SVPWM

mma7455 的驱动程序，完美稳定版。想做三轴加速的传感器的可以看看，stm32版。(mma7455 driver, perfectly stable version. I want to do three-axis acceleration sensor can see, stm32 version.)

DM6446的USB最底层发包收包代码，不含协议，学习的最好代码！仅仅发送接收数据！(DM6446' s USB lowest bidding closed package code, a protocol, to learn the best code! Just sending and receiving data!)

说明：  基于r7f0c809单片机的便携式电源，可以给手机等消费电子产品充电，具有过电流、过电压、过温保护功能。(The portable power supply based on r7f0c809 MCU can charge mobile phones and other consumer electronic products, and has the functions of over-current, over-voltage and over-temperature protection.)

本作品以MSP430单片机为核心， 基于DDS原理，通过查表方式输出步进量为10HZ，频率为100HZ~2KHZ的正弦波。两路被测信号通过过零比较、异或和低通滤波整流，实现了对相位差的测量，误差小于(This works with MSP430 microcontroller as the core, based on DDS principle, by look-up table output step sizes for the 10HZ, frequency of 100HZ ~ 2KHZ sine wave. Two by the signal zero-crossing comparator, XOR, rectification and low-pass filtering, the realization of the phase of the measurement error is less than)

实现在STM32F407上驱动ADS1115的代码(Implement the code that drives ADS1115 on STM32F407)

MPU6050传感器的六轴姿态解算算法代码(Six-Axis Attitude Solution Algorithmic Code for MPU6050 Sensor)

通过上位机来控制LED显示的数字内容，主要是动态显示数字变化情况(Through the host computer to control the LED display digital content, mainly dynamic display of digital changes)

使用stm32在KEIL mdk 的环境下 实现压控增益，其中用的DAC7311芯片和OPA830运放(The use of STM32 to achieve the VCO gain in KEIL MDK environment, the use of DAC7311 chip and the OPA830 op amp)

320240触摸绘图程序，查询方式和中断方式两种测试例程(320240 touch drawing program, query way and interrupt way two test routines)

温度传感器DS18b20的最新驱动，供单片机学习开发参考使用(DS18b20)