ARM *simulators*

Started by D Yuniskis in comp.arch.embedded8 years ago 9 replies

Hi, [Trying not to hijack the "Best dev kits for ARM Cortex" thread] I'd appreciate comments re: vendor offerings for ARM...

Hi, [Trying not to hijack the "Best dev kits for ARM Cortex" thread] I'd appreciate comments re: vendor offerings for ARM *simulators* (i.e., forget the "device/vendor-specific I/O's) and their (presumably) code generating counterparts. I do most of my development and testing *without* target hardware so appreciate tools that let me exercise my code without being tethered to a physica...


STMicroelectronics STM32 F4 is the Fastest Cortex M4 - See specs

Started by Bill Giovino in comp.arch.embedded8 years ago 1 reply

http://microcontroller.com/news/STM32_F4.asp Core runs at 168MHz, but can get zero wait states out of 30MHz Flash with a 128-bit Program...

http://microcontroller.com/news/STM32_F4.asp Core runs at 168MHz, but can get zero wait states out of 30MHz Flash with a 128-bit Program Memory interface. Includes detailed specs. Article shows a nice block diagram. Bill Giovino http://Microcontroller.com


Tool Chain for Arm Cortex M3 on Linux Host

Started by Tim Wescott in comp.arch.embedded9 years ago 1 reply

I've been poking around without lots of success. I'm looking for the right tool chain to use to develop software for a TI LM3S811, hosting on...

I've been poking around without lots of success. I'm looking for the right tool chain to use to develop software for a TI LM3S811, hosting on Linux. This would be distributed as a training tool, so its almost essential to be able to do this with all free-as-in-beer software, and highly desirable that it be open source as it would eliminate tracking down any of those nasty "you can use ...


STM32 power consumption

Started by Paul Rubin in comp.arch.embedded6 years ago 8 replies

I'm interested in building a mini gadget that needs a fair amount of computing speed, and I'm thinking of using this Cortex M4 board, powered by...

I'm interested in building a mini gadget that needs a fair amount of computing speed, and I'm thinking of using this Cortex M4 board, powered by a small lipo cell: www.mouser.com/ProductDetail/mikroElektronika/MIKROE-1367 I notice in the data sheet that the maximum power drain is 800 mA at 3.3 volts, i.e. around 2.5 watts. That sounds awfully high--even a fancy smartphone with a multi-g...


lwIP web server authorization

Started by Elektrolot in comp.arch.embedded10 years ago 1 reply

I have lwIP running on Cortex-M3 core MCU. lwIP has web server. I want add basic userid/password access authorization to my web. How is the best...

I have lwIP running on Cortex-M3 core MCU. lwIP has web server. I want add basic userid/password access authorization to my web. How is the best way to do it? Regards


Atmel releasing FLASH AVR32 ?

Started by -jg in comp.arch.embedded12 years ago 63 replies

It seems Atmel are doing the next logical thing, and releasing FLASH variants of...

It seems Atmel are doing the next logical thing, and releasing FLASH variants of their AVR32. See: http://www.ecnasiamag.com/print.asp?id=13245 Top MHz still seems to be Flash constrained - we've been stuck in the 50-100MHz zone for what seems like years.... Seems to make the Cortex M3 look 'ordinary' - but will the peripheral specs be as impressive as the new Infineon XC2200 ? ...


Building uc/OS

Started by bkelly in comp.arch.embedded8 years ago 3 replies

My goal is to gain experience working with an RTOS. After selecting uc/OS I have have the book and software. After installing the software...

My goal is to gain experience working with an RTOS. After selecting uc/OS I have have the book and software. After installing the software and starting the book, I don't know how to build the kernnel. Chapter 1 of the book assume it is runnable in a DOS window, but I don't see how to build it. I have an ARM / Cortex evaluation board on order and hope to move to that. When can I find a tutori...


How do I get rid of a memory hole(in cortexm0plus)?

