[参考译文] MSPM0G3107：CANFD：收到的消息不触发回调函数

您好！  

您能否启用 RX FIFO 新消息中断并检查您是否可以正确进入该中断例程。 对于回叫、您是指在收到某条消息时发回消息？

此致、

Cash Hao

您好！

我可以确认我启用了 RX FIFO 新消息中断、但它没有进入中断例程、也就是说、回调函数是在 ti_msp_dl_config.h 中指定的、称为 MCAN0_INST_IRQHandler  

因此、在这种情况下、回调函数不是处理传入消息的函数

这是 CANFD 的 init 函数

SYSCONFIG_WEAK void SYSCFG_DL_MCAN0_init(void) {
    DL_MCAN_RevisionId revid_MCAN0;

    DL_MCAN_enableModuleClock(MCAN0_INST);

    DL_MCAN_setClockConfig(MCAN0_INST, (DL_MCAN_ClockConfig *) &gMCAN0ClockConf);

    /* Get MCANSS Revision ID. */
    DL_MCAN_getRevisionId(MCAN0_INST, &revid_MCAN0);

    /* Wait for Memory initialization to be completed. */
    while(false == DL_MCAN_isMemInitDone(MCAN0_INST));

    /* Put MCAN in SW initialization mode. */

    DL_MCAN_setOpMode(MCAN0_INST, DL_MCAN_OPERATION_MODE_SW_INIT);

    /* Wait till MCAN is not initialized. */
    while (DL_MCAN_OPERATION_MODE_SW_INIT != DL_MCAN_getOpMode(MCAN0_INST));

    /* Initialize MCAN module. */
    DL_MCAN_init(MCAN0_INST, (DL_MCAN_InitParams *) &gMCAN0InitParams);

    /* Configure MCAN module. */
    DL_MCAN_config(MCAN0_INST, (DL_MCAN_ConfigParams*) &gMCAN0ConfigParams);

    /* Configure Bit timings. */
    DL_MCAN_setBitTime(MCAN0_INST, (DL_MCAN_BitTimingParams*) &gMCAN0BitTimes);

    /* Configure Message RAM Sections */
    DL_MCAN_msgRAMConfig(MCAN0_INST, (DL_MCAN_MsgRAMConfigParams*) &gMCAN0MsgRAMConfigParams);



    /* Set Extended ID Mask. */
    DL_MCAN_setExtIDAndMask(MCAN0_INST, MCAN0_INST_MCAN_EXT_ID_AND_MASK );

    /* Loopback mode */

    /* Take MCAN out of the SW initialization mode */
    DL_MCAN_setOpMode(MCAN0_INST, DL_MCAN_OPERATION_MODE_NORMAL);

    while (DL_MCAN_OPERATION_MODE_NORMAL != DL_MCAN_getOpMode(MCAN0_INST));

    /* Enable MCAN mopdule Interrupts */
    DL_MCAN_enableIntr(MCAN0_INST, MCAN0_INST_MCAN_INTERRUPTS, 1U);

    DL_MCAN_selectIntrLine(MCAN0_INST, DL_MCAN_INTERRUPT_BO|DL_MCAN_INTERRUPT_RF0N|DL_MCAN_INTERRUPT_RF1N|DL_MCAN_INTERRUPT_TFE, DL_MCAN_INTR_LINE_NUM_0);
    DL_MCAN_enableIntrLine(MCAN0_INST, DL_MCAN_INTR_LINE_NUM_0, 1U);
    DL_MCAN_selectIntrLine(MCAN0_INST, DL_MCAN_INTERRUPT_RF0N|DL_MCAN_INTERRUPT_RF1N, DL_MCAN_INTR_LINE_NUM_1);
    DL_MCAN_enableIntrLine(MCAN0_INST, DL_MCAN_INTR_LINE_NUM_1, 1U);

    /* Enable MSPM0 MCAN interrupt */
    DL_MCAN_clearInterruptStatus(MCAN0_INST,(DL_MCAN_MSP_INTERRUPT_LINE0
		 | DL_MCAN_MSP_INTERRUPT_LINE1));
    DL_MCAN_enableInterrupt(MCAN0_INST,(DL_MCAN_MSP_INTERRUPT_LINE0
		 | DL_MCAN_MSP_INTERRUPT_LINE1));

}

您好！

我正在检查您的 init 函数代码。 为什么要  同时在中断线路0和1上映射 DL_MCAN_INTERRUPT_RF0N 和 DL_MCAN_INTERRUPT_RF1N？ 它只能映射到这里的一个中断线路。  

代码的另一部分看起来不错。 演示代码可以在您的电路板上正常工作、因此您对应用进行了哪些更改？

此致、

Cash Hao

很高兴知道您解决了问题！