DDCMP and 68302

Started by Anonymous in comp.arch.embedded1 month ago 3 replies

Does anyone know anything about DDCMP and the 68302 chip. We have some software that uses it in asynchronous mode over RS485 and we want to see...

Does anyone know anything about DDCMP and the 68302 chip. We have some software that uses it in asynchronous mode over RS485 and we want to see if we can emulate the DDCMP behaviour on another product without the 68302 micro so that we can communicate with the existing product but from a new device with a different microprocessor. The 68302 manual says that in asynch mode when i


"Boost context" for task switching on embedded Linux on ARM

Started by Anonymous in comp.arch.embedded1 month ago 20 replies

Following on from my recent question about PThreads I have a new question about...

Following on from my recent question about PThreads I have a new question about Boost:context https://www.boost.org/doc/libs/1_67_0/libs/context/doc/html/index.html We have some legacy code(Motorola 68000 C) that we want to use that has cooperative task switching. We want to run it all as a single thread and keep its co-operative organization within that thread. Is "Boost context" a


what's the startup clock frequency of PIC1703

Started by Johann Klammer in comp.arch.embedded1 month ago 9 replies

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?


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

Started by gp.k...@gmail.com in comp.arch.embedded2 months ago 49 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).


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

Started by Anonymous in comp.arch.embedded2 months ago 12 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


FTP server

Started by Martin Kaul in comp.arch.embedded2 months ago 5 replies

Hi, does anyone know an FTP server for embedded systems. best regards & thanks Martin

Hi, does anyone know an FTP server for embedded systems. best regards & thanks Martin


FreeRTOS memory footprint reduction at build time

Started by John Speth in comp.arch.embedded2 months 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.embedded3 months 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 months 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 months 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


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