1987724_en-US

[#1]

About entering IVOR1_Handler when using FlexCAN

When I used multiple CAN channels of MPC5748G in FreeRTOS, in the execution
FLEXCAN_DRV_RxFifo(INST_CANCOM2,&recvBuff);
Or FLEXCAN_DRV_Receive(INST_CANCOM2,RX_MAILBOX2,&recvBuff); Until we have this problem:
Enter into
IVOR1_Vector:
e_b IVOR1_Handler

Part of the program is as follows:

#if CAN1_EN
FLEXCAN_DRV_Init(INST_CANCOM1, &canCom1_State, &canCom1_InitConfig0); //CAN0
FLEXCAN_DRV_ConfigRxMb(INST_CANCOM1, RX_MAILBOX, &RXdataInfo1, RX_MSG_ID);
FLEXCAN_DRV_ConfigTxMb(INST_CANCOM1, TX_MAILBOX, &TXdataInfo1, TX_MSG_ID);
if(! canCom1_InitConfig0.fd_enable)
{
FLEXCAN_DRV_ConfigRxFifo(INST_CANCOM1,FLEXCAN_RX_FIFO_ID_FORMAT_A,&RX_id_table1);
}
FLEXCAN_DRV_InstallEventCallback(INST_CANCOM1,CAN_CallBackHandle,NULL);
if(canCom1_InitConfig0.fd_enable)
{
FLEXCAN_DRV_Receive(INST_CANCOM1,RX_MAILBOX,&recvBuff);
}
else
{
FLEXCAN_DRV_RxFifo(INST_CANCOM1,&recvBuff);
}
#endif
#if CAN2_EN
FLEXCAN_DRV_Init(INST_CANCOM2, &canCom2_State, &canCom2_InitConfig0); //CAN1
FLEXCAN_DRV_ConfigRxMb(INST_CANCOM2, RX_MAILBOX2, &RXdataInfo2, RX_MSG_ID);
FLEXCAN_DRV_ConfigTxMb(INST_CANCOM2, TX_MAILBOX, &TXdataInfo2, TX_MSG_ID);
if(! canCom2_InitConfig0.fd_enable)
{
FLEXCAN_DRV_ConfigRxFifo(INST_CANCOM2,FLEXCAN_RX_FIFO_ID_FORMAT_A,&RX_id_table2);
}
FLEXCAN_DRV_InstallEventCallback(INST_CANCOM2,CAN_CallBackHandle,NULL);
if(canCom2_InitConfig0.fd_enable)
{
FLEXCAN_DRV_Receive(INST_CANCOM2,RX_MAILBOX2,&recvBuff);
}
else
{
FLEXCAN_DRV_RxFifo(INST_CANCOM2,&recvBuff);
}

MPC5748G-GW-RDB 

回复： About entering IVOR1_Handler when using FlexCAN

I have solved this problem by increasing the FreeRTOS heap size.

This is done by increasing the size of configTOTAL_HEAP_SIZE in FreeRTOSConfig.h

Re: About entering IVOR1_Handler when using FlexCAN

Sure. Thank you very much for taking the time to help me troubleshooting the problem.
My project is a collection of ENET and CAN project based on the sample program, if you want to execute to send the wrong place, may require you to complete the TCP connection.
My test project looks like this:

Re: About entering IVOR1_Handler when using FlexCAN

Hi,

can you share full simplified project, so it can be tested?

BR, Petr