39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
#ifndef _MODBUS_H
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#define _MODBUS_H
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// Includes
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#include "modbus_constants.h"
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#include "stdlib.h"
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void Modbus_TCP_Handler(unsigned char*, uint8_t);
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static unsigned char modbus_rx_buf[128];
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#define CRC_COUNT_OFFSET 3
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#define MODBUS_RHR_CMD (unsigned char)0x03
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#define MODBUS_RIR_CMD (unsigned char)0x04
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#define MODBUS_WSR_CMD (unsigned char)0x06
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void modbus_wsr_answer(void);
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void modbus_rhr_answer(void);
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unsigned char modbus_get_poll(void);
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void holding_reg_write(uint16_t, uint16_t);
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void holding_reg_read(uint16_t, uint16_t*);
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void input_reg_write(uint16_t, uint16_t);
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void input_reg_read(uint16_t, uint16_t*);
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uint16_t get_wr_reg_addr(void);
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uint16_t get_wr_reg_val(void);
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unsigned char get_modbus_id(void);
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void set_modbus_id(unsigned char);
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void modbus_connect_callback_send_byte(void (*s)(USART_TypeDef*, unsigned char));
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void modbus_connect_callback_send_buf_tcp(int32_t (*s)(uint8_t, unsigned char*, uint16_t));
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void modbus_connect_callback_rir_poll(void (*s)(void));
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void modbus_connect_callback_rhr_poll(void (*s)(void));
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void modbus_connect_callback_wsr_poll(void (*s)(uint16_t, uint16_t));
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void modbus_poll(void);
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void modbus_reset(void);
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#endif
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