S32KのトピックRe: S32K344 FLEXCAN

S32K344 FLEXCAN

Anushree_17 — Thu, 28 Nov 2024 09:24:43 GMT

1) I am using S32k3X4 EVB-Q172 board . i want to check CAN communication.

2)My first question is that how to set FLEXCAN protocol clock and bitrate.

3)Here i am attaching my project. could you please check the FLEXCAN Driver configuration and also check my main .c code. tell me if any changes required.

4) I am not getting CAN messages on bus master.

Re: S32K344 FLEXCAN

christopher356 — Thu, 28 Nov 2024 10:06:08 GMT

To ensure successful CAN communication on your S32K3X4 EVB-Q172, correctly configure the protocol clock and bitrate, initialize the FLEXCAN driver, set up message buffers and interrupts, and implement message transmission and reception. Refer to the device reference manual, use the S32K SDK, debug your code, and check hardware connections.

Re: S32K344 FLEXCAN

Anushree_17 — Thu, 28 Nov 2024 10:13:46 GMT

Can you please check the Flerxcan driver configuration and main.c code. and tell me what modifications do i need to in the driver configuration and main.c code.

so .it will helpful for me.

Thanks in advance.

Re: S32K344 FLEXCAN

Anushree_17 — Thu, 28 Nov 2024 12:00:34 GMT

Can anyone help me out. please.

Re: S32K344 FLEXCAN

PetrS — Thu, 28 Nov 2024 12:18:24 GMT

Hi,

a setting looks correct. Seems just pin init function (Siul2_Port_Ip_Init) is missing in your code.
Also be sure CAN transceiver is put n normal mode, so keep EN,/STB pins high.

BR, Petr

Re: S32K344 FLEXCAN

Anushree_17 — Thu, 28 Nov 2024 14:07:01 GMT

Hi, petrs.

I have added (Siul2_Port_Ip_Init) it in my main code. Code is building properly but iam not getting the Can message in S-bus. Why?

Here iam attaching my project can you check it out.

Re: S32K344 FLEXCAN

PetrS — Fri, 29 Nov 2024 08:31:55 GMT

Hi,

as I wrote be sure CAN transceiver is put in normal mode, so keep EN,/STB pins high.
You initialized /STB to have init value low.

So either change this to high or set pin high within code.

BR, Petr