搜索：ExtENSION - 虫虫下载站

压缩解压  thank you very muchn it is a SC32440 extension board

thank you very muchn it is a SC32440 extension board

https://www.eeworm.com/dl/617/492153.html

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其他  this file is a tcl extension

this file is a tcl extension

https://www.eeworm.com/dl/534/493162.html

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单片机编程  单片机P0口的片外数据存储器扩展

单片机作为一种微型计算机，其内部具有一定的存储单元（8031除外），但由于其内部存储单元及端口有限，很多情况下难以满足实际需求。为此介绍一种新的扩展方法，将数据线与地址线合并使用，通过软件控制的方法实现数据线与地址线功能的分时转换，数据线不仅用于传送数据信号，还可作为地址线、控制线，用于传送地址信号和控 ...

https://www.eeworm.com/dl/502/29174.html

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单片机编程  基于8051F330的音频信号发生器的设计

&nbsp;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: ...

https://www.eeworm.com/dl/502/29309.html

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单片机编程  基于MPC555与CS8900A的以太网扩展设计

&nbsp; &nbsp;介绍了MPC555与CS8900A扩展以太网的硬件设计图。以NUCLUES PLUS操作系统为基础，介绍了网卡软件驱动程序的编制，给出了以太网协议包嵌入NUCLEUS PLUS操作系统的实现方法。 Abstract: &nbsp;The Ethernet extension hardware design of MPC555 and CS8900A are introduced,and the software driven program ...

https://www.eeworm.com/dl/502/29326.html

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单片机编程  PCA9516 5channel I2C hub

The PCA9516 is a BiCMOS integrated circuit intended forapplication in I2C and SMBus systems.While retaining all the operating modes and features of the I2Csystem, it permits extension of the I2C-bus by buffering both the data(SDA) and the clock (SCL) lines, thus enabling five buses of 400 pF.The I2C ...

https://www.eeworm.com/dl/502/30984.html

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单片机编程  PCA9517 Level translating I2C-

The PCA9517 is a CMOS integrated circuit that provides level shifting between lowvoltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) I2C-bus or SMBus applications.While retaining all the operating modes and features of the I2C-bus system during thelevel shifts, it also permits extension of t ...

https://www.eeworm.com/dl/502/30990.html

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单片机编程  PCA9518 Expandable 5channel I2

The PCA9518 is a BiCMOS integrated circuit intended forapplication in I2C and SMBus systems.While retaining all the operating modes and features of the I2Csystem, it permits extension of the I2C-bus by buffering both thedata (SDA) and the clock (SCL) lines, thus enabling virtuallyunlimited buses of ...

https://www.eeworm.com/dl/502/30996.html

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单片机编程  PCA9519 4channel level transla

The PCA9519 is a 4-channel level translating I2C-bus/SMBus repeater that enables theprocessor low voltage 2-wire serial bus to interface with standard I2C-bus or SMBus I/O.While retaining all the operating modes and features of the I2C-bus system during thelevel shifts, it also permits extension of ...

https://www.eeworm.com/dl/502/31002.html

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通信网络  基于码本映射的语音带宽扩展算法研究

在现代通信系统中，电话语音的频带被限制在300 Hz～4 kHz的范围内，带来了语音可懂度和自然度的降低。为了在不增加额外成本的前提下提高语音的可懂度和自然度，进行了电话语音频带扩展的研究。提出了一种改进的基于码本映射的语音带宽扩展算法：在码本映射的过程中，使用加权系数来得到映射码本。客观测试结果表明，用此算 ...

https://www.eeworm.com/dl/564/33807.html

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