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Description: 介绍一种使用MAX7219实现时钟显示的设计。设计主要由软硬件组成。软件方面，主要针对串行发送、计时中断程序进行编制，实现了串行传输技术的时钟显示。硬件方面，基于MAX7219，采用可在线编程的AT89S51芯片为时钟的CPU，并采用高集成化的串行输入，输出共阴极显示驱动器MAX7219为时钟LED的驱动器。使用串行传输技术大大节省了CPU的IO口，为CPU其他功能的扩展提供了端口-Describes a display using the MAX7219 to achieve the design of the clock. Formed mainly by the hardware and software design. Software, mainly for serial transmission, timing interrupt the program for the preparation, transmission technology to achieve a serial clock display. Hardware, based on the MAX7219, the use of online programming AT89S51 chip to clock the CPU, and high integration of the serial input and output common-cathode display driver MAX7219 LED drive for the clock. Use serial transmission technology saves the CPU IO port, the CPU provides the other functions of the expansion port
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Size: 174080 |
Author: lyuhu |
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Description: 595led简单的驱动应用，IO口模拟 IO口模拟-595led simple drive applications
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Size: 1024 |
Author: 安安 |
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Description: 52单片机驱动12864，自带字库，书写注释详细 ，采用串行通信，节省IO口 -12864 comes with 52 single-chip drive to write more detailed notes font
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Size: 34816 |
Author: 鞠明泽 |
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Description: Abstract—Many portable systems deploy operating systems
(OS) to support versatile functionality and to manage resources,
including power. This paper presents a new approach for using OS
to reduce the power consumption of IO devices in teractive systems.
Low-power OS observes the relationship between hardware
devices and processes. The OS kernel estimates the utilization
of a device from each process. If a device is not used by any
running process, the OS puts it into a low-power state. This paper
also explains how scheduling can facilitate power management.
When processes are properly scheduled, power reduction can
be achieved without degrading performance. We implemented a
prototype on Linux to control two devices experimental results
showed nearly 70 power saving on a network card and a hard
disk drive-Abstract—Many portable systems deploy operating systems
(OS) to support versatile functionality and to manage resources,
including power. This paper presents a new approach for using OS
to reduce the power consumption of IO devices in interactive systems.
Low-power OS observes the relationship between hardware
devices and processes. The OS kernel estimates the utilization
of a device from each process. If a device is not used by any
running process, the OS puts it into a low-power state. This paper
also explains how scheduling can facilitate power management.
When processes are properly scheduled, power reduction can
be achieved without degrading performance. We implemented a
prototype on Linux to control two devices experimental results
showed nearly 70 power saving on a network card and a hard
disk drive
Platform: |
Size: 258048 |
Author: bahar |
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Description: plx9054驱动：DriverWorks实现对PCI9054 BAR0，BAR2的数据写入，读出。读写方式是Direct IO方式-plx9054 drive: DriverWorks achieve PCI9054 BAR0, BAR2 data is written to, read. Method is Direct IO methods to read and write
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Size: 3366912 |
Author: 金霖 |
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Description: 这是linux下步进电机的驱动程序（分别适合与电机连接到IO口与连接到中断或总线的情况），并分别附有相应的上层应用程序，可以用来测试驱动。-This is under linux stepper motor driver (for, respectively, with the motor connected to the IO port and interrupt or bus connection to the case), respectively, with corresponding upper application, can be used to test the drive.
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Size: 5120 |
Author: 左锋 |
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Description: STM32，通过STM32普通的IO口来驱动LCD显示-STM32, STM32 normal through the IO port to drive the LCD display
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Size: 645120 |
Author: 丁锦章 |
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Description: 138译码器编制的流水灯，通过编译BCD码来控制IO的驱动方式，从而控制流水灯的显示！-The 138 decoder system water lights, compile BCD code to control the IO drive mode, so as to control water lights display!
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Size: 9216 |
Author: 周奇 |
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Description: 实现驱动s3c2410的两个io口和三个按钮的驱动,对于学习arm板的帮助很大。-Can drive the two IO s3c2410 mouth and three button driver, to study the arm board a great help.
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Size: 3072 |
Author: 小明 |
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Description: STM32普通IO驱动程序，能直接驱动STM32普通IO，使用STM32库函数-STM32 general IO drivers can directly drive the STM32 normal IO, using the STM32 library functions
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Size: 896000 |
Author: xiaoka |
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Description: 使用stm32芯片驱动超声波传感器，有串口得到数据，有命令IO口读取-Use stm32 chip drive ultrasonic sensors
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Size: 3020800 |
Author: scott |
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Description: 用ULN2803驱动步进电机，两路IO口加7414，用单片机定时器来细分-Using ULN2803 to drive the stepper motor, two IO and 7414, MCU timer to subdivision
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Size: 1024 |
Author: lzq |
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Description: MSP430F149输出PWM波形驱动LED闪烁，内有IO引脚说明-The MSP430F149 output PWM waveform drive LED flashes, IO Pin Description
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Size: 17408 |
Author: 李展宇 |
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Description: stc串口通过74LS164扩展成串行输入并行输出的IO驱4线制动步进电机-STC serial port by74LS164expanded into the serial input parallel output IO drive 4stepper motor braking
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Size: 12288 |
Author: 王均 |
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Description: 驱动IC： SN8P2501B
测试对象： FTC334S
显示芯片：TM1628
FTC334S触控按键优点： 在不增加IO口线的基础上就可以将按键改成触摸按键，方便已经成功量产的产品更换成触控按键方式
本程式介绍： TM1628和FTC334S共用三根IO口线使用互不干扰，单片机上电后设FTC334S工作参数，成功后转入主循环，每隔10MS读取一按键状态，连续三次读到同样的按键将键值通过TM1628的1位数码管显示出来，并将读到的FTC334S的灵敏度值一直显示于另一位数码管上，每次有按键并启动一次蜂鸣器。-Drive IC: SN8P2501B
Test object: FTC334S
Display chip: TM1628
FTC334S touch buttons advantages: without any increase in IO mouth line on the foundation to touch buttons can be key, convenient has been successful in mass production product change into touch buttons way
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Size: 3072 |
Author: king |
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Description: 步进电机精确控制论文，单片机SPCE061A对步进电机进行控制，通过IO口输出的具有时序的方波作为步进电机的控制信号，信号经过芯片L298N驱动步进电机-Stepper motor control precision paper, the microcontroller SPCE061A of the stepper motor control, and square wave output through IO port timing as stepper motor control signal, the signal after chip L298N drive a stepper motor
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Size: 48128 |
Author: 欧阳 |
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Description: 测试STM8S105K4的基本功能，包括工作在8M模式下，定时器2计时，IO驱动LED-The test STM8S105K4 features, including work in 8M mode, timer 2 timing, IO drive LED
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Size: 5120 |
Author: xuwenbo |
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Description: stm32 的12860串行程序 只需要两根数据线就能用stm32驱动12864 节省了io-the stm32 12860 serial program only two data lines will be able to stm32 drive save the io 12864
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Size: 1868800 |
Author: 方凯 |
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Description: 整合了网上所有段式液晶单片机io直接驱动的方法，对学习及工作非常有帮助，里面有源代码，原理图等-Integrated online direct drive segment LCD microcontroller io very helpful in learning and work inside the source code, schematics, etc.
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Size: 13407232 |
Author: zhudeng |
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Description: 用51控制74hc164驱动八位八段数码管节省io口-51 74 hc164 drive control with digital tube
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Size: 1024 |
Author: zcl |
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