Started by Johann Klammer in comp.arch.embedded3 years ago 8 replies

I have been playing with (gcc/binutils)-arm-none-eabi recently and they have this 'flash configuration field' in those cortex m0plus thingies....

I have been playing with (gcc/binutils)-arm-none-eabi recently and they have this 'flash configuration field' in those cortex m0plus thingies. It is 16 bytes large and sits at address 0x400 of the flash memory. There's usable flash before and after it. Currently I am having this config field in its own section and I am using a linker script to place it at a fixed address. this does g...


USB transfer rate LPC17xx

Started by navman in comp.arch.embedded8 years ago 7 replies

Hi, We are designing a device which needs to transfer data to a PC over USB continuously. We plan to use the LPC1768 Cortex-M3 processor for...

Hi, We are designing a device which needs to transfer data to a PC over USB continuously. We plan to use the LPC1768 Cortex-M3 processor for this application. We would like some opinion on the best approach for the USB class implementation. We are looking at about 400Kbytes/sec sustainable transfer rate between the device to PC. The reverse traffic will be quite lean. We were thinking of usin...


3.3V Microcontroller 5V Device

Started by Razal in comp.arch.embedded11 years ago 3 replies

Hello... I am using the Cortex M3 ARM Controller STM 32, And my device to be interfaced is a 5V logic which is having an SPI and needs a signal...

Hello... I am using the Cortex M3 ARM Controller STM 32, And my device to be interfaced is a 5V logic which is having an SPI and needs a signal which is 1Mhz I can make a 1Mhz signal in controller using PWM and it is having an SPI Hardware but both out put is 3.3V but the PINs of STM32 is 5V tollerable. so the output from the device can be directly connected or with a resistor in it. B...


Multi-language support on embedded plarforms

Started by pozz in comp.arch.embedded2 years ago 22 replies

[This message is posted to comp.arch.embedded and comp.lang.c] Just for reference, an embedded platform based on a MCU with integrated Flash,...

[This message is posted to comp.arch.embedded and comp.lang.c] Just for reference, an embedded platform based on a MCU with integrated Flash, for example a Cortex-Mx device. Here I consider only western languages (left-to-right and european chars, english, french, german, spanish and so on). The main problem is the translation of strings, maybe 10-100 strings. I know something about ...


32-bit Microcontroller for $1.00 -Guy Macon

Started by Guy Macon in comp.arch.embedded11 years ago 57 replies

While researching something else, I ran into the following rather interesting opinions: Consolidating the MCU market around the ARM...

While researching something else, I ran into the following rather interesting opinions: Consolidating the MCU market around the ARM architecture ("It's inevitable. ARM's Cortex-M3 processor core is going dominate the MCU market.") http://www.embedded.com/columns/guest/207001013 Luminary Micro Announces 32-bit Microcontrollers for $1.00 -- First to Launch Products Based on the AR...


Luminary Cortex ARM toolchain thoughts?

Started by Spehro Pefhany in comp.arch.embedded11 years ago 10 replies

Luminary offer the following options: 1. ARM RealView? MDK tools 2. IAR Embedded Workbench? tools 3. CodeSourcery Sourcery G++ tools 4....

Luminary offer the following options: 1. ARM RealView? MDK tools 2. IAR Embedded Workbench? tools 3. CodeSourcery Sourcery G++ tools 4. Code Red Technologies Code Suite What's likely to provide the best value for a few WinXP development seats ? (the app will be using Ethernet heavily) Best regards, Spehro Pefhany -- "it's the network..." "The Journey is ...


New Cortex-M3 parts - This time CAN and Ethernet

Started by FreeRTOS.org in comp.arch.embedded12 years ago 15 replies

Going back to an old topic regarding the mix of peripherals on Stellaris parts, see: http://www.luminarymicro.com/products/whats_new.html --...

