* FreeModbus Libary: LPC214X Port * Copyright (C) 2007 Tiago Prado Lone <tiago@maxwellbohr.com.br> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * File: $Id: portserial.c,v 1.1 2007/04/24 23:15:18 wolti Exp $ */

这段代码是关于FreeModbus库的LPC214X端口实现的版权声明。它在GNU Lesser General Public License下发布，允许用户自由地重新分发和修改这个库。该库没有任何明示或暗示的保证，用户应该自行承担使用风险。如果你使用这个库，你应该已经获得了GNU Lesser General Public License的一份副本，如果没有，你应该联系Free Software Foundation, Inc.。

相关问题

<groupId>com.infiniteautomation</groupId> <artifactId>modbus4j</artifactId> <version>3.0.3</version> </dependency>

This is a Maven dependency for the modbus4j library, version 3.0.3, which is a Java library for the Modbus protocol. It allows Java programs to communicate with Modbus devices over TCP/IP, serial, or RTU connections. The groupId is the organization that publishes the library (in this case, "com.infiniteautomation"), the artifactId is the name of the library ("modbus4j"), and the version is the specific version of the library being used. The dependency tag is used in a Maven project to indicate that the project depends on the specified library.

make: *** No rule to make target 'modbus.h', needed by 'modbus.o'. Stop.

这个错误通常是因为编译器无法找到所需的头文件 modbus.h。您需要确保 modbus.h 头文件在正确的目录中，并且编译器可以找到它。您可以尝试添加 -I 选项到编译命令中，以指定头文件所在的目录。例如，如果 modbus.h 在 /usr/include/modbus 目录中，则可以使用以下命令编译：

gcc -I/usr/include/modbus -o your_program your_program.c modbus.c

请注意，-I 选项后面应该是 modbus.h 所在的目录的路径。