测试频率 基于C8051F330单片机的频率测试 频率测试精度：0.1Hz...

显示界面的显示程序显示 界面的显示程序-Show interface show interface display program to display the show interface display program

常用红外遥控编码资料集 包括各品牌的红外数据格式，对红外开发非常有用-Common infrared remote control encoded data sets, including the brands of infrared data format, a very useful development of infrared

实现T9693C 液晶的51 C源程序 包含划线, 字符,图形,影像功能-T9693C LCD realize the source code contains the 51 C line, characters, graphics, video capabilities

用avr单片机实现的12864驱动程序，使用ICCAVR编译，带原理图和熔丝设置。-Avr with 12864 single-chip implementation of the driver, use the compiler ICCAVR with schematic and fuse settings.

Proteus Model - RTL8019AS Realtek Ethernet Controller V0.1B-Proteus Model- RTL8019AS Realtek Ethernet Controller V0.1B

89c51单片机定时中断动态四数码管显示的控制程序-Interrupted from time to time 89c51 single-chip digital display dynamic four of the control procedures

ST736单片机，驱动液晶芯片HT1623-ST736 MCU, LCD driver chip HT1623

时钟芯片ds12c887线片驱动程序，可直接应用-Clock Chip ds12c887-ray driver, can be directly applied

嵌入式系统已经广泛应用于各个科技领域和日常生活的每个角落，由于其本身的特性，使得我们很难发现它的存在。甚至一些从事嵌入式系统开发的科技人员也只知单片机，不知道嵌入式系统。本节从嵌入式系统的定义开始，阐述嵌入式系统的含义、特点等，以使读者加深对嵌入式系统的理解。 -Embedded systems are widely used in various fields of science and technology and everyday life in every corner, due to its own characteristics, making it very difficult for us to discover its existence. Embedded systems and even some involved in the development of scientific and technical personnel are also only single-chip, embedded systems do not know. This section from the beginning of the definition of embedded systems, embedded systems on the meaning, characteristics and so on, in order to enable readers to deepen their understanding of embedded systems.

这是一个时钟程序，有可调功能，走时比较准确，还可定闹钟，比较实用-This is a clock procedures, have adjustable features, more accurate travel time, but also set an alarm clock, more practical