# FreeRTOS **URL:** https://forum.amebaiot.com/c/freertos/65.md [Latest](https://forum.amebaiot.com/latest.md) · [Categories](https://forum.amebaiot.com/categories.md) · [Tags](https://forum.amebaiot.com/tags.md) --- ## [About the FreeRTOS category](https://forum.amebaiot.com/t/about-the-freertos-category/4416)
**Author:** [@emch](https://forum.amebaiot.com/u/emch)\ **Replies:** 0\ **Last updated:** [October 24, 2025, 5:50am UTC](https://forum.amebaiot.com/t/about-the-freertos-category/4416 "2025-10-24T05:50:48Z")
All topics about the FreeRTOS SDK, post under the sub-categories. 讨论关于FreeRTOS SDK的所有话题，请在子分类下发帖。 --- ## [MP4 錄影檔需要第三個軌（timed metadata / user-data track）](https://forum.amebaiot.com/t/mp4-timed-metadata-user-data-track/5106)
**Author:** [@Arrow\_rick.lee](https://forum.amebaiot.com/u/Arrow_rick.lee)\ **Replies:** 1\ **Last updated:** [September 29, 2026, 5:51am UTC](https://forum.amebaiot.com/t/mp4-timed-metadata-user-data-track/5106 "2026-09-29T05:51:29Z")
我們目前用 Standard SDK 的 mmfv2 mp4\_module（component/media/muxer/mp4\_muxer.h，實作在函式庫內）錄 H.264 + G.711（mp4\_audio\_format = 1）到 SD 卡，這部分已正常運作。 ONVIF Profile G 的 Search / Replay 測試中有兩項（SEARCH-2-1-14、2-1-16）要求錄影包含一個 Metadata track… --- ## [KVS WebRTC signaling doesn't verify TLS server cert (v1 netio.c) — patch it, or should we move to v2 (kvs\_webrtc\_v2\_mmf)?](https://forum.amebaiot.com/t/kvs-webrtc-signaling-doesnt-verify-tls-server-cert-v1-netio-c-patch-it-or-should-we-move-to-v2-kvs-webrtc-v2-mmf/5055)
**Author:** [@deepakkumarbinwal](https://forum.amebaiot.com/u/deepakkumarbinwal)\ **Replies:** 2\ **Last updated:** [September 22, 2026, 9:40am UTC](https://forum.amebaiot.com/t/kvs-webrtc-signaling-doesnt-verify-tls-server-cert-v1-netio-c-patch-it-or-should-we-move-to-v2-kvs-webrtc-v2-mmf/5055 "2026-09-22T09:40:50Z")
SDK version: Ameba FreeRTOS Pro2 SDK (AmebaPro2 / RTL8735B), release 9.6\_r Issue: In the v1 KVS WebRTC example (kvs\_webrtc\_mmf, using lib\_amazon’s amazon-kinesis-video-streams-webrtc-sdk-c), the signaling connection — … --- ## [RTL8721F芯片OR支持RGB565的模组](https://forum.amebaiot.com/t/rtl8721f-or-rgb565/5076)
**Author:** [@flyme](https://forum.amebaiot.com/u/flyme)\ **Replies:** 2\ **Last updated:** [September 22, 2026, 2:39am UTC](https://forum.amebaiot.com/t/rtl8721f-or-rgb565/5076 "2026-09-22T02:39:54Z")
目前官方的淘宝网站只能买到RTL8721FAF，引脚比较少，无法支持RGB接口，请问下我从哪里可以获取（采购）到引脚比较多的同系列芯片或者模组，急用，谢谢 --- ## [RTL8735BDM是否有支援sc231 senser](https://forum.amebaiot.com/t/rtl8735bdm-sc231-senser/5077)
**Author:** [@Arrow\_rick.lee](https://forum.amebaiot.com/u/Arrow_rick.lee)\ **Replies:** 2\ **Last updated:** [September 21, 2026, 9:30am UTC](https://forum.amebaiot.com/t/rtl8735bdm-sc231-senser/5077 "2026-09-21T09:30:51Z")
請問RTL8735BDM是否有支援SC231HAI senser嗎? SDK有看到driver(sensor\_sc231h.bin)， 但沒看到IQ相關檔案(iq\_sc231h.bin & fcs\_data\_sc231h.bin )， 請問這顆senser是沒有支援嗎?還是可以申請支援調整? 謝謝~~ --- ## [\[RTL8735B / AmebaPro2\] rtsp\_transport\_init() writes past the end of transport\[\]](https://forum.amebaiot.com/t/rtl8735b-amebapro2-rtsp-transport-init-writes-past-the-end-of-transport/5028)
**Author:** [@Hsu\_Shawn](https://forum.amebaiot.com/u/Hsu_Shawn)\ **Replies:** 6\ **Last updated:** [September 15, 2026, 5:01am UTC](https://forum.amebaiot.com/t/rtl8735b-amebapro2-rtsp-transport-init-writes-past-the-end-of-transport/5028 "2026-09-15T05:01:10Z")
Date: 2026-08-28 SDK: AmebaPro2 (Arduino 4.1.0 / ameba-rtos-pro2) File: component/network/rtsp/rtsp\_api.c Summary rtsp\_transport\_init() advances its pointer with += i instead of ++, so it visits array indices 0, 1, 3,… --- ## [Is there any jpeg capture (like snapshot) example with JX37 camera?](https://forum.amebaiot.com/t/is-there-any-jpeg-capture-like-snapshot-example-with-jx37-camera/5043)