Going back to an old topic regarding the mix of peripherals on Stellaris parts, see: http://www.luminarymicro.com/products/whats_new.html -- Regards, Richard. + http://www.FreeRTOS.org 13 official architecture ports, 1000 downloads per week. + http://www.SafeRTOS.com Certified by T?V as meeting the requirements for safety related systems.


Flat Memory DDR3 Access on the ARM Cortex A8

Started by Randy Yates in comp.arch.embedded4 years ago 6 replies

I'm trying to kick out a simple (ha ha!) assembly language project in which I perform some simple DRAM tests on board based on the TI...

I'm trying to kick out a simple (ha ha!) assembly language project in which I perform some simple DRAM tests on board based on the TI AM3352 using a 512 MB DRAM (256M x 16). Ideally I'd like to just treat DRAM as a flat address space from 0x80000000 to 0x82000000. 1. Can I just "turn off" the MMU? 2. Should I keep data cache turned off as well? 3. Are there any access sequenc...


Re: Migrating from PIC18 to ARM: which MCU to choose?

Started by John Devereux in comp.arch.embedded9 years ago 2 replies

linnix writes: > > IMHO, STM32 is still by far the leader in Cortex-M3 designs, well > > ahead of LM3 and LPC1000, > > I would not...

linnix writes: > > IMHO, STM32 is still by far the leader in Cortex-M3 designs, well > > ahead of LM3 and LPC1000, > > I would not discount the 120MHz LPC1769 M3. STM32 peaks out at 70MHz. There seems to be 120MHz ones in the pipeline, anyone heard any more information? -- John Devere


g++ on Cortex-M with no dynamic memory

Started by Dave Nadler in comp.arch.embedded3 years ago 41 replies

For years *one* of the *many* ways we've made reliable C++ embedded is by forbidding dynamic storage (except heap). Typically that requires: -...

For years *one* of the *many* ways we've made reliable C++ embedded is by forbidding dynamic storage (except heap). Typically that requires: - no exceptions or RTTI - class new/delete/new[]/delete[] over-ridden with HCF - all free-storage run-time pruned from the libraries - minor compiler-specific stubs for un-used C++ stuff A quick C++ trial showed that generated code didn't drag too m...


How to test a TFT with RGB in a simple way

Started by pozzugno in comp.arch.embedded5 years ago 6 replies

I'm starting a new project that will use a small 4.3" TFT LCD display with resistive touch panel and RGB interface. I never used TFT displays...

I'm starting a new project that will use a small 4.3" TFT LCD display with resistive touch panel and RGB interface. I never used TFT displays in the past, so I'm not sure what is the best solution for me about the display and the controller board. I read about NXP Cortex-M3 LPC178x with integrated LCD controller and it seems good to me, mostly because I can use emWin libraries for free...


LPC1102, World's smallest 32-bit ARM MCU in a 5mm2 pckg

Started by An Schwob in the USA in comp.arch.embedded9 years ago 11 replies

Hi, ever heard about a 32-bit microcontroller this tiny? I am familiar with the Silabs devices that are available in similar packages but this...

Hi, ever heard about a 32-bit microcontroller this tiny? I am familiar with the Silabs devices that are available in similar packages but this time it is an ARM Cortex-M0 and it has more I/O and memory than I thought. 10-bit ADC, 4 timers, UART, SPI, 32K Flash and 8K SRAM, really not bad for such a grain of silicon. Check it out. http://www.mcu-related.com An Schwob


Microchip PIC32MZ Flash Microcontroller is the World's Fastest 32-bit MCU

Started by Bill Giovino in comp.arch.embedded6 years ago 31 replies

http://microcontroller.com/news/Microchip_PIC32MZ.asp The Microchip PIC32MZ runs at 330MIPS at 200MHz and easily competes against the...

http://microcontroller.com/news/Microchip_PIC32MZ.asp The Microchip PIC32MZ runs at 330MIPS at 200MHz and easily competes against the Cortex-M4. Includes a Microchip PIC32MZ block diagram and friendly roadmap for the PIC32 family. Bill Giovino http://Microcontroller.com