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基于ARM核的单电源心电检测模块的实现
张超
随着心电图技术的临床应用和电子技术的发展,心电图作为生物医学测量中一项较成熟、应用较广泛的技术,已逐渐成为一种常规临床检查的手段,并在心脏疾病的诊断、监护以及药效分析等方面发挥着十分重要的作用。目前常用的心电检测电路多为双电源供电,这种方案需要很多的电源器件和较大面积的布局布线,而这些都将增加产品的成本。 本文给出的设计采用单电源供电,可以解决上述问题并降低产品成本,同时该设计还在基于ARM核的嵌入式系统中采用了简单实用的算法…
May 20, 2014
替代8位MCU,Cortex-M3成最强杀手锏?【转】
张超
[导读] 张园根先生以Silicon Labs公司已获成功的Precision32混合信号MCU全系列产品(包括适用于USB应用的SiM3Uxxx系列、适用于非USB应用的 SiM3Cxxx系列、适用于超低功耗应用的SiM3Lxxx系列)为例,分析了Cortex-M3 MCU在工控仪表、智能家居、便携医疗、物联网无线终端、电脑外设等市场如何开辟差异化的8位替代之路。前阵子,MCU市场“噩耗”频频传出…
May 20, 2014
AMD北京APU14技术创新大会披露其ARM路线
wangyong
AMD 15日在北京召开APU14技术创新大会,正式对大中华市场客户及合作伙伴宣布,AMD及ARM将针对PC、服务器、嵌入式系统等市场联手合作,希望透过运算架构的改变,扩大在笔电、嵌入式、服务器等市场打击面,并争取到更大的市占率。AMD下半年将针对Ultrabook、平板、二合一装置等市场推出Beema及Mullins两款APU,除最多将支援四核心Puma+运算核心、次世代图形架构(GCN)Radeon…
May 19, 2014
Tutorial on OMA Lightweight M2M
Pratul Sharma
OMA Lightweight M2M protocol is a device management protocol developed by Open Mobile Alliance. Technically, it is a communication protocol for use between client software on a M2M device and server software…
May 19, 2014
Mali Performance 3: Is EGL_BUFFER_PRESERVED a good thing?
Peter Harris
Previous blog in the series:
Mali Performance 2: How to Correctly Handle Framebuffers
This week I'm finishing off my slight diversion into the land of application framebuffer management with an analysis…
May 16, 2014
mbed Smart Lighting Demo with code examples
C Sonsino
I attended Cable Show 2014 where I presented a demo that integrated several smart light devices with an interactive television application. In this post I'll give an overview of the demo system.
May 15, 2014
Mali 新技术减少重复渲染
Vincent Zhai
原文地址:
Killing Pixels - A New Optimization for Shading on ARM Mali GPUs
消除像素 - ARM Mali GPU 上着色优化新方式
发帖人
Sean Ellis
于
2013 年 8 月 8 日 21:46:16 在 ARM Mali Graphics
不可见像素代价昂贵给像素着色开销巨大,所以你一定不想花费时间和精力去给屏幕上那些不会真正出现的像素着色…
May 15, 2014
中文社区月度精华汇总(2014年5月14日)
Song Bin 宋斌
各位ARM互联社区上的中文用户大家好,我是ARM互联社区的中国管理员
songbin
.5月份的上海已经开始逐渐热起来了,不知道您所在的地方气候变化如何? 希望大家都能减肥成功, 版主我也要加油。月度精彩内容推荐1.
