Receiving CAN MSG in SPC560p

Hello

I'm working on SPC560P and tried to receive CAN message as sample in examples discovery kits in spc5studio but still it's not working. I wrote below code:

void cfg0_Fifo_Rx(CANDriver *canp, CANRxFrame crfp){

if(crfp.ID == 0x811){

pal_lld_togglepad(PORT_A, Led_D5);

}

}

Would you please help me out with this.

Thanks.