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Description: 利用Philips公司LPC系列单片机的一些特殊功能,在不外加元件的情况下,定制了一片高性能的LED显示驱动器芯片。分析了通用4位7段LED显示驱动器芯片的定制方法与6位“米”字段LED显示驱动器芯片的定制方法,并介绍了LED显示驱动软件编程方法。-use Philips LPC Series MCU some special functions, additional components in the circumstances, a customized high-performance LED display driver chip. Analysis of the common four of the seven LED display driver chip custom methods and six "m" field LED Display Drivers Custom chips, and introduced the LED display driver software programming method.
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Size: 45186 |
Author: 胡亚军 |
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Description: 利用Philips公司LPC系列单片机的一些特殊功能,在不外加元件的情况下,定制了一片高性能的LED显示驱动器芯片。分析了通用4位7段LED显示驱动器芯片的定制方法与6位“米”字段LED显示驱动器芯片的定制方法,并介绍了LED显示驱动软件编程方法。-use Philips LPC Series MCU some special functions, additional components in the circumstances, a customized high-performance LED display driver chip. Analysis of the common four of the seven LED display driver chip custom methods and six "m" field LED Display Drivers Custom chips, and introduced the LED display driver software programming method.
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Size: 45056 |
Author: 胡亚军 |
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Description: 以LPC2194为平台开发的整车ECU控制器程序，集成SPI，Can通讯，AD，I/O控制等功能。具有产品级的性能。-LPC2194 as a platform to develop procedures for the vehicle ECU controller, integrated SPI, Can communication, AD, I/O control functions. With product-level performance.
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Size: 281600 |
Author: bb |
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Description: ATmage32 + microchip的enc28j60实现web server的解决方案，比lpc2132之类的arm7方案可靠，但是性能会低，如果用在数据处理量很小的领域，AVR的芯片比LPC ARM7的要稳定。压缩包有源代码和电路板原理图，因为AVR单片机不限简单，没必要提供PCB，需要的朋友看一下压缩包里面PDF格式的PCB图就可以参考各种外围器件的选用了。
-ATmage32+ Microchip to achieve enc28j60 the web server solution, than the lpc2132 like ARM7 program reliable, but the performance will be lower, if the volume of data processing used in very small areas, AVR chips than to the stability of the LPC ARM7. Compressed source code package and circuit board schematics, as open-AVR Singlechip simple, no need to provide the PCB, the need for friends to look at compressed package inside PDF format on the PCB diagram can refer to a variety of peripheral devices selected.
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Size: 568320 |
Author: 蔡明 |
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Description: AbS-LPC is better compression performance can be obtained by careful design of
LPC filter-AbS-LPC is better compression performance can be obtained by careful design of LPC filter
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Size: 212992 |
Author: 黄豈荣 |
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Description: 基于LPC系列arm的uCOS-II高效代码移植版本-LPC-based arm of the series uCOS-II high-performance version of the code migration
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Size: 8192 |
Author: wangzhen |
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Description: 本文提出了一种利用MBE 模型改进的低速率LPC 语音编码算法文中介绍了该算法
的参数提取量化编码及语音合成的具体方案并用C 语言构造了一个基于该算法的速率
为1.6kb/s 的语音编码/解码系统主观测听表明该系统性能与2.4kb/s 的MELP 算法接近
或相当-In this paper, a LPC algorithm in low bit rate speech coding improved by MBE model
is presented. The detailed schemes of parameter extraction, quantization, coding, and speech
synthesis are introduced. In addition, a 1.6kb/s speech coding/decoding system based on this
algorithm is constructed with language C. By subjective evaluation, it is concluded that the
performance of this system approaches or corresponds to that of 2.4kb/s MELP algorithm.
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Size: 451584 |
Author: lu |
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Description: In this paper the analysis of the compression process was performed by comparing the compressed signal against the original signal. To do this the most powerful speech analysis and compression techniques such as Linear Predictive Coding (LPC) and Discrete Wavelet Transform (DWT) was implemented using MATLAB. Here nine samples of spoken words are collected from different speakers and are used for implementation. The results obtained from LPC were compared with other compression technique called Discrete Wavelet Transform. Finally the results were evaluated in terms of compressed ratio (CR), Peak signal-to-noise ratio (PSNR) and Normalized root-mean square error (NRMSE).The result shows that DWT performance was better for these samples than the LPC method.
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Size: 147456 |
Author: Ambika |
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Description: 基于PCI总线和LPC接口的POST主板诊断卡代码，已经通过fpga测试可以使用，性能非常稳定。-Based on the PCI bus and LPC POST motherboard diagnostic card code to interface fpga has passed the test can be used, the performance is very stable.
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Size: 751616 |
Author: wanglong |
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