S32 SDKのトピックHow to config CAN RXFIFO on MPC5748G

How to config CAN RXFIFO on MPC5748G

yukunwu — Wed, 19 Sep 2018 06:38:40 GMT

Hi, All,

I'm using MPC5748G devkit to implement CAN Receice an CAN Send.

I saw there is an example code in "S32_SDK_MPC574xx_EAR_0.8.1" about FLEXCAN but it is only show how to receive an static CAN ID's message by using API[ FLEXCAN_DRV_Receive(uint8_t instance,uint8_t mb_idx,flexcan_msgbuff_t *data)]. I want to receive many CANID's message and then to sort and handle them, but i don't know how to config.

Could you please provide an example for me? Thanks~

uint32_t fifo_filter[5] = {0x111,0x222,0x333,0x444,0x555};
flexcan_id_table_t config_fifo = {
.isRemoteFrame = false,
.isExtendedFrame = false,
.idFilter = fifo_filter,
};

FLEXCAN_DRV_Init(INST_CANCOM1, &canCom1_State, &canCom1_InitConfig0);

FLEXCAN_DRV_SetRxMaskType(INST_CANCOM1, FLEXCAN_RX_MASK_GLOBAL);

FLEXCAN_DRV_SetRxFifoGlobalMask(INST_CANCOM1, FLEXCAN_MSG_ID_STD, 0x1FFFFFFF);

FLEXCAN_DRV_ConfigRxFifo(INST_CANCOM1, FLEXCAN_RX_FIFO_ID_FORMAT_A, &config_fifo);

flexcan_msgbuff_t recbuff;
for (;;) {
FLEXCAN_DRV_RxFifo(INST_CANCOM1, &recbuff);
}

Re: How to config CAN RXFIFO on MPC5748G

petervlna — Wed, 06 Mar 2019 07:48:42 GMT

Hi,

Unfortunately we do not have the example you are asking for, however you maybe fond use for examples which need to be ported tho MPC5748G micro from our repository:

Example MPC5744P FlexCAN TX RXFIFO ISR GHS614

https://community.nxp.com/docs/DOC-329623

regards,

Peter

Re: How to config CAN RXFIFO on MPC5748G

alexandrunan — Mon, 11 Mar 2019 08:29:25 GMT

Hello Wu,

You can find an example of initialization and read of CAN Rx FIFO here https://community.nxp.com/thread/473207 .

I advise you to use latest version of SDK available for Power Architecture RTM 2.0

BR,

Alexandru Nan