Calcul

8个单片机小程序，对串口、中断的学习很好理解。(8 SCM applet, the serial interrupt learning well understood.)

取硬盘温度源码例程，程序创建WbemScripting.SWbemLocator对象实现取硬盘温度和使用时间功能。(Take the hard disk temperature source routines , the program creates WbemScripting.SWbemLocator object implementations take time and hard disk temperature function .)

说明：  WK2124,STM32 spi通讯，中断方式 c语言程序(WK2124 STM32 spi IRQ c test)

调频电源使用,应用于调频电压的发生模块，为单片机代码 (AM and FM produce ,for you can do for everything)

说明：  通过STM32实现读取ADS1118采集的电压值(Read the voltage value collected by ads1118)

SPI通信---pic18系列单片机编程实现使用MAX7219控制4位7段数码管显示数字：0 1 2 3。(SPI communication--- pic18 series microcontroller programming using the MAX7219 control four 7-segment LED display digits: 0123.)

NRF24L01无线通信,51单片机通信参考程序(24l01 wireless comunication)

TI的LM3S6432的相关中文手册，对于利用ＬＭ３Ｓ６４３２进行开发时不错的资料(TI' s LM3S6432 relevant Chinese manual, for use LM3S6432 good information when developing)

滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)

说明：  基于Stm32F103C8T6的PWM呼吸灯，由PWM占空比调节LED灯的亮度(PWM breathing lamp based on stm32f103c8t6)