基于CAN总线的远距离水位监控系统.doc

专业专心专注专业资料参考首选/*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*************************************************************************/#defineSJA_Adr0xfe00//定义sja1000的片选基址//计算SJA1000在电路中的实际地址:基址+内部寄存器地址/*************************************************************************以下的定义为SJA1000的内部寄存器的地址,不可修改**各寄存器的具体功能清参阅sja1000的数据手册*************************************************************************/#defineREG_CONTROLSJA_Adr+0x00//内部控制寄存器#MANDSJA_Adr+0x01//命令寄存器#defineREG_STATUSSJA_Adr+0x02//状态寄存器#defineREG_INTERRUPTSJA_Adr+0x03//中断寄存器#defineREG_ACRSJA_Adr+0x04//验收代码寄存器#defineREG_AMRSJA_Adr+0x05//验收屏蔽寄存器#defineREG_BTR0SJA_Adr+0x06//总线定时寄存器0#defineREG_BTR1SJA_Adr+0x07//总线定时寄存器1#defineREG_OCRSJA_Adr+0x08//输出控制寄存器#defineREG_TESTSJA_Adr+0x09//测试寄存器//以下为发送缓冲区寄存器定义#defineREG_TxBuf1SJA_Adr+0x0A//发送缓冲区1#defineREG_TxBuf2SJA_Adr+0x0B//发送缓冲区2#defineREG_TxBuf3SJA_Adr+0x0C//发送缓冲区3#defineREG_TxBuf4SJA_Adr+0x0D//发送缓冲区4专业专心专注专业资料参考首选#defineREG_TxBuf5SJA_Adr+0x0E//发送缓冲区5#defineREG_TxBuf6SJA_Adr+0x0F//发送缓冲区6#defineREG_TxBuf7SJA_Adr+0x10//发送缓冲区7#defineREG_TxBuf8SJA_Adr+0x11//发送缓冲区8#defineREG_TxBuf9SJA_Adr+0x12//发送缓冲区9#defineREG_TxBuf10SJA_Adr+0x13//发送缓冲区10//以下为接收缓冲区寄存器定义#defineREG_RxBuf1SJA_Adr+0x14//接收缓冲区1#defineREG_RxBuf2SJA_Adr+0x15//接收缓冲区2#defineREG_RxBuf3SJA_Adr+0x16//接收缓冲区3#defineREG_RxBuf4SJA_Adr+0x17//接收缓冲区4#defineREG_RxBuf5SJA_Adr+0x18//接收缓冲区5#defineREG_RxBuf6SJA_Adr+0x19//接收缓冲区6#defineREG_RxBuf7SJA_Adr+0x1A//接收缓冲区7#defineREG_RxBuf8SJA_Adr+0x1B//接收缓冲区8#defineREG_RxBuf9SJA_Adr+0x1C//接收缓冲区9#defineREG_RxBuf10SJA_Adr+0x1D//接收缓冲区10/****