#ifndef __MODBUS_RTU_MASTER_H
#define __MODBUS_RTU_MASTER_H

#ifdef __cplusplus
extern "C" {
#endif

#include "stm32f1xx_hal.h"

#define MODBUS_RTU_SLAVE_ADDR          1
#define MODBUS_RTU_TARGET_REG          1160
#define MODBUS_RTU_REG_QTY             1
#define MODBUS_RTU_POLL_INTERVAL       1000
#define MODBUS_RTU_RESP_TIMEOUT        500
#define MODBUS_RTU_INTER_CHAR_TIMEOUT  10
#define MODBUS_RTU_TX_ECHO_MARGIN     10

#define NORIS_FIRE_ALARM(reg)    (((reg) >> 4) & 0x01)
#define NORIS_DOOR_ALARM(reg)    (((reg) >> 5) & 0x01)
#define NORIS_BILGE_ALARM(reg)   (((reg) >> 6) & 0x01)
#define NORIS_GAS_ALARM(reg)     (((reg) >> 7) & 0x01)

#define MODBUS_RTU_MAX_RX_BUF   64

void ModbusRTU_Master_Init(void);
void ModbusRTU_Master_Task(void);
void ModbusRTU_FeedRxByte(uint8_t byte);
uint8_t ModbusRTU_GetAlarmState(void);

#ifdef __cplusplus
}
#endif

#endif