1602字符液晶驱动实例源代码，在keil c上调试通过并实际验证-1602 characters LCD driver source code examples in keil c debug adopted and the actual verification

73K222AL单片式调制解调器与单片机的接口电路.包含文档说明、电路、源代码。-linking 73K222AL monolithic modems and microcontroller interface circuit. Includes document shows that circuit, the source code.

这个是用AVR编写的程序，这里是一个时钟电路，用数码管显示当前时间。对初学者比较有用。-This is prepared by AVR process, here is a clock circuit, a digital display the current time. More useful for beginners.

C51编写的1602液晶片驱动程序，是C语言编写的！-C51 prepared by the 1602 film LCD driver is prepared by the C language!

麦迪工作室51开发板上跑马灯的试验代码。-Madison Studio 51 on the board to develop the test code Marquee.

U2270B，对U2270B芯片进行了详细介绍。-U2270B, on U2270B chip described in detail.

设计程序使一个LED发光管以0.6秒为周期闪烁，即发光管每0.3秒点亮或熄灭一次。 分析题目要求，主要涉及两方面的操作，即控制LED发光管的亮灭以及定时0.3秒。对于LED发光管，只用一个IO就可以控制了（例如使用IOA0）；而对于0.3秒定时，我们可以利用TimerA定时器轻易地实现。-The design process of a LED to LED blinking 0.6 seconds for the cycle, that is, every 0.3 seconds LED lit or extinguished once. Analysis of the subject requirements, mainly related to two aspects of the operation, that is, control LED LED light out as well as the timing of 0.3 seconds. The LED light-emitting tube, only one can control the IO (such as the use of IOA0) and for 0.3 seconds from time to time, we can use to easily achieve TimerA timer.

TCP/IP for mcu8051

avr单片机用的，有源代码，原理图（包括JTAG和STK500）-avr Singlechip used, active code, schematics (including JTAG and STK500)