Cortex-A57's TCR_EL1 question
hi, experts:In CA57 TRM, chapter 4.3.41 : TCR_EL1[5:0] : the region size is 2(32-TSIZE), 是笔误吗？应该为2(64-TSIZE)吧. best wishes,
View ArticleRe: CA53 / CA57的地址线数目
hi,上述所说的AArch32时有40根地址线，意思是地址线的低40位是有效的。 多出来的4根线上是无效值。相应的AArch64时，44根线都是有效的。在A57的pin上，address一直是44位的。best wishes.
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Re: Distance measurement by ARM1176JZF-S(DS- 5 TOOLS) using ultrasonic sensor
The only DVD that I have received is the REALVIEW VERSATILE FAMILY PRODUCT SUPPORT DVD which I have installed in my system and the purpose of which I still have not been able to understand (and no...
View ArticleCortex-A53 / Cortex-A57的地址线数目
hi, experts:根据CA57 TRM：它的地址线数目：Aarch64 state : 44根Aarch32 state : 40根 Aarch32 state比Aarch64少用了4根：那么这4根地址线，在Aarch32下，用作什么signal pin?实现相关吗？ best wishes,
View ArticleARMv8中：stage1 and stage2 address translation
hi, experts:如果一个ARMv8 SOC没有实现EL2，那么就不存在stage2 address translation，对吗？ best wishes,
View ArticleRe: Cortex-A57's TCR_EL1 question
Hmm, looks like an error in the document I will raise this with ARM's documentation team, thanks for pointing it out.
View ArticleCoreTile V2P_CA15_A7 OS DVFS support
Hi, I want to ask if the CoreTile V2P_CA15_A7 board (the big.Little) supports operating system level DVFS. For example is it possible to scale the cores frequency and voltage on this board using a...
View ArticleRe: ARMv8中：stage1 and stage2 address translation
增加一个问题：对于Cortex-A57来说：它是44bit地址线：对于4KB granule, 那么它的address translation level必须是4级？不能配置为3级吗？
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Re: MGD for non rooted devices?
Hi Stephane, Thanks for your pointers and for testing this, good to hear it works. I shared some of Pete's concerns about bypassing the Android layer, so surprised it's working! Thanks also for...
View ArticleARMv8 Compiler Issue concerning SoftVFP option
Hi, We are currently using the DS5 ARM C/C++ Compiler for ARMv8, 4.9 [Build 422] and we are facing some issue with the --fpu=SoftVFP option. While using this option we have the following error...
View ArticleI am currently working on lpc2148.I am trying to glow led's using port0.It is...
HERE IS ASSEMBLY CODE: AREA PROGRAM,CODE,READONLYENTRYSTARTLDR R0,PINSEL0LDR R1,=0X0STR R1,[R0]LDR R0,PINSEL1LDR R1,=0X0STR R1,[R0]LDR R0,PINSEL2LDR R1,=0X0STR R1,[R0] LDR R0,IO0DIRLDR R1,OUTPUTSTR...
View ArticleRe: ARMv8 Compiler Issue concerning SoftVFP option
Why do you want to specify SoftVFP? Floating point and NEON are both mandatory in hardware for ARMv8-A, so you may as well use the hardware ... Pete
View Articledeprecated features?(generic question)
Hi all, A small question, not technical but I think important. When ever ARM reference manual says "ARM Deprecates this feature", does this mean we should not implement that features or what does this...
View ArticleBE. Mobile Academy Module 1: First Android Native Application
Taking part in the BE. Mobile Academy? Brushing up on your knowledge of mobile app development ahead of Brains Eden Gaming Festival in July? If you have any questions, big or small, about Module 1 of...
View ArticleIntegrated Circuit Design Service
Hi guys, We're looking for someone to provide IC design services for a specific USB IC concept. Any idea where we can go and how to obtain a quotation? Many thanks,Alistair Lowe
View ArticleRe: deprecated features?(generic question)
From a software point of view, it means that this feature may be removed in future architecture versions so you should not use it.
View ArticleRe: Integrated Circuit Design Service
Hi Alistair, You can search key word on the community.Not sure if you have requirement on location. There is an Taiwanese company Golden-IC 鉅京科技有限公司 You can leave message on their company page
View ArticleRe: Problem with _global_reg()
You could talk to them about marking it as volatile which I think is the cleanest way of saying it could change at any time, as their documentation says at the moment they don't currently support that....
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Business Week ARM article
Ashlee Vance from Bloomberg Businessweek reports on how “ARM came to rule the world,” noting ARM-based products are the most-used consumer devices in the world.
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