.png

[PetrS · Accepted solution]

Hi,

1) Using IP level driver this is set withing code

If FlexCAN_Ip_Send function is called with tx_info.polling=TRUE, then for each MB used you need to periodically call FlexCAN_Ip_MainFunctionWrite with respective MB selected as parameter. This is to process transmitted Tx MB and update driver status variable.

If tx_info.polling=FALSE, FlexCAN_Ip_MainFunctionWrite calling is not needed, but module interrupt must be properly enabled and handler assigned.

For receiving isPolling parameter of Receive function specifies interrupt/polling mode.

Here again if polling is used you need to call FlexCAN_Ip_MainFunctionRead periodically, otherwise module interrupt must be properly enabled and handler assigned.

2) correct

3) either you can assign/enable interrupt in IntCtrl_Ip component and within code just IntCtrl_Ip_Init(&IntCtrlConfig_0) is called or

leave this empty in IntCtrl_Ip component and assign/enable interrupt within code, like

IntCtrl_Ip_Init(&IntCtrlConfig_0);
IntCtrl_Ip_EnableIrq(FlexCAN0_1_IRQn);
IntCtrl_Ip_InstallHandler(FlexCAN0_1_IRQn, CAN0_ORED_0_31_MB_IRQHandler, NULL_PTR);

BR, Petr

[youngkin]

thanks for your help