silrtos port on ARM

Started by Anonymous in comp.arch.embedded11 years ago 5 replies

I was looking for low footprint RTOS (with minimal capability of Message Q, semaphore, memory mgmt, few tasks & interrupts) and found silRTOS...

I was looking for low footprint RTOS (with minimal capability of Message Q, semaphore, memory mgmt, few tasks & interrupts) and found silRTOS fits for my budget size(


Opinions on Rowley CrossWorks for ARM

Started by Sebastian Schildt in comp.arch.embedded12 years ago 77 replies

Hello group, I'd like to hear some opinions regarding the Rowley CrossWorks for ARM toolchain. I know, this is a somewhat broad request, so...

Hello group, I'd like to hear some opinions regarding the Rowley CrossWorks for ARM toolchain. I know, this is a somewhat broad request, so I'll try to clarify things a bit more: I am in the process of evaluating ARM toolchains which are to be used in university classes/projects. Wishlist 1. stable, proven toolchain 2. preferably something "industry standard", so students use...


MIPS vs ARM architectures

Started by Daniel Lenski in comp.arch.embedded12 years ago 8 replies

Hi all, I've been curious about the relative merits of ARM and MIPS and just stumbled across a thread from March in which this was discussed a...

Hi all, I've been curious about the relative merits of ARM and MIPS and just stumbled across a thread from March in which this was discussed a bit (http://groups.google.com/group/comp.arch.embedded/browse_frm/thread/732d062b040a5039/6261b3e010 3cb19b?lnk=st&q=arm+processor&rnum=1#6261b3e0103cb19b). I'm a physics student and have gotten interested in RISC processors, since taking a course on


Any Large Integer Libraries Out There for the ARM?

Started by David T. Ashley in comp.arch.embedded7 years ago 43 replies
ARM

I needed to multiply U128 = U96 * U32 on an ARM the other day, and did a hack job in C. It is logically correct, but it probably takes...

I needed to multiply U128 = U96 * U32 on an ARM the other day, and did a hack job in C. It is logically correct, but it probably takes 3-10 times as long as assembly-language. Are there any large integer and similar libraries out there for the ARM? The GMP is a great resource, of course, but it isn't very applicable to embedded systems because of: (a)Dynamic allocation. (b)Variabl...


ARM microcontroller

Started by Anonymous in comp.arch.embedded14 years ago 1 reply

Hi everybody, I've used till now a C167CR (high end microcontroller, Infineon ...) and I'm trying to switch to the ARM based...

Hi everybody, I've used till now a C167CR (high end microcontroller, Infineon ...) and I'm trying to switch to the ARM based microcontroller. Has somebody experience with C167CR and could me recommend some similar and suitable ARM-Based microcontroller.


please help regarding dsp vc arm board processor vision applications

Started by Gagan_sulfnbk in comp.arch.embedded12 years ago 9 replies

hi can anyone help me how can i port my image processing application which runs currently at 2ghz p4 on a 1) dsp which does not require...

hi can anyone help me how can i port my image processing application which runs currently at 2ghz p4 on a 1) dsp which does not require computer 2) arm board processor how much will a dsp/arm board cost for a computation power equal to 4ghz intel P4 i would be highly obliged if somone could help me thanks in advance gagan


Replace Keil/ARM tools

Started by MK in comp.arch.embedded5 years ago 43 replies

For many years I've been using Keil/ARM's C compiler. Recently we started using the so called 'middleware' which was, to put it at its best, a...

For many years I've been using Keil/ARM's C compiler. Recently we started using the so called 'middleware' which was, to put it at its best, a rather mixed experience. They have just released (couple of months ago) version 5 of their tool set which includes a software component packaging system and the full ARM CMSIS API with drivers for many processors. The CMSIS API is rather limit...


alternative to "arm development suite"

Started by Mayank Kaushik in comp.arch.embedded14 years ago 15 replies

Hi, Im an undergrad who is new to ARM-based controllers. Im working on a custom board based on the AT91rm9200 microcontroller. The aim is...

Hi, Im an undergrad who is new to ARM-based controllers. Im working on a custom board based on the AT91rm9200 microcontroller. The aim is to develop an in-house evaluation board that can be used in the future for educational purposes. Currently, im using the trial version of "Arm development suite" (ADS 1.2), and my licence is running out. Are there any free GNU tools available that can to...


ARM Cortex Mx vs the rest of the gang

Started by Klaus Kragelund in comp.arch.embedded2 years ago 56 replies

Hi So, considering going the Cortex Mx route for project with new microcontrollers at our firm. Has anyone a feeling/information about the...

Hi So, considering going the Cortex Mx route for project with new microcontrollers at our firm. Has anyone a feeling/information about the development speed of the ARM Cortex Mx series vs the rest of the industry? Meaning, that potentially the same core strategy for the ARM, licensing to toher manufactors mean that they may have faster development speed that others (Microchip, Renesas, wh...


ARM device chart

Started by rickman in comp.arch.embedded13 years ago 9 replies

I am preparing a summary chart of most of the ARM MCUs. This is a larger task than I would like. If anyone would like to assist, visit the web...

I am preparing a summary chart of most of the ARM MCUs. This is a larger task than I would like. If anyone would like to assist, visit the web site at http://www.gnuarm.com on the resources page under the ARM Chips heading and click the link to the device comparison chart. I have filled in data for the Analog Devices parts and the Philips LPC2xxx parts. Both of these sections can use an a...


