PID_DTC

一个数字钟得实现，简单的小应用，适合初学者，51单片机(A digital clock was to achieve a simple application, suitable for beginners)

利用STM32单片机控制16AD采集芯片AD7705进行数据的采集，并返回给单片机进行显示及处理(Use STM32 MCU control 16 AD acquisition chip AD7705 for data collection, and returned to the microcontroller for display and processing)

利用28335自带的ADC采集两路模拟正弦信号，用DMA方式将采样值写入内存，用epwm控制采样周期。利用FFT求得两路正弦信号的相位差。(Sampling two analog sinusoidal signals, write them to the memory by DMA controller. The sampling period is controlled by the EPWM module. Calculate the phase difference by FFT method.)

STM32F1、F4电机PWM调速及PID速度闭环控制(PWM Speed Regulation and PID Speed Closed-loop Control of STM32F1 and F4 Motors)

stm32f103 lib header 头包含文件结构(stm32f103 lib header)

TI_ DMC_ HV_ PMSM_ F28335_Sensorless 2.psimsch

Test code for TFT 3.5 LCD touchscreen for Arduino UNO

说明：  风洞悬浮球程序 本程序来源于正点原子例程 芯片为STM32F103ZET6 超声波测距模块SR04 ILI9341主控的320*240液晶屏 程序使用超声波测距模块SR04测量透明亚克力管子内风洞悬浮乒乓球的位置， 输出给ILI9341主控的320*240液晶屏上，在屏幕上画出球的位置曲线。 可通过串口1输入修改PID参数以及悬浮球目标位置(Translate by GOOGLE from Chinese Wind tunnel suspension ball program This program is derived from the punctual atomic routine The chip is STM32F103ZET6 Ultrasonic ranging module SR04 320 * 240 LCD screen controlled by ILI9341 The program uses the ultrasonic ranging module SR04 to measure the position of suspended table tennis in a wind tunnel in a transparent acrylic tube. Output the position to the LCD screen with 320 * 240 resolution, and draw the position curve of the ball on the screen. Can modify PID parameters and hoverball target position through serial port 1 input)

矩阵按键测试程序, 输出结果用串口传输到上位机显示(Matrix key test program, the output with serial transmission to the PC)

T9拼音输入法实验，9键输入法程序，算法优良(T9 Pinyin Input Method Experiments)