[Bug]: Driver 1.4.0 Network not working Nucleo-STM32H753

[FerdinandEn]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

I have a few test programs for basic network functions on STM32 controllers. I started by updating a Nucleo-STMf756 to the new driver. In doing so, I noticed that a larger memory area needs to be defined for the RX buffer (ARM-software/MDK-Middleware#150 (comment)).

After the adjustment, the programs ran without requiring any further adjustments.

Next, I was supposed to make the same change for the STM32H753. Even after adjusting the RX memory area, the programs still won't run. The board doesn't respond to a ping either. If you use driver version 1.3.0, everything works as expected.

During my tests, I also noticed that after upgrading to Middleware 8.3.0, the Component Viewer shows "-1" under Interfaces. This occurs regardless of whether the program is working (Driver 1.3.0) or not working (Driver 1.4.0).

With Driver version 1.4.0 STM32H753-HAL_ETH_TxCpltCallback(() is never called.

Expected Behavior

The H753 test program performs the following task. I launch a TCP echo program on the PC. This program receives a message from the controller and sends it back to the controller. The data received by the controller is displayed on a serial terminal (115200, 8,n,1). The command to run the PC program is:

.\echotool.exe /p tcp /s 2000

PC 192.168.7.254
Controller 192.168.7.1

Steps To Reproduce

• Win 11
• VSC 1.121.0
• Csolution 2.14.0
• CMSIS Soluition 1.67.2

Use attached program

1. Compile and Test program (Driver 1.3.0)
2. Start debugger
3. start echotool
4. See serial Terminal output
5. Modify CubeMX.cbuild-pack.yml change entry to ARM::CMSIS-Driver_STM32@1.4.0
6. Use Rebuild Solution to use new pack setting
7. debug again - program fails

You can also try ping

101-STM32H753-Network-TCP.zip

Version

Keil::MDK-Middleware@8.3.0
ARM::CMSIS-Driver_STM32@1.3.0 (ok)
ARM::CMSIS-Driver_STM32@1.4.0 (fails)

Blocker

• blocker

[FerdinandEn]

Same problem exists for STM32H563 (Nucleo-Board)

[Tecnologix-GR]

I'm seeing the same issues on an STM32H743.
As I can see, the "Interfaces Available: -1" error is due to a change in the "Network.scvd" file of the MDK-Middleware, line 1201, where value is
"Available: %d[__size_of("net_if_list_all")/4-1],
instead of "Available: %d[__size_of("net_if_list_all")-1]".
So it's not related to the CMSIS-Driver.

[FerdinandEn]

@Tecnologix-GR Thanks for letting me know. After the patch, the display was correct.

[FerdinandEn]

@furbanc My project for the STM32H753 also runs on a Nucleo H743. The only additional feature of the H753 is the crypto unit.

[furbanc]

@Tecnologix-GR Thanks for letting me know. After the patch, the display was correct.

The change in Network.scvd was introduced when the System Viewer was added to the Arm CMSIS Debugger Extension. The behavior of the __size_of() built-in function initially differed and returned the number of bytes. This was later changed to align with the documentation. The correction will be included in the next release of MDK-Middleware.