CODESYS Forge - CODESYS Forge / Talk / Engineering 🇬🇧: SHARED MEMORY

SHARED MEMORY

Forum: Engineering 🇬🇧

Creator: TONY STARK

Created: 2021-05-27

Updated: 2021-05-28

TONY STARK - 2021-05-27

Hi

How to create a link between C application and the Codesys application to refer a shared memory.

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i-campbell - 2021-05-27

Hi Tony,
from https://forge.codesys.com/prj/
you will find:
https://forge.codesys.com/prj/linux-integr/home/Home/
and https://forge.codesys.com/prj/codesys-example/shared-memory-c/home/Home/
Ian

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TONY STARK - 2021-05-27

Hi Campbell

I want to use shared memory concept and share the data between the Codesys Application and C application on a Linux platform.

I have prepared the project too, but i am facing issues with SysShm libraries.

Can you guide me how to crate share memory?

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Thomas - 2021-05-27

Hi Tony,
Ian shows you the correct link and if you compile the "\SharedMemoryCLinux\myshm.c" you can communicate between the codesys and your compiled c-application:

Here are my test on a raspberry:

Regards

SharedMem.png

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Hi Thomas

          I hope the example is developed for Codesys Control V3 64 and Codesys Soft Motion RTE?
          Am i right?

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