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Drive 200条

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基于ISA总线的计算机与DSP的通信

在开放式数控系统结构模型的基础上，研究了基于ISA总线的DSP通信控制原理。采用中断方式完成了PC机和DSP之间的通信。介绍了以DriverWorks为工具开发ISA设备WDM驱动程序的方法，探讨了中断处理、驱动程序与应用程序之间的通信,简要说明了驱动程序的安装与调试。通过调试,系统设计运行稳定。 Abstract:  The ISA bus ...

/dl/29275.html

标签： ISA DSP 总线计算机

上传时间： 2013-11-04

上传用户：kang1923

基于8051F330的音频信号发生器的设计

 MMC/SD卡以其优越的性能，在单片机嵌入式设备中得到广泛应用。将MMC/SD卡作为外部掉电存储介质应用于音频信号发生器中，通过8051F330单片机上的SPI接口，实现单片机—MMC/SD卡的存储扩展，设计了此硬件平台上的MMC/SD卡的单片机驱动程序，并给出了相应的程序代码，满足音频信号发生器的大容量存储要求。 Abstract: ...

/dl/29309.html

标签： 8051F330 音频信号发生器

上传时间： 2014-12-27

上传用户：黄华强

基于DAC7512的数控直流恒流源设计

为了解决磁放大器性能测试过程中，需要对其供给不同数值恒定电流的问题，设计了一种基于DAC7512和单片机的数控恒流源系统。该系统采用AT89C51作为主控器件，将计算机发送的电流控制字命令转换为D/A转换器控制字，通过模拟SPI通信接口，写D/A控制字到DAC7512，从而控制其输出相应数字电压值，经差动缩放电路、电压/电路变换 ...

/dl/29315.html

标签： 7512 DAC 数控直流恒流源

上传时间： 2014-12-27

上传用户：invtnewer

PCF8578 LCD图形点阵液晶驱动器芯片简介及封装库

The PCF8578 is a low power CMOS1 LCD row and column driver, designed to drive dotmatrix graphic displays at multiplex rates of 1:8, 1:16, 1:24 or 1:32. The device has40 outputs, of which 24 are programmable and configurable for the following ratios ofrows/columns: 32¤8, 24¤16, 16¤24 or 8¤32. The ...

/dl/29361.html

标签： 8578 PCF LCD 图形点阵

上传时间： 2013-10-23

上传用户：顶得柱

PCA9534—带中断的低功耗8位I2C和SMBus IO口

The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, l ...

/dl/30569.html

标签： SMBus 9534 PCA I2C

上传时间： 2013-11-17

上传用户：vodssv

XL6003 300KHz 36V Boost 3W LED

The XL6003 regulator is fixed frequency PWM Boost (step-up) DC/DC converter, capable ofdriving 1050mA load current with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimu ...

/dl/30909.html

标签： Boost 6003 300 36V

上传时间： 2013-11-07

上传用户：xy@1314

PCA9534 8bit I2C bus and SMBus low power IO port with interru

The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O toleran ...

/dl/30982.html

标签： interru SMBus power 9534

上传时间： 2013-10-10

上传用户：inwins

PCA9535 PCA9535C 16bit I2C bus

The PCA9535 and PCA9535C are 24-pin CMOS devices that provide 16 bits of GeneralPurpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and wasdeveloped to enhance the NXP Semiconductors family of I2C-bus I/O expanders. Theimprovements include higher drive capability, 5 V I/O t ...

/dl/30985.html

标签： 9535 PCA 9535C I2C

上传时间： 2013-10-21

上传用户：爱死爱死

PCA9555 16bit I2C-bus and SMBu

The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvementsinclude higher drive capability, 5 V I/O tolerance, lo ...

/dl/31013.html

标签： C-bus 9555 SMBu PCA

上传时间： 2013-11-13

上传用户：fredguo

PCA9670 Remote 8-bit IO expand

The PCA9670 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plusfamily.The PCA9670 is a drop-in upgrade for the PCF8574 providing higher Fast-mode Plus(Fm+) I2C-bus speeds (1 MHz versus 400 kHz ...

/dl/31015.html

标签： Remote expand 9670 PCA

上传时间： 2013-10-15

上传用户：stella2015

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Drive 200条

按分类查找:

基于ISA总线的计算机与DSP的通信

基于8051F330的音频信号发生器的设计

基于DAC7512的数控直流恒流源设计

PCF8578 LCD图形点阵液晶驱动器芯片简介及封装库

PCA9534—带中断的低功耗8位I2C和SMBus IO口

XL6003 300KHz 36V Boost 3W LED

PCA9534 8bit I2C bus and SMBus low power IO port with interru

PCA9535 PCA9535C 16bit I2C bus

PCA9555 16bit I2C-bus and SMBu

PCA9670 Remote 8-bit IO expand

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