Test_ifnonnull

利用AT89C51单片机做的一个音乐卡,可以播放多首歌曲(AT89C51 single-chip microcomputer use to do a music card, can play more songs)

pdc_adma.c - Pacific Digital Corporation ADMA.

对于C中的数组操作，希望可以对您的学习有所帮助(Array of operations for the C in the hope that can help you learn)

说明：  对比度调节实验 背光调节实验 数字时钟实验 模拟时钟实验(Contrast adjustment experiment Backlight adjustment experiment Digital clock experiment Analog clock experiment)

介绍了一种SPI从机的接口verilog编码(verilog code for spi slave )

说明：  This is an STM32 program for the CS43L22 Audio Codec.

The sliding DFT is a spectral analysis method based on the classical FFT, implemented over a subset of the N center frequencies of the N-point DFT. The sliding DFT (SDFT) algorithm performs an N-point DFT on time samples within a sliding-window.

本程序实现了基于MSP430F1611的简易相位测量仪的功能。主要包含DDS正弦信号发生模块，ADC采集模块等，稍作改动即可应用(This program MSP430F1611 realized based on the simple phase measuring instrument function. Mainly includes DDS sine signal producing module, ADC acquisition module, make a bit changes can applications)

ks0108驱动atmea16的；用于proteus仿真使用；可以加载调试其他程序进行显示观测；(ks0108 driver atmea16 for Proteus simulation use can load debugging other programs to display observation )

一个关于双机之间的通讯联系：包括串口设置。地址编码，按键设置等。另付proteus仿真原理图，可以动态观察。对学习多机通讯很有帮组(One on communication links between the two-machine: including the serial port settings. Address code, key settings. Extra proteus simulation diagram, can be dynamically observed. Multi-machine communication is useful for learning to help groups)