摘要：
STM32 F4 SPI Accelerometer
阅读全文
posted @ 2015-09-08 23:11
IAmAProgrammer
阅读(391)
推荐(0)
摘要：
STM32 F4 GPIO ModesGoal:creating a visual summary of GPIO configuration modes.The summary at the bottom shows the major configuration choices.Basic el...
阅读全文
posted @ 2015-09-08 23:10
IAmAProgrammer
阅读(625)
推荐(0)
摘要：
PWM实现ADC和DAC一、PWM实现AD 利用普通单片机的2个IO及一个运算放大器即可实现AD转换电路，而且很容易扩展成多通道。其占用资源少，成本低，AD 转换精度可以达到8位甚至更高，因此具有一定的实用价值。1.1 硬件电路说明图一中“RA0”和“RA1”为单片机的两个I/O脚，分别将其设置为输...
阅读全文
posted @ 2015-09-08 22:21
IAmAProgrammer
阅读(2375)
推荐(0)
摘要：
DELPHI - How to use opendialog1 for choosing a folder?On Vista and up you can show a more modern looking dialog usingTFileOpenDialog.var OpenDialog: ...
阅读全文
posted @ 2015-09-08 12:11
IAmAProgrammer
阅读(8746)
推荐(0)
摘要：
Timers get their clock source from External pins or Internal timer sources.ExternalExternal = pins: TI1 or TI2 or ETRset pin to be used:in TIMx_CCMR1 ...
阅读全文
posted @ 2015-09-08 12:03
IAmAProgrammer
阅读(10280)
推荐(0)
摘要：
How do you generate complementary PWM Outputs?I would like to generate complementary PWM Outputs with adjustable dead time.According to the STM32F401R...
阅读全文
posted @ 2015-09-08 08:56
IAmAProgrammer
阅读(1854)
推荐(0)
摘要：
How to add Leading Zeroes to a Number (Delphi Format)Here's how convert (an integer) number to a string by adding an amount of leading zeroes.Suppose ...
阅读全文
posted @ 2015-09-07 19:48
IAmAProgrammer
阅读(402)
推荐(0)
摘要：
.rdata is for const data. It is the read only version of the .data segment..idata holds the import directory (.edata for exports).It is used by EXE's ...
阅读全文
posted @ 2015-09-07 11:59
IAmAProgrammer
阅读(1147)
推荐(0)
posted @ 2015-09-07 10:34
IAmAProgrammer
阅读(523)
推荐(0)
posted @ 2015-09-07 10:31
IAmAProgrammer
阅读(563)
推荐(0)
摘要：
How to detect the types of executable filestype { IMAGE_DOS_HEADER: DOS .EXE header. } IMAGE_DOS_HEADER = packed record e_magic : Word; ...
阅读全文
posted @ 2015-09-07 00:06
IAmAProgrammer
阅读(599)
推荐(0)
摘要：
Dynamic-Link Library RedirectionApplications can depend on a specific version of a shared DLL and start to fail if another application is installed wi...
阅读全文
posted @ 2015-09-06 21:19
IAmAProgrammer
阅读(365)
推荐(0)
摘要：
"J-Link / Flasher Portable V1 ""J-Link ARM / Flasher ARM V2 ""J-Link ARM / Flasher ARM V3 ""J-Link ARM / Flasher ARM V4 ""J-Link ARM Lite V8 ""J-Link ...
阅读全文
posted @ 2015-09-06 18:13
IAmAProgrammer
阅读(1344)
推荐(0)
摘要：
此图非常详细，可以看到每个字段的内容和大概含义，根据此图动手实践了PE文件结构，下面给出我自己理解的简约结构：为了更加形象生动，特把实验过程记录如下，从实验过程中我们可以发现不小细节：使用一个简单的PE文件举例，下图是PE文件概要信息：图中没有列出DOS头信息，直接跳到了NT头的Image_File...
阅读全文
posted @ 2015-09-06 17:35
IAmAProgrammer
阅读(2209)
推荐(0)
摘要：
Analyze PE file headers?{ You'll need a OpenDialog to open a Exe-File and a Memo to show the file informations }{ Man braucht einen OpenDialog um ein...
