ds2wdlg.cpp

lpt to i2c converter source code

	int dc = 0;
	char buf[80];
	m_EDIT_ADDR.GetWindowText(buf,3);
	
	for(int count=0; count <=80; count++)
	{
		if((buf[count]>=48) && (buf[count]<=57))
			data[dc] = (buf[count] - 48)*16;
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] = (buf[count]-55)*16;
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] = (buf[count]-87)*16;
		else if(buf[count] == 0)
		{
			bytecount = dc;
			break;
		}
		else
		{
			error = true;
			break;
		}
		count++;
		if(buf[count]>=48 && buf[count]<=57)
			data[dc] += (buf[count] - 48);
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] += (buf[count]-55);
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] += (buf[count]-87);
		else
		{
			error = true;
			break;
		}
		dc++;
	}
	if(error == true)
		{
			MessageBox("Address Invalid");
		}
	else
	{
		for(int count = 0; count < bytecount; count++)
		{
			if(data[count]% 2 == 0)
			{
				success = Pic.WriteSlave2W(data[count]);
				if (success == false)
				{
					m_EDIT_STATUS.SetWindowText("Write Address Failed");
					MessageBox("Data TX Failed", "Error");
				}
				else
					m_EDIT_STATUS.SetWindowText("Write Address");
			}
			else
				MessageBox("Write Addresses Must Be Even Numbers", "Address Error");
		}
	}
}	

void CDS2WDlg::OnWbyte1() 
{	// writes the bytes out that are lised in the Wbyte1 edit box
	CWaitCursor wait;   // Scope of Wait Cursor Entire Function
	bool success = false, error = false;
	UCHAR data[8] = "GHIJKLM";
	UCHAR bytecount = 0;
	int dc = 0;
	char buf[80];
	m_EDIT_WBYTE1.GetWindowText(buf,17);
	
	for(int count=0; count <=80; count++)
	{
		if((buf[count]>=48) && (buf[count]<=57))
			data[dc] = (buf[count] - 48)*16;
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] = (buf[count]-55)*16;
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] = (buf[count]-87)*16;
		else if(buf[count] == 0)
		{
			bytecount = dc;
			break;
		}
		else
		{
			error = true;
			break;
		}
		count++;
		if(buf[count]>=48 && buf[count]<=57)
			data[dc] += (buf[count] - 48);
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] += (buf[count]-55);
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] += (buf[count]-87);
		else
		{
			error = true;
			break;
		}
		dc++;
	}
	if(error == true)
		{
			MessageBox("Write Data Invalid");
		}
	else
	{
		for(int count = 0; count < bytecount; count++)
		{
			success = Pic.WriteSlave2W(data[count]);
			if (success == false)
			{
				m_EDIT_STATUS.SetWindowText("Write Data Failed");
				MessageBox("Data TX Failed", "Error");
			}
			else
				m_EDIT_STATUS.SetWindowText("Write Data");
		}
	}
}

void CDS2WDlg::OnWbyte2() 
{	// writes the bytes listed in wbyte2 edit box.
	CWaitCursor wait;   // Scope of Wait Cursor Entire Function
	bool success = false, error = false;
	UCHAR data[8] = "GHIJKLM";
	UCHAR bytecount = 0;
	int dc = 0;
	char buf[80];
	m_EDIT_WBYTE2.GetWindowText(buf,17);
	
	for(int count=0; count <=80; count++)
	{
		if((buf[count]>=48) && (buf[count]<=57))
			data[dc] = (buf[count] - 48)*16;
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] = (buf[count]-55)*16;
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] = (buf[count]-87)*16;
		else if(buf[count] == 0)
		{
			bytecount = dc;
			break;
		}
		else
		{
			error = true;
			break;
		}
		count++;
		if(buf[count]>=48 && buf[count]<=57)
			data[dc] += (buf[count] - 48);
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] += (buf[count]-55);
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] += (buf[count]-87);
		else
		{
			error = true;
			break;
		}
		dc++;
	}
	if(error == true)
		{
			MessageBox("Write Data Invalid");
		}
	else
	{
		for(int count = 0; count < bytecount; count++)
		{
			success = Pic.WriteSlave2W(data[count]);
			if (success == false)
			{
				m_EDIT_STATUS.SetWindowText("Write Data Failed");
				MessageBox("Data TX Failed", "Error");
			}
			else
				m_EDIT_STATUS.SetWindowText("Write Data");
		}
	}

