modbus rtu 通讯 使用spcomm控件

c8051F221的SPI总线通信(收)-c8051F221 SPI Bus Communication (received)

RS232 C51的通讯程序,根据自己的需要稍做修改,就可以使用了.-RS232 C51" s communication procedures, according to their own needs minor changes, you can use.

delphi1 的串口通讯控件，经过改进的-delphi1 serial communication control, improved

射频卡读写程序,C#版，绝对绝无仅有的，可以读写交通卡，需要读写设备-RF card reader procedures, C# version, absolutely unheard of, the card can read and write traffic, the equipment needed to read and write

vb.net与232串口通讯 vb.net与232串口通讯-vb.net and 232 serial communications vb.net and 232 serial communications

串行通讯的源程序，希望帮到人哦。是再LAB2000系统下实现过的-Serial communication source, hoping to help people, oh. LAB2000 system is re-realize-off

Agilent 86100C GPIB & GPIB card programming 文件-Agilent 86100C GPIB

这是非常有挑战性的题目。对于用户输入的任意一个平面函数f(x)，绘制出其函数曲线。这里最关键的技术难点就是如何实现计算表达式的值。在《编译原理》和《数据结构》的书中，都有对表达式运算方法的论述。说实在的，在编译型计算机语言中实现对用户输入表达式的运算是非常困难的。需要对表达式进行扫描，去括号，按照运算符的优先级生成2叉树，然后遍历该树生成逆波兰表达式，再然后通过栈的方法进行运算。如果在表达式中再包含有函数的话......描述起来都麻烦，更不要说用程序实现了:-(-This is a very challenging issue. For user input an arbitrary planar function f (x), mapping out its function curves. Here the most critical technical problems is how to achieve calculated the value of the expression. "Compiling Principle" and "data structure," the book, have right of expression Operational discussed. Indeed, the computer language compiler to achieve expression of the user input operation is very difficult. Need to scan expression to the brackets, in accordance with the priority Operators Generation 2-ary tree, and then traverse the tree generated reverse Polish expression, and then through the stack approach to computing. If the expression again contains the function described ...... these are trouble, not to mention t

在ISE上可运行次程序 改程序主要用实现FPGA串口通信-In the ISE program can be run at the main change procedures realize FPGA serial communication

wavecom短信猫使用源代码及相关AT指令-Wavecom message cat use the source code and related AT commands