阅读全文
posted @ 2015-09-06 17:26
IAmAProgrammer
阅读(589)
推荐(0)
摘要：
How to tell if a file is an EXE or a DLL? 1 void DumpFile(LPWSTR filename) 2 { 3 HANDLE hFile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ...
阅读全文
posted @ 2015-09-06 17:24
IAmAProgrammer
阅读(623)
推荐(0)
posted @ 2015-09-06 17:21
IAmAProgrammer
阅读(477)
推荐(0)
摘要：
Malware Analysis Tutorial 8: PE Header and Export Table2. Background Information of PE HeaderAny binary executable file (no matter on Unix or Windows)...
阅读全文
posted @ 2015-09-06 14:28
IAmAProgrammer
阅读(8060)
推荐(0)
摘要：
Signature Creator for NXP Cortex-M DevicesAlgorithm for creating the checksumThe reserved Cortex-M3 exception vector location 7 (offset 0x001C in the ...
阅读全文
posted @ 2015-09-06 14:12
IAmAProgrammer
阅读(1730)
推荐(0)
摘要：
Reverse Voltage ProtectionI've long wanted to pull together some reverse polarity protection ideas in one place. Many are found individually on the we...
阅读全文
posted @ 2015-09-05 16:12
IAmAProgrammer
阅读(1900)
推荐(0)
摘要：
LDO RegulatorHigh accuracy voltage regulatorVout = 2.5V * (1 + ( 5.6 / 6.8 ) ) = 4.55VRecently the author had to adapt a standard circuit configuratio...
阅读全文
posted @ 2015-09-05 12:19
IAmAProgrammer
阅读(10328)
推荐(0)
摘要：
TVS二极管和稳压二极管的区别TVS管超过它的耐压值后，会瞬间导通短路，反应速度在ns级，而稳压管是稳压作用的，超过它的稳压值，只要功率不超过它的耐受值，就会稳定在它的稳压值范围内。TVS是瞬态抑制二极管，主要是用来抑制瞬时电压尖峰，减少尖峰电压对元器件的损耗。稳压二极管主要是稳压的作用。双向击穿二...
阅读全文
posted @ 2015-09-05 10:58
IAmAProgrammer
阅读(10376)
推荐(0)
摘要：
Project 03- STM32F4xx PID controllerCMSIS files from ARM provides ARM Math functions.There are also PID controller functions in different formats forf...
阅读全文
posted @ 2015-09-04 18:47
IAmAProgrammer
阅读(4442)
推荐(0)
摘要：
基于运算放大器的线性稳压器基于运算放大器的线性稳压器为什么DIY？原因有二，第一是市面上的三端稳压器不满足要求，要么性能不好，要么功率不够。第二，市面上也有一枝独秀，性能优异的稳压器，不过它们价格不菲，譬如凌力尔特的LT1581,13美元/片，购买一堆元器件了。或者它们封装独特，不能和普通的三端IC...
阅读全文
posted @ 2015-09-04 18:28
IAmAProgrammer
阅读(6664)
推荐(0)
摘要：
SIMATIC PID温度控制// VAR_INPUT -------------------------------------------------------------------#ifndef TRUE#define TRUE 0x01#endif#ifndef FALSE#define...
阅读全文
posted @ 2015-09-04 18:22
IAmAProgrammer
阅读(2159)
推荐(1)
摘要：
采用运放构成的串联稳压电源及可调恒流源电路图集成运算放大器具有开环增益高和输出阻抗低等特点，用它做稳压电源中的比较放大器是很理想的。图1-34所示，由稳压管VDw提供的12V基准电压通过电位器RP加到运放A1的同相输入端，稳压电源的输出电压Vsc又反馈到A1的反相输入端，当Vsc发生变化时，它与同相...
阅读全文
posted @ 2015-09-04 18:06
IAmAProgrammer
阅读(6034)
推荐(0)
摘要：
一台数控恒流恒压电源的制作直流稳压电源是任何电子电路试验中不可缺少的基础仪器设备，基本在所有的跟电有关的实验室都可以见到。对于一个电子爱好者来说，直流稳压电源也是必不可少的。要得到一个电源，一般有两种方法：一是购买一台成品电源，这样最为省事：二是自己制作一台电源（因为你是电子爱好者），当然相比于第一...
