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PT2258-driver
6通道音量控制器,PT2258,驱动程序(6 channel fader PT2258 driver)
- 2017-02-04 04:06:56下载
- 积分:1
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LPC1114-IAP-RS485-Update
NXP LPC11xx 系列单片机IAP在线升级的研究。经过长时间的摸索,研究LPC1114 IAP在线升级,因此写下文档记录方便以后查阅,同时也给需要IAP在线升级的同仁提供参考。文档内容是实践过的,经过多次反复测试(NXP LPC11xx series MCU IAP online upgrade. LPC1114 IAP online upgrade after a long period of exploration, research, write a convenient documented after inspection, but also to the need to IAP online upgrade colleagues to provide a reference. Document content is practice, after repeated testing)
- 2013-04-16 17:33:28下载
- 积分:1
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zhiliudianliuyuan
本系统以直流电流源为核心,AT89S52单片机为主控制器,通过键盘来设置直流电源的输出电流,设置步进等级可达1mA,并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号,经过D/A转换器(AD7543)输出模拟量,再经过运算放大器隔离放大,控制输出功率管的基极,随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控,输出电流经过电流/电压转变后,通过A/D转换芯片,实时把模拟量转化为数据量,再经单片机分析处理, 通过数据形式的反馈环节,使电流更加稳定,这样构成稳定的压控电流源。实际测试结果表明,本系统输出电流稳定,不随负载和环境温度变化,并具有很高的精度,输出电流误差范围±5mA,输出电流可在20mA~2000mA范围内任意设定,因而可实际应用于需要高稳定度小功率恒流源的领域。(the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the )
- 2006-06-27 08:41:38下载
- 积分:1
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MP3
DIYMP3,能智能播放,很好的运用了STM32系统相关知识,花费了我将近半年的努力,基本上包含了STM32所有功能的应用。(DIYMP3, play to intelligence, very good use of the STM32 system related knowledge, it took me about half effort, basically contains all STM32 function application.)
- 2013-07-31 15:52:24下载
- 积分:1
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STM32 SPI双机通信
stm32f0使用spi实现主从通讯,可以实现主主机发送和从机发送(Stm32f0 uses SPI to realize master-slave communication, and can send and transmit the main host.)
- 2018-05-29 16:38:54下载
- 积分:1
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Mifare_Cryptanalysis_CRYPTO_1
The secret cipher that secures Mifare Classic RFID tags used in access control systems
- 2015-03-17 15:52:50下载
- 积分:1
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keyleduart
说明: 自己编写的一部分完整代码,是学习arm9的好工具,这个程序是针对s3c2440的。能够实现按键检测,led显示和串口的打印。(I have written part of the complete code, is a good tool for learning arm9, this program is for s3c2440' s. To achieve key detection, led display and print the serial port.)
- 2010-04-14 21:20:53下载
- 积分:1
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LED_BEEP
基于ok6410开发板的,led和蜂鸣器的,裸机测试程序。(Based on ok6410 development board, led and buzzer, bare metal test program.)
- 2014-10-11 16:43:04下载
- 积分:1
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ECG_fiter_qrs
基于STM32单片机的ECG心电滤波算法(filter for ecg)
- 2011-12-29 12:39:04下载
- 积分:1
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99oofem-2.0
这是一个关于有限元的C++程序代码,其中包括线性,非线性,扩展有限元模块,等几何有限元模块(This is a finite element of the C++ program code, including linear, nonlinear, extended finite element module, and other geometric finite element module)
- 2017-08-29 08:35:00下载
- 积分:1