MODBUS (51实现) +proteus仿真+modbus调试工具

#include"include/main.h" #include"include/uart.h" #include"include/modbus.h" code 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 } ; /* CRC低位字节值表*/ code 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 }; #define LACAL_ADRR 0x01 extern UART_TRAN uart_tran_data; extern UART_RECV uart_recv_data; U8 Coil_Status_TBL[5] = {0x55,0x55,0x55,0x55,0x55}; //40个线圈 ，分为5组 U8 Switch_Status_TBL[5] = {0x00,0x00,0x00,0x00,0x00};//40个离散开关，分为5组 U8 Coil_Output_TBL[5] = {0x00,0x00,0x00,0x00,0x00}; U16 Crc16(U8 *buf, U16 DataLen) { U8 uchCRCHi = 0xFF ; /* 高CRC字节初始化 */ U8 uchCRCLo = 0xFF ; /* 低CRC 字节初始化 */ U16 uIndex ; /* CRC循环中的索引 */ while (DataLen--) /* 传输消息缓冲区 */ { uIndex = uchCRCHi ^ *buf++ ; /* 计算CRC */ uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex] ; uchCRCLo = auchCRCLo[uIndex] ; } return (uchCRCHi << 8 | uchCRCLo) ; } bit frame_Parse() { CHAR_CONVERT Crc; U8 Lacal_Adrr; U8 Fun_Code; Crc.item = Make_word(uart_recv_data.Recv_buffer[uart_recv_data.In_waiting_index_G-2],\ uart_recv_data.Recv_buffer[uart_recv_data.In_waiting_index_G-1]); if(Crc.item != Crc16(uart_recv_data.Recv_buffer,uart_recv_data.In_waiting_index_G-2)) { return FALSE; } Lacal_Adrr = uart_recv_data.Recv_buffer[0]; Fun_Code = uart_recv_data.Recv_buffer[1]; if(Lacal_Adrr != LACAL_ADRR&&Lacal_Adrr!=0) { return FALSE; } if(Lacal_Adrr == LACAL_ADRR) { Write_Char_To_Buffer(LACAL_ADRR); switch(Fun_Code) { case 1: { Read_coil_status(); } break; case 2: { Read_switch_status(); } break; case 3: { Read_hold_register(); } break; case 4: { Read_input_register(); } break; case 5: { force_set_coil(); } break; case 6: { pre_single_register(); } break; case 15: { Set_multi_coils(); } break; case 16: { Pre_set_multi_register(); } break; default: break; } } } U16 Make_word(U8 a,U8 b) { CHAR_CONVERT temp; temp.convert.high=a; temp.convert.low=b; return (temp.item); } //////////////////////////////////////////////////////////////////////////////////// void read_coil_status_value() { U8 value; P2 = 0xff; value = P2; Coil_Status_TBL[0] = value; } void Read_coil_status() { U16 address; U8 count; U8 coil_status; U16 temp_crc; U8 i; Write_Char_To_Buffer(uart_recv_data.Recv_buffer[1]); address = (uart_recv_data.Recv_buffer[2]<<8)+uart_recv_data.Recv_buffer[3]; count = (uart_recv_data.Recv_buffer[4]<<8)+uart_recv_data.Recv_buffer[5]; if(count%8 != 0) { count = count/8 + 1; } else { count = count/8; } Write_Char_To_Buffer(count); read_coil_status_value(); for(i = 0;i < count; i++) { coil_status = Coil_Status_TBL[address + i]; Write_Char_To_Buffer(coil_status); } temp_crc = Crc16(uart_tran_data.Tran_buffer,uart_tran_data.Out_waiting_index_G); Write_Char_To_Buffer((U8)(temp_crc>>8)); Write_Char_To_Buffer((U8)(temp_crc)); } ///////////////////////////////////////////////////////////////////////////////// void read_switch_status_value() { U8 value; P2 = 0xff; value = P1; Switch_Status_TBL[0] = value; } void Read_switch_status() { U16 address; U8 count; U8 switch_status; U16 temp_crc; U8 i; Write_Char_To_Buffer(uart_recv_data.Recv_buffer[1]); address = (uart_recv_data.Recv_buffer[2]<<8)+uart_recv_data.Recv_buffer[3]; count = (uart_recv_data.Recv_buffer[4]<<8)+uart_recv_data.Recv_buffer[5]; if(count%8 != 0) { count = count/8 + 1; } else { count = count/8; } Write_Char_To_Buffer(count); read_switch_status_value(); for(i = 0;i < count; i++) { switch_status = Switch_Status_TBL[address + i]; Write_Char_To_Buffer(switch_status); } temp_crc = Crc16(uart_tran_data.Tran_buffer,uart_tran_data.Out_waiting_index_G); Write_Char_To_Buffer((U8)(temp_crc>>8)); Write_Char_To_Buffer((U8)(temp_crc)); } ////////////////////////////////////////////////////////////////////////////////////// void Read_hold_register() { } ////////////////////////////////////////////////////////////////////////////////////// void Read_input_register() { } ////////////////////////////////////////////////////////////////////////////////////// void force_set_coil() { } ////////////////////////////////////////////////////////////////////////////////////// void pre_single_register() { } ////////////////////////////////////////////////////////////////////////////////////// void Set_coil_output_value() { //根据具体应用添加代码 P0 = Coil_Output_TBL[0]; }