实验现象

LIN控制子系统

代码

ASCLIN_LIN_Master.c

/*********************************************************************************************************************/
/*-----------------------------------------------------Includes------------------------------------------------------*/
/*********************************************************************************************************************/
#include "IfxAsclin.h"
#include "IfxAsclin_Lin.h"
#include "ASCLIN_LIN_Master.h"
/*********************************************************************************************************************/
/*------------------------------------------------------Macros-------------------------------------------------------*/
/*********************************************************************************************************************/
#define SERIAL_BAUDRATE     19200                               /* Set the baud rate                                */
#define SIZE                12                                  /* Size of the message                              */
#define ID_BYTE             0x80                                /* Set the LIN ID byte to a random number           */
#define RX_PIN              IfxAsclin1_RXB_P15_5_IN             /* Set RX port pin                                  */
#define TX_PIN              IfxAsclin1_TX_P15_5_OUT             /* Set TX port pin                                  */
/*********************************************************************************************************************/
/*-------------------------------------------------Global variables--------------------------------------------------*/
/*********************************************************************************************************************/
static IfxAsclin_Lin g_linMaster;
/*********************************************************************************************************************/
/*----------------------------------------------Function Implementations---------------------------------------------*/
/*********************************************************************************************************************/
/* This function initializes the ASCLIN LIN module in master mode */
void init_ASCLIN_LIN_master(void)
{
    /* Initialize one instance of IfxAsclin_Lin_Config with default values */
    IfxAsclin_Lin_Config linMasterConfig;
    IfxAsclin_Lin_initModuleConfig(&linMasterConfig, &MODULE_ASCLIN1);
    linMasterConfig.linMode = IfxAsclin_LinMode_master;         /* Set the LIN mode of operation                    */
    linMasterConfig.brg.baudrate = SERIAL_BAUDRATE;             /* Set the desired baud rate                        */
    const IfxAsclin_Lin_Pins pins =
    {
        &RX_PIN,   IfxPort_InputMode_pullUp,                    /* RX port pin                                      */
        &TX_PIN,   IfxPort_OutputMode_pushPull,                 /* TX port pin                                      */
        IfxPort_PadDriver_cmosAutomotiveSpeed1
    };
    linMasterConfig.pins = &pins;                               /* Port pins configuration                          */
    /* Initialize module */
    IfxAsclin_Lin_initModule(&g_linMaster, &linMasterConfig);
}
/* This function sends the string "Hello World!" */
void send_ASCLIN_LIN_message(void)
{
    uint8 txId = ID_BYTE;                                       /* ID which gets transmitted within the header      */
    uint8 txData[SIZE] = {"Hello World!"};                      /* Frame to send                                    */
    /* After the transmission of the LIN header by the master, the master itself starts the transmission
     * of the message.
     */
    IfxAsclin_Lin_sendHeader(&g_linMaster, &txId);              /* Send LIN header                                  */
    if(g_linMaster.acknowledgmentFlags.txHeaderEnd == 1)        /* If the LIN header has been transmitted           */
    {
        IfxAsclin_Lin_sendResponse(&g_linMaster, txData, SIZE); /* Send message                                     */
    }
}