DHT22-04

说明：  次代码是针对STC8系列的单片机的延时函数，使用 此代码可以直接添加调用，程序自动获取内部系统时 钟后初始化延时函数。只要是ISP软件默认的时钟频 率都可以应用（特殊频率除外） 该代码为初版，还存在很多缺陷，请各位大佬勿喷，谢谢！ 注意： 次代码仅适用于STC公司最新的STC8系列单片机(Delay Function of Single Chip Microcomputer)

IPTV STANDARD FROM YDT.(2007)

TI BeagleBoard-XM的開機映像檔，將其解壓縮後，執行其中的sh檔即可自動將你的uSD卡格式化並安置好開機映像檔，其中包含一個readme文檔，可參照其方式執行。(TI BeagleBoard-XM s boot images,uncompress it and execute the .sh file then it can automatically format your uSD card and make install the boot images in it.There is a readme file included and can be followed.)

SD Specifications_Ver3.01

说明：  基于STM8的DHT11温湿度计，单总线通讯(DHT11 Thermometer and Humidimeter Based on STM8, Single Bus Communication)

STC15单片机控制Sim808模块获取GPS位置信息并通过短信发送到设定的手机上(STC15 microcontroller to control the Sim808 module to obtain GPS location information and send messages to the settings on the phone)

HONEY实现工业控制过程的系统,进行任务调度.(HONEY process of industrial control systems, task scheduling.)

msp430f5529串口打印程序，实现字符串的发送，用于gsm等。(//****************************************************************************** // MSP430F552x Demo- USCI_A0, 9600 UART, SMCLK, LPM0, Echo with over-sampling // // Description: Echo a received character, RX ISR used. Normal mode is LPM0. // USCI_A0 RX interrupt triggers TX Echo. // If UCOS16=1, UCBRx=Fbrclk/(16*Baudrate) // Baud rate divider with UCBRx = 1MHz/(16*9600) = ~6.8 // ACLK = REFO = ~32768Hz, MCLK = SMCLK = default DCO = 32 x ACLK = 1048576Hz // See User Guide for baud rate divider table // // MSP430F552x // ----------------- // /|| | // | | | // --|RST | // | | // | P3.3/UCA0TXD|------------> // | | 9600- 8N1 // | P3.4/UCA0RXD|<------------ // // Bhargavi Nisarga // Texas Instruments Inc. // April 2009 // Built with CCSv4 and IAR Embedded Workbenc)

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)

说明：  stm32f103rct6 IAR工程环境，使用IAR 8.x(stm32f103rct6 project)