S32K144-EVB开发板CAN实例代码

以下是S32K144-EVB开发板CAN实例代码，供参考：

#include "S32K144.h"

#define CAN0_TX_PIN 16U  /* PTC16 */
#define CAN0_RX_PIN 17U  /* PTC17 */

void CAN0_Init(void)
{
    /* Enable the clock to the module */
    PCC->PCCn[PCC_PORTC_INDEX] |= PCC_PCCn_CGC_MASK;
    PCC->PCCn[PCC_FlexCAN0_INDEX] |= PCC_PCCn_CGC_MASK;

    /* Configure the pins for CAN0 */
    PORTC->PCR[CAN0_TX_PIN] &= ~PORT_PCR_MUX_MASK;
    PORTC->PCR[CAN0_TX_PIN] |= PORT_PCR_MUX(2);
    PORTC->PCR[CAN0_RX_PIN] &= ~PORT_PCR_MUX_MASK;
    PORTC->PCR[CAN0_RX_PIN] |= PORT_PCR_MUX(2);

    /* Reset the module */
    FLEXCAN0->MCR |= FLEXCAN_MCR_SOFTRST_MASK;
    while (FLEXCAN0->MCR & FLEXCAN_MCR_SOFTRST_MASK);

    /* Configure the module */
    FLEXCAN0->MCR |= FLEXCAN_MCR_FRZ_MASK;
    FLEXCAN0->MCR |= FLEXCAN_MCR_MDIS_MASK;
    FLEXCAN0->CTRL1 |= FLEXCAN_CTRL1_CLKSRC_MASK;
    FLEXCAN0->CTRL1 |= FLEXCAN_CTRL1_PRESDIV(0x01);
    FLEXCAN0->CTRL1 &= ~FLEXCAN_CTRL1_LBUF_MASK;
    FLEXCAN0->MCR &= ~FLEXCAN_MCR_MDIS_MASK;
    while (FLEXCAN0->MCR & FLEXCAN_MCR_LPMACK_MASK);
    while (!(FLEXCAN0->MCR & FLEXCAN_MCR_FRZACK_MASK));
    FLEXCAN0->MCR &= ~FLEXCAN_MCR_FRZ_MASK;

    /* Configure the mailbox */
    FLEXCAN0->MB[0].CS |= FLEXCAN_MB_CS_IDE_MASK;
    FLEXCAN0->MB[0].ID |= FLEXCAN_MB_ID_IDSTD(0x123);
    FLEXCAN0->MB[0].CS |= FLEXCAN_MB_CS_RTR_MASK;
    FLEXCAN0->MB[0].CS |= FLEXCAN_MB_CS_DLC(8);
    FLEXCAN0->MB[0].CS |= FLEXCAN_MB_CS_CODE(FLEXCAN_MB_CODE_TX_INACTIVE);
}

void CAN0_Send(uint8_t *data)
{
    uint32_t i;

    /* Copy data to mailbox */
    for (i = 0; i < 8; i++)
    {
        FLEXCAN0->MB[0].DATA[i] = data[i];
    }

    /* Send the message */
    FLEXCAN0->MB[0].CS &= ~FLEXCAN_MB_CS_CODE_MASK;
    FLEXCAN0->MB[0].CS |= FLEXCAN_MB_CS_CODE(FLEXCAN_MB_CODE_TX_ONCE);
}

int main(void)
{
    uint8_t data[] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};

    CAN0_Init();
    CAN0_Send(data);

    return 0;
}

注意，以上代码仅供参考，具体实现需要根据实际情况进行修改。例如，需要根据实际需求设置CAN的波特率、ID等参数。