文档介绍：/*描述:AN工作方式*/#include<>#include<>#include<>#include<>#include<.h>#defineucharunsignedchar#defineuintunsignedintsbitCS7221=P1^1; //7221的片选sbitDIN7221=P1^0; //7221的数据端sbitCLK7221=P1^2; //7221的时钟端sbitwr_0804=P3^7; //0804读端sbitrd_0804=P3^6; //0804写端sbitintr_0804=P2^2; //0804中断端sbitcs_0804=P2^1; //0804片选端uchartemp,c[4]; //温度暂存ucharDATA_BUF[6]; //发送数据暂存/*************************************************************************SJA1000与微处理器的接口是以外部存储器的方式,所以以下的基址定义,用户**应根据自己的实际电路来进行调整*************************************************************************/#define SJA_Adr 0xfe00 //定义sja1000的片选基址//计算SJA1000在电路中的实际地址:基址+部寄存器地址/*************************************************************************以下的定义为SJA1000的部寄存器的地址,不可修改**各寄存器的具体功能清参阅sja1000的数据手册*************************************************************************/#define REG_CONTROL SJA_Adr+0x00 //部控制寄存器#define MAND SJA_Adr+0x01 //命令寄存器#define REG_STATUS SJA_Adr+0x02 //状态寄存器#define REG_INTERRUPT SJA_Adr+0x03 //中断寄存器#define REG_ACR SJA_Adr+0x04 //验收代码寄存器#define REG_AMR SJA_Adr+0x05 //验收屏蔽寄存器#define REG_BTR0 SJA_Adr+0x06 //总线定时寄存器0#define REG_BTR1 SJA_Adr+0x07 //总线定时寄存器1#define REG_OCR SJA_Adr+0x08 //输出控制寄存器#define REG_TEST SJA_Adr+0x09 //测试寄存器//以下为发送缓冲区寄存器定义#define REG_TxBuf1 SJA_Adr+0x0A //发送缓冲区1#define REG_TxBuf2 SJA_Adr+0x0B //发送缓冲区2#define REG_TxBuf3 SJA_Adr+0x0C //发送缓冲区3#define REG_TxBuf4 SJA_Adr+0x0D //发送缓冲区4#define REG_TxBuf5 SJA_Adr+0x0E //发送缓冲区5#define REG_TxBuf6 SJA_Adr+0x0F //发送缓冲区6#define REG_TxBuf7 SJA_Adr+0x10 //发送缓冲区7#define REG_TxBuf8 SJA_Adr+0x11 //发送缓冲区8#define REG_TxBuf9 SJA_Adr+0x12 //发送缓冲区9#define REG_TxBuf10 SJA_Adr+0x13 //发送缓冲区10//以下为接收缓冲区寄存器定义#define REG_RxBuf1 SJA_Adr+0x14 //接收缓冲区1#define REG_RxBuf2 SJA_Adr+0x15 //接收缓冲区2#define REG_RxBuf3 SJA_Adr+0x16 //接收缓冲区3#define REG_RxBuf4 SJA_Adr+0x17 //接收缓冲区4#define REG_RxBuf5 SJA_Adr+0x18 //接收缓冲区5#define REG_RxBuf6 SJA_Adr+0x19 //接收缓冲区6#define REG_RxBuf7 SJA_Adr+0x1A //接收缓冲区7#define REG_RxBuf8 SJA_Adr+0x1B //接收缓冲区8#define RE