希望提升硬件性能?请考虑从系统着手。
这篇文章主要讲述了如何利用DS-5工具在提升不同IP产品间系统组合的效率,并且实现总体系统利用率上升的一个途径。对于在系统中同时使用ARM不同IP的用户来说…
May 14, 2014
Booting Linux on the ARMv8-A model provided with DS-5 Ultimate Edition
Ronan Synnott
Note this blog is only valid for Linaro distributions up to 2014. Newer distributions support AEMv8 Base Model as supplied with DS-5 5.24 and later. For information on this model, see
here
.For instructions…
May 13, 2014
ARM第一季营收增长3%
wangyong
安谋(ARM)公布处理器授权金营收仅成长3%,该公司指称,是受存货调整因素影响。据SeekingAlpha网站报导,高通(Qualcomm)采ARM架构的64位元移动应用处理器(AP)最快2014年下半量产,该期间将让推出新产品的英特尔(Intel)抢走一定市场。 安谋营收成长主要来自授权金(licensingfee),在2014年第1季,安谋新增6家授权公司共26项处理器授权,主要是采64位元ARM架构的苹果…
May 12, 2014
CoreLink NIC-400: a great interconnect for wearables and entry-level smartphones
William Orme
As the number of processors and I/O masters in an SoC continues to rise the need for an efficient and easy to design interconnect becomes critical. An interconnect must provide sufficient throughput and…
May 12, 2014
智能手机流畅的秘密
Wally Mao
作者:maomaobear
其实并不简单——智能手机流畅的秘密 | 雷锋网
随着智能手机在大众中的普及,我们经常听到下面的抱怨:“为什么我的手机是八核了还卡。”每次听到这种话我都想说一句:“大哥,其实卡不卡和八核四 核关系不大。”但是要把智能手机的卡、流畅这个事情说清楚并不简单,这背后的秘密也远不是三句两句能说清楚的,这里我们做一个粗略的解释。安卓为什么会卡?通常人们会抱怨安卓系统不好…
May 12, 2014
CoAP Video Tutorial
Zach Shelby
Today we posted a new video tutorial on the Constrained Application Protocol (CoAP) and related technology for discovery and semantics from the IETF. In this tutorial I cover the background and motivation…
May 9, 2014
开发者们是否做过系统集成搞砸的噩梦?
Fang Bao 鲍方
原帖地址:
Do Androids have nightmares of botched system integrations?
发帖人
davidsben
2014 5:09:15 PM于2014年2月11日17:09:15在
ARM Mali Graphics
ARM 在今天发布了
ARM® Mali™-DP500 Display 显示处理器
,这是 ARM 迄今为止开发的第一款高规格显示处理器…
May 9, 2014
白皮书:ARM big.LITTLE 系统的软件技术
Song Bin 宋斌
原文下载地址:
http://community.arm.com/servlet/JiveServlet/downloadBody/2875-102-3-5655/Software_Techniques_for_ARM_big.LITTLE_Systems…
ARM big.LITTLE 系统的软件技术 Robin Randhawa,首席工程师,2013 年 4 月简介 移动应用已经发生了显著变化…
May 9, 2014
SMP Linux on a Minimal Dual-Core ARM Cortex-A15 System
Jason Andrews
Previously
, I explained how to create a minimal, single-core ARM® Cortex™-A15 system running Linux®. In this article I will update the hardware design to use a dual-core ARM Cortex-A15 CPU and run SMP…
May 8, 2014
Function Parameters on 32-bit Arm
Niall Cooling
Typically when teaching a class about embedded C programming, one of the early questions we ask is: Where does the memory come from for function arguments?
May 8, 2014
Inside the Demo: GPU Particle Systems with ASTC 3D textures
Daniele Di Donato
At SIGGRAPH 2014 we presented the benefits of the OpenGL ES 3.0 API and the more newly introduced OpenGL ES 3.1 extension. Adaptive Scalable Texture Compression format (ASTC) is one of the biggest introductions…
May 8, 2014
Smart Sensors - Why Sensors need Intelligence?
Joseph Yiu
Smart sensors are far from a myth, it is already used in million of devices (e.g. your mobile phone might already contain several smart sensors). Traditionally a number of smart sensors are designed with…
May 7, 2014
新手一个
Green tea
大二学生刚来这个社区,刚接触ARM,对ARM的很多知识都还不是很了解,请大家多多关照。
May 7, 2014
可穿戴设备的新卖点,帮助找对象
Song Bin 宋斌
最近,世纪佳缘提出了可穿戴设备用于婚介交友的应用,这是自软件APP以来,向硬件设备跨出的一大步。具体内容可参考这篇文章:
世纪佳缘推可穿戴设备是什么逻辑?--百度百家
我个人觉得可穿戴设备最大的挑战是如何摆脱鸡肋的地位,手环,手表,眼镜等,都是功能强大,造型新颖。但是和手机的重要性和人们对手机的依赖性相比,略有难堪。大家出门肯定不会忘记看一下有没有带手机,但是毕竟大家还没有出门必须要带智能手环之类的可穿戴设备的需求…
May 7, 2014
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