C++ threads versus PThreads for embedded Linux on ARM micro

Started by gp.k...@gmail.com in comp.arch.embedded10 hours ago 6 replies

We're starting an embedded Linux C++ project with an ARM micro and using GCC V7. Can anyone suggest pros and cons of using C++ Threads versus...

We're starting an embedded Linux C++ project with an ARM micro and using GCC V7. Can anyone suggest pros and cons of using C++ Threads versus PThreads (Posix threads).


FreeRTOS memory footprint reduction at build time

Started by John Speth in comp.arch.embedded2 weeks ago 5 replies

Hi Folks- FreeRTOS has a build config file (FreeRTOSConfig.h) that users can apply at build time to customize the RTOS. The FreeRTOS web...

Hi Folks- FreeRTOS has a build config file (FreeRTOSConfig.h) that users can apply at build time to customize the RTOS. The FreeRTOS web site has a page to describe the options (https://www.freertos.org/a00110.html). What it doesn't have is any hints about how much RAM it might save me. Does anybody have any first hand advice about how much RAM each option might contribute to the R...


LWM2M C Language Implementation for the Small Embedded IoT Devices

Started by Anonymous in comp.arch.embedded2 weeks ago 3 replies

Hi group! As a n00b in the IoT domain I have had trouble finding a suitable open source implementation in C for the LWM2M protocol with DTLS...

Hi group! As a n00b in the IoT domain I have had trouble finding a suitable open source implementation in C for the LWM2M protocol with DTLS support. What I have found so far are following implementations: - Contiki lwm2m: https://github.com/sics-iot/lwm2m-contiki - Wakaama LWM2M: https://github.com/eclipse/wakaama - Awa LWM2M: https://github.com/FlowM2M/AwaLWM2M - Anjay: https://gi


Anybody using PIC32 and Harmony? Successfully?

Started by Dave Nadler in comp.arch.embedded3 weeks ago 1 reply

Select option -> Generate Code -> Build -> Build fails. Select different option -> Generate Code -> Build -> Build fails. Try yet another...

Select option -> Generate Code -> Build -> Build fails. Select different option -> Generate Code -> Build -> Build fails. Try yet another option -> Generate Code -> Build -> Build fails. Harmony is a giant framework where you select from hundreds of options (drivers, TCP stack, etc), then generate your application's frame. It favors a monster-loop state machine, at a point where the applica


Free 8051/8052 Keil C Sourcecode

Started by Anonymous in comp.arch.embedded3 weeks ago 1 reply

Visit 8051.duenna.science for Keil C software modules for 8051/ 8052 microcontrollers. https://8051.duenna.science

Visit 8051.duenna.science for Keil C software modules for 8051/ 8052 microcontrollers. https://8051.duenna.science


How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together?

Started by Anonymous in comp.arch.embedded3 weeks ago 11 replies

We do embedded software, but the hardware is produced by our customer (we don't control it). Sometimes we need to attach a wire (for monitoring...

We do embedded software, but the hardware is produced by our customer (we don't control it). Sometimes we need to attach a wire (for monitoring a serial or I2C interface, or for timing instrumentation) to a surface-mount IC where the pins are VERY close together. The pins are so close together that I can't solder a wire to it, even using high-power optics and the finest soldering i


what's the startup clock frequency of PIC1703

Started by Johann Klammer in comp.arch.embedded4 weeks ago 1 reply

I'd like to run from internal osc (XTAL pins as GPIO), but from the configuration bits it looks like it defaults to ext clk. I can't seem to...

I'd like to run from internal osc (XTAL pins as GPIO), but from the configuration bits it looks like it defaults to ext clk. I can't seem to find docs on their two speed startup and Fail-safe clock monitor thingy. Also, will LVP work?


Serial EEPROM or Serial Flash?

Started by pozz in comp.arch.embedded4 weeks ago 36 replies

I need to save some data on a non-volatile memory. They are some parameters that the user could change infrequently, for example 10 times per...

I need to save some data on a non-volatile memory. They are some parameters that the user could change infrequently, for example 10 times per day at a maximum. In the range 100-2kB. As usually occurs, the parameters that changes more frequently (10 times per day) are fewer than parameters that changes very rarely (10-100 times in the device lifetime). How to save those data? After d...


[AVR] What assembler to use?

Started by Johann Klammer in comp.arch.embedded1 month ago 14 replies
AVR

I've just been trying to use avra, but it outputs coff or something, so obdump has trouble disassembling it. I am also not sure how to link the...

I've just been trying to use avra, but it outputs coff or something, so obdump has trouble disassembling it. I am also not sure how to link the result(ihex have no symbol info). So now I believe the thing is next to unusable. Someone correct me if I am wrong, plz. Are there any other, usable alternatives to Gas that have usable macro constructs (+labels)?


Press Release - Reliable Software Technologies, Ada-Europe 2018

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

----------------------------------------------------------------------- FINAL Call for Participation ...

----------------------------------------------------------------------- FINAL Call for Participation *** UPDATED Program Summary *** 23rd International Conference on Reliable Software Technologies - Ada-Europe 2018 18-22 June 2018, Lisbon, Portugal ...


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