Edge AI

I am trying to debug AI application via FSBL (generated itself in STM32cube AI studio) , I have attached the debugger settings and Problem hereby. I had added some printf statements also in between , whose Teraterm output I have attached.Kindly help. RegardsChanchal 

Hello!I am having trouble verifying NPU operation on the NUCLEO-N657X0-Q board.I am trying to test a simple INT8 FNN (Feed-Forward Neural Network) using an ONNX model. The project was generated via X-CUBE-AI within CubeMX. I have configured the AXI and Clock settings (CPU: 600MHz, NPU: 800MHz, NPU AXI: 800MHz) and, given the model's simplicity, I set it to use internal SRAM only.While the code execution seems to flow correctly without errors, I noticed that the output values are not being updated. The output buffer remains unchanged, or in some cases, still holds values that look like the input data. It seems the NPU's computation results are not being written back to the memory correctly.I would greatly appreciate any advice or suggestions, even if they aren't complete solutions!Environment Versions:CubeIDE: 2.1.1CubeMX: 6.16.1CubeProgrammer: 2.22.0ST Edge AI: 4.0ST-LINK: V3J17M10I have attached one of the project files I’ve been testing for your reference. Thank you always for your s

 Hello,I’m working on a project generated by STM32Cube AI Studio targeting the NUCLEO-N657X0-Q, using an XIP configuration with external XSPI flash ( It was said in another post that the generated projects from STM cube AI Studio follow XIP configuration).SetupBoard: STM32N657X0-QToolchain: STM32CubeIDE(2.1.1) + STM32CubeProgrammer(2.22.0)Project generated with STM32Cube AI StudioExecution mode: XIP (application in external flash)Runtime: Bare metal (LL_ATON_OSAL_BARE_METAL)Memory mappingModel location (from generated network.c):.addr_base = (unsigned char *)(0x71000000UL)Programming stepsI programmed manually using STM32CubeProgrammer:second_Appli.elf network_atonbuf.xSPI2.bin → placed at 0x71000000Debug configuration (FSBL project)I start debugging from the FSBL project.In Debug Configuration → Startup → Load Image and Symbols, I configured:second_Appli.elfDownload = OFF (already flashed manually)Load symbols = ONSo FSBL is loaded/debugged, while App and model are already p

Hi! I’m working with the STM32N6570-DK board using an object detection AI model, and I would like to manually modify the camera parameters. I believe settings such as exposure, white balance, and similar controls are currently configured automatically, but I want to use fixed/manual values instead.I already tried modifying the cmw_camera.c file, but nothing changed. Which files do I actually need to modify in order to set specific camera parameter values? Do I need to use a dedicated tool for this?I’m using the IMX335 camera module.  

Hello,I am currently experiencing difficulties using the STM32N6 NUCLEO board.My goal is to test NPU execution using X-CUBE-AI within CubeMX. However, I am stuck in an infinite loop inside the MX_X_CUBE_AI_Process function. Specifically, LL_ATON_RT_RunEpochBlock() continuously returns only the LL_ATON_RT_DONE status, preventing the loop from terminating as expected. do {ret = LL_ATON_RT_RunEpochBlock(&NN_Instance_Default);if (ret == LL_ATON_RT_WFE) LL_ATON_OSAL_WFE();} while (ret != LL_ATON_RT_DONE); I Can't get the LL_ATON_RT_DONE, only LL_ATON_RT_WFE.This issue persists even when using files generated via Cube AI Studio.I have configured the AXI and Clock settings in CubeMX (CPU: 600MHz, NPU: 800MHz, AXI: 800MHz). Since the model is simple, I am using internal memory only and have not enabled any security (TrustZone) or external memory settings.Environment Versions:CubeIDE: 2.1.1CubeMX: 6.16.1CubeAI Studio: 1.1.0CubeProgrammer: 2.22.0ST Edge AI: 4.0ST-LINK: V3

Hi, I am trying to deploy a custom object detection model on the STM32N6-Nucleo board.I started with this:https://github.com/STMicroelectronics/stm32ai-modelzoo-services/tree/main/object_detectionThe training gets done, I get the performance metrics,python stm32ai_main.pyThe deployment code works fine, and I get the deployment complete message. But when I change from development mode to flash boot mode. It doesn't detect the camera.When I program the demo camera.hex filehttps://github.com/STMicroelectronics/x-cube-n6-camera-capture/tree/main/Binary/NUCLEO-N657X0-Qor object detection .hex file,https://github.com/STMicroelectronics/STM32N6-GettingStarted-ObjectDetection/tree/main/Binary/NUCLEO-N657X0-Q/USB-UVC-Displaythe camera works perfectly.Below are the training and deployment configuration files. These are the only files I changed. I would really appreciate any help in this regard. Thank you,# training configure.yaml file:general:project_name: custom_food_yoloxn_256logs_dir: logssav

