can_handler.c

基于FREESCALE单片机9S08DZ60的CAN的应用层源代码.开发环境为CODEWARRIOR FOR HC08

/*******************************************************************************/
/*
Copyright (c) 2008 Freescale Semiconductor
\file       CAN_handler.c
\brief      CAN messages handling
\author     Freescale Semiconductor
\author     B05114
\version    0.1
\date       January/2008
*/
/*******************************************************************************/

/* MSCAN definitions */
#include "MSCAN.h"

/* Definitions and function prototypes for CAN messages handling */
#include "CAN_handler.h"

/* Error flag for CAN transmission*/
UINT8 CAN_Flag = NO_ERR;

/* Transmission buffer */
UINT8 TxBuffer[] = {0x10,0x20,0x30,0x40};

/* Reception array */
UINT8 RxData[8];    

/*******************************************************************************/
/*
* \brief    Send CAN message
* \author   B05114
* \param    void
* \return   void
*/
void Send_CAN_Msg(void)
{   
    /* Send CAN message */          
    CAN_Flag = MSCAN_SendFrame(STD_ID,0x00,sizeof(TxBuffer),TxBuffer); 
    
    if (!CAN_Flag)     LED1 ^= 1;   /* Toggle indicator */                            		                 
}		


/*******************************************************************************/
/**
* \brief    Read CAN reception buffer
* \author   B05114
* \param    void
* \return   void
*/
void Read_CAN_Buffer(void)
{
    if (RxData[0])  LED2 ^= 1;  /* Toggle indicator if message received*/          
    
    RxData[0] = 0;         
}

/*******************************************************************************/		

/*******************************************************************************/
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/*******************************************************************************/