35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
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#ifndef __MODBUS_M_H__
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#define __MODBUS_M_H__
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#include "modbus_def.h"
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//----------------------------------------------------------------------------------------------
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//----------------------------------------------------------------------------------------------
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//----------------------------------------------------------------------------------------------
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// 功能：初始化 modbus 通讯
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void InitModbus_m(int midx, int usart, BAUD_TypeDef baud, char dat, char parity, char stop,char mode);
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int ModbusTx(int midx, u8 index, u8 cmd, u16 addr, u16 * pData, u16 len, int steps); // 功能:发送一条MODBUS协议的命令
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int ModbusRx(int midx, u8 index, u8 cmd, u16 addr, u16 * pData, u16 len, int steps); // 功能:接收一条MODBUS协议的应答
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int ModbusComm16(int midx, u8 index, u8 cmd, u16 addr, u16 wrDat, u16 * pData); // 功能:16位数据读写
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int ModbusComm32(int midx, u8 index, u8 cmd, u16 addr, u32 wrDat, u32 * pData); // 功能:32位数据读写
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int ModbusCommMulti(int midx, u8 index, u8 cmd, u16 addr, u16 * pWrDat, u8 wlen, u16 * pRdDat, u8 rlen);
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//----------------------------------------------------------------------------------------------
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void InitRs485Ctrl(int rsvtimout);
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void RegRsCmdProc(Resv485ExProc proc);
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int AddRs485Cmd(Rs485Cmd * pCmd);
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int GetRs485CmdBufLen(void);
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int Rs485Task(void);
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#endif
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