串口写单片机的小程序!主要是89系列和90AT8XXX系列!-write small programs! Mainly 90AT8XXX 89 series and the series!

提出了一种用C语言实现PC机串行通信的方法,分析了PC机串行通信原理,采用计算机自身携带的 RS-232C标准接口进行通信。该方法程序小,硬件连接简单,且可应用到PC机与单片机或其它仪器仪表的 串行通信中去,因此具有较广的使用价值 -A method of computer serial communication is proposed in the paper. The data is trans- ferred between twoCOM portswith theAsy

读写并口的一个小程序。对并口直接读。方便用并口进行控制，扩展后和单片机通信。-Parallel read and write a small program. Read directly on the parallel port. Easy to control with the parallel port, extended and single-chip communication.

AVR MEG128单片机的附带程序，包括LED、SPI、EPROM、WATCHDOG等小程序，完全可以使用，适合初学者-The the microcontroller AVR MEG128 incidental proceedings, include LED, SPI, EPROM, WATCHDOG applet can use for beginners