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Ethon Lin

Ethon Lin

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Ethon Lin
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Member, ModeratorsKL520, ModeratorsKL720, ModeratorsAIModel

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  • You can try the following link.  http://services.kneron.com.tw:7070/
    in Would you share the link that how to transfer .tflite file to ota.bin? (about Teachable Machine) Comment by Ethon Lin April 2022
  • It seems like Academy got some compatible issue on your PC. Please check the connection status of dongle and camera. Academy utility can only get the first camera(index 0) on your PC, we don't provide the selection of camera on tool.
    in Kneron Academy can' t access my notebook(Lenovo P14s) camera module(Realtek). Comment by Ethon Lin April 2022
  • Yes, they are only compatible on Win/Ubuntu now. But we will arrange some patches for you to make they work on Raspberry Pi. It should cost some time and we will inform you by mail after the patches are ready .
    in Register Raspberry PI device Comment by Ethon Lin April 2022
  • Hi Mishra, KL520 only can output the result of last layer in model. And due to the memory limitation, python or opencv is too large to process on KL520 (firmware). But the SDK "PLUS" we provided can do that easily. PLUS is a software SDK f…
    in Implement GRADCAM Comment by Ethon Lin April 2022
  • 一般來說，直接使用編譯好的tool是有可能遇到系統不相容，但目前尚未收過在同一個環境底下編譯後無法執行回報。 segmentation fault錯誤是因為不正確存取記憶體導致，可能的原因很多，建議可以找塊新的記憶卡重新安裝Raspbian後再試，耐能的網站上也有提供相關檔案下載…
    in KL520 使用自訓練模型遇到問題 Comment by Ethon Lin April 2022
  • Hi Myron, Now the applications on KNEO are only compatible with Windows and Ubuntu. Please run these applications on PC with these two OS. For your case, we will re-evaluate whether should we release the libraries for Raspberry Pi or not in the futu…
    in Register Raspberry PI device Comment by Ethon Lin April 2022
  • 建議還是跑一下，目前懷疑KL520內還是舊版host_lib的韌體導致沒辦法執行。透過DFUT tool可以確認FW的版本，也可以確保KL520是處於正常可以連結的狀態，相關部分可以參考連結的說明 http://doc.kneron.com/docs/#plus_c/getting_started/#2-upgrade-ai-device-to-kdp2-f…
    in KL520 使用自訓練模型遇到問題 Comment by Ethon Lin April 2022
  • Error: upload model failed, error = 'Error raised in function: load_model_from_file. Error code: 17. Description: ApiReturnCode.KP_ERROR_RECV_DATA_FAIL_17' About this step, there are 2 part about it Load your NEF model to buffer, please check the mo…
    in Inference error and firmware update error for KL720 Comment by Ethon Lin April 2022
  • Is your KL720 connecting to your PC with port 7? Or maybe you can try to execute without port parameter like " python3 KL720DemoGenericInferencePostYolo.py" instead of " python3 KL720DemoGenericInferencePostYolo.py --port_id 7". …
    in Inference error and firmware update error for KL720 Comment by Ethon Lin April 2022
  • Hello, 有鑑於Raspberry Pi上的DFUT tool容易受到環境影響而執行失敗，這邊建議你可以直接用C version在你的環境上編譯console版的tool 請參考該篇討論，裡面有相關的操作說明 https://www.kneron.com/forum/discussion/comment/905#Comment_905
    in KL520 使用自訓練模型遇到問題 Comment by Ethon Lin April 2022
  • 除了host_lib上你所提到的參數，燒錄在KL520中的firmware也會影響到結果的正確性。另外就是模型是透過新版的toolchain所生成，部分功能在host_lib架構下可能不支援，因此不敢保證是否完全相容，建議還是移到PLUS上運行 下面文章有針對host_lib轉換到PLUS上做相關說明，…
    in KL520 使用自訓練模型遇到問題 Comment by Ethon Lin April 2022
  •  dme inference failed:-2  表示透過DME模式執行推論失敗，這有可能是參數設定錯誤，或是KL520中的firmware沒有對應的配置。 但在PLUS中已經不再使用DME架構，詳細部分可以參考PLUS文件的說明 http://doc.kneron.com/docs/#plus_python/getting_start/
    in KL520 使用自訓練模型遇到問題 Comment by Ethon Lin April 2022
  • Hello, 請問官方給的腳本是指什麼呢? 文中所提到的host_lib為舊版的SDK，在去年已經停止更新，目前已全面更換成新架構的SDK <PLUS>。 若透過耐能所提供的yolov5 訓練方案可得到NEF模型，可以試著參考連結中的範例來執行該NEF模型 http://doc.kneron.com/docs/#pl…
    in KL520 使用自訓練模型遇到問題 Comment by Ethon Lin April 2022
  • Hello, To port your own model to KL520, you should check whether the operators in your model are supported or not first. Please refer to the chapter 2.3 Supported operators in following link. http://doc.kneron.com/docs/#toolchain/manual/#2-toolchai…