**Author:** [@sl526](https://forum.amebaiot.com/u/sl526)\ **Replies:** 7\ **Last updated:** [September 10, 2026, 2:58pm UTC](https://forum.amebaiot.com/t/is-there-any-jpeg-capture-like-snapshot-example-with-jx37-camera/5043 "2026-09-10T14:58:12Z")
thansk for support in advanced, I saw couple examples for medial control in SDK, but seem most sample are processing video streaming, is there snapshot example ? I would like to capture one frame every 20ms and store a… --- ## [AMB82-Mini USB Host CDC ECM fails to enumerate Quectel EC200U 4G modem — "ecm init fail"](https://forum.amebaiot.com/t/amb82-mini-usb-host-cdc-ecm-fails-to-enumerate-quectel-ec200u-4g-modem-ecm-init-fail/4802)
**Author:** [@Pradeep\_1](https://forum.amebaiot.com/u/Pradeep_1)\ **Replies:** 8\ **Last updated:** [September 9, 2026, 5:17am UTC](https://forum.amebaiot.com/t/amb82-mini-usb-host-cdc-ecm-fails-to-enumerate-quectel-ec200u-4g-modem-ecm-init-fail/4802 "2026-09-09T05:17:58Z")
Hi Realtek team, I am developing a 4G dashcam using AMB82-Mini ( RTL8735B) with a Quectel EC200U-CN 4G modem ( Quectel EC200U 4G Modem - CAPUF ). The modem is configured for USB CDC ECM mode via AT+QCFG=“usbnet”,1. UART… --- ## [AMB82-mini USB host CDC ECM fail to SIM7600G-H](https://forum.amebaiot.com/t/amb82-mini-usb-host-cdc-ecm-fail-to-sim7600g-h/4821)
**Author:** [@termy](https://forum.amebaiot.com/u/termy)\ **Replies:** 4\ **Last updated:** [September 4, 2026, 9:27pm UTC](https://forum.amebaiot.com/t/amb82-mini-usb-host-cdc-ecm-fail-to-sim7600g-h/4821 "2026-09-04T21:27:33Z")
Hi, Pammy, I use rtl8735b usb host to connect SIM7600G-H via CDC ECM. My SIM700G-H test on Linux vid CDC ECM is ok, so I use same method to rtl8735b and I got following message: #UECM \[ECM\] USB host ECM demo started… --- ## [RTL8721F Wi-Fi Card Mode](https://forum.amebaiot.com/t/rtl8721f-wi-fi-card-mode/4267)
**Author:** [@chumeck](https://forum.amebaiot.com/u/chumeck)\ **Replies:** 6\ **Last updated:** [September 4, 2026, 1:46pm UTC](https://forum.amebaiot.com/t/rtl8721f-wi-fi-card-mode/4267 "2026-09-04T13:46:31Z")
Hey, I would like to use RTL8721F in Wi-Fi Card Mode. How can I establish wi-fi card mode via USB in Linux? Thanks. --- ## [How to upload to cloud in remote locations](https://forum.amebaiot.com/t/how-to-upload-to-cloud-in-remote-locations/4839)
**Author:** [@boltsandbytes](https://forum.amebaiot.com/u/boltsandbytes)\ **Replies:** 5\ **Last updated:** [September 4, 2026, 10:14am UTC](https://forum.amebaiot.com/t/how-to-upload-to-cloud-in-remote-locations/4839 "2026-09-04T10:14:55Z")
Our application needs live viewing of remote cameras , is there any suggested way for the same. We saw in forum LTE dongles are not yet supported . What could be a way to integrate LTE modules with the rtl8735b . We wou… --- ## [BW16 RTL8720DN: Flashing works on FN4 (4MB) but fails on FN2 (2MB)](https://forum.amebaiot.com/t/bw16-rtl8720dn-flashing-works-on-fn4-4mb-but-fails-on-fn2-2mb/5036)
