37 lines
752 B
C
37 lines
752 B
C
#ifndef _MODBUS_REG_H
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#define _MODBUS_REG_H
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#include <stdint.h>
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#define MODBUS_REG_DEFAULT_VAL 0xFFFFFFFF
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#define RW_REGISTERS_MAXNUM 125
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#define MODBUS_REG_BLOCK_NUM 1
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typedef struct {
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uint8_t block_id;
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uint32_t address;
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uint16_t size;
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} ModbusRegDataBlock_t;
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typedef enum {
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RW_OPERATION_READ,
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RW_OPERATION_WRITE
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} ModbusRegOp_t;
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typedef struct {
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uint8_t slaveId; /* 从机地址 */
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ModbusRegOp_t operation; /* 操作类型 */
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uint16_t startAddr; /* 起始地址 */
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uint8_t num; /* 寄存器个数 */
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uint16_t registers[RW_REGISTERS_MAXNUM]; /* 寄存器数据 */
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}ModbusRegRwData_t;
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/* public funtion prototype. */
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uint8_t modbus_reg_proxy(ModbusRegRwData_t * rw_data);
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#endif
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