topic fcan_s32k_receive - Unrecognized function or variable 'mbd_s32k_fcan_receive_init' in Model-Based Design Toolbox (MBDT)

fcan_s32k_receive - Unrecognized function or variable 'mbd_s32k_fcan_receive_init'

johngreenjets — Tue, 05 Sep 2023 11:09:36 GMT

I have been successfully using the MBDB S32K1 4.3.0 add on, but it has now broke since I installed dSpace Configuration Desk (Release 2022-B) which integrates with MATLAB SImulink.

For some reason, the FCAN Receive blocks now show question marks...

If I try to do an update (CTRL-D) or a build, I now get the following error...

If I view the Mask Base of the block, the initialization tab seems to call the function 'mbd_s32k_fcan_receive_init'...

I have tried reinstalling MBDB S32K1 4.3.0 and also tried running mbd_s32k_path.m, but the problem still occurs.

If I run "which mbd_s32k_fcan_receive_init" from the MATLAB prompt it says it cannot be found.

Note: I am using the patch from this post which fixed a bug with the CAN extended ID...

https://community.nxp.com/t5/Model-Based-Design-Toolbox-MBDT/Extended-CAN-ID-not-working-UCANS32K146-development-board/m-p/1713869#M8460

The blocks appear to display correctly in the library browser...

However, if I add the block from the library browser to the simulink model, it displays the question marks and I get the same error.

How can I fix this ?

Re: fcan_s32k_receive - Unrecognized function or variable 'mbd_s32k_fcan_receive_init'

mariuslucianand — Mon, 11 Sep 2023 07:45:17 GMT

Hello @johngreenjets

Could you please let us know if the patch applied from this thread solved the reported issue as well?

https://community.nxp.com/t5/Model-Based-Design-Toolbox-MBDT/Extended-CAN-ID-not-working-UCANS32K146-development-board/m-p/1655647

Regards,

Marius

Re: fcan_s32k_receive - Unrecognized function or variable 'mbd_s32k_fcan_receive_init'

johngreenjets — Mon, 11 Sep 2023 07:58:54 GMT

Hi Marius

The patch fixed the extended CAN ID bug (I marked the post as solved).

But there is this new issue with the FCAN receive blocks i.e. Unrecognized function or variable 'mbd_s32k_fcan_receive_init'.

I'm not sure yet whether the patch has cause this new issue, I'm going to play around with uninstalling and installing etc

I did notice that before the patch, the mask initialization calls the function 'mbd_s32k_fcan_receive'...

Whereas after the patch, the mask initialization calls the function 'mbd_s32k_fcan_receive_init'...

This seems to work after the patch has been installed, but it appears that when MATLAB is restarted the blocks then show the 3 question marks and generates the error 'Unrecognized function or variable 'mbd_s32k_fcan_receive_init'

So that might be a clue ?

Re: fcan_s32k_receive - Unrecognized function or variable 'mbd_s32k_fcan_receive_init'

johngreenjets — Tue, 12 Sep 2023 10:08:30 GMT

I managed to find a work around.

In the following folder...

C:\MATLABAddOns\Toolboxes\NXP_MBDToolbox_S32K1xx\mbdtbx_s32k\mscripts\fcan

I made a copy of 'mbd_s32k_fcan_receive.p' and renamed the copy to 'mbd_s32k_fcan_receive_init.p' as shown in the screenshot below...

This appears to have fixed the problem, including the the bug with the extended CAN ID.

The patch to fix the extended CAN ID seems to change the function call in the the mask base of the FCAN receive block.

Before the patch, the initialization tab calls the function 'mbd_s32k_fcan_receive'.

After the patch, the initialization tab calls the function 'mbd_s32k_fcan_receive_init' (when MATLAB has been restarted after installing the patch).

What I dont know is if there is a difference between the two functions ''mbd_s32k_fcan_receive' and 'mbd_s32k_fcan_receive_init' ?

Because the 'mbd_s32k_fcan_receive_init' file is not included in the patch.