NetX Duo BSD integration

[robmilne]

Has anyone successfully used the BSD addon for netxduo inside CubeIDE?  I followed the instructions at the top of https://learn.microsoft.com/en-us/azure/rtos/netx/netx-bsd/chapter2 (the #define TX_THREAD_EXTENSION_3 int bsd_errno needed a trailing semi-colon) but the netx timeval and fd_set definitions conflict with the CubeIDE environment (/ST/STM32CubeIDE_1.10.1/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.win32_1.1.1.202309131626/tools/arm-none-eabi/include/select.h and /ST/STM32CubeIDE_1.10.1/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.win32_1.1.1.202309131626/tools/arm-none-eabi/include/sys/_timeval.h).

My only reason for using BSD is to to implement ModbusTCP with libmodbus .  I would gladly opt for a native netx implementation of ModbusTCP if anyone knows of one.

[Haithem Rahmani]

hi @robmilne,

if you have a "nx_user.h" file in your project, please add the following

#ifdef __BSD_VISIBLE
#undef __BSD_VISIBLE
#endif

this should solve your problem.

 

regards
haithem.

 

[robmilne]

Hi Haithem,

Thanks!

Your code stops compiler errors for the NetXDuo BSD addon files, but I get build errors after I add the libmodbus sources to my project.  I think building my own ModbusTCP from scratch using NetX will be less complicated than figuring out how to make this sockets-based library work with CubeIDE.  I did find a Renesas project that integrated libmodbus with NetX+BSD, but it was tailored to their environment and the libmodbus version was not current.

Btw, I had already reached this point by defining __BSD_VISIBLE as 0 in ..\tools\arm-none-eabi\include\sys\features.h, but your method is much better.

-rob

[Sky-Runner87]

Hello, thank you for your assistance. I also encountered the fd_set conflict issue when using the IDE, and defining nx as 0 did not resolve it. Do you have any other suggestions or solutions?

[robmilne]

Unfortunately, no. I abandoned this approach and modified my modbustcp library to use native NetX.

[WHam.1]

May be my  you tube site will help you even though the speaking language is korean. 

https://www.youtube.com/watch?v=YVdNClVnT1s

 

[WHam.1]

Please refer to my new youtube  for simpletest ECAT Master program Developed on STM32F769I-DISC board by using nxd_bsd and Netx Duo in Azure RTOS  operating combined with XMC4800 ECAT Slave Board.   

 

https://studio.youtube.com/video/NWQJTNXTehI/edit

 

[WHam.1]

Neglect  my previous reply. Sorry for that.

 

Please refer to my new youtube  for simpletest ECAT Master program Developed on STM32F769I-DISC board by using nxd_bsd and Netx Duo in Azure RTOS  operating combined with XMC4800 ECAT Slave Board.   

https://www.youtube.com/watch?v=NWQJTNXTehI

 

[JongOk Baek]

Hello, robmilne.

 

I reached same error such as you.

Description	Resource	Path	Location	Type
expected ':', ',', ';', '}' or '__attribute__' before 'ULONG'	tx_api.h	/ZMG-390AZ_BSD/Middlewares/ST/threadx/common/inc	line 630	C/C++ Problem

So, I modified definition below. (with ';' semicolon end of the line)

#define TX_THREAD_EXTENSION_3						int bsd_errno;

 but, I reached error message below

I'm getting errors redefining libraries and definitions under internal gnu tools.

 

So, I uncomment the definition below in nxd_bsd.h

#define NX_BSD_RAW_SUPPORT
#define NX_BSD_ENABLE_NATIVE_API

Finally, the definition below throws an error:

#define NX_SOC_ERROR 	-1 /* Failure. */

'expected identifier before '-' token'

 

I wonder if this issue has been resolved.

Best regards,

 

 

 

[robmilne]

Hi JongOk,

I abandoned this effort quite a while back. Sorry

-rob

[JongOk Baek]

Hi rob.

Thanks for your reply.

I continued to do the check-up for a few more days.

The problem was in '#define' command.

#define NX_SOC_ERROR -1 /* Failure. */
#ifndef ERROR
#define ERROR NX_SOC_ERROR
#endif

The 'ERROR' constant also exists in the standard library, causing a conflict.

So, I modified this constant as below. And I replaced from ERROR to BSD_ERROR in nxd_bsd.c file.

#define NX_SOC_ERROR 	-1 /* Failure. */
#ifndef BSD_ERROR
#define BSD_ERROR NX_SOC_ERROR
#endif

 

Now, error is gone.

 

I will try to do TCP/UDP Test code with nxd_bsd.

 

Best regards,