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1.0 2013-01-30
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README.txt 2013-01-30 2.2 kB
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    <Rs485 Dinamic Library>
    Copyright (C) <2013>  <Ernesto Gigliotti>

    ernestogigliotti@gmail.com

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

//_________________________________________________________________________


Rs485 Dinamic Library
______________________

Rs485 Dinamic Library allow to use a PC serial port like a RS485 port. It is based on Rs232 library for Windows/Linux created by Teunis van Beelen. Schematic for RS485 converter is provided.

This library is divided in two parts
	
	1 - C library compiled like shared library ( "so" or "dll" extension)
	2 - C# and Python wrapper library that uses dinamic C library.

For Windows
___________
C library is compiled with MinGW. Eclipse project is provided. Only is posted 64bit dll library, you can compile over 32bit for 32bit support.

The demo project is a Visual Studio 2008 C# project and it has 2 classes : the Program class, where main method is, and Rs485 class that is a wrapper for the dll library.


For Linux
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C library is compiled with GCC. Netbeans project is provided. Only is posted 32bit shared library, you can compile over 64bit for 64bit support.
The demo project is a Python project and it has 2 files : the program main.py and the class Rs485.py that is a wrapper for the shared library.


Technical notes
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RS485 driver can be : SN75176 or ST485
RTS COM pin is used for TX/RX control on RS485 Bus.
Diode D2 allows to the PC receive the transmited packet, that way the library ensures the packet is all transmited before change RST state.
Source: README.txt, updated 2013-01-30