modbus rtu 通讯 使用spcomm控件

红外接口串口仿真-Simulation Interface

This is the free RTOS on PIC24.

USART的驱动程序，在C++编译环境下，进攻学习参考-USART the driver, in the C compiler environment, learning offensive reference

是用该语言编写的关于串口通信的源代码。欢迎各位下载-is the language used on serial communication source. Welcome to download

关于RS-232 RS-485串口通信的详细资料-On the RS-232 RS-485 serial communication of detailed information

使用RS232串口2，通过Copley电机控制卡控制电机运转的VB程序。文件夹中包含有程序开发手册。 Using RS232 2 port, a VB program is developed for Copley motor control card, by which motors can move precisely. A handbook for program develpoment is involved in the rar file.-The use of RS232 serial port 2, through Copley cards to control motor control motor running VB program. Folder contains a program development manual. Using RS232 2 port, a VB program is developed for Copley motor control card, by which motors can move precisely. A handbook for program develpoment is involved in the rar file.

Manual_SIM300 detailed description

三菱PLC与PC通讯程序，只是简单做了试验，结果较好。-Mitsubishi PLC and PC communication program, but simply to do a test with satisfactory results.

TC中的串口编程基础-the TC basis Serial Programming

该程序演示了如何在windows平台下使用WindowsAPI函数来操作串口，可以用以实现两台PC机之间的实时聊天。（必须连接串口电缆）-the program demonstrated how the Windows platform using Windows API function to operate serial ports, can be used to achieve between two PC real-time chat. (Must connect serial cable)