What does No Cortex-M Device found in JTAG chain mean?
When I try to execute the Blinky program On menu, select Debug -> Start/Stop Debug Session I get a dialog box: JLink - Cortex-M Error No Cortex-M Device found in JTAG chain. Please check the JTAG...
View ArticleRe: How to use those crypto extension to write asm code?
Also, Crypto is optional in ARMv8-A (hence it needing a special flag to the build tools). The model can be configured to include the Crypto support or not. If the model is configured to not include...
View ArticleIEC 62279 LPC 17xx compatibiltity
I would like to know if LPC17xx can be used for safety critical(SIL 4) rail systems(IEC 62279 and/or IEC 62280). Are there any specific references like IEC60335 Class B library.
View ArticleOpenCL NEON Cortex-A9
Hi, I have seen the ARM webpage for OpenCL SDK for NEON and Cortex-A9. But I couldn't find any page to download the SDK and test that on Cortex-A9 available in Xilinx Zynq. Is this SDK available for...
View ArticleRe: cortex-A15 汇编执行的cycle数与手册中的不一致
如果是多媒体或者是信号处理算法的话用NEON应该会比较好。通过自己改写汇编来优化需要对CPU的微架构有所了解，所以难度很大。 你可以参考我在cortex-A 系列汇编问题给的建议。
View ArticleRe: What does total IR len. and TDO is constant mean?
Thanks for your ideas, which I agree with. But where can I find the "correct" setup instructions. I am using the NXP LPC4330-Xplorer board connected to an LPC-Link2 debug board. All the instructions...
View ArticleRe: Enable Streamline on Note 4
Hi sidxavier1, I have followed the steps involved to try to see if I can reproduce your problem, and found that I hit the same issue as you do. Interestingly I do not get the same error if I do this...
View ArticleRe: Can anyone provide an example of asynchronous exceptions?
On the "abort" side the most common cause is cache evictions from write-allocate caches getting a bus error back indicating that the physical address they were trying to write to didn't exist. This...
View ArticleRe: Re: Enable Streamline on Note 4
Hi sidxavier1, After investigating, we have discovered the reason. Samsung have enabled TIMA in this version of the kernel for this device... TIMA stands for TrustZone-base Integrity Measurement...
View ArticleRe: Run OpenCL sample in Android
Hi The reason for ur error is given in this link https://www.khronos.org/registry/cl/sdk/1.0/docs/man/xhtml/clCreateContext.html Have you pulled the .so library from your HuaWei ? Thanks Aravind
View ArticleRe: Run OpenCL sample in Android
Hi Chris I had to link the libOpenCL.so and libMali.so and problem is solved Thanks a lot Aravind
View ArticleRe: Anyone knows of any Cortex-A9 development boards?
Yeap, Wand Board is good option. Multiple serial IO interfaces are the challenge. Other option to check out is RioT board, www.riotboard.org again based on Freescale iMX 6 which is A9 based. or for a...
View ArticleRe: What does total IR len. and TDO is constant mean?
I downloaded and read all available documentation, but there is nothing that I see about the correct configuration of this combination of boards. I was hoping that another Contest participant had...
View ArticleRe: ARM 和NEON 汇编条件执行问题
你的文档原文在哪里？ 在ARM® Compiler toolchain Version 5.02 Assembler Reference 文档中 Shared NEON and VFP instructions 列表中不包含vst指令，只有vstr/vstm指令
View ArticleRe: ARM 和NEON 汇编条件执行问题
我使用的是 NEON™ Version: 1.0 Programmer’s Guide, 这个文档是以下这个链接中 joeyxu 给我的一个链接NEON Programmer’s Guide。 cortex-A 系列汇编问题 C.1 List of all NEON and VFP instructions 小结中的Table C-1 NEON (Advanced SIMD) and VFP...
View ArticleRe: Anyone knows of any Cortex-A9 development boards?
I bought a RiotBoard few months back. The support for this board is not at all good. Sorry, I would not recommend RiotBoard .
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