digital-calendar

飞思卡尔比赛资料，不怎么样，大家看看就算了(Freescale game data, not very good, take a look even if the)

智能指针的设计，主要为了解决野指针的问题(Smart pointer design, mainly in order to solve the problem of dangling pointers)

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)

这是24L01台产资料，详细介绍了24L01如何使用，还有一些教程。(The machine is 24 l01 production data, 24 l01 was introduced in detail how to use, and some tutorial)

stm32下跑通usb外设，编译环境基于keil(stm32 next run through usb peripherals, based on keil compiler environment)

灯光协议的DMX12 的源代码，单片机编写(mifare)

液晶显示屏OCMG源程序代码，采用的方式为串口驱动。(LCD OCMG source code, the approach for the serial port driver.)

用的是时钟芯片pcf8583，可以正常显示时间,并带有有Proteus仿真，非常形象！，已通过测试。 (Is clock chip pcf8583, can properly display the time, and with Proteus simulation, the very image of , Has been tested.)

This second edition cancels and replaces the first edition, ISO/IEC 9899:1990, as amended and corrected by ISO/IEC 9899/COR1:1994, ISO/IEC 9899/AMD1:1995, and ISO/IEC 9899/COR2:1996.

AVR单片机应用系统开发典型实例 包含电路图，C语言源码及 ICCAVR的软硬仿文件(AVR single-chip applications include the development of a typical circuit example, C language source code and documentation ICCAVR like the soft and hard)