stm32库函数编写的modbus源代码
电梯直达楼主 51黑ren 发表于 2015-12-27 06:10 | 只看该作者 说在前面的话：1. 请勿盲目抄袭。这个协议使用了一个定时器，所以在别处请不要再使用，如果定时器不够用，可以做虚拟定时器。也就是采用一个物理的定时器产生时基。在这个定时器的中断函数中可以给相应的多个定时器自加1.每个虚拟定时器可以用两个变量分别控制打开关闭，和计时。这个已经试验通过了可行的。其实就跟我们使用物理的定时器一样，只不过物理的定时器是用晶振产生时基。2. 这段代码已经调试通过了，也硬件试验过，没有问题，如果你出现问题了，看看你在主函数的的各种基本配置有没有完成。如果要使用06和10号功能，你还需要在主函数中建立一个100个元素的数组，每个元素是16位。3. 写这个文档的时候，这个协议已经是半年前完成的了。所以有些东西记得不是很清楚了，如果说错了，请以实际为准。只是不想让这份代码死在电脑中了，所以才想起来要拿出来分享，支持开源精神。4. 如果实在实在是没有弄出来，请联系我，可以共同交流，我的QQ:810663503 电话：18046771801#include"stm32f10x.h"//modbus用通讯参数u8 Tim_Out;//大于3.5个字符时间，保守取3ms (波特率9600的时候大约2点几毫秒)u8 Rcv_Complete;//一帧是否已经接受完成u8 Send_Complete;//一帧是否已经发送完成u8 Com_busy;//通讯繁忙，表示上一帧还未处理结束u8 Rcv_Buffer[210];//用来存放接收到的完整的一帧数据（第一个字节用来存放接收到的有效字节数，也就是数组中的有效字节数） u8 Send_Buffer[210];//用来存放待发送的完整的一帧数据（第一个字节用来存放待发送的有效字节数，也就是数组中的有效字节数）u8 Rcv_Data;//用来存放接收的一个字节u8 Send_Data;//用来存放要发送的一字节u8 Mod_Id;//用来标志作为从站的站号u8 Rcv_Num;//用来表示接收的一帧的有效字节数（从功能码到CRC校验）u8 Send_Num;//用来表示待发送的一帧的字节数u8 *PointToRcvBuf;//用来指向接收的数据缓存u8 *PointToSendBuf;//用来指向带发送的数据缓存u8 Comu_Busy;//用来表示能否接收下一帧数据u8 HaveMes;extern u16 HoldReg[100];//CRC校验查表用参数static u8 auchCRCHi[] = {0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40} ;static u8 auchCRCLo[] = {0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06,0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD,0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09,0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A,0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4,0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3,0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3,0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4,0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A,0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29,0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED,0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26,0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60,0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67,0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F,0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68,0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E,0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5,0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71,0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92,0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C,0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B,0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B,0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C,0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42,0x43,0x83,0x41,0x81,0x80,0x40} ;//声明modbus的函数void ModInit(u8 Id);//用于Modbus初始化，参数Id为站号（1-255）void ModRcv(void);//用于modbus信息接收void ModSend(void);//用于modbus信息接收void MessageHandle(u8 *pointer_in,u8 *pointer_out);//处理收到的信息帧void ReadOutputBit(u8 *pointer_1,u8 *pointer_2);//读线圈void ReadInputBit(u8 *pointer_1,u8 *pointer_2);//读输 |
