Blogs

TRK-KEA64 光盘里工具和文档很全，软件安装基本是下一步。CodeWarrior Development Studio（开发工作室）是完整的用于编程应用中硬件bring-up的集成开发环境。 采用CodeWarrior IDE，开发人员可以得益于采用各种处理器和平台（从Motorola到TI到Intel）间的通用功能性。根据Gartner Dataquest的报告，CodeWarrior编译…

The announcement of the ARM®Cortex®-A35 processor today marks the beginning of a new family of ultra high efficiency application processors from ARM. So, what are the key features of Cortex-A35 and what…

KEA64开发套件收到有一些时间了，中间有点事情耽搁了，一直没有分享，非常抱歉，先分享一篇开箱1.开发套件外包装，包装非常精致2.资料光盘，里面的资料非常详细，齐全，已经将资料从光盘拷贝到PC中3.数据线，美中不足的是数据线有些短，所以用在台式电脑上有些不方便，开发板要悬空4.Quick Start Guide5.板子正面照6.板子背面照7.上电测试，板载程序为 D3 D5 D6 D8组成的流水灯

Vertex interleavingRecently we were asked via the community whether there was an advantage in either interleaving or not interleaving vertex attributes in buffers. For the uninitiated, vertex interleaving…

What’s better than a bio-inspired, crawling robot? A spider bot that you can build yourself, that’s what. Locomotion mimicking nature has been around for a little while, but up until now has only been…

1.UART：Universal Asynchronous Receiver/Transmitter2.KEA8板子中用到的UART的结构：2.1发送器部分结构框图最上面是只能写入的内部总线，上位机将数据通过该总线写入到Tx Buffer中，然后传入到11bits的发送移位寄存器（11-BIT Transmit Shift Register），11-BIT Transmit Shift Register在波特率时钟的触发下和发送控制器的控制下…

1.先上一张寄过来的开发板从左至右，依次为：开发板、快速开始向导（小册子）、USB线、光盘2.光盘里资料这个光盘中的Documentation文件夹里有KEA8、64、128所有开发板的原理图、物料清单、参考手册（RM）、应用笔记（AN）等。感觉不是很好，KEA8的开发板配套的光盘里居然把其他如64、128的文档也放进来了。。。Software文件夹里是CodeWarrior for MCU 10…

ABSTRACT The media is buzzing with articles every week about the benefits of deploying IoT systems across various industries. Some forecasts mention the trillions of dollars that will be saved on a global…

1. 首先,官方提供了多種開發環境,範例包含了IAR,CodeWarrior,MDK,所以我使用MDK來玩這塊板子題外話: CodeWarrior要額外付費,另外官方有針對Kinetis推出免費的IDE KDS,但安裝過後加上KSDK,發現SKEAZN642不支援,所以各位就用自己擅長的IAR或者MDK即可2. 打開MDK,先安裝KEA的基礎函式庫包,左邊選擇Freescale>KEAxx Series…

       软件环境用的IAR,用的模拟公司的虚拟示波器，效果还不错！采用默认晶振I/O口输出频率可以达到2MHz !有一路和三路测量！       另外有一个问题是看门狗上电后是打开的，需要周期喂狗，还不能关闭看门狗，不知道啥原因？

今天开始学习TRK-KEA64自带的例程Lab1：UART，其功能就是接收PC端发送过来的字符后将其发送至PC端（echo），主要的参考资料有AN4942 Getting Started with Kinetis EA series MCUs， KEA64 Sub-Family Reference Manual和开发板自带的例程Lab1 UART。int main(void){  UINT32 counter…

Semihalf is happy to present the first blog post from the planned series of topics covering interesting facts about porting FreeBSD to Armv8 architecture.

This blog post refers to the public ARM Mali Midgard r6p0 user-space binary drivers for GNU/Linux. The fbdev variant now has support for dma-buf using a standard ioctl, which I explain in detail.

上次网速不好，重新发送原理图和板子照片！另外板子做工很好，发现有64脚和80脚两种封装！

System optimization involves running Linux applications and understanding the impact on the hardware and other software in a system. It would be great if system optimization could be done by running benchmarks…

TRK-KEA64 Starter套件里面主要有：1. Quick Start Guide：顾名思义，就是快速开始指南，主要包括对TRK-KEA开发板的介绍，以及如何安装CodeWarrior IDE，运行Demo Program。2. DVD光盘：包括CodeWarrior IDE安装文件，Docmumentation里面主要有 Quick Start Guide，KEA芯片Reference Manual…

第一次使用飞思卡尔（以前的摩托罗拉）芯片和板子，首先晒晒照片、原理图以及简要评价。KEAZN64芯片属于cortex M0+,宽范围工作电压2.7-5.5伏，温度-40-125度；有良好的EMC/ESD功能，片内还带有EPPROM存储器，高可靠性能的看门狗，性价比高，能工作在恶劣条件和环境下（目前ST和NXP的ARM芯片还达不到的），非常适合汽车电子等领域！照片和参考书。

Yesterday, the Media Processing Group at ARM announced a new highly-efficient graphics processing unit (GPU), the ARM® Mali™-470, to enable smartphone-quality visuals on wearable and IoT devices: …

I expected a very straightforward tuning process – after all, this code has been a staple of the HPC community for decades – but as it turns out I was in for a surprise!

When we look at what’s happening in consumer electronic devices, you can see there is a clear evolution path. The smartphone has become the central computing device for most people and it is now being…