Hey there, I have run into an issue while trying to using the new edge AI-studio software. I try to make a run such that I am able to the reach the generate project page.However, currently, I am stack at the point where the pipe running in the EDGE AI studio tries to use the STM32 cube programmer, I think to run the binary and verify it works before proceeding to provide the generated project page.My set up includes a custom made board, set in DEV boot, and an st-link v3 pwr connected to the custom board. I can confirm that I am able to program the board using cube programmer. I am also able to debug the code programed to this board using XIP paradigm , there for I think the connection there is okay,The custom boards OCTO XSPI is very similar to that of the stm32n6570.DK as I am able to use the default bootloader for the dev board to be able to program it.How ever the logs from running the cube AI studio say Run failed: Error: STM32CubeProgrammer exited with code 1I attached

Hello,I am trying to create a project with Cube AI studio v1.2.My toolchain and libraries are well detected with Cube AI studio v1.1, and I can create a project.However, it is not the case for the Cube AI studio v1.2. The toolchain paths seem valid, but when creating a project no IDE is proposed at all, as shown in the attached image. Could you help me please ? No debug logs are generated. Versions :Cube AI studio : 1.2CubeMX : 6.17CubeIDE: 2.1.1CubeProgrammer : 2.22.0EdgeAICore : 4.0 

Hello ST Community, I am trying to run a TFLite model on the Neural-ART NPU of the NUCLEO-N657X0-Q board using STM32CubeIDE + STM32CubeMX and STM32Cube AI Studio. I followed the guide here: https://community.st.com/t5/stm32-mcus/how-to-build-an-ai-application-from-scratch-on-the-nucleo-n657x0/ta-p/828502 but with my own TFLite model. Model details: Architecture: 5x FullyConnected layers (41→32→32→16→8→1) with ReLU activations Input: int8[1,41], scale=0.0717, zero_point=-24 Output: int8[1,1], scale=0.0354, zero_point=1 Task: binary classification Problem: I have 31 test samples. Every sample produces the same output value 53 regardless of input. I verified the inputs are correctly quantized and different for each sample. What I investigated: Through per-epoch debugging I found the following epoch flow: EP0 (HW): reads input EP1 (HW): continuationEP2 (SW): DequantizeLinearEP3 (SW): Conv float → writes correct floats EP4 (hybrid): outputs ALL ZEROS EP5 (HW): reads zeros → always pr

Hi everyone,I'm encountering a blocking issue while trying to start an inference on a NUCLEO-N657X0-Q using STM32Cube AI  Studio and STM32CubeProgrammer.The connection to the board via SWD seems successful, but the process fails during the memory programming phase.        -------------------------------------------------------------------                       STM32CubeProgrammer v2.22.0                         -------------------------------------------------------------------  ST-LINK SN  : 002F00223234510333353533ST-LINK FW  : V3J17M10 Board       : NUCLEO-N657X0-Q Voltage     : 3.28V SWD freq    : 8000 KHzConnect mode: Under ResetReset mode  : Hardware reset Device ID   : 0x486 Revision ID : Rev Z Device na

Hello ST Community,I am currently developing a coin recognition vision model (MobileNetV4) to be deployed on the NUCLEO-N657X0-Q (STM32N657X0H3Q) board. I am trying to fully utilize the integrated NPU using STM32Cube.AI.[My Approach] To maximize feature extraction of the coin's engraved patterns, I am using a Photometric Stereo-like approach. I capture 4 grayscale images using a global shutter camera with 4 directional lights (Top, Bottom, Left, Right). My goal is to stack these 4 images into a single 4-channel tensor (H x W x 4) and feed it directly into the NPU. I have already modified the first Conv2d layer of my PyTorch model to accept in_chans=4 and trained it successfully.[The Issue] When trying to validate and deploy this model, I encountered the following constraints regarding the Neural Network Input:"Only RGB888 format is tested for Neural Network Input.""Only UINT8 format is supported."The UINT8 constraint is perfectly fine for our quantization pipeline. However, the RGB888

