Issue with AI Model Validation on STM32H747I-DISCO

[Dresult]

Hi everyone,

I'm trying to perform a validation test on an STM32H747I-DISCO, but I haven't been able to get it working.

Here's what I'm doing:

1. On the ST Edge AI Developer Cloud, I select the model "CNN2D_ST_HandPosture_8classes_hand_posture_ST_VL53L5CX_handposture_dataset.h5", then proceed to quantize and optimize it.
2. I run a benchmark and then download the project for STM32CubeMX 6.14.
3. I open the project and, in the Software Packs, I select "Device Application" for the M7 core and enable the "Validation" option under STMicroelectronics.X-CUBE-AI. I then save the project.
4. Next, I open the generated project in STM32CubeIDE 1.18, compile the code for the M7 and M4 cores in Release mode, and program the STM board. So far, everything works fine. When I press the reset button I can see 

#
# AI Validation 7.1
#
Compiled with GCC 13.3.1
STM32 device configuration...
 Device       : DevID:0x0450 (STM32H743/53/50xx and STM32H745/55/47/57xx) RevID:0x2003
 Core Arch.   : M7 - FPU  used
 HAL version  : 0x010b0500
 SYSCLK clock : 400 MHz
 HCLK clock   : 200 MHz
 FLASH conf.  : ACR=0x00000032 - latency=2
 CACHE conf.  : $I/$D=(True,True)
 Timestamp    : SysTick + DWT (delay(1)=1.002 ms)

ST.AI RT
--------------------------------------------------
 tools version   : v2.0.0
 network rt lib  : v10.0.0-fd22b7f9
   compiled with : GCC 11.3.1

Discovering the network(s)...

Found network "network"
Creating the network "network"..
Initializing the network
Network informations...
 model name         : network
 model signature    : 0x8f1b6d2aab7b9895e6460ef525012bb0
 model datetime     : 2025-03-23T17:34:47+0100
 compile datetime   : Mar 23 2025 17:35:55
 tools version      : 2.0.0
 complexity         : 8200 MACC
 c-nodes            : 4
 map_activations    : 1
  [0]  @0x20000000/1152
 map_weights        : 1
  [0]  @0x8010860/2896
 n_inputs/n_outputs : 1/1
  I[0] (1,8,8,2)128/i8 1:(0.003921,-128), @0x20000400/128
  O[0] (1,1,1,8)8/i8 1:(0.003906,-128), @0x200003E8/8

-------------------------------------------
| READY to receive a CMD from the HOST... |
-------------------------------------------

# Note: At this point, default ASCII-base terminal should be closed
# and a serial COM interface should be used
# (i.e. Python ai_runner module). Protocol version = 3.1
​

• Now, I open from the IDE the .ico file, navigate to Pinout & Configuration -> Middleware and Software Packs -> X-CUBE-AI, and try to perform a validation. However, I get the error: LOAD ERROR: STM32 - read timeout 50007.9ms/50000ms

I tried to send random data (in the shape expected from the network) using python Serial and then reading them through picocom. In that case I can see unknow characters as the bytes are converted in ASCII. So, I suppose that the network gives some output...

Any suggestions on how to fix it?

Thanks in advance!

[Julian E.]

Hello @Dresult ,

Thank you for your message.

I have seen it one or two times, but I never got to have the user model to test it out.

I don't have a H7 with me today, I will test it out tomorrow.

I'll update you when I know more

Have a good day,

Julian

[Dresult]

Hi Julian,

thanks a lot! Let me know if you need more information or if I can help in someway.

Looking forward to your update, have a good day too!