📄 rs232.c

📁 一个基于C51开发的计价秤
💻 C
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/*********************************************/
// File Name: rs232.c
// Author: henny
// Date: 2006/3/1
/*********************************************/
#include <SST89x5xxRD2.h>
#include "Public.h"

extern WORD PLU_no;
extern DWORD Unit_Price;
extern WORD Weight;
extern WORD Quantity;
extern DWORD Total_Price;
extern TIME time;
extern DATE date;
extern WORD Sold_Quantity;
extern DWORD Sum_Price;
extern BYTE Record_buf[RECORD_LEN];
extern BYTE PLU_buf[PLU_LEN];

extern VOID Record_Load(WORD temp);

VOID RS232_Init()
{
	SCON=0x42;
	RCAP2H=V_TH2;
	TH2=V_TH2;
	RCAP2L=V_TL2;
	TL2=V_TL2;
	TCLK=1;
	RCLK=1;
	TR2=1;
	while(!RXD);
	REN=1;
}

VOID Put_Byte(BYTE b)
{
	while(!TI);
	TI=0;
	SBUF=b;
}

BYTE Get_Byte()
{
	BYTE b;
	while(!RI);
	b=SBUF;
	RI=0;
	return(b);
}

VOID Print_PLU_no(WORD temp)
{
	INT8 data i,adr=0;
	BYTE temp_buf[4];
	DWORD divisor=1000;
	for(i=3;i>=0;i--)
	{
		temp_buf[i]=temp/divisor;
		temp=temp-temp_buf[i]*divisor;
		divisor=divisor/10;
	}
	for(i=1;i>=0;i--)
	{
		Record_buf[PLU_no_Save_address+adr]=temp_buf[i*2+1];
		Record_buf[PLU_no_Save_address+adr]=Record_buf[PLU_no_Save_address+adr]<<4;
		Record_buf[PLU_no_Save_address+adr]+=temp_buf[i*2];
		Put_Byte(Record_buf[PLU_no_Save_address+adr]);
		adr++;
	}
}

VOID Print_Unit_Price(DWORD temp)
{
	INT8 data i,adr=0;
	BYTE temp_buf[6];
	DWORD divisor=100000;
	for(i=5;i>=0;i--)
	{
		temp_buf[i]=temp/divisor;
		temp=temp-temp_buf[i]*divisor;
		divisor=divisor/10;
	}
	for(i=2;i>=0;i--)
	{
		Record_buf[Unit_Price_Save_address+adr]=temp_buf[i*2+1];
		Record_buf[Unit_Price_Save_address+adr]=Record_buf[Unit_Price_Save_address+adr]<<4;
		Record_buf[Unit_Price_Save_address+adr]+=temp_buf[i*2];
		Put_Byte(Record_buf[Unit_Price_Save_address+adr]);
		adr++;
	}		
}

VOID Print_Weight(DWORD temp)
{
	INT8 data i,adr=0;
	BYTE temp_buf[6];
	DWORD divisor=100000;
	for(i=5;i>=0;i--)
	{
		temp_buf[i]=temp/divisor;
		temp=temp-temp_buf[i]*divisor;
		divisor=divisor/10;
	}
	for(i=2;i>=0;i--)
	{
		Record_buf[Weight_Save_address+adr]=temp_buf[i*2+1];
		Record_buf[Weight_Save_address+adr]=Record_buf[Weight_Save_address+adr]<<4;
		Record_buf[Weight_Save_address+adr]+=temp_buf[i*2];
		Put_Byte(Record_buf[Weight_Save_address+adr]);
		adr++;
	}		
}

VOID Print_Quantity(DWORD temp)
{
	INT8 data i,adr=0;
	BYTE temp_buf[4];
	DWORD divisor=1000;
	for(i=3;i>=0;i--)
	{
		temp_buf[i]=temp/divisor;
		temp=temp-temp_buf[i]*divisor;
		divisor=divisor/10;
	}
	for(i=1;i>=0;i--)
	{
		Record_buf[Quantity_Save_address+adr]=temp_buf[i*2+1];
		Record_buf[Quantity_Save_address+adr]=Record_buf[Quantity_Save_address+adr]<<4;
		Record_buf[Quantity_Save_address+adr]+=temp_buf[i*2];
		Put_Byte(Record_buf[Quantity_Save_address+adr]);
		adr++;
	}
	Record_buf[Quantity+2]=0x00;	
}

VOID Print_Total_Price(DWORD temp)
{
	INT8 data i,adr=0;
	BYTE temp_buf[8];
	DWORD divisor=10000000;
	for(i=7;i>=0;i--)
	{
		temp_buf[i]=temp/divisor;
		temp=temp-temp_buf[i]*divisor;
		divisor=divisor/10;
	}
	for(i=3;i>=0;i--)
	{
		Record_buf[Total_Price_Save_address+adr]=temp_buf[i*2+1];
		Record_buf[Total_Price_Save_address+adr]=Record_buf[Total_Price_Save_address+adr]<<4;
		Record_buf[Total_Price_Save_address+adr]+=temp_buf[i*2];
		Put_Byte(Record_buf[Total_Price_Save_address+adr]);
		adr++;
	}	
}

