# Rtl8735b LAN, USB host, AI **URL:** \ **Category:** Peripherals\ **Tags:** 中文, rtl8735b\ **Created:** [November 12, 2025, 2:20am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514 "2025-11-12T02:20:35Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![termy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/termy/32/2099_2.png) [@termy](https://forum.amebaiot.com/u/termy)\ **Post date:** [November 12, 2025, 2:20am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/1 "2025-11-12T02:20:35Z")
您好, 我們目前使用 rtl8735b 在開發產品, 有下列幾項需求想請教, 1. ethernet\_mii 是否有動作 ? 2. How to use rtl8735b as usb host ? (via usb cdc to connect LTE module) 3. 是否有轉換 tensorflow lite model 的 tool 可使用 ? 謝謝您 ---
**Author:** ![Pammy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/pammy/32/936_2.png) [@Pammy](https://forum.amebaiot.com/u/Pammy)\ **Post date:** [November 14, 2025, 6:44am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/2 "2025-11-14T06:44:59Z")
您好 @termy ， 您是使用 Arduino SDK 嗎？您可以先參考 FreeRTOS SDK。以下功能已經支援了： 1. ethernet\_mii - [component/ethernet\_mii](https://github.com/Ameba-AIoT/ameba-rtos-pro2/tree/main/component/ethernet_mii) - [example\_sources/ethernet\_mii](https://github.com/Ameba-AIoT/ameba-rtos-pro2/tree/main/project/realtek_amebapro2_v0_example/example_sources/ethernet_mii) 1. usb host - [component/usb](https://github.com/Ameba-AIoT/ameba-rtos-pro2/tree/main/component/usb) 1. Tensorflowlite model 想瞭解一下，您是想轉換 .tflite 到 .nb 然後在 pro2 開發板運行嗎？ 綫上轉換不支援， 但可以考慮使用綫下轉換。 - [Offline AI Model Conversion – Realtek IoT/Wi-Fi MCU Solutions](https://www.amebaiot.com/en/offline-ai-model-conversion/) ​ ---
**Author:** ![termy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/termy/32/2099_2.png) [@termy](https://forum.amebaiot.com/u/termy)\ **Post date:** [November 18, 2025, 7:59pm UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/3 "2025-11-18T19:59:52Z")
是的，我想轉換 .tflite 到 .nb 感謝您的回覆！ ---
**Author:** ![Pammy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/pammy/32/936_2.png) [@Pammy](https://forum.amebaiot.com/u/Pammy)\ **Post date:** [November 20, 2025, 6:46am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/4 "2025-11-20T06:46:36Z")
您好 @termy， 請您發一封郵件給我們，您可以參考以下文件： > **[Offline AI Model Conversion Guide — Ameba Arduino AIoT Documentation v1.1...](https://ameba-doc-arduino-sdk.readthedocs-hosted.com/en/latest/ameba_pro2/amb82-mini/Other_Guides/AI_Related_Guides/Offline%20AI%20Model%20Conversion%20Guide.html)** 我們會為您開通綫下模型轉換工具的權限。取得權限後，您可以使用工具將 **.tflite** 轉換為 **.nb** 。 另外有幾點可以注意： 1. 如果您的 **.tflite** 是 quantized model，在工具中只需要進行 import 和 export 就可以了。 2. AmebaPro2 的輸入格式為 **u8** ，因此請在 `{NAME}_inputmeta.yml` 中加入 **preprocess node：IMAGE\_RGB888\_PLANAR** 。 3. AmebaPro2 目前只支援 per-tensor quantization。 ---
**Author:** ![termy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/termy/32/2099_2.png) [@termy](https://forum.amebaiot.com/u/termy)\ **Post date:** [November 20, 2025, 7:05am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/5 "2025-11-20T07:05:49Z")
您好, 已發, 感謝您 ---
**Author:** ![Austin](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/austin/32/3065_2.png) [@Austin](https://forum.amebaiot.com/u/Austin)\ **Post date:** [March 4, 2026, 9:27am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/6 "2026-03-04T09:27:27Z")
about 8735 USB Host, can you show me IDE sample code? need you support, thanks a lot ---
**Author:** ![Pammy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/pammy/32/936_2.png) [@Pammy](https://forum.amebaiot.com/u/Pammy)\ **Post date:** [March 6, 2026, 3:30am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/7 "2026-03-06T03:30:46Z")
Hi @Austin, In the FreeRTOS SDK, you can refer to the following documentation to check which USB features are supported: > **[USB — AmebaPro2's Documentation v0.1 documentation](https://ameba-doc-rtos-pro2-sdk.readthedocs-hosted.com/en/latest/application_note/19_USB.html#)** Currently, for USB Host, the AMB82 Mini only supports USB ECM, and this is available on FreeRTOS for now. Do let us know your intended use for the USB host so we can see how we can better assist you or port it to Arduino SDK. Thank you. ---
**Author:** ![Austin](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/austin/32/3065_2.png) [@Austin](https://forum.amebaiot.com/u/Austin)\ **Post date:** [March 14, 2026, 4:24am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/8 "2026-03-14T04:24:06Z")
一。在 FreeRTOS SDK 中，參考以下文件來查看支援哪些 USB 功能，但發現都是8735當USB DEVICE的說明，並無8735當USB HOST的說明或應用，可否請您支援這部份 二。我案子要用8735當USB HOST 去謮取USB CAMERA，是否能協助或將其移植到Arduino SDK。謝謝。 ---
**Author:** ![termy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/termy/32/2099_2.png) [@termy](https://forum.amebaiot.com/u/termy)\ **Post date:** [March 14, 2026, 5:02am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/9 "2026-03-14T05:02:01Z")
USB host 的部份也在 usbd 裏面哦！ Austin \<[notifications@ameba.discoursemail.com](mailto:notifications@ameba.discoursemail.com)\>於 2026年3月14日 週六，下午12:34寫道： ---
**Author:** ![Austin](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/austin/32/3065_2.png) [@Austin](https://forum.amebaiot.com/u/Austin)\ **Post date:** [March 14, 2026, 6:55am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/10 "2026-03-14T06:55:01Z")
header 有，symbol 宣告有，但 usbh\_cdc\_acm\_\* 卻沒有 您能給我連結嗎? 我來確認看看 ---
**Author:** ![termy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/termy/32/2099_2.png) [@termy](https://forum.amebaiot.com/u/termy)\ **Post date:** [March 14, 2026, 8:54am UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/11 "2026-03-14T08:54:35Z")
好的，我進辦公室後就處理 Austin \<[notifications@ameba.discoursemail.com](mailto:notifications@ameba.discoursemail.com)\>於 2026年3月14日 週六，下午3:05寫道： ---
**Author:** ![Austin](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/austin/32/3065_2.png) [@Austin](https://forum.amebaiot.com/u/Austin)\ **Post date:** [March 22, 2026, 4:17pm UTC](https://forum.amebaiot.com/t/rtl8735b-lan-usb-host-ai/4514/12 "2026-03-22T16:17:41Z")
HI Realtek Admin, still waiting for your strong support, we need USB Host sample code.