pulsing-signal

说明：  keil4 89c52 MAX7219点阵原理图.pdf MAX7219英文.pdf MAX7219中文.pdf MAX7219.uvproj max7219.hex(keil4 89c52 MAX7219Lattice schematic diagram.pdf MAX7219EN.pdf MAX7219CN.pdf MAX7219.uvproj max7219.hex)

基于stm32的陀螺仪调试程序，可以配套相关调试软件，使用串口观察(Stm32 based gyroscope debugger, you can debug supporting related software, serial observation)

有关 C语言的CRC校验的资料，很实用，值得收藏和学习(About the C language, the CRC data, it is practical, it is worth collecting and learning)

zhigongcankao,zijixiede,hualehenchangshijian

STC单片机IO口模拟RS232测试程序,Keil Cx51应用开发技术中的程序主要的功能是在利用串口调试工具发送一个8bit的数据，而后单片机接收后把这个数据发送给模拟串口(STC Single-chip analog IO port RS232 test procedures, Keil Cx51 technology application development process is essentially the function is in the use of serial debug tools send an 8bit data, and then after the single-chip receive the data sent to the simulation of serial)

BSH3C软件可用于电子工程领域的研究人员使用，该款软件用户体验很好，方便你的电子设计，特别是画图。电路图可导出成bmp格式(The material is a software to draw the hardware circuit diagram and confirming the procedure result)

于市售 STM32 开发板上实现特定人语音识别处理项目。识别流程是：预滤波、ADC、分帧、端点检测、预加重、加窗、特征提取、特征匹配。端点检测(VAD)采用短时幅度和短时过零率相结合。检测出有效语音后，根据人耳听觉感知特性,计算每帧语音的 Mel 频率倒谱系数(MFCC)。然后采用动态时间弯折(DTW)算法与特征模板相匹配,最终输出识别结果。先用Matlab对上述算法进行仿真，经数次试验求得算法内所需各系数的最优值。而后将算法移植到 STM32 开发板上，移植过程中根据 STM32 上存储空间相对较小、计算能力也相对较弱的实际情况，对算法进行优化。最终完成于 STM32 微处理器上的特定人语音识别系统。(Implement speech recognition processing project in commercially available STM32 development board. Identification is the process: pre-filter, ADC, framing, endpoint detection, pre-emphasis, windowing, feature extraction, feature matching. Endpoint detection (VAD) short-time amplitude and short-term zero rate combined. After detecting an effective voice, according to the characteristics of human auditory perception, calculated for each frame of speech Mel Frequency Cepstral Coefficients (MFCC). Then dynamic time warping (DTW) algorithm and feature template matches the final output recognition result. First with Matlab simulation algorithm described above, after several trials to get the optimal value of each coefficient within the desired algorithm. The algorithm will migrate to STM32 development board, the porting process according to the STM32 relatively small storage space, computing power is relatively weak situation of the optimization algorithm. Finally completed on the STM32 micr)

用89S52作的远程序电话拨号系统，能完成收发功能，利用的芯片是MT8880，里面有源程序以及生成的hex文件，开发环境是keil(89S52 far with the procedures for telephone dial-up systems, to complete the send and receive functions, the use of the chip is MT8880, which has source code and hex file generated by the development environment is keil)

基于TMS320C55X的程序开发，主要包含AD、USB的实例程序(TMS320C55X based application development, mainly include AD, USB an instance of the program)

多层pcb板，可以直接制版并输出。本板是六层pcb，由dsp+arm共同组成！(Multilayer pcb boards, and can output to plate. The board is six pcb, composed of the dsp+ arm!)