topic Re: MPC5748G RXIMR can receive multiple CAN id? in MPC5xxx

MPC5748G RXIMR can receive multiple CAN id?

Ada_Lovelace — Tue, 01 Mar 2022 05:32:39 GMT

Hi,all

I have use the chip by CAN FD mode.

Then IRMQ = 1, I use RXIMR to receive id, I want to receive 0x120~0x12F,

So I set the code:

for(i=0;i<96;i++)

{

CAN_1.RXIMR[i].R = 0x1FFFFFFF;

}

CAN_1.MB[41].CS.B.IDE = 0;

CAN_1.MB[41].ID.B.ID_STD = 0x120;

CAN_1.RXIMR[41] = 0x3F0<<18;

CAN_1.MB[41].CS.B.CODE = 4;

But It can only receive 0x120, what shoule I change to sovle it?

Re: MPC5748G RXIMR can receive multiple CAN id?

PetrS — Tue, 01 Mar 2022 09:02:55 GMT

Hi,

code looks fine, but do you really have IRMQ=1 and set RXIMR in Freeze mode?
You can check within debugger, when module is put in Freeze mode, a setting of the MB and RXIMR.

BR, Petr

Re: MPC5748G RXIMR can receive multiple CAN id?

Ada_Lovelace — Wed, 02 Mar 2022 00:41:28 GMT

Hi,Petr

I debug the project, IRMQ=1,RXIMR[41]= 0xFC00000,

But when I send 0x122, flag could not be set.

Re: MPC5748G RXIMR can receive multiple CAN id?

PetrS — Wed, 02 Mar 2022 09:47:30 GMT

Hi,

for test, try to clear that RXIMR, does it receive all IDs?
Or share your project.

BR, Petr