C8051F040 T4 capture measured pulse frequency square

MAX7219用于键盘控制和led控制的专用芯片，对于初学者有很大的帮助。-MAX7219 uses in the keyboard control and the led control special-purpose chip, has the very big help regarding the beginner.

以SPCE061A单片机为核心，通过DDS合成技术设计制作了一个步进值能任意调节的多功能信号源。该信号源在1KHz～10MHz范围能输出稳定可调的正弦波，并具有AM、FM、ASK和PSK等调制功能。信号输出部分采用低损耗电流反馈型宽带运放作电压放大，很好地解决了带宽和带负载能力的要求。系统带中文显示和键盘控制功能，操作简便，实现效果良好。-SPCE061A can preview and so on 片 Lennon为， Center Services Toru DDS magnetic rude summarized chirpy术instance, a few leftover制brazing stamp festival值vehicles Qin Kui 任 comment slander people cavity features信ulcers ulcers信Tai Tai 。 clams Now 1KHz `10MHz Kui Yu围HUAI embankment稳corner cavity strip Qin Shu Hao ，弦bleed at the nose of sweet seized AM) FM) ASK Core inflation PSK Tan制features 。信ulcers HUAI snapped embankment Qun Xu malaria tablets using delicious cream changchu destroyed sneeze型compliance turbulent changchu压brazing temperature side of bridge ， exhaust temperature submerged low-hua chiao suspect left Rui turbulent turbulent compliance pupa Xikui weak potato cavity lynx 求 。 department turbulent conduct anti中striped text显Rui-ying制satirical features captured ， ， Fuzeng brazing Canals Xi现invalid wife of mother

ARM7 lpc2148通过DS18B20温度采集并通过1602显示-ARM7 lpc2148 through DS18B20 temperature acquisition and through 1602 show

这个代码是用8989C51和12887开发的。-This code is 12887 8989C51 and development.

MCS-51单片机汇编程序-MCS-51 assembler

51单片机实现红外键盘的解码，红外发射芯片61-51 single-chip implementation of the decoding infrared keyboard, infrared transmitter 6122

设计使得原本需要14个IO接口的键盘显示少用了9个单片机IO接口,虽然该设计的优势在本实验中没有完全体现出来,但若在现代工业设计中应用此方案,在对引脚需要较大的产品中其优点将体现得淋漓尽致。.-Design makes the original needs 14 IO interface shows the use of a keyboard 9 Singlechip IO interface, although the advantages of the design in this experiment did not fully reflected, but in modern industrial design in the application of this program in the pairs of primers Products feet larger in its merits and will be reflected most vividly. .

MSP430f149上LCD显示的程序，此程序为一个完整的程序，直接下载就可使用-MSP430F149 on the LCD display procedure, this procedure for a complete procedure, can use direct download

提供信号发生芯片AD9833的使用实例。包括命令字的初始化以及一个通用波形发生函数。-provide signal generation chip AD9833 examples of the use. Including the order of the words and initialize a common occurrence waveform function.

单片机C语言的精确延时程序设计，很有用的哦- The monolithic integrated circuit C language precise time delay programming, is very useful oh