yc2440 under development board serial communication software, through the API fu...

串行通信接口标准经过使用和发展，目前已经有几种。但都是在RS-232标准的基础上 经过改进而形成的。所以，以RS-232C为主来讨论。RS-323C 标准是美国EIA(电子工业联合 会）与BELL等公司一起开发的1969 年公布的通信协议。它适合于数据传输速率在0～ 20000b/s 范围内的通信。这个标准对串行通信接口的有关问题，如信号线功能、电器特性 都作了明确规定。由于通行设备厂商都生产与RS-232C制式兼容的通信设备，因此，它作为 一种标准，目前已在微机通信接口中广泛采用。-Serial communication interface standard through the use and development, now has several. However, in the RS-232 standard on the basis of an improved formed. So to the main RS-232C for discussion. RS-323C standard is the United States EIA (Electronics Industry Association) and BELL, such as the development of the company in 1969 with the publication of the communication protocol. It is suitable for data transfer rate at 0 ~ 20000b/s within the scope of communication. The standard serial communication interface of the relevant issues, such as signal line features, electrical characteristics have been clearly defined. Because of prevailing production and equipment manufacturers have standard RS-232C compatible communications equipment, t

金卡（gold card),俗称84卡，即采用pic16c84芯片的智能卡，读写编程程序。用vb4写的。-gold card (gold card), commonly known as 84 cards, the chips used pic16c84 smart card reader programming procedures. With vb4 writes.

VC6 多线程的串口操作，有线程同步的解决方法（terminal）-VC6 multithread serial operation, thread synchronization solution (terminal)

串口扫描程序,能够边扫描边进行数据的判断-serial scanning procedures can-while-scan data judgment

一个串口程序,用Delphi3写的.程序简洁明了,功能函数齐全,经测试完全通过.-a serial program, Delphi3 writes. Procedures concise, full-function, Testing entirely through.

一个很好的水文监测系统 vb 串口-a good hydrological monitoring system vb Serial

多线程在VC++串口通信程序中的应用.pdf -multithread serial communication in VC procedures for the application. Pdf multithread serial communication in VC procedures for the application . pdf

dos 下的串口编程源代码，可使用中断-dos under the serial programming source code can be used interruption

实现了modbus RTU通讯协议的COM组件-realized Modbus RTU communication protocol COM

vb串口通讯vb串口通 vb串口通-vb serial communication serial port vb serial vb Qualcomm Qualcomm