一个gps通讯接口程序可及时更新计算机时间

这是恒坚电器提供的完整的c++串口编程源代码-Tsunekata appliances provide a complete c serial programming source code

Port Reader RS232, 485

UART测试代码，可以与实现下位机与上位机之间的RS232协议的UART通信测试-UART test code, can achieve the lower computer and the host computer RS232 protocol between the UART communications test

用C++写的RS232串口异步通讯功能模块，支持16550 UART芯片，中断收发数据，波特率最大115200bps，自定义收发数据缓冲大小，支持软硬件流控。-C wrote asynchronous RS232 serial communication module, 16550 UART chip, Transceivers interruption data, 115,200 bps maximum baud rate, since the definition of sending and receiving data buffer size, support hardware and software flow control.

vb编写的串口通信程序(vb编写的串口通信程序转载)-vb serial communication program prepared (vb serial communication program prepared reprint)

一个串口通信的源码，以2进制形式实现传输，可以传输图像等各种文件。-a serial communication source to the form of two-band transmission, transfer images and other documents.

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

串口通信 源程序-Serial Communication source

4510 bios,please see it carefully!and so on,no thanks

一个串口通信的例子，简单的。。可以先学习。-Example of a serial communication, simple. . Can learn.