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| 483170 | 1 | /** |
| Q | 2 | ****************************************************************************** |
| 3 | * @file : ModbusRTU.h | |
| 4 | * @brief : Header for ModbusRTU.c file. | |
| 5 | * This file contains the common defines of the ModbusRTU protocol. | |
| 6 | ****************************************************************************** | |
| 7 | */ | |
| 8 | #ifndef __MODBUSRTU_H__ | |
| 9 | #define __MODBUSRTU_H__ | |
| 10 | ||
| 11 | typedef unsigned char uchar; | |
| 12 | typedef unsigned short ushort; | |
| 13 | typedef unsigned char uint8_t; | |
| 14 | typedef unsigned short uint16_t; | |
| 15 | typedef int int32_t; | |
| 16 | ||
| 17 | /* | |
| 18 | enum enResult | |
| 19 | { | |
| 20 | S_OK = 0, | |
| 21 | S_ERR = 1, | |
| 22 | }; | |
| 23 | */ | |
| 24 | enum enModbusRTUCmd | |
| 25 | { | |
| 26 | None =0, | |
| 27 | ReadCoils =1, //读线圈 | |
| 28 | ReadInputs =2, //读离散量输入 | |
| 29 | ReadKeepRegs =3, //读保持寄存器 | |
| 30 | ReadInputRegs =4, //读输入寄存器 | |
| 31 | WriteCoil = 5, //写单个线圈 | |
| 32 | WriteReg =6, //写单个寄存器 | |
| 33 | ReadExptStat = 7, //读取异常状态 | |
| 34 | FetchCommEventCtr =11, //Fetch Comm Event Ctr | |
| 35 | // 12 Fetch Comm Event Log | |
| 36 | ||
| 37 | WriteCoils =15, //写多个线圈 | |
| 38 | WriteRegs = 16, //写多个寄存器 | |
| 39 | //17 Report Slave ID | |
| 40 | //20 Read General Reference | |
| 41 | //21 Write General Reference | |
| 42 | //22 Mask Write 4X Register | |
| 43 | // 23 Read/Write 4X Registers | |
| 44 | //24 Read FIFO Queue | |
| 45 | ||
| 46 | }; | |
| 47 | #pragma anon_unions | |
| 48 | typedef struct tagModBusRTUReqPkg | |
| 49 | { | |
| 50 | uchar Dst; | |
| 51 | uchar Cmd; | |
| 52 | union { | |
| 53 | ushort Addr; | |
| 54 | struct { | |
| 55 | uchar AddrH; | |
| 56 | uchar AddrL; | |
| 57 | }; | |
| 58 | }; | |
| 59 | union | |
| 60 | { | |
| 61 | ushort nCount; | |
| 62 | struct | |
| 63 | { | |
| 64 | uchar CountH; | |
| 65 | uchar CountL; | |
| 66 | }; | |
| 67 | }; | |
| 68 | }stModBusRTUReqPkg, *pModBusRTUReqPkg; | |
| 69 | ||
| 70 | typedef struct tagModBusRTUReplyPkg | |
| 71 | { | |
| 72 | uchar Dst; | |
| 73 | uchar Cmd; | |
| 74 | uchar nByteCount; | |
| 75 | uchar Datas[1]; | |
| 76 | }stModBusRTUReplyPkg, *pModBusRTUReplyPkg; | |
| 77 | ||
| 78 | //int ModBusCRC16(void * pBuf, int len1); | |
| 79 | uint16_t crc16tablefast(const uint8_t *ptr, uint16_t len); | |
| 80 | ||
| 81 | int ModBusSlaveCheckPkg(int nChn, void * pPkg, uint16_t len1); | |
| 82 | ||
| 83 | int ModBusSlaveParsePkg(int nChn, void * pPkg, uint16_t len1); | |
| 84 | ||
| 85 | ||
| 86 | ||
| 87 | #endif /* __MODBUSRTU_H__ */ | |