VOID Print_Date()
{
	INT8 data i;
	BYTE temp_buf[6];
	temp_buf[0]=date.year%10;
	temp_buf[1]=date.year/10;
	temp_buf[2]=date.month%10;
	temp_buf[3]=date.month/10;
	temp_buf[4]=date.day%10;
	temp_buf[5]=date.day/10;
	for(i=0;i<3;i++)
	{
		Record_buf[0]=temp_buf[i*2+1];
		Record_buf[0]=Record_buf[0]<<4;
		Record_buf[0]+=temp_buf[i*2];
		Put_Byte(Record_buf[0]);
	}		
}
VOID Print_Time()
{
	INT8 data i;
	BYTE temp_buf[4];
	temp_buf[0]=time.hour%10;
	temp_buf[1]=time.hour/10;
	temp_buf[2]=time.min%10;
	temp_buf[3]=time.min/10;
	for(i=0;i<2;i++)
	{
		Record_buf[0]=temp_buf[i*2+1];
		Record_buf[0]=Record_buf[0]<<4;
		Record_buf[0]+=temp_buf[i*2];
		Put_Byte(Record_buf[0]);
	}	
}

VOID Print_Sold_Quantity(WORD temp)
{
	INT8 data i;
	BYTE temp_buf[6];
	DWORD divisor=100000;
	for(i=5;i>=0;i--)
	{
		temp_buf[i]=temp/divisor;
		temp=temp-temp_buf[i]*divisor;
		divisor=divisor/10;
	}
	for(i=2;i>=0;i--)
	{
		Record_buf[0]=temp_buf[i*2+1];
		Record_buf[0]=Record_buf[0]<<4;
		Record_buf[0]+=temp_buf[i*2];
		Put_Byte(Record_buf[0]);
	}	
}

VOID Print_Sum_Price(DWORD temp)
{
	INT8 data i;
	BYTE temp_buf[8];
	DWORD divisor=10000000;
	for(i=7;i>=0;i--)
	{
		temp_buf[i]=temp/divisor;
		temp=temp-temp_buf[i]*divisor;
		divisor=divisor/10;
	}
	for(i=3;i>=0;i--)
	{
		Record_buf[0]=temp_buf[i*2+1];
		Record_buf[0]=Record_buf[0]<<4;
		Record_buf[0]+=temp_buf[i*2];
		Put_Byte(Record_buf[0]);
	}	
}

VOID Print_Record(BYTE print_type)
{
	switch(print_type)
	{
	case PW:
		Put_Byte(0xb1);
		Print_PLU_no(PLU_no);
		Put_Byte(0xb2);
		Print_Unit_Price(Unit_Price);
		Put_Byte(0xb3);
		Print_Weight(Weight);
		Put_Byte(0xb4);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0xb5);
		Print_Total_Price(Total_Price);
		break;		
	case PN:
		Put_Byte(0xb1);
		Print_PLU_no(PLU_no);
		Put_Byte(0xb2);
		Print_Unit_Price(Unit_Price);
		Put_Byte(0xb3);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0xb4);
		Print_Quantity(Quantity);
		Put_Byte(0xb5);
		Print_Total_Price(Total_Price);
		break;
	case MW:
		Put_Byte(0xb1);
		Print_PLU_no(0);
		Put_Byte(0xb2);
		Print_Unit_Price(Unit_Price);
		Put_Byte(0xb3);
		Print_Weight(Weight);
		Put_Byte(0xb4);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0xb5);
		Print_Total_Price(Total_Price);
		break;
	case MN:
		Put_Byte(0xb1);
		Print_PLU_no(0);
		Put_Byte(0xb2);
		Print_Unit_Price(Unit_Price);
		Put_Byte(0xb3);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0xb4);
		Print_Quantity(Quantity);
		Put_Byte(0xb5);
		Print_Total_Price(Total_Price);
		break;
	case TOTAL:
		Put_Byte(0xc1);
		Print_Date();
		Put_Byte(0xc2);
		Print_Time();
		Put_Byte(0xc3);
	   	Print_Sold_Quantity(Sold_Quantity);
		Put_Byte(0xc4);
		Print_Sum_Price(Sum_Price);
		break;	
	}
}

