NUCLEO-N657X0-Q STM32CubeIDE NetXDuo

[GEKO]

Hi everyone,

for several days I've been trying to replicate the Nx_TCP_Echo_Server application example by creating a project with the .IOC file, but I can't establish Ethernet communication.

If I compile and run the example, everything works, but my application doesn't. I'll send you my project if anyone can help.

Alternatively, can someone point me to a simple TCP stack without using an RTOS? Thanks so much for your help.

I'm using a NUCLEO-N657X0-Q board, STM32CubeIde 1.19

[STackPointer64 · Accepted solution]

Hello @GEKO, and welcome to ST Community!

After reviewing your project, it seems two important configurations were missing:

1. The External Loader (MX25UM51245G_STM32N6570-NUCLEO.stldr) was not specified in your Debug/Run settings.
2. The definition of the NX_Pool Buffer was not added in the app_azure_rtos.c file.

/* USER CODE BEGIN NX_Pool_Buffer */
#if defined ( __ICCARM__ ) /* IAR Compiler */
#pragma location = ".NetXPoolSection"
#else /* GNU and AC6 compilers */
__attribute__((section(".NetXPoolSection")))
#endif
/* USER CODE END NX_Pool_Buffer */​

Best regards,

[GEKO]

Thanks @STackPointer64 for the support. I added the points you indicated, but the situation hasn't changed.

The application threads are running correctly, but the DHCP process doesn't seem to start.

[STackPointer64]

Hello,

After retesting and downloading your project with the suggested adjustments, I can confirm that it works. As shown in the Wireshark screenshot below, the board is discovered by the DHCP server and obtains a valid IP address. I was able to successfully ping the board and receive responses.

As a suggestion, please ensure your DHCP server is functioning correctly. You might also have made other changes in your project. To help, I have attached a copy of the working project—please build and flash it to your MCU, then share your feedback. I’ll be happy to assist further.

Best regards,

[GEKO]

Thanks again for your support.
I tested the code you submitted and confirm it works.
I checked with my code and I had mistakenly entered the definition

#if defined ( __ICCARM__ ) /* IAR Compiler */
#pragma location = ".NetXPoolSection"
#else /* GNU and AC6 compilers */
__attribute__((section(".NetXPoolSection")))
#endif

under the function

__ALIGN_BEGIN static UCHAR nx_byte_pool_buffer[NX_APP_MEM_POOL_SIZE] __ALIGN_END;

static TX_BYTE_POOL nx_app_byte_pool;

and consequently the buffer was not assigned to the correct section.

Thanks again for your support