CC2420+PA 一个CC2420加PA的PCB板图，载频是2.4G

嵌入式TCP/IP协议栈。 C 源码，对于开发TCP/IP协议栈的用户具有非常大的参考价值。-embedded TCP/IP protocol stack. C source code for the development of the TCP/IP protocol stack users with a great reference value.

使用89S52芯片来驱动1602液晶显示,用KEILC51编译,可靠,并实践过.-err

C51很好的IO模拟串口程序，也称软件UART。只需用一个定时器，实现中断接收。程序编写得很规范，有很多个晶振频率和串口频率可选。是一个比较好的软件串口程序。-C51 a good simulation of serial IO program, also known as the software UART. Just use a timer to achieve interrupt reception. Programming very standardized, there are many a crystal oscillator frequency and the frequency of an optional serial port. Is a relatively good software serial programs.

ID读卡程序,在可以读取ID卡卡号,判断身份,在门禁考勤大量应用-ID card reader, and in the can read ID cards card number, as judge, in a large number of applications are disucssed

凌阳单片机的语音程序4，供学习凌阳单片机的学习者参考-Sunplus SCM four voice procedures for learning Sunplus SCM reference learners

单片机P1口与4个按键连接，用于信号幅度和频率调节操作键。单片机P0、P2.7、P3.6(-WR)与DA0832、2个741(运放)连接构成波形信号输出电路。 编程使波形信号输出电路输出正弦波信号，并且可通过操作键调节信号的幅度和频率。幅度和频率调节级别从0~10，共11个等级。 -Singlechip P1 I connect with the four buttons for the signal amplitude and frequency adjustment operation keys. Singlechip P0, P2.7, P3.6 (-WR) and DA0832, 2 months 741 (operational amplifier) to connect constitute waveform signal output circuit. Programming so that waveform signal output circuit output sine wave signal, and can be operated keys adjust the signal amplitude and frequency. Amplitude and frequency adjustment level from 0 ~ 10, a total of 11 grades.

keil c程序,用于AT89S52单片机.使用了T2计数器,有频率计的功能-keil c program for single-chip AT89S52. the use of the T2 counter, there is the frequency of functional

单片机液晶显示程序，请大家批评指教-Single-chip liquid crystal display program, please advise everyone to criticize

详细介绍51单片机操作系统，包括keilc编译环境的库函数以及其功能，还有如何调用这些函数。-detailed 51 microcontroller operating systems, including keilc build environment of the library function and its function. Besides calling these functions.

实现数码管的循环计数，数码管接法为共阴级接法。-To achieve the cycle count of the digital control, digital control connection for a total of Yin-class connection.