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Description: 、 先在microchip网站上找到00738.zip，这个包中有
can18xx8.h，can18xx8.c，将其复制到一个你要编写程度的子目录中，例如C:\testcan下，这个时候这个东东是不能直接用的。
2、 下载一个MPLAB 7.10，直接安装(要求直接下载)
3、 再下载一个PICC18 (HI-TECH的)，要正版哦(支持正版，买不起的想其它办法吧)
4、在你的头文件上写上如下的样式：
#include "stdio.h"
#include "can18xx8.h"
#include "pic18fxx8.h"//可能是“pic.h”不太好包含，因此常会报错，直接包含克服之
5、然后设置好PICC和MPLAB，如果MPLAB上没有PICC18，则到PICC的网上下一个安装软件，可以直接运行安装就有了。
6、按照工程的基本要求把你的源代码、添加上两个库(不加也可以)
然后就可以写如下代码了：下面是一个完整版，可以直接使用microchip的库函数，本程序只是仿真调试过，未在多个芯片通信过，仍在制作中。
#include "stdio.h"
#include "can18xx8.h"
#include "pic18fxx8.h"
unsigned long NewMessage;
BYTE NewMessageData[8];
BYTE MessageData[8];
BYTE NewMessageLen;
enum CAN_RX_MSG_FLAGS NewMessageFlags=1;
BYTE RxFilterMatch;
void main()
{
//int a;
//int b;
CANInitialize(1, 5, 7, 6, 2, CAN_CONFIG_VALID_XTD_MSG);
while(1)
{
// Application specific logic here
// Check for CAN message
if ( CANIsRxReady() )
{
CANReceiveMessage(&NewMessage,NewMessageData,&NewMessageLen,&NewMessageFlags);
if ( NewMessageFlags & CAN_RX_OVERFLOW )
{
// Rx overflow occurred; handle it
}
if ( NewMessageFlags & CAN_RX_INVALID_MSG )
{
// Invalid message received; handle it
}
if ( NewMessageFlags & CAN_RX_XTD_FRAME )
{
// Extended Identifier received; handle it
}
else
{
// Standard Identifier received.
}
if ( NewMessageFlags & CAN_RX_RTR_FRAME )
{
// RTR frame received
}
else
{
// Regular frame received.
}
// Extract receiver filter match, if it is to be used
RxFilterMatch = NewMessageFlags & CAN_RX_FILTER_BITS;
}
// Process received message
// Transmit a message due to previously received message or
// due to application logic itself.
if ( CANIsTxReady() )
{
MessageData[0] = 0x01;
CANSendMessage( 0x02,MessageData,1,CAN_TX_PRIORITY_0
&CAN_TX_STD_FRAME &
CAN_TX_NO_RTR_FRAME);
}
// Other application specific logic
} // Do this forever
// End of program
}
以上均是参考文档并进行了修正，由于中间总是报错，为了大家让CAN更容易，谢谢大家!
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