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利用stm32上自带的ad和da进行模数和数模转换实验(Use the built-in ad and da stm32 analog to digital and digital to analog conversion experiments)

数码管显示当前温度程序 适用于CC100C，若数码管上电后有残影，请将液晶显示器拔下后重新上电(Digital tube displays the current temperature procedure applies to CC100C, if the digital control power after stuttering, please unplug the LCD monitor and re-power)

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：  OCM12864参考程序_ 挺好的 适合做参考程序(_ OCM12864 reference to procedures for the very good reference procedures)

仿真讯鸟的坐席服务器的软件。在没有CTI的工作环境下，也可以适合作呼叫中心坐席软电话开发(simulation appear birds dine server software. CTI in the absence of the working environment, they can be suitable for call center soft phone development Seat)

51单片机SCMrtoss源代码，非常好用的能够移植 (51 the microcontroller SCMrtoss source code, very useful to be able to transplant)

利用28335的cpu-timer0的中断功能进行AD采集，并有AD校核程序(Use cpu-timer0 interrupt functions of 28335 AD acquisition, and checking procedures AD)

本程序是TI的32位单片机LM3S9D96官方开发板上、基于IAR平台的，用C语言编写的的一个设计AD、液晶显示、串口打印的完整工程文件。已经调通。原创的程序。对于掌握LM3S些列单片机的高级功能很有用。(This program is TI' s 32 the microcontroller LM3S9D96 official development board, IAR platform, written in C language design the AD LCD, serial print complete engineering documents. Has been transferred Qualcomm. Original program. Useful advanced features master LM3S these columns microcontroller.)

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全国大学生电子竞赛中的智能小车的设计，基于汇编语言内含设计图(Smart car)