STM32N6 NPU – Why does ROM size increase for some models after Neural-ART compilation?Hello,I noticed an interesting behavior while comparing STM32N6 CPU execution vs NPU execution using ST Edge AI + Neural-ART.For a simple Dense/Fully Connected (ad.tflite) model, enabling the NPU did not significantly change the weights size:CPU target:weights (ro): ~270 KBNPU target:weights (ro): ~269 KBSo the compiled NPU representation stayed almost identical.However, for a VWW/MobileNet-like model using many DEPTHWISE_CONV_2D layers, I observed a large ROM increase after enabling the NPU:CPU target:weights (ro): ~42 KBNPU target:weights (ro): ~227 KBAt first I thought this was caused by the quantization format conversion:CPU:model_fmt : ss/sa per channelNPU:model_fmt : ss/sa per tensorBut I also tested ResNet model where the same quantization conversion occurs, without a major ROM increase.So it seems the quantization format change alone is not the main reason.My questionCan ST confirm whether:Neu

Hello,I am trying to deploy a custom image classification model (bacteria classification) on the NUCLEO-N657X0-Q board using the STM32 AI Model Zoo v4.0.0 deployment pipeline.What works:The pre-built flower classification hex from Binary/NUCLEO-N657X0-Q/USB-UVC-Display/NUCLEO-N657X0-Q_GettingStarted_ImageClassification-uvc.hex works perfectly — camera streams via USB UVC and classification is displayedTraining a custom EfficientNetV2-B0 model (128×128 input, 5 classes) completes successfully with 100% validation accuracyQuantization (ONNX PTQ uint8) completes successfullyThe Model Zoo deployment script (operation_mode: deployment) successfully:Compiles the model via ST Edge AI Developer CloudGenerates C code and librariesBuilds the STM32CubeIDE project (UVCL_ModelZoo configuration)Signs the binary using STM32_SigningTool_CLIWhat does NOT work:After flashing the generated files to the board, the firmware does not boot — no serial output (tested at 115200 and 921600 baud), no USB UVC cam

Hello,I am experiencing two issues that started after updating STM32CubeAI Studio. Both worked correctly before the update.---Environment- Board: NUCLEO-N657X0-Q- STM32CubeAI Studio: latest update (STEdgeAI Core v4.0.0)- STM32CubeIDE: 2.1.1- STM32CubeProgrammer: v2.22.0- ST-LINK FW: V3J17M10- Model: MobileNetV3-based custom model (ONNX), int8 quantized and float variants---Issue 1: Build failure – CMSE stub too far (float model)When using a float ONNX model (~19 MB weights), the Appli build fails with:ERROR: CMSE stub (.gnu.sgstubs section) too far (0x135e520) from destination (0x52f0)collect2.exe: error: ld returned 1 exit statusAdditionally, the linker reports multiple memory regions not declared in the generated `STM32N657X0HXQ_LRUN.ld`:warning: memory region 'AXISRAM2' not declaredwarning: memory region 'AXISRAM3' not declared... (AXISRAM4, AXISRAM5, AXISRAM6, XSPI1, XSPI2, ROM)This build succeeded before the update with the same model.---Issue 2: Flash failure – flash loader canno

In an Edge AI audio project that I'm working on, there is SAI2 peripheral that stops audio transmission after a while when the AI algorithm in the while loop of the main.c has done some inferences.The AI algorithm code was generated with Cube AI Studio and, when STM32CubeAI_Studio_AI_Process() is commented, the SAI peripheral works normally without interruptions.The board used is a NUCLEO-N657X0-Q.The version of software used is:-ST Edge AI Core: version 4.0.0-STM32CubeIDE: version 2.0.0-Cube AI Studio: version 1.1.0I've tried to search on internet for a solution and there is no material concerning it! I've tried to ask for help in other posts, but nobody helped me. Can somebody try to explain why and find a solution? I'm desperate and I don't know what to do for my project but withdraw. 

Hello , i wanted to know what the process of debugging projects generated by Cube Ai Studio ? The automatic flash from cube ai studio to the board works , but when i wanted to debug the exported projected via stm cube ide , it doesnt work , can u please share a tutorial of whats the recommended process ?Im using the nucleo n657x0-q board  

I have project consisting of FSBL+Application (writing AI code in application), I want to debug application code, but unable to do it . My core doubt is should I go via FSBL debugging or Application debugging while working with real time detection in AI ? I am very much confused in this application debugging, kindly address it.I have ensured the external memory loader in cube Programmer as well as in debugger settings is same & loaded .I had flashed the binaries in cube programmer FSBL-trusted bin at 0x70000000 and application trusted-bin at 0x70100000 and signed them also. I have attached a word document having screenshots of debugger settings and problems coming in debugging for each directly application and via FSBL. & one screenshot of external memory settings in .ioc file.Thanks & RegardsChanchal

