[参考译文] MSPM0G3507-Q1：MSPM0G3507-Q1可以提供示例帮助

您好 Jace H：

我正在使用具有切换 LED 的500ms 延迟。 每500ms LED 切换一次、但 CRO 上不会出现任何 TX 数据...

我 还在共享代码...

/*
 * Copyright (c) 2021, Texas Instruments Incorporated
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 *    notice, this list of conditions and the following disclaimer in the
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 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 */

#include "ti_msp_dl_config.h"

/* This results in approximately 0.5s of delay assuming 32MHz CPU_CLK */
#define DELAY (16000000)

#define LED0_STATUS_ON ((uint8_t) 0x01)
#define LED0_STATUS_OFF ((uint8_t) 0x00)
#define LED1_STATUS_ON ((uint8_t) 0x01)
#define LED1_STATUS_OFF ((uint8_t) 0x00)

volatile bool gTXMsg;
volatile bool error;

int main(void)
{
    DL_MCAN_TxBufElement txMsg0;
    DL_MCAN_TxBufElement txMsg1;

    SYSCFG_DL_init();

    /* Initialize message0 to transmit. */

    /* Identifier Value. */
    txMsg0.id = ((uint32_t)(0x4)) << 18U;
    /* Transmit data frame. */
    txMsg0.rtr = 0U;
    /* 11-bit standard identifier. */
    txMsg0.xtd = 0U;
    /* ESI bit in CAN FD format depends only on error passive flag. */
    txMsg0.esi = 0U;
    /* Transmitting 4 bytes. */
    txMsg0.dlc = 1U;
    /* CAN FD frames transmitted with bit rate switching. */
    txMsg0.brs = 1U;
    /* Frame transmitted in CAN FD format. */
    txMsg0.fdf = 1U;
    /* Store Tx events. */
    txMsg0.efc = 1U;
    /* Message Marker. */
    txMsg0.mm = 0xAAU;
    /* Data bytes. */
    txMsg0.data[0] = LED0_STATUS_ON;

    /* Initialize message1 to transmit. */

    /* Identifier Value. */
    txMsg1.id = ((uint32_t)(0x3)) << 18U;
    /* Transmit data frame. */
    txMsg1.rtr = 0U;
    /* 11-bit standard identifier. */
    txMsg1.xtd = 0U;
    /* ESI bit in CAN FD format depends only on error passive flag. */
    txMsg1.esi = 0U;
    /* Transmitting 4 bytes. */
    txMsg1.dlc = 1U;
    /* CAN FD frames transmitted with bit rate switching. */
    txMsg1.brs = 1U;
    /* Frame transmitted in CAN FD format. */
    txMsg1.fdf = 1U;
    /* Store Tx events. */
    txMsg1.efc = 1U;
    /* Message Marker. */
    txMsg1.mm = 0xAAU;
    /* Data bytes. */
    txMsg1.data[0] = LED1_STATUS_ON;

    //NVIC_EnableIRQ(GPIO_SWITCHES_INT_IRQN);

    while (DL_MCAN_OPERATION_MODE_NORMAL != DL_MCAN_getOpMode(MCAN0_INST))
        ;

    //DL_GPIO_setPins(GPIO_LEDS_PORT, GPIO_LEDS_USER_LED_1_PIN);
    while (1) {
        /* Waits until button is pressed to send the message*/


      //  while (gTXMsg == false) {
       //     __WFE();
       // }
        delay_cycles(DELAY);
        gTXMsg = false;

        if (txMsg0.data[0] == LED0_STATUS_ON) {
            txMsg0.data[0] = LED0_STATUS_OFF;
        } else {
            txMsg0.data[0] = LED0_STATUS_ON;
        }

        if (txMsg1.data[0] == LED1_STATUS_ON) {
            txMsg1.data[0] = LED1_STATUS_OFF;
        } else {
            txMsg1.data[0] = LED1_STATUS_ON;
        }

        /* Write Tx Message to the Message RAM. */
        DL_MCAN_writeMsgRam(MCAN0_INST, DL_MCAN_MEM_TYPE_BUF, 0, &txMsg0);

        /* Write Tx Message to the Message RAM. */
        DL_MCAN_writeMsgRam(MCAN0_INST, DL_MCAN_MEM_TYPE_BUF, 1, &txMsg1);

        /* Add request for transmission. */
        DL_MCAN_TXBufAddReq(MCAN0_INST, 0);

        /* Add request for transmission. */
        DL_MCAN_TXBufAddReq(MCAN0_INST, 1);

        delay_cycles(DELAY);
        DL_GPIO_togglePins(GPIO_LEDS_PORT,GPIO_LEDS_USER_LED_1_PIN);
    }

}

void GROUP1_IRQHandler(void)
{
    switch (DL_Interrupt_getPendingGroup(DL_INTERRUPT_GROUP_1)) {
        case GPIO_SWITCHES_INT_IIDX:
            switch (DL_GPIO_getPendingInterrupt(GPIO_SWITCHES_PORT)) {
                case DL_GPIO_IIDX_DIO21:
                    gTXMsg = true;
                    break;
                default:
                    break;
            }
            break;
        default:
            break;
    }
}