**Author:** [@neok511](https://forum.amebaiot.com/u/neok511)\ **Replies:** 2\ **Last updated:** [September 2, 2026, 9:46am UTC](https://forum.amebaiot.com/t/bw16-rtl8720dn-flashing-works-on-fn4-4mb-but-fails-on-fn2-2mb/5036 "2026-09-02T09:46:03Z")
Hi everyone, I am experimenting with the BW16 module (RTL8720DN) and ran into an issue using ImageTool.exe from the Ameba RTOS D repo. I am flashing the binaries to the standard addresses: km0\_boot\_all.bin @ 0x08000000… --- ## [Subject: DPP / Wi-Fi Easy Connect support on RTL8735B (AmebaPro2)](https://forum.amebaiot.com/t/subject-dpp-wi-fi-easy-connect-support-on-rtl8735b-amebapro2/5030)
**Author:** [@inxnik](https://forum.amebaiot.com/u/inxnik)\ **Replies:** 2\ **Last updated:** [September 1, 2026, 3:39am UTC](https://forum.amebaiot.com/t/subject-dpp-wi-fi-easy-connect-support-on-rtl8735b-amebapro2/5030 "2026-09-01T03:39:21Z")
Hello Realtek team, We are developing a Wi-Fi provisioning flow for an RTL8735B / AmebaPro2 device. Our intended flow is: The Android app connects to the device’s temporary SoftAP. It obtains a DPP bootstrap URI thro… --- ## [请问RTL8711FLM 支持wifi mesh功能吗](https://forum.amebaiot.com/t/rtl8711flm-wifi-mesh/5010)
**Author:** [@Gsy](https://forum.amebaiot.com/u/Gsy)\ **Replies:** 2\ **Last updated:** [August 27, 2026, 6:53am UTC](https://forum.amebaiot.com/t/rtl8711flm-wifi-mesh/5010 "2026-08-27T06:53:10Z")
请问RTL8711FLM 支持wifi mesh功能吗 --- ## [AMB82-mini - trying to use BLE to turn WiFi on and off doesn't work](https://forum.amebaiot.com/t/amb82-mini-trying-to-use-ble-to-turn-wifi-on-and-off-doesnt-work/4403)
**Author:** [@Barryn56](https://forum.amebaiot.com/u/Barryn56)\ **Replies:** 10\ **Last updated:** [August 27, 2026, 5:43am UTC](https://forum.amebaiot.com/t/amb82-mini-trying-to-use-ble-to-turn-wifi-on-and-off-doesnt-work/4403 "2026-08-27T05:43:18Z")
To save power in a battery operated device, I want to be able to turn wifi on and off and planned to use BLE to do that. However, it appears that these are linked in AMB82-mini, so you can’t have BLE working alone. If wi… --- ## [RTL8735B (AmebaPro2) WiFi STA drops incoming multicast after WLAN update — worked before](https://forum.amebaiot.com/t/rtl8735b-amebapro2-wifi-sta-drops-incoming-multicast-after-wlan-update-worked-before/5016)
**Author:** [@yugandhar](https://forum.amebaiot.com/u/yugandhar)\ **Replies:** 2\ **Last updated:** [August 26, 2026, 8:51am UTC](https://forum.amebaiot.com/t/rtl8735b-amebapro2-wifi-sta-drops-incoming-multicast-after-wlan-update-worked-before/5016 "2026-08-26T08:51:42Z")
Hi, Our app runs a standard UDP multicast listener (ONVIF WS-Discovery, 239.255.255.250:3702). Over WiFi STA, multicast packets never reach it — no matter what, even with a confirmed successful IP\_ADD\_MEMBERSHIP join. S… --- ## [Need latest VOE and Sensor drivers source code](https://forum.amebaiot.com/t/need-latest-voe-and-sensor-drivers-source-code/4748)
**Author:** [@yugandhar](https://forum.amebaiot.com/u/yugandhar)\ **Replies:** 11\ **Last updated:** [August 18, 2026, 2:22am UTC](https://forum.amebaiot.com/t/need-latest-voe-and-sensor-drivers-source-code/4748 "2026-08-18T02:22:25Z")
Hi, I downloaded camera sensor driver source code from Camera Module Bring Up Guide – Realtek IoT/Wi-Fi MCU Solutions and compiled voe.bin and sensor\_f37.bin using pdf guide. I copied both files to folder ameba-rtos-pro… --- ## [Ameba Pro2 Font & Bitmap Tool Link / Documentation](https://forum.amebaiot.com/t/ameba-pro2-font-bitmap-tool-link-documentation/4406)
