你可以通过COM端口和显示留言板链接Jennic

C语言开发串行通讯程序库，可用来进行串口开发用-C-language development serial communication libraries, which can be used for development with Serial

cdma钟卡控制编程,用到口通讯,数据包拆分组合,发送-serial port congtrl

The PCD5003A is a very low power decoder and pager controller specifically designed for use in new generation radio pagers. The architecture of the PCD5003A allows for flexible application in a wide variety of radio pager designs. The PCD5003A is fully compatible with “CCIR Radio paging Code No. 1” (also known as the POCSAG code) operating at data rates of 512, 1200 and 2400 bits/s using a single oscillator crystal of 76.8 kHz. In addition to the standard POCSAG sync word the PCD5003A is also capable of recognizing up to 4 User Programmable Sync Words (UPSWs). This permits the reception of both private services and POCSAG transmissions via the same radio channel. Used together with the Philips UAA2080 or UAA2082 paging receiver, the PCD5003A offers a highly sophisticated, miniature solution for the radio paging market. Control of an RF synthesizer circuit is also provided to ease alignment and channel selection

可以控制串口RTS DTR引脚电压分布的小程序

完整的异步串行通信的处理程序-integrity of the asynchronous serial communication procedures

TTL串入并出口74hc164资料 。希望可以用-TTL string into and exported 74hc164 information. Wanted to use

和基本使用BCB控制RS-232信号控制测试的源代码，初学者推荐

时间调度相关的开源代码，时间调度相关的开源代码-quarts

PIC模拟异步串行通讯UART。用TMR0实现定时查询。任何带中断的PIC上都可以实现。可用此法扩展多个串口。-PIC simulation asynchronous serial communications UART. Timing TMR0 with inquiries. Any interruption with the PIC are to be attained. This method can be extended serial number.

可实现串口通信的DLL文件源码.通信速度快,易调试,占用系统资源少,非常实用.-serial communication can be realized DLL source. Communications faster, easier debugging, occupying less system resources. very practical.