Hello, I am trying to run Validate on target on a NUCLEO-N657X0-Q board using X-CUBE-AI 10.2.0, but it consistently fails. I would appreciate any guidance. Environment: Board: NUCLEO-N657X0-Q X-CUBE-AI: 10.2.0 STM32CubeMX / STM32CubeIDE: latest OS: Windows 11 Model: ONNX (MobileNetV4-Small based, input [1,4,224,224] float32, 2 outputs) What works: Analyze: OK (Flash 46.75MB, RAM 3.78MB) Generate: OK Validate on desktop: OK (acc=100%, nse=1.0) Board detected: ST-Link Virtual COM Port on COM5 Firmware flash reports: Start operation achieved successfully Problem: When running Validate on target via STM32CubeMX:     Running the ST.AI c-model (AI RUNNER)...(name=network, mode=TARGET)Proto-buffer driver v2.0 (msg v3.1) (Serial driver v1.0 - COM5:921600)Warning: C-network signature checking is skipped on ST Neural-ART NPULOAD ERROR: STM32 - read timeout 50000msValidation ended When running stedgeai CLI directly (after manual build via n6_loader.py):   &nbsp

 Dear all,For the STM32N6570-DK kit, is there a simple tutorial that shows the workflow for integrating a model generated by STM32Cube AI Studio into a project?A simple example would be: if an image is detected, we could turn on an LED on the kit.A guide would be very welcome. Many thanksCheersEmmanuel

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Hi everyone,I’m working on a Driver Monitoring System (DMS) pipeline on the STM32MP25 and trying to understand both NPU utilization and overall performance limitations.Setup details:Platform: STM32MP25Framework: stai_mpu_network (using .nb models with use_hw_acceleration=True)Camera pipeline: GStreamer (appsink + cairooverlay)Current performance: ~15 FPSGPU load: ~25%Models in use:Face Detection (.nb) → runs every frameFace Landmark (.nb) → runs every 3 framesIris Landmark (.nb) → runs every 3 frames (same schedule as landmarks)YOLOv8n (Smoking/Calling, .nb) → runs every 3 frames (offset scheduling)Scheduling logic:Face detection: every frameLandmark + eye models: frame_count % 3 == 0YOLO model: frame_count % 3 == 1So not all models are executed every frame, but FPS is still limited to ~15.Questions:1. NPU verificationEven though .nb models are used with HW acceleration enabled, I don’t have confirmation that inference is actually running on the NPU.How can I verify that the NPU is bei

Hello! Has anyone tried to deploy multiple neural networks on a stm32n6 at once? I'm developing an application which requires 5 NN. I created 5 .c libraries to deploy each NN on the NPU, I assume is because of the APIs that they overlap. So I'm curious if anyone has tried this and how it was solved. My last  option is to create a bigger models that contains all 5 on onnx, then deploy it, idk if someone knows if this could work to. 

Hello,I have downloaded the stedgeai for Linux on windows pc and transferred to Linux system running Ubuntu 22.04 .i want to know is it possible to install it in a headless mode where I don’t have to do or click anything on the gui as my Ubuntu system is all console based with no gui.whenever I try to run ./Linux installer I am getting this error ./-linux-onlineinstaller: error while loading shared libraries: libxkbcommon-x11.so.0: cannot open shared object file: No such file or directoryplease let me know how to install it on a headless system.bestR

Hello,I have recently installed and launched stm32cubeai studio latest version and it appears to be hung at launch screen with progress bar in motion.I have tried to close this from task window and tried uninstalling and installing it but still same issue.restarted the pc as well. What could be the issue. I have still 10 gb of hard disc space left. Br, 

Hi there,I am trying to deploy a quantized LiteRT (TF Lite) stateless LSTM model to a Nucelo-H723 using CubeMX, X-Cube-AI, and CubeIDE. However, when I go to compile the generated code in CubeIDE, I get the following linker errors (full console output at bottom of this post) related to undefined references to arm_vector_sum_s8, arm_nn_vec_mat_mul_result_acc_s8_s16, and arm_nn_activation_s16 from the NetworkRuntime1020_CM7_GCC.a static library. Any suggestions on what the fix might be?  Additional configuration information:We configure CubeAI inside of CubeMX to flash the system performance variant, and can load and analyze our LSTM model within the Cube-AI window in CubeMX with no issues.We also configure the H7 to use icache, dcache, CRC. We've been able to run other models (MLP) with no issues.Console Error:C:/ST/STM32CubeIDE_1.19.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.14.3.rel1.win32_1.0.100.202602081