collect/Core/Src/pressure.c

#include "pressure.h"
#include "main.h"
#include "usart.h"

Pressure_Inf pressure_inf[SENSOR_DEEP];
uint8_t Pressure_Max = 0;

void Pressure_state(uint16_t CangNum)
{

}

void Pressure_Init(void)
{
	Cang_Inf* pcang = &cang_inf;
	uint8_t i = 0;
	
	pcang->Pressure = Pressure_FST800_801;
	

	for(i = 0;i < pcang->Cang_Num;i++)
	{
		pcang->Pressure_Num[i] = 1;
	}
	
	Pressure_Max = 0;
	
	for(i = 0;i < pcang->Cang_Num;i++)
	 Pressure_Max +=pcang->Pressure_Num[i];
	
	if(Pressure_Max > SENSOR_DEEP){
		Pressure_Max = SENSOR_DEEP;
	}
	
	
}

uint8_t Prase_Pressure(uint8_t* data, Pressure_Tpye type)
{
	uint16_t ModbusCRC;
	uint8_t receive_error = 0;
	uint8_t id = 0;
	
	typedef union{
   float value;
   uint8_t arr[4];
  }Hex_to_float;
	
	static Hex_to_float hex_to_float;
	
	
	ModbusCRC = data[7]<<8;
	ModbusCRC |= data[8];
	
	if(data[1]!=0x03&&data[1]!=0x06)              //校验读写属性
	{
		receive_error = 1;
	}
	else if(data[2] != 0x04)			//校验数据长度
	{
		receive_error = 1;
	}
	else if(ModbusCRC != LIB_CRC_MODBUS(data,7))		//校验CRC
	{
		receive_error = 1;
	}
	
	id = data[0]-PRESSURE_STARTADDR;
	if(id >= SENSOR_DEEP){
		receive_error = 1;
	}
	
	if(receive_error == 0){
		
		pressure_inf[id].ErrorCnt = 0;
		pressure_inf[id].Error = 0;
		
		if(data[1] == 0x03){
			
						hex_to_float.arr[0] = data[6];
					  hex_to_float.arr[1] = data[5];
					  hex_to_float.arr[2] = data[4];
					  hex_to_float.arr[3] = data[3];					
						pressure_inf[id].pressure = hex_to_float.value;
		}
		
		return 0;
	
	}else{
	
		Pressure_Error(data[0]);
		
		return 1;
	}
				
}

void Pressure_Error(uint8_t addr)
{
	uint8_t id =0;
	Cang_Inf* pcang = &cang_inf;
	
	id = addr-PRESSURE_STARTADDR;
	if(id >= SENSOR_DEEP){
		return ;
	}
	
	pressure_inf[id].ErrorCnt++;
	
	if (pressure_inf[id].ErrorCnt > pcang->sensorBusMaxReTry)
	{
		pressure_inf[id].ErrorCnt = pcang->sensorBusMaxReTry + 1;
		pressure_inf[id].Error = 1;
	}
}