Copy to and execution from RAM

Started by Klaus Kragelund in comp.arch.embedded3 weeks ago 10 replies

Hi I am using a STM32 and I want to use the flash as storage, but I need the processor to keep running Writing to flash while execution from...

Hi I am using a STM32 and I want to use the flash as storage, but I need the processor to keep running Writing to flash while execution from flash will take about 20us for 16bit value and when the entire block is close to be filled up an erase of the block takes 20ms 20ms halt of code execution is not an option So, the plan is: Copy code that needs to run to RAM Move p


2nd CfP Ada-Europe 2018 Conference, Lisbon, Portugal

Started by Dirk Craeynest in comp.arch.embedded1 month ago

----------------------------------------------------------------------- 2nd Call for Papers ...

----------------------------------------------------------------------- 2nd Call for Papers 23rd International Conference on Reliable Software Technologies - Ada-Europe 2018 18-22 June 2018, Lisbon, Portugal http://www.ada-europe.org/conference2018 Organized by Univ. Lisboa a...


Using Mscgen for nice looking State Flow Diagrams

Started by Anonymous in comp.arch.embedded1 month ago

Hello, there are many cases where it is useful to monitor a system in real-time and trace the sequence of events. This link...

Hello, there are many cases where it is useful to monitor a system in real-time and trace the sequence of events. This link http://sinelabore.com/doku.php?id=wiki:toolbox:trace-the-event-flow explains how to do code instrumentation and create nice looking Sequence Diagrams showing exactly the flow of events (trace) for a detailed analysis. For the graphics rendering Mscgen is used. Be...


Remapping to Processor code region Vs Without remapping

Started by mohsenzandie in comp.arch.embedded1 month ago 6 replies

What is the differences between: 1.Remapping memories to processor code region and 2.Executing the program code built with absolute addresses...

What is the differences between: 1.Remapping memories to processor code region and 2.Executing the program code built with absolute addresses without remapping I read something about executing multiple image in a microprocessor (ARM Cortex-M3) and i'm ambiguous about differences between executing with remapping image to "code space" and without remapping? I would be grateful if you help me ...


What is the best communication mechanism with collision detection/avoidance for my topology?

Started by Anonymous in comp.arch.embedded1 month ago 7 replies

Hello All, Here is my sensor topology.. _____________ _____________ | ...

Hello All, Here is my sensor topology.. _____________ _____________ | | | | Tx |------------|---------> | Rx | | | | | | |ATMEGA128 | | | ATMEGA8 | | | | | | | Rx |-------


Beware of GNU-ARM compiler for Cortex-M0/M0+/M1

Started by StateMachineCOM in comp.arch.embedded1 month ago 21 replies

The popular GNU-ARM toolset has had long-known issues for the Cortex-M0/M0+/M1 (ARMv6-M architecture). Specifically, people have reported very...

The popular GNU-ARM toolset has had long-known issues for the Cortex-M0/M0+/M1 (ARMv6-M architecture). Specifically, people have reported very inefficient code generated, see "Cortex M0/M0+/M1/M23 BAD Optimisation in GCC" https://embdev.net/topic/426508 . But while so far people reported only inefficient code, I would like to make people aware of *incorrect* code generated by GNU-AR


ov7690 SCCB writing data to register

Started by hassanmahmood in comp.arch.embedded2 months ago 7 replies

hello: Hello: i am using ov7690 with at91sam usin MCK at 12.3MHz. but for testing purpose i am using I2C at 153KHz from atmega2560...

hello: Hello: i am using ov7690 with at91sam usin MCK at 12.3MHz. but for testing purpose i am using I2C at 153KHz from atmega2560 for SCCB. I can read any register from ov7690 but I can't write to any register. the response is correct i.e. status register of TWI of atmega2560 depicts correcr value, meaning it sends data. but when i read back the value from that register the ol...


Linux and Yocto Project Training 2018, Germany

Started by Sunil Kumar in comp.arch.embedded2 months ago

Toradex is offering an enterprising three-day course in collaboration with KOAN Embedded Software Engineering to teach everything that you need to...

Toradex is offering an enterprising three-day course in collaboration with KOAN Embedded Software Engineering to teach everything that you need to get started with embedded Linux and Yocto. You will be guided step-by-step by experienced trainer Marco Cavallini. The course is for a maximum of 10 attendees and will be held at the Victor's Residenz Hotel Munich, Germany, from January 2


RCM2200 battery

Started by "dav...@epsiloncompany.com [rabbit-semi]" in Rabbit-Semi2 months ago 1 reply

I have an app for the RCM2200. There is clearly a battery position marked on the upper surface (3 pins, 25mm spacing). I will need battery...

I have an app for the RCM2200. There is clearly a battery position marked on the upper surface (3 pins, 25mm spacing). I will need battery backup and it would be easy to add it to the CORE. Any idea which battery fits? I found a cr2032 mfr that looks close. Thanks in advance, David


SNMP

Started by "S S...@gmail.com [rabbit-semi]" in Rabbit-Semi2 months ago 6 replies

i will read a value from a device through SNMP. How can I read its value based on OID? Thanks Stev

i will read a value from a device through SNMP. How can I read its value based on OID? Thanks Stev


Ask a Question to the EmbeddedRelated community

To significantly increase your chances of receiving answers, please make sure to:

  1. Use a meaningful title
  2. Express your question clearly and well
  3. Do not use this forum to promote your product, service or business
  4. Write in clear, grammatical, correctly-spelled language
  5. Do not post content that violates a copyright