    in Implement GRADCAM Comment by Ethon Lin April 2022
  • Hello, KP_FW_INFERENCE_TIMEOUT表示與KL720溝通的PLUS(電腦端)等不到KL720回傳工作狀態，可能的原因有很多種，但因為KL720的資料前處理功能主要是在處理影像資料，使用audio model常因輸入的input data與model所需要的格式不同所造成。 可能要請你提供下面幾種資訊方…
    in kl720推理出現TIMEOUT問題 Comment by Ethon Lin April 2022
  • Hello, The issue could be caused by insufficient permission to access usb device. Please following the steps to set config for Kneron's device. http://doc.kneron.com/docs/#plus_python/introduction/install_dependency/#3-update-kneron-ai-device-usb-pe…
    in [KL520DemoGenericInferencePostYolo][Error code] ApiReturnCode.KP_ERROR_USB_TIMEOUT_N7 Comment by Ethon Lin April 2022
  • Hello, 32.768KHzk27 Xtal需依照使用挑選的用料來設計 如果時間要很精準, ppm越小越好 (eg. ±20 ppm@EVB);  不要求精準, 可以是幾百ppm..
    in Requstment of 32.768KHz crystal matched with KL520 Comment by Ethon Lin April 2022
  • Now KNEO utility (registering tool) is only compatible with Windows and Ubuntu, so there is no method to register device on Raspberry. But you can still register your device on another PC (Win, Ubnutu) and take KL520 back to raspberry pi after regis…
    in Register Raspberry PI device Comment by Ethon Lin April 2022
  • Or you can build a console DFUT instead of pre-built DFUT GUI tool we provided. step1: Download plus v1.3 here https://www.kneron.com/en/support/developers/?folder=Kneron%20PLUS%20(incompatible%20successor%20to%20host_lib)/Kneron%20PLUS/&downl…
    in Segmentation fault running KneronDFUT Comment by Ethon Lin April 2022
  • Here is the PRi image created by Kneron. To make sure your environment, maybe you can find a new SD card to install with it and try again. https://www.kneron.com/en/support/developers/ https://www.kneron.com/forum/uploads/751/CV4Y4Q5Z70XB.png
    in Segmentation fault running KneronDFUT Comment by Ethon Lin April 2022
  • Hello, For the error you posted before "pthread_create", you can try to delete the file /Kneron_DFUT_rsapberry_pi_1.3.0/Kneron_DFUT/lib/libpthread.so.0 and execute again. The application will load system default library instead. https://w…
    in Segmentation fault running KneronDFUT Comment by Ethon Lin April 2022
  • Hello, Are you using RaspberryPi4? The DFUT tool only supports RPi4 now.
    in Segmentation fault running KneronDFUT Comment by Ethon Lin April 2022
  • Hello, Please feel free to contact our sales < tony.lu@kneron.us > to get more detail.
    in KL520 38x38 board availability Comment by Ethon Lin March 2022
  • Hello, 錯誤看起來是沒有燒錄到fw_ncpu.bin或是所燒錄的fw_scpu與fw_ncpu的版本不合所導致。若要使用companion mode的話，目前已經更新置1.7版(log顯示所燒錄的是1.4版)，還請參考文件來更新 http://doc.kneron.com/docs/#plus_c/introduction/upgrade_ai_device_to_kd…
    in KL520 board ncpu error Comment by Ethon Lin March 2022
  • Hello, 如果減少calibration用的圖數量就可以成功轉換的話，也有可能是docker的記憶體不足所導致，可以試著調大virtualbox中的ram size來試試是否會改善
    in YoloV3 Tiny Model migrate Error Comment by Ethon Lin March 2022
  • Hello, 請問一下，原始模型是使用哪一種framework? 模型看起來沒有執行過3.1.5 ONNX Optimization，各種framework的模型在轉成onnx後都還需要再執行onnx_optimizer.onnx2onnx_flow()來確保符合NPU架構。
    in 再將model轉換成nef出錯 Comment by Ethon Lin March 2022
  • Hello, 從錯誤訊息來看，裡面似乎有不符合NPU架構的operator (unsupported cpu node in setup bin) 還請參考文件章節2.3的支援列表(http://doc.kneron.com/docs/#toolchain/manual/#2-toolchain-docker-overview )，移除模型中不被支援的節點後再試
    in 再將model轉換成nef出錯 Comment by Ethon Lin March 2022
  • Hello, 在不同的平台上DFUT需要不同的編譯器，因此，目前僅提供Windows10, ubuntu18.04以及RaspberryPi4的環境，沒有jetson nano相關的支援。
    in 在Jetson nano上開啟 KneronDFUT 失敗 Comment by Ethon Lin February 2022
  • Hello, KL720在使用上為了確保傳輸速度與供電穩定度，會要求連接USB3.0的環境。從DFUT上USB speed欄位顯示為high speed來看，KL720在你的樹梅派上僅連接到USB2.0，還請確認連接的USB孔與連接線是否都支援USB3.0 ，成功連接USB3.0的話將會顯示為super speed。
    in 樹莓派連接720問題 Comment by Ethon Lin February 2022
  • Hello, Yes, the input_names=["data_out"] means the input layer name. You can check it in https://netron.app/. https://www.kneron.com/forum/uploads/788/W462AIRVWYA3.jpg Can you show the error message you encountered to us for debugging? 2…
    in How do I infer with the ONNX model? Comment by Ethon Lin February 2022

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