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自己编写的关于火车列尾风压控制的程序,涉及串口,数据库等相关内容-I have written out on the train tail wind pressure control procedures, involving serial, database and other related content

从串口读取数据，有两种方法，1、每接收一个EV_RXCHAR,就用ReadFile读一次，这样我觉得太恐怖了。2、接收到一个EV_RXCHAR后，等一定数据量的CPU周期(GetTickCount),再一次性读取缓冲区里的数据。这样做，一般情况下不会有问题，但是，如果数据很多，过了“一定数据量的CPU周期”，还没收完数据怎么办？就会少读数据了。 我用三个线程序来完成串口数据的接收，其实就是第一种方法的变种： 一个侦听EV_RXCHAR,一个对EV_RXCHAR进行分析，其实就是超时判断。如果接收到一个消息后，一段时间没收到下一个EV_RXCHAR，就认为是一个数据包的结束。这个线程就会通知数据接收线程，进行数据接收。一般同一包数据，两个字符之间的时间间隔，应该很小了吧，而两个数据包之间的间隔，应该不会太小吧！（这个地方我不清楚，猜的:( :) ）最后一个线程，是接收数据的。-read data from the serial port, there are two methods, one, each receiving a EV_RXCHAR, on the ReadFile read, I think this vote. 2, received a EV_RXCHAR after a certain volume of data, such as CPU cycles (GetTickCount), and the one-time reader, the data buffer. To do so, under normal circumstances there is no problem, but if many of the data, and after a "certain amount of data the CPU cycles," also confiscated End Data how do? Few will read the data. I used three lines to complete serial data reception, the first method is a variant : an interception EV_RXCHAR, one pair of EV_RXCHAR analys

控制X射线和高压源的典型应用程序，包括经典的串口数据处理。-Control the source of X-rays and a typical high-pressure applications, including the classic serial data processing.

NMEA解析，重组 函数源代码！ 能够根据格式符自定义输出，方便扩展-NMEA parsing, restructuring of the function the source code! Be able to customize the output according to format operators to facilitate the expansion of

DOS环境下,使用Borlandc开发的串口通讯程序-DOS environment, the use of Borlandc the development of serial communication program

kermit 文件接收协议的c语言实现，用于RS232。-kermit file to receive the agreement realize c language for the RS232.

51单片机的MODBUS的通信协议，学习中。

通讯类程序,serialport串口通讯源代码-servail

向串口发送数据，在从串口接数据，需要注意的是把2、3脚短路。-to send data from the serial data access, it needs attention is 2,3 feet short.

串口驱动和串口程序。基于RS-232协议的串口通信程序。-Serial port driver and serial procedures. Based on RS-232 serial communication protocol procedures.