How can i use libmodbus in Embedded Linux

Technical Support
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1

Hi,
I’m working on the libmodbus library. I can communicate between the virtual and host computer using the libmodbus interface. But when I try to compile the same code and libraries for the colibri device, I get the “modbus library not found” error. How can I run the libmodbus library for embedded linux? What should I do, how to add the modbus library for cross-compilation to embedded linux.
Thanks…

2

Without knowing much of anything about this libmodbus I guess you would need to build a custom BSP image with libmodbus integrated by adding it to IMAGE_INSTALL in conf/local.conf (e.g. IMAGE_INSTALL_append = " libmodbus").

3

First of all, thanks for the response. But I wonder if it’s not possible to use this library without what you’re talking about?

4

You are, of course, very welcome to find any other way.

5

Have you made any progress on incorporating libmodbus into Embedded Linux?

I am trying to use the same library on Apalix iMX6, but I can’t figure out how to compile on device or cross-compile. I am open to other Modbus libraries, but have not found any yet.

6

Hi @aronreman17

Have you tried out the solution proposed below by @marcel.tx.

Best regards,
Jaski

7

Well, first I was interested if the solution proposed by @marcel.tx was actually tested successfully before I committed to making changes to the BSP. So, no I have not tried this solution yet, but I am also interested to see if anyone was able to incorporate the library without modifying the BSP.

8

We haven’t tested this. You are free to try it out.

Best regards,
Jaski