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s
说明： 单片机控制两个步进电机实现小车的走直线和转弯，使小车能画任意给定长，宽的矩形(Single-chip stepper motor control two realize the car walk straight and turn, so that cars can be painted any given length, width of the rectangular)
- 2008-05-13 17:55:00下载
- 积分：1
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Ultrasonic-range-finder
超声波测距仪设计文档，本设计主要是以74LS04和CX20106A为测距模块，DS18B20用于温度补偿，12864液晶显示，HC-SR04为超声波显示板，语音模块由音频功率放大器LM386、语音芯片WT588D、低压差电压调节LM1117组成。(Ultrasonic range finder design documents, the design is mainly based on 74LS04 and CX20106A ranging module, DS18B20 for temperature compensation, 12864 LCD, HC-SR04 ultrasonic display boards, voice module consists of audio power amplifier LM386, voice chip WT588D, LM1117 low dropout voltage regulator components.)
- 2013-11-26 21:40:18下载
- 积分：1
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查询式矩阵键盘
查询式矩阵键盘，可以用数码管显示也可以用液晶显示屏显示，我用了lcd1602显示！(Inquiry matrix keyboard, can be displayed by digital tube, can also be displayed with LCD display, I used the LCD1602 display!)
- 2017-10-30 04:12:24下载
- 积分：1
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S-transform
S变换电能质量检测代码，可以实现电压暂升暂降中断等的扰动检测(power quilty detection using S transform)
- 2021-03-26 16:09:13下载
- 积分：1
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绿色版(见内部图)
说明： 基于MSP430F5438A的AD9854驱动，AD9854的DDS核具有48位的频率分辨率（在300M系统时钟下，频率分辨率可达1uHZ）。输出17位相位截断保证了良好的无杂散动态范围指标。AD9854允许输出的信号频率高达150MHZ(Based on the AD9854 driver of MSP430F5438A, the DDS core of AD9854 has a frequency resolution of 48 bits (up to uHZ at 300 M system clock). Output 17-bit phase truncation ensures a good dynamic range index without spurious. AD9854 permits up to 150 MHZ of output signal frequency)
- 2020-06-20 02:20:02下载
- 积分：1
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key
单片机实现的按键扫描,中断1中断方式实现(MCU key scan, interrupt 1 interrupt mode to achieve)
- 2018-06-12 09:00:00下载
- 积分：1
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read-ssdt
读取ssdt函数当前地址，详见源码中、。。。。(Ssdt function reads the current address, see the source code. . . .)
- 2013-11-13 12:37:17下载
- 积分：1
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paYyo4Pd
51波特率计算，输入波特率能自动算出所需附的初值(51 baud rate calculation, enter the baud rate will automatically calculate the initial value of necessary laws)
- 2010-09-20 20:37:37下载
- 积分：1
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Analysis-of-HVDC-converters
本文基于宁东直流输电工程的实际设备的数据,在PSCAD/EMTDC中建立了包含换流器、换流变压器、直流滤波器、交流滤波器和无功补偿设备、平波电抗器以及直流输电线路的模型,并按照CIGRE直流输电系统基准模型的典型控制方式,建立了初步的直流输电三级控制结构,并分析了控制逻辑中PI环节参数的选择问题：基于BPA仿真模型中的元件模型与参数,在PSCAD/EMTDC中建立了山东电网500kV动态等值之后的交流系统模型,包括发电机、励磁机、调速器、电力系统稳定器、变压器、负荷以及输电线路等设备的模型,利用PSCAD/EMTDC自定义开发功能,用C语言开发了励磁系统自定义饱和模块。(Based on the data of the actual device Ningdong HVDC projects established comprising converter, converter transformers, DC filters, AC filter and reactive compensation devices, smoothing reactors and DC transmission line in PSCAD/EMTDC in the model and follow the typical control mode CIGRE HVDC system reference model, the establishment of a preliminary three HVDC control structure, and analyze the selection control logic PI link parameters: BPA-based simulation model component model and parameters in PSCAD/EMTDC established a dynamic equivalence Shandong power grid after the 500kV AC system model, including the model generator, exciter, governor, power system stabilizer, transformers, load and power transmission lines and other equipment, the use of PSCAD/EMTDC custom development capabilities, using C language to develop custom saturation block the excitation system.)
- 2015-06-04 10:15:17下载
- 积分：1
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LCD1602_4LINE
msp430 g2553 和四线制的lcd1602连接，非常适合g2系列的io少的芯片使用(the msp430 g2553 and the four-wire lcd1602 connection is ideal for G2 Series fewer chips use io)
- 2013-05-11 13:07:56下载
- 积分：1