Question on ARM Instruction and an Armulator Bug?

Started by Jar Jar Code Binks in comp.arch.embedded5 years ago 3 replies

To all: I am playing with Armulator to try to understand the ARM instruction as I do not yet have any ARM hardware to play with. However I...

To all: I am playing with Armulator to try to understand the ARM instruction as I do not yet have any ARM hardware to play with. However I run into a possible Armulator bug. This is surprising as Armulator should be sophisticated enough to have such trivial and obvious bug. Here is the code that Armulator try to emulate: 00008104 : 8104: e3b00016 mo


ARM 7 and 9 evaluation board recommendation

Started by Beamer in comp.arch.embedded14 years ago 5 replies
ARM

Hi, I'm searching for ARM 7 and 9 eval boards in the price range of $500-700. Please help recommend some good & reliable...

Hi, I'm searching for ARM 7 and 9 eval boards in the price range of $500-700. Please help recommend some good & reliable ones. Thanks, -anek


ARM

Started by Tom Johnson in comp.arch.embedded15 years ago 2 replies
ARM

does anyone know of any ARM-based chips that have 24 or more ADCs?

does anyone know of any ARM-based chips that have 24 or more ADCs?


Advice neede: Atmel or Philips ARM

Started by Meindert Sprang in comp.arch.embedded13 years ago 39 replies

Hi Gurus, I am switching from AVR to ARM. Currently, I use an ATmega162 which is running out of code space (16kB) and performance. But I find...

Hi Gurus, I am switching from AVR to ARM. Currently, I use an ATmega162 which is running out of code space (16kB) and performance. But I find it difficult to choose between Atmel's ARM (looking at the SAM7S series) and thePhilips LPC2104/5/6 series. I don't need many peripherals (yet). My current design uses an FTDI chip for USB, I could save that by using Atmel (Philips has no USB), but o...


ARM cache misses and performance

Started by Nils in comp.arch.embedded11 years ago
ARM

Motivated by the code optimization thread I started to question some of the things I do when writing code. A question that I can't easily...

Motivated by the code optimization thread I started to question some of the things I do when writing code. A question that I can't easily answer myself is about ARM instruction scheduling (XScale and Arm9 in my case). I've read all I could find but all the documents form ARM don't tell me what happends during a cache miss. Now I wonder: If a load is outstanding due to a cache-miss...


build an arm board to run linux

Started by manche in comp.arch.embedded9 years ago 2 replies

I want to build an arm board to run linux. I'm not really interested in buying a board and messing around with it. I would go for a...

I want to build an arm board to run linux. I'm not really interested in buying a board and messing around with it. I would go for a schematic though. Any pointers on how I could get started? I have heard mixed advice from people. Some say the atmel arm microcontrollers are pretty easy to hook up to other components, some say it's not that simple. I just want to know how I can get started.


ARM AMBA Designer licensing cost

Started by guestuser1 in comp.arch.embedded10 years ago 4 replies

A different department at my company handles the ARM licensing. I think we need to generate some AHB/AXI interconnect blocks, but in order to...

A different department at my company handles the ARM licensing. I think we need to generate some AHB/AXI interconnect blocks, but in order to produce the synthesizeable RTL, we need an AMBA_Designer license. (We already have an SOC designer, ARM compiler/assembler environment.) Due to some stupid politics, I'm trying to find out what it'd cost the company to acquire the necessary license ...


ARM LPC1768 Cortex M3 Project

Started by taharehman in comp.arch.embedded8 years ago 4 replies

Hello, This is an undergrad student having a little experience with 8051 microcontrollers. This year, I chose to learn about ARM...

Hello, This is an undergrad student having a little experience with 8051 microcontrollers. This year, I chose to learn about ARM Microcontrollers, so I chose a project Digital Photo Frame on VGA with ARM LPC1768. About the project, it should copy image from SD Card to some temporary storage(or this might be unnecessary, as I dont know because I have a little experience with the timings and all) ...


bin/ld: unrecognised emulation mode: apfile

Started by mantaray in comp.arch.embedded15 years ago 3 replies

I got the following error message while cross compiling my application for ecos. arm-elf-gcc -Wl,-Map,-mapfile...

I got the following error message while cross compiling my application for ecos. arm-elf-gcc -Wl,-Map,-mapfile -L/root/httpd_test/ecos_kernel/install/lib -Ttarge t.ld test_httpd.o -L../libhttpd-1.3/src -lhttp -o test /opt/ecos/gnutools/arm-elf/bin/../lib/gcc-lib/arm-elf/3.2.1/../../../../arm-elf/ bin/ld: unrecognised emulation mode: apfile ^^^^^^ Where ...


Lowest power ARM

Started by ghazanhaider in comp.arch.embedded13 years ago 1 reply

I'm looking for the lowest power arm with an external bus and MMU. It should be able to run Linux, even if theres no readily available toolchain...

I'm looking for the lowest power arm with an external bus and MMU. It should be able to run Linux, even if theres no readily available toolchain for it. So It should be ARM720T or higher. The Atmel ARM9 parts are the only ones that support 1.8V external bus, where I can use low-power SRAM working on 1.8V. Every other ARM is 3.3V at their external bus, including the LPC2000 ones. I'll probab...