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Read_SD_MMC
- 单片机通过SPI读写SD卡.使用5v系统操作3.3V的sd卡.很有借鉴价值-SCM SPI literacy through SD cards. 5v use of the system 3.3V sd card. Very valuable reference
MSP430F149_PS2_keyboard_SN74LVC4245
- 本程序使用MSP430F149驱动PS2接口的PC键盘,使用了SN74LVC4245用作电平转换;PS2 端口使用了标准的六芯插座,可以接收来自标准键盘、鼠标的数据。由于键盘、鼠标都是 5V 供电系统,而 MSP430F149 只能工作在 3.3V,所以需要在两者之间进行电平转换。根据键盘的工作原理,MCU只要接收键盘发送过来的时钟信号和数据信号,然后对数据信号进行解码就可以了。为此我们利用了电平转换电路的两根数据线,让键盘的时钟线 CLK 连接SN74LVC4245 的A8 端口,键盘的数据线
DigitalVoltageMeter
- 这是一个用MSP430单片机设计的基于FYD12864LCD的数字电压表的C程序。系统主要实现对电压的测量。其中,ADC采用MSP430149单片机内部自带的12位AD转换器。输入信号的最大值为+2.5V,你也可以选择其他参考源,使输入信号最大可达+3.3V。-This is a single-chip design using MSP430-based digital voltage meter FYD12864LCD the C program. System is mainly to ac
4004_18b20
- 51程序 包含语音4004 温度传感器18b20模块并在数码管显示 ISD4004录放学习模块采用ISD4004-16M的芯片,供电采用AMS1117-3.3V,可以单片机的IO口直接联系,电源输入为5V,带有MIC话筒输入和音频线输入电路,输出部分采用LM386作为声音放大,可以直接驱动8欧,4W左右的喇叭,音质不错 -4004 contains 51 voice 18b20 module temperature sensor and display in the digita
CRL
- msp430系列单片机驱动盘PS/2接口的电平转化资料。 因为前者是3.3V电平,后者是5V电平。-msp430 MCUs drive disk PS/2 interface into information level. Because the former is the 3.3V level, which is the 5V level.
5VMCUjie33Vyejingping
- 5V的MCU接3.3V的液晶屏,很详细的设计了两者之间在液晶屏的电路图。-5V, 3.3V MCU then the LCD screen, it is between the detailed design of the circuit in the LCD screen.
3.3V-5Vconnect
- 3V和5V互连技术,主要以例子介绍说明3.3V系统和5V系统的接口连接,对系统硬件设计有参考价值-3V and 5V interconnect technology, introducing examples of descr iption mainly 3.3V and 5V system, the system interface, hardware design of the reference value
5385126
- 这份资料价值极高,主要是关于DP/PA耦合器的一种新的开发方法,对于软件编程、单片机及总线知识要求很高,不管怎样这样的资料网上极少,是从IEEE辛苦找到的。-The foreign DP/PA coupler is realized by SIM1+ MCU chip,with a large number of procedures and codes completed by the software, which is very complicated, and technol
lm2576
- 降压电源 The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation. These devices are avai
3V-5V
- 3~5V典型电路,很有用的。希望对刚起步的大家有一定的帮助。-3 ~ 5V typical circuit, very useful. We just want to start with some help.
Text1
- 51单片机TFT程序,很好用,本人亲测!最好用3.3v的51单片机,5v也可以!-51 program
3V-5V
- 我们对处理速度的需求日益增长,伴随着这种增长,用来构建单片机的晶体管尺寸则在持续减小。以更低的成本实现更高的集成度,也促进了对更小的几何尺寸的需求。随着尺寸的减小,晶体管击穿电压变得更低,最终,当击穿电压低于电源电压时,就要求减小电源电压。因此,随着速度的提高和复杂程度的上升,对于高密度器件而言,不可避免的后果就是电源电压将从5V降至3.3V,甚至1.8V。 Microchip 单片机的速度和复杂性已经到达足以要求降低电源电压的程度,并正在向5V 电源电压以下转换。但问题是绝大多数接口电路仍
3.3V-to-5V
- 本文详细讲解了各种电路中3.3V转5V所需的技巧。-This paper explains the various circuits related to 3.3V to 5V transfer the necessary skills.
3.3V-5V
- 3.3V电压与5V电压的接口技术,资料详细了实现的多种方法-Voltage at 3.3V and 5V interface technology, detailed information on a variety of methods to achieve
useful-voltage-3.3v--5v--circuit
- 3.3v 5v 电平的转化方案,电子系统中经常会碰到的问题, 这些是我整理的一些资料。-3.3v 5v level conversion program, electronic systems often encounter problems, these are my finishing some items.
3.3--5V
- msp430单片机可用的3.3V和5V电平装换程序,适合于新手学习和使用-msp430 microcontroller available for 3.3V and 5V power paperback procedures, suitable for beginners to learn and use
3.3--5V
- 这个源码可用于Ti公司生产的单片机的F149系列,实现开发板中5V电源和3V之间转换电路的设计与应用-This source can be used for Ti produced SCM F149 series, to achieve development board 5V and 3V power converter circuit between the design and application of
BUJINDANJIJIEXIAN
- MSP430G2553 智能小车 步进电机 2B 2A 1B 1A IAR 5V电压 3.3v电压-MSP430G2553 smart car stepping motor 2B 2A 1B 1A IAR 5V 3.3V voltage
STM32f407-ATK-HC05-biuetooth
- 探索者STM32F4开发板,学习ATK-HC05蓝牙串口模块的使用,实现蓝牙串口通信-STM32F4——ATK-HC05——Bluetooth STM3 >ATK-HC05 PB10 >RXD PB11 >TXD PF6 >KEY PC0 >LED GND >GND 5V/3.3V >VCC