VOID Print_Cancel_Record(WORD temp)
{
	Record_Load(temp);
	if(Record_buf[0]==PW||Record_buf[0]==MW)
	{
		Put_Byte(0xa1);
		Put_Byte(Record_buf[PLU_no_Save_address]);
		Put_Byte(Record_buf[PLU_no_Save_address+1]);
		Put_Byte(0xa2);
		Put_Byte(Record_buf[Unit_Price_Save_address]);
		Put_Byte(Record_buf[Unit_Price_Save_address+1]);
		Put_Byte(Record_buf[Unit_Price_Save_address+2]);
		Put_Byte(0xa3);
		Put_Byte(Record_buf[Weight_Save_address]);
		Put_Byte(Record_buf[Weight_Save_address+1]);
		Put_Byte(Record_buf[Weight_Save_address+2]);
		Put_Byte(0xa4);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0xa5);
		Put_Byte(Record_buf[Total_Price_Save_address]);
		Put_Byte(Record_buf[Total_Price_Save_address+1]);
		Put_Byte(Record_buf[Total_Price_Save_address+2]);
		Put_Byte(Record_buf[Total_Price_Save_address+3]);
	}
	else if(Record_buf[0]==PN||Record_buf[0]==MN)
	{
		Put_Byte(0xa1);
		Put_Byte(Record_buf[PLU_no_Save_address]);
		Put_Byte(Record_buf[PLU_no_Save_address+1]);
		Put_Byte(0xa2);
		Put_Byte(Record_buf[Unit_Price_Save_address]);
		Put_Byte(Record_buf[Unit_Price_Save_address+1]);
		Put_Byte(Record_buf[Unit_Price_Save_address+2]);
		Put_Byte(0xa3);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0x00);
		Put_Byte(0xa4);
		Put_Byte(Record_buf[Quantity_Save_address]);
		Put_Byte(Record_buf[Quantity_Save_address+1]);
		Put_Byte(0xa5);
		Put_Byte(Record_buf[Total_Price_Save_address]);
		Put_Byte(Record_buf[Total_Price_Save_address+1]);
		Put_Byte(Record_buf[Total_Price_Save_address+2]);
		Put_Byte(Record_buf[Total_Price_Save_address+3]);
	}
}

BOOL Package_Header_Check()
{
	INT8 data i;
	while(Get_Byte()!=0xbb);		
	for(i=0;i<5;i++)
	{
		if(Get_Byte()!=0xbb)
			return FALSE;	
	}
	return TRUE;	
}

VOID Receive_PLU_Data_from_PC()
{
	while(Get_Byte()!=0xb1);
	PLU_buf[0]=Get_Byte();
	//Put_Byte(PLU_buf[0]);
	PLU_buf[1]=Get_Byte();
	//Put_Byte(PLU_buf[1]);
	while(Get_Byte()!=0xb2);
	PLU_buf[2]=Get_Byte();
	//Put_Byte(PLU_buf[2]);
	PLU_buf[3]=Get_Byte();
	//Put_Byte(PLU_buf[3]);
	PLU_buf[4]=Get_Byte();
	//Put_Byte(PLU_buf[4]);
	PLU_buf[5]=Get_Byte();
	//Put_Byte(PLU_buf[5]);
	PLU_buf[6]=Get_Byte();
	//Put_Byte(PLU_buf[6]);
	PLU_buf[7]=Get_Byte();
	//Put_Byte(PLU_buf[7]);
	PLU_buf[8]=Get_Byte();
	//Put_Byte(PLU_buf[8]);
	PLU_buf[9]=Get_Byte();
	//Put_Byte(PLU_buf[9]);
	PLU_buf[10]=Get_Byte();
	//Put_Byte(PLU_buf[10]);
	PLU_buf[11]=Get_Byte();
	//Put_Byte(PLU_buf[11]);
	PLU_buf[12]=Get_Byte();
	//Put_Byte(PLU_buf[12]);
	PLU_buf[13]=Get_Byte();
	//Put_Byte(PLU_buf[13]);
	PLU_buf[14]=Get_Byte();
	//Put_Byte(PLU_buf[14]);
	PLU_buf[15]=Get_Byte();
	//Put_Byte(PLU_buf[15]);
	PLU_buf[16]=Get_Byte();
	//Put_Byte(PLU_buf[16]);
	PLU_buf[17]=Get_Byte();
	//Put_Byte(PLU_buf[17]);
	while(Get_Byte()!=0xb3);
	PLU_buf[18]=Get_Byte();
	//Put_Byte(PLU_buf[18]);
	PLU_buf[19]=Get_Byte();
	//Put_Byte(PLU_buf[19]);
	PLU_buf[20]=Get_Byte();
	//Put_Byte(PLU_buf[20]);	
}

BOOL Package_EOF_Check()
{
	INT8 data i;
	while(Get_Byte()!=0xcc);
	for(i=0;i<5;i++)
	{
		if(Get_Byte()!=0xcc)
			return FALSE;
	}
	return TRUE;
}
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