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简单介绍一下BLE(低功耗蓝牙)

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wolfSSL 3.4.6 Now Available

We would like to announce that wolfSSL version 3.4.6 has been released and is now available for download from the wolfSSL website (here). This release of wolfSSL has bug fixes and new features...

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ARM Microcontroller Design Contest 2015

Welcome to the forum for the ARM Microcontroller Design Contest! Post your questions regarding the hardware, software or terms of the contest here. Members of the Keil Marketing Team will monitor this...

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Please help about AMBA AXI 3.0

I am a junior ASIC engineer. At the moment, I have three the question about AMBA AXI 3.01. No combination paths between master and slave, all timing path must be registered. Why the VALID and READY...

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Accurate cycles measurement

Dear experts, I am currently trying to measure the cycles required to context switch between two linux processes and the cycles required to world-switch between two linux VMs running above a thin...

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Maximum data width about NIC-400/300 of AMBA Designer

Hello everyone.  I would like to know about AMBA Designer.I found out that there are the 256 bit datawidth limitation in NIC-400/300 of AMBA Designer.Please tell me what should I do to generate...

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Getting started with ARM Microcontroller Resources

Chinese Version中文版1 - OverviewFor a beginner new to ARM based microcontrollers, it can sometimes be a little difficult knowing where exactly to start finding all the useful information that will help...

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How to schedule Secure/Normal kernels in TrustZone implementation?

I read TZ whitepaper. TZ's software architecture includes normal OS, secure OS, and a monitor that manages switching between two OS. The notion is clear. But how to implement them confuses me. Running...

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Are any companies planning to release a Cortex-M7 IC with lock-step?

Hi guys, I'm eager to use the M7 in ASILD and SIL3 applications as it offers our developers a more familiar environment and behaviour compared to the R series, amongst a few other preferential...

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Stack memory protection using MPU in CMSIS RTX RTOS

Hi Experts, Does the stack memory protection or some other similar feature is deployed in the CMSIS RTX RTOS ? Regards,Teachguyz

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Cache Penalty when the MPU's sub region is modified

Hi Experts, What will be the cache penalty each time the MPU's sub region is re-configured ? Regards,Techguyz

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Adding inline assembly in C Code

Hi  There are some instances when you need to call ARM Instructions in C Code. Best way is to use __asm { } .This is good when no issue is there. But some times, you get some errorerrot #1113 arm:...

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Save Image on 'Mali_Texture_Compression_Tool_v4.2.0'

Now we are using the 'Mali_Texture_Compression_Tool_v4.2.0', but we found we could not save the picture. Why the picture could not be saved? Do we have to buy the business version? How to buy it? And...

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Enable Streamline on Note 4

Samsung seem to have recently released open-source kernel for Lollipop for Note 4 with r5p0 driver.I am using a free version of DS-5 v20.1  I am following instructions from links below to build gator...

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Details on SoC Integrations with ARM

Hi Experts, Does ARM publishes any data on the list of vendors using each of the ARM series processors ? It could be like commercial products, or general purpose controllers ,etc. Regards,Techguyz

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MYD-IMX28X ARM9 Development Board

The MYD-IMX28X Development Board designed by MYIR is a cost-effective and power-efficient ARM Evaluation Kit (EVK) forFreescale i.MX28 family of multimedia applications processors which has an...

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Change address during WAIT in AHB

Note: This was originally posted on 6th November 2011 at http://forums.arm.comIn AHB Lite, page 3-20, Figure 3-17, (attachment)it is said as follows:"T4-T5  The master changes the transfer type to IDLE...

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GICv3 specification

Is there any GIC architecture version 3.0 specification available ? I could not find it online. Thanks

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如何从零开始利用ARM微控制器相应资源

作者:Joseph Yiu ,2015年4月3日第五版更新原文地址:Getting started with ARM Microcontroller Resources1 –...

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AMBA AHB TRANSFER CONTINUE AFTER ERROR RESPONSE

Hello everyone,Please describe me the transfer continuation process after ERROR response from the slave.As shown in the above figure at cycle T4 if MASTER identifies the ERROR response from the SLAVE....

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