基于凌阳SPCE061，具有语音功能的波形发生器

20键PS2小键盘中断服务程序-20 keys PS2 small keyboard interrupt service program

With the program AD9854C.exe one can set and tune the frequency in CW-mode. For use as a receiver LO also IF can be given and the both possible receiving frequencies are printed on the screen. The level in Q-outputs can be varied by giving the wanted attenuation in dB. This function is done by controlling a 12b digital multiplier in the device. In this case the level decreases somewhat with increasing frequency as it does in DDS devices. Alternatively the inverse sinc correction can be chosen, in which case the output is flat and high. -With the program AD9854C.exe one can set and tune the frequency in CW-mode. For use as a receiver LO also IF can be given and the both possible receiving frequencies are printed on the screen. The level in Q-outputs can be varied by giving the wanted attenuation in dB. This function is done by controlling a 12b digital multiplier in the device. In this case the level decreases somewhat with increasing frequency as it does in DDS devices. Alternatively t

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.

该文件里包含了大量的常用经典的程序代码,可以为51编程者带来事半功倍的效果,-The document contains a number of popular classics code can be programmed for 51 brought a multiplier effect,

atmega32 和RS485的通讯，已经在电路板上测试通过，RS232相对简单一点，RS485需要对控制收发信号处理一下，并且需要RS232转RS485工具来验证收发是否正确-atmega32 and RS485 communication, has been tested in the circuit board, RS232 relatively simple point, RS485 transceiver control signals need to deal with you, and will need RS232 to RS485 transceiver tools to verify the correctness of

语音芯片ISD1420的C语言程序，实现简单的语音存储与播放。在KEIL下运行-ISD1420 voice chip of the C language procedures realize a simple voice storage and playback. Run in KEIL

STC12C5410AD温湿度采集并将模拟量通过对半查找法查表转换-STC12C5410AD simulation of temperature and humidity and the amount collected through semi-look-up table to find the conversion law

凌阳单片机的遥控解码介绍和应用，pt2262、pt2272编解码遥控系统-Sunplus SCM introduction and application of remote control decoders, pt2262, pt2272 codec remote control system

avr单片机的12864Lcd程序，实现文字的嵌入式显示，proteus仿真-avr SCM 12864Lcd procedures realize embedded text display, proteus simulation

三星公司的一款1602vfd显示屏，它的特点是便宜，目的是为了取代相应的液晶显示屏。由于vfd的亮度的天独厚，温度适应性宽，所以在工业环境中的重要性毋庸置疑，我给美国老板开发了这个四路温度显示。已经使用两年了。-Samsung 1602vfd a display, it is characterized by cheap, is designed to replace the corresponding LCD screen. Because the brightness of the day vfd independence thick, wide temperature adaptability, so in the industrial environment, the importance of doubt, I am the boss to the United States has developed this four-way temperature display. Has been used for two years.