I am having some issues trying to debug what appear to be some very strange behaviors. For example, we have:
static const char* LOG_FORMAT = "0x%02x,%.5f,";
and the pointer changes for no obvious reason. Sometimes to garbage, sometimes to other…
Hi
I try to debug a old linux kernel (2.4) on a ARM7TDMI (samsung s3c44b0x).
I read some tutorial and forum discussion but nothing work.
Somebody know where can I find a good tutorial for debugging kernel on a ARM7TDMI from scratch?
Thanks for reply
I am attempting to port a mature product from the ADS 1.2 tool chain to the DS-5 tool chain.
I am receiving a linker error L6286E (actually 7 errors):
Error: L6286E: Relocation #REL:36 in IntAuxFRM.o(.text) with respect to Mfs_cleanup_ALL_files. Value…
Hello, i can download emulator Opengl for android arm mali gpu arm7, or only Win/Linux ?
在A5.2 Addressing Mode 2 - Load and Store Word or Unsigned Byte的这个地方是不是应该是W=0和W=1啊
Isurki’s “TESDA” (http://www.isurki.com/images/fichas-tecnicas/tesda%20v1.1._user%20manual.pdf ) analog & digital inputs and outputs board allows ARM based industrial computers to interface with harsh environments and control industrial…
Arm has had a long association with mobile gaming, ever since Nokia launched the iconic Snake game on its Arm-powered 6110 handset back in 1997. Incidentally, the Nokia 6110 was the very first GSM phone to use an Arm processor (ARM7).
From these beginnings…
when swi instruction is executed at that time it is said that pc is not updated yet so it is pointing to instruction next to swi instruction for example
addr code
0x0000 swi 1000x0004 mov r1,r20x0008 mov r2,r3
so in this code when swi instruction…
in arm7tdmi, suppose instruction is being executed and at same time FIQ and IRQ both occur at same time.now according to priority FIQ will be handled then IRQ but my question is that how it will handled IRQ after return from FIQ
i means…
The ARM720T user manual mentions small and large pages. Since the ARM 720T requires a 64KB page table entry to be duplicated 16 times in the page table, why not place 16 small page (4KB) entries to mimic a 64KB page entry instead of using a large page…
In instruction pipe lining in arm7tdmi the next to next instruction from the instruction being executed is fetched in to the arm7 and we call it as fetching then what is difference between fetching of instruction which is next to next from the instruction…
what does that arrow indicates(arrow from mclk to a[31:0] ?
hi ,
can u list out the operating system supporting sd card read and write for arm7TDMi architecture?
Hi, I'm working with the LPC1768 and I'm trying to use a reserved memory area to enumerate the address of some variabile that are stored on an external spi flash.
I've made with success the same thing on an LPC2376 (ARM7) but with the cortex I…
I am working on ARM7TDMI Please help me to understand the following points:
1. how does the current drawn by the processor with respect to the operating frequency(please mention the current values).
2. Please specify the ideal current…
I am new to ARM processor, right now i am learning ARM7TDMI-s, but currently in industry they are using ARM9, i want to know the advanced features of ARM9 compared to ARM7.
原文地址：A Brief History of ARM: Part 2
作者: benwalshe
继续我的上一篇博客：ARM 简史：第一部分。我将讲述 ARM 在 1998 年的历史。正是在这一年，ARM 在伦敦证券交易所 (FTSE) 和 NASDAQ 上市，成为一家上市公司。请在网站上查看 ARM 里程碑，深入了解 ARM 运营年份的记事表。此网站还有一个部分很好地介绍了 ARM 经典处理器系列的详细信息。
20 世纪 90 年代末：增长、互联网崩溃以及成为上市公司的压力
20 世纪 90 年代末是技术发展的繁荣时期…
原文地址：A Brief History of ARM: Part 1
作者：benwalshe
该系列第二篇文章：ARM简史：第二部分
在我就职于ARM的过去一年中，发现人们对ARM的历史十分感兴趣。在登陆谷歌进行快速搜索并打开了多个标签后，我发现关于ARM的真实历史存在很多争议和评论。
你可以轻松查阅到ARM公司纪事表，但无法真正知晓ARM如何诞生并逐渐成为行业翘楚。然而你可以了解ARM授权厂商的完整大事年表以及公司成长历程中的关键时刻。如果你认为还需添加更多信息，或你希望在今后的博客文章中阅读到某些话题的相关探讨…
After migrating from an Arduino to a Raspberry Pi, Maker Jonathan Peace discovered that there were still some things that he just couldn’t do with a barebones Unix platform. In search of a way to help alleviate this problem, Ardhat was born
Billed…
移动设备的兴起，最受益的非ARM莫属。ARM宣布其合作伙伴在2013年ARM架构芯片的总出货量超过100亿颗，这是ARM非常有标志性的一年。还有一个更大的值得庆祝的数字：自1991年成立后，ARM处理器的历史累计出货了已经突破了500亿颗!
ARM推出的处理器主要面向移动、嵌入式、企业及家庭四个领域。其中移动市场毫无疑问的占据了最大的份额，高达58%。其次是嵌入式市场，占据了20%的市场份额，这个市场包括各种SSD、HDD主控以及手机基带也适用了ARM架构。
值得一提的是企业级市场，这里可能会跟大家的认识有较大差别…
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，能快速准确定位QRS复波（即计算人的心率）。该设计面向广大家庭用户而设计…
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