single-voltage

基于stm32固件库的触摸屏实现，可用手指触摸屏幕，类似于手机的功能(Touch screen based on STM32 firmware library can be touched by fingers, similar to the function of mobile phone)

线路通断检测器的设计： 1．用压电陶瓷蜂鸣片作为电声元件。 2．用两根导线作为测试探针 3．线路通断是通过测试电阻的大小来判断，有以下三种情况： （1）若150Ω<Rx<900Ω，则蜂鸣片不发出声响。 （2）若Rx>900Ω或者Rx<150Ω，则蜂鸣片发出间歇式的滴－滴声响。 以上各临界阻值（150Ω和900Ω），允许误差±10％ 4．＋15V直流稳压电源需要设计。 (Line-off detector design: 1. Piezoelectric ceramic buzzer as the electro-acoustic components. 2. As a test probe with two wires 3. Lines off by testing the resistance to determine the size, the following three conditions: (1) If 150Ω <Rx <900Ω, the buzzer is not audible. (2) If Rx> 900Ω or Rx <150Ω, then the buzzer sent intermittent drip- drip sound. Above the critical resistance (150Ω and 900Ω), tolerance ± 10 4.+15 V DC power supply need to design. )

C51操作TLC5615,实现DAC输出,调试通过.(C51 operate TLC5615, to achieve DAC output, debugging through.)

说明：  sd卡初始，由于SD卡使用SPI模式，并且是块读取(512Byte),所以需要单片机提供大于512的可用RAM，以供缓冲使用 这里可以选择STC89c52RD+、STC89C58RD+、STC89C516RD+，后缀RD+表明扩展RAM是1024字节，RC表明扩展RAM256字节(sd card original, because the SD card using SPI mode, and is a block read (512Byte), so they need the microcontroller to provide more than 512 of the available RAM, for buffer used here can choose STC89c52RD+, STC89C58RD+, STC89C516RD+, the suffix RD+ that extended RAM is 1024 bytes, RC that extended RAM256 byte)

ucosii在msp430 5438A上的应用。(An aplication of ucosii on msp430 5438A board。)

说明：  buck、boost、cuk、正激、反激等电路的matlab仿真和文字介绍，均运行正常(Matlab simulation and text introduction of buck, boost, Cuk, forward and flyback circuits are all running normally)

针对光伏电池的热板效应，主要研究当个光伏电池的电压电流I-V曲线，电压功率P-V曲线(For hot-plate photovoltaic effect, the main research when a PV cell voltage and current IV curve voltage power PV curve)

说明：  ADC0832是一款串行数据的AD转换芯片，该代码完成ADC0832的初始化以及应用。(ADC0832 is a serial data of the AD converter chip, the code completion of the initialization and the application of ADC0832.)

数码管是一种半导体发光器件，其基本单元是发光二极管。数码管按段数可分为七段数码管和八段数码管，八段数码管比七段数码管多一个发光二极管单元，也就是多一个小数点（DP）这个小数点可以更精确的表示数码管想要显示的内容(The digital tube is a semiconductor light emitting device. Its basic unit is a light emitting diode. According to the number of digital tube can be divided into seven digital tube and eight digital tube, eight digital tube seven segment digital tube more than a light emitting diode unit is a decimal point (DP) of the decimal point can be a more accurate representation of the digital tube to display the content)

Ultimate CRC is a CRC generator/checker. Using generics the core can be fully customized. It creates a function of the data input and the CRC register using XOR-logic. Although the levels of logic gets very high for wide data inputs, the throughput still benefits from this architecture, as can be seen from the synthesis page.