基于CAN总线远距离水位监控系统.doc

螄/*螁描述:AN工作方式芁*/芇#include<>螅#include<>袀#include<>蚀#include<>肇#include<.h>薃#defineucharunsignedchar节#defineuintunsignedint肀sbitCS7221=P1^1; //7221的片选螈sbitDIN7221=P1^0; //7221的数据端蚄sbitCLK7221=P1^2; //7221的时钟端莀sbitwr_0804=P3^7; //0804读端葿sbitrd_0804=P3^6; //0804写端蒈sbitintr_0804=P2^2; //0804中断端蚅sbitcs_0804=P2^1; //0804片选端螃uchartemp,c[4]; //温度暂存罿ucharDATA_BUF[6]; //发送数据暂存艿/************************************************************************蒃*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*袁*应根据自己的实际电路来进行调整*莈************************************************************************/螅#define SJA_Adr 0xfe00 //定义sja1000的片选基址薄//计算SJA1000在电路中的实际地址:基址+内部寄存器地址羀/************************************************************************螇*以下的定义为SJA1000的内部寄存器的地址,不可修改*蒅*各寄存器的具体功能清参阅sja1000的数据手册*薆************************************************************************/莂#define REG_CONTROL SJA_Adr+0x00 //内部控制寄存器蒁#define MAND SJA_Adr+0x01 //命令寄存器膆#define REG_STATUS SJA_Adr+0x02 //状态寄存器莃#define REG_INTERRUPT SJA_Adr+0x03 //中断寄存器蒀#define REG_ACR SJA_Adr+0x04 //验收代码寄存器袀#define REG_AMR SJA_Adr+0x05 //验收屏蔽寄存器羆#define REG_BTR0 SJA_Adr+0x06 //总线定时寄存器0蒄#define REG_BTR1 SJA_Adr+0x07 //总线定时寄存器1螃#define REG_OCR SJA_Adr+0x08 //输出控制寄存器荿#define REG_TEST SJA_Adr+0x09 //测试寄存器蚆//以下为发送缓冲区寄存器定义薆#define REG_TxBuf1 SJA_Adr+0x0A //发送缓冲区1袁#define REG_TxBuf2 SJA_Adr+0x0B //发送缓冲区2蝿#define REG_TxBuf3 SJA_Adr+0x0C //发送缓冲区3蒇#define REG_TxBuf4 SJA_Adr+0x0D //发送缓冲区4莃#define REG_TxBuf5 SJA_Adr+0x0E //发送缓冲区5芃#define REG_TxBuf6 SJA_Adr+0x0F //发送缓冲区6膈#define REG_TxBuf7 SJA_Adr+0x10 //发送缓冲区7***#define REG_TxBuf8 SJA_Adr+0x11 //发送缓冲区8莄#define REG_TxBuf9 SJA_Adr+0x12 //发送缓冲区9莂#define REG_TxBuf10 SJA_Adr+0x13 //发送缓冲区10蚈//以下为接收缓冲区寄存器定义羈#define REG_RxBuf1 SJA_Adr+0x14 //接收缓冲区1蒆#define REG_RxBuf2 SJA_Adr+0x15 //接收缓冲区2蒀#define REG_RxBuf3 SJA_Adr+0x16 //接收缓冲区3芁#define REG_RxBuf4 SJA_Adr+0x17 //接收缓冲区4蚈#define REG_RxBuf5 SJA_Adr+0x18 //接收缓冲区5芃#define REG_RxBuf6 SJA_Adr+0x19 //接收缓冲区6袃#define REG_RxBuf7 SJA_Adr+0x