阅读全文
posted @ 2015-09-04 17:28
IAmAProgrammer
阅读(13301)
推荐(1)
摘要：
Driving proportional valves from microcontrollerI am looking to drive a current regulated proportional (solenoid) valve that needs up to 85mA @ 24V fr...
阅读全文
posted @ 2015-09-04 16:09
IAmAProgrammer
阅读(897)
推荐(0)
posted @ 2015-09-04 16:06
IAmAProgrammer
阅读(262)
推荐(0)
摘要：
LDO current regulator for power LEDChallengeYou've got a power LED? Great! Build a flash light!What does the spec say? "Voltage: 3.6 .. 3.8 V, power 3...
阅读全文
posted @ 2015-09-04 16:05
IAmAProgrammer
阅读(666)
推荐(0)
摘要：
High accuracy voltage regulatorGood morning everybody,I want to make a accurate voltage regulator based on the Basic Stamp.Total range 0-10 V and a re...
阅读全文
posted @ 2015-09-04 16:02
IAmAProgrammer
阅读(721)
推荐(0)
摘要：
An Isolated DAC Using PWM OutputArduino‘s (ATmega328P) PWM outputs viaanalogWritecan be conveniently turned into analog voltage levels through the use...
阅读全文
posted @ 2015-09-04 15:55
IAmAProgrammer
阅读(1161)
推荐(0)
摘要：
Programmed Adjustable PowerI just explored an easy scheme to design a high precision programmed adjustable power.In this scheme, there is no needs to ...
阅读全文
posted @ 2015-09-04 15:50
IAmAProgrammer
阅读(1237)
推荐(0)
摘要：
1、电感和磁珠都可以用于滤波，但是机理不一样。电感滤波是将电能转化为磁能，磁能将通过两种方式影响电路：一种方式是重新转换回电能，表现为噪声；一种方式是向外部辐射，表现为EMI（电磁干扰）。而磁珠是将电能转换为热能，不会对电路构成二次干扰。2、电感在低频段滤波性能较好，但在50MHz以上的频段滤波性能...
阅读全文
posted @ 2015-09-04 12:14
IAmAProgrammer
阅读(13623)
推荐(2)
摘要：
MCU的启动方式有很多种：UART接口，扩展的静态存储单元（NOR Flash），SPI Flash，quad SPI Flash，高速USB0和USB1.另外可以通过对OTP存储单元的编程。首先看下内存映射：在MCU复位之后，ARM处理器将会从ROM区域执行代码。LPC43XX包含一个隐藏指针允许...
阅读全文
posted @ 2015-09-02 18:52
IAmAProgrammer
阅读(1808)
推荐(0)
摘要：
简介本页提供了一些使用LPC43xx器件双核特性的基本信息。此页面上的信息和专题使用Keil uVision4工具，以双核工程的使用来演示。该工程初始化两个内核以运行FreeRTOS，并采用三色LED指示M0和M4内核的运行，以及双核处理器之间的通信。该项目把重点放在双核工程的细节上，力求基础和简单...
阅读全文
posted @ 2015-09-02 17:51
IAmAProgrammer
阅读(1879)
推荐(0)
摘要：
LPC1800 Series microcontrollersAt 180 MHz, LPC1800 Series microcontrollers combine the industry's fastest ARM Cortex-M3 corewith multiple high-speed c...
阅读全文
posted @ 2015-09-02 17:42
IAmAProgrammer
阅读(822)
推荐(0)
摘要：
KTAG K-TAG ECU Programming Tool Master Version V2.1 +J-Link JLINK Without Token LimitationHighlights of KTAG ECU Programming+J-link:1. Software Versio...
阅读全文
posted @ 2015-09-02 14:33
IAmAProgrammer
阅读(6173)
推荐(0)
摘要：
The TAP controller is a synchronous finite state machine that respondsto changes at the TMS and TCK signals of the TAP and controls the sequence of op...
阅读全文
posted @ 2015-09-01 21:28
IAmAProgrammer
阅读(1549)
推荐(0)
摘要：
What does this tool do?The LPC18xx/43xx DFUSec utility is a Windows PC tool that provides support functions for LPC18xx/43xx microcontroller via USB. ...
阅读全文
posted @ 2015-09-01 17:18
IAmAProgrammer
阅读(3124)
推荐(0)
浙公网安备 33010602011771号