}

void CDS2WDlg::OnCancel() 
{	// exits program

	CDialog::OnCancel();	
}

void CDS2WDlg::OnStart()
{	// performs a 2-wire start
	CWaitCursor wait;   // Scope of Wait Cursor Entire Function
	bool success = false;
	success = Pic.Start2W();
	if (success == false)
	{
		m_EDIT_STATUS.SetWindowText("Start Failed");
		MessageBox("Start Failed", "Error");
	}
	else
		m_EDIT_STATUS.SetWindowText("Start");
}

void CDS2WDlg::OnStop() 
{	// performs a 2-wire stop
	CWaitCursor wait;   // Scope of Wait Cursor Entire Function
	bool success = false;
	bool state = true;
	success = Pic.Stop2W();
	if (success == false)
	{
		m_EDIT_STATUS.SetWindowText("Stop Failed");
		MessageBox("Stop Failed", "Error");
	}
	else
		m_EDIT_STATUS.SetWindowText("Stop");
}


void CDS2WDlg::OnRaddr() 
{	// writes the 2-wire read address ADDR edit box + 1
	CWaitCursor wait;   // Scope of Wait Cursor Entire Function
	bool success = false, error = false;
	UCHAR data[8] = "GHIJKLM";
	UCHAR bytecount = 0;
	int dc = 0;
	char buf[80];
	m_EDIT_ADDR.GetWindowText(buf,3);
	
	for(int count=0; count <=80; count++)
	{
		if((buf[count]>=48) && (buf[count]<=57))
			data[dc] = (buf[count] - 48)*16;
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] = (buf[count]-55)*16;
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] = (buf[count]-87)*16;
		else if(buf[count] == 0)
		{
			bytecount = dc;
			break;
		}
		else
		{
			error = true;
			break;
		}
		count++;
		if(buf[count]>=48 && buf[count]<=57)
			data[dc] += (buf[count] - 48);
		else if(buf[count]>=65 && buf[count]<=70)
			data[dc] += (buf[count]-55);
		else if(buf[count]>=97 && buf[count]<=102)
			data[dc] += (buf[count]-87);
		else
		{
			error = true;
			break;
		}
		dc++;
	}
	if(error == true)
		{
			MessageBox("Address Invalid");
		}
	else
	{
		for(int count = 0; count < bytecount; count++)
		{
			if(data[count] % 2 == 0)
			{
				success = Pic.WriteSlave2W(data[count]+1);
				if (success == false)
				{
					m_EDIT_STATUS.SetWindowText("Read Address Failed");
					MessageBox("Data TX Failed", "Error");
				}
				else
				{
					m_EDIT_STATUS.SetWindowText("Read Address");
				}
			}
			else
				MessageBox("Write Addresses Must Be Even Numbers", "Address Error");
		}
	}
}

void CDS2WDlg::OnFindAddress() 
{	// Finds all responding 2-wire address, sets read/write address to last device found
	CWaitCursor wait;  // provide wait cursor for this function, scope is entire function
	bool success;
	CString Addresses = "The Following Addresses Were Found: ";
	char temp[10];
	UCHAR count = 0x00;
	while(1)
	{
		Pic.Start2W();
		success = Pic.WriteSlave2W(count);
		if(success)
		{
			_itoa(count,temp,16);
			if(temp[1]==0)
			{
				temp[2] = 0;
				temp[1] = temp[0];
				temp[0] = '0';
			}

			m_EDIT_ADDR.SetWindowText(temp);
			Addresses = Addresses + temp;
			Addresses = Addresses + "h ";

		}
		Pic.Stop2W();
		if(count ==0xFE)
			break;
		else count+=2;
	}

	if(Addresses  == "The Following Addresses Were Found: ")
		Addresses = "No Addresses Found";
	m_EDIT_STATUS.SetWindowText(Addresses);
}

void CDS2WDlg::OnResetBus() 
{	// attempts to resets the 2-wire bus in the event 
	//  that devices on the bus become confused.

	CWaitCursor wait;  // provide wait cursor for this function, scope is entire function
	int  success = 0;

	success += Pic.ToggleSCL9x();
	success += Pic.Stop2W();

	if (success == 2)
		m_EDIT_STATUS.SetWindowText("2-Wire Bus Reset");
	else
		MessageBox("2-Wire bus could not be reset","ERROR");

}