use-PCF8591-to-check-the-voltage

说明：  STM8S_StdPeriph_Lib_V2.3.1 官网驱动包(STM8S_StdPeriph_Lib_V2.3.1 official driver pakcage)

PIC24单片机实现的计算器，在protus下仿真实现(PIC24 MCU calculator, under Simulation in protus)

说明：  跳绳测试仪程序，基于STC单片机开发设计，精度高(Rope skipping tester program, based on STC microcontroller development design, high precision)

采样法生成三相SPWM波的开环调速控制程序载波频率为20KHz，或载波周期为50μs。DSP晶振10MHz，内部4倍频，时钟频率为40MHz，计数周期为25ns。假设调制波频率由外部输入（1～50Hz），并转换成合适的格式(Sampling method to generate three-phase SPWM wave open-loop speed control procedures for the carrier frequency 20KHz, or carrier period is 50μs. DSP crystal 10MHz, internal 4 multiplier, the clock frequency of 40MHz, counting cycle 25ns. Assuming wave frequency modulation by external input (1 ~ 50Hz), and converted into a suitable format)

说明：  C for CUDA 是Nvidia公司开发的为GPGPU而准备的工具,这是他的编程指南,为初学者准备.(C for CUDA is Nvidia developed the tools prepared for the GPGPU, it is his programming guide for beginners)

　Hittite公司以创新的设计使得其PLL产品性能优异，在相位噪声，杂散方面有着卓越表现，其芯片的高集成度使得外围电路简单，设计方便。所以随着电子技术的发展，对频率源的相位噪声性能要求越来越高，Hittite的低相位噪声PLL，在物理、天文、无线电通信、雷达、航空、航天以及精密计量、仪器、仪表等各种领域里都将大有用武之地。(The Hittite companies with innovative design makes the PLL excellent product performance, the phase noise, spurious aspects with excellence, its high integration chip makes the peripheral circuit is simple and easy design. So with the development of electronic technology, phase noise performance of frequency source is more and more high, the Hittite low phase noise PLL, in physics, astronomy, radio communication, radar, aviation, aerospace and precision measurement, instruments, meters and other fields will be great.)

基于STM32的12864驱动程序，可以实现字符、数字、图片、任意直线和任意点的显示，并且有程序详解，很任性(Based on the STM32 12864 driver, you can realize the characters, numbers, pictures, any line and any point of the display, and a program explain, very headstrong)

UCOSII在C8051F340上的移植(C8051F340 UCOSII)

STM32 spi dma算法，STM32 f103网上找的两个例程(STM32 spi dma Algorithms, two routines for searching STM32 F103)

用C语言对LED灯进行测试 通过实际按下键盘进行测试笔(the test of LED with C language and the keyboard is a necessity )