**Author:** [@ravinder](https://forum.amebaiot.com/u/ravinder)\ **Replies:** 32\ **Last updated:** [August 13, 2026, 7:50am UTC](https://forum.amebaiot.com/t/ameba-pro2-font-bitmap-tool-link-documentation/4406 "2026-08-13T07:50:37Z")
Hi all, I’m working with the Ameba Pro2 SDK and need to generate custom fonts and bitmaps for OSD. I’ve seen references to a Font Tool and a Bitmap Generate Tool in internal notes/images, but I cannot locate these tools… --- ## [No streaming video and audio after some seconds](https://forum.amebaiot.com/t/no-streaming-video-and-audio-after-some-seconds/2648)
**Author:** [@stefano.masotti](https://forum.amebaiot.com/u/stefano.masotti)\ **Replies:** 13\ **Last updated:** [July 29, 2026, 1:37am UTC](https://forum.amebaiot.com/t/no-streaming-video-and-audio-after-some-seconds/2648 "2026-07-29T01:37:06Z")
I’m using an ameba mini for streaming video and audio. I have uploaded the example configuration. Video and audio are only sent for a few seconds, then I don’t receive any video or audio. I can ping the card regularly, t… --- ## [AMB82 Mini - USB-UVC 攝影機 for macOS](https://forum.amebaiot.com/t/amb82-mini-usb-uvc-for-macos/4956)
**Author:** [@t112c53029](https://forum.amebaiot.com/u/t112c53029)\ **Replies:** 6\ **Last updated:** [July 22, 2026, 7:04am UTC](https://forum.amebaiot.com/t/amb82-mini-usb-uvc-for-macos/4956 "2026-07-22T07:04:42Z")
請問Ameba82 mini 的 free rtos sdk uvc example之後會打算支援macos?我在mac只有讀到相機，但vlc或內建facetime都沒有畫面。我在上面只找到目前只支援windows potplayer 或microsoft teams 、googlemeet 等平台 --- ## [Please recommend an IDE for FreeRTOS development and possible integration with AI tools](https://forum.amebaiot.com/t/please-recommend-an-ide-for-freertos-development-and-possible-integration-with-ai-tools/4958)
**Author:** [@kpyeo](https://forum.amebaiot.com/u/kpyeo)\ **Replies:** 1\ **Last updated:** [July 21, 2026, 10:02am UTC](https://forum.amebaiot.com/t/please-recommend-an-ide-for-freertos-development-and-possible-integration-with-ai-tools/4958 "2026-07-21T10:02:54Z")
Hi, I am using windows and is starting development on the AMB82MINI with FreeRTOS. Just want to ask if there is a recommend IDE to use where there in integration with AI tools like Claude Code. Thanks in advance! --- ## [求RTL8721DCM的EVB 板子的board资料，官网没收到](https://forum.amebaiot.com/t/rtl8721dcm-evb-board/4952)
**Author:** [@jeck\_wang](https://forum.amebaiot.com/u/jeck_wang)\ **Replies:** 3\ **Last updated:** [July 17, 2026, 1:29am UTC](https://forum.amebaiot.com/t/rtl8721dcm-evb-board/4952 "2026-07-17T01:29:54Z")
如下图，这个RTL8721DCM的EVB 板子的board资料没有啊？谁能提供？官网都是RTL8721DAF的，没有这个板子的资料 --- ## [關於 AIVoice 晶片支援問題](https://forum.amebaiot.com/t/aivoice/4934)
**Author:** [@rick-kh](https://forum.amebaiot.com/u/rick-kh)\ **Replies:** 6\ **Last updated:** [July 16, 2026, 4:10am UTC](https://forum.amebaiot.com/t/aivoice/4934 "2026-07-16T04:10:09Z")
請問在 Github 的 ameba-aivoice 資料庫內容提到的支援晶片並未包含 RTL8735B，那 RTL8735B 可以使用嗎？或是原廠會增加支援 RTL8735B 晶片進去嗎？ 想要在 RTL8735B 使用離線語音關鍵詞喚醒及關鍵詞指令功能，請問有哪個sdk可以參考使用呢？ --- ## [Offline FreeRTOS Build & Flash Dashboard for AmebaPro2 + Fix for “UART Download UCFG Fail”](https://forum.amebaiot.com/t/offline-freertos-build-flash-dashboard-for-amebapro2-fix-for-uart-download-ucfg-fail/4931)
**Author:** [@inxnik](https://forum.amebaiot.com/u/inxnik)\ **Replies:** 1\ **Last updated:** [July 14, 2026, 3:35am UTC](https://forum.amebaiot.com/t/offline-freertos-build-flash-dashboard-for-amebapro2-fix-for-uart-download-ucfg-fail/4931 "2026-07-14T03:35:32Z")
Hi everyone, I ran into some issues flashing images onto the AmebaPRO2-mini. While investigating the root cause, I ended up building a small dashboard to automate the compilation and deployment of FreeRTOS builds to the… --- ## [Ameba-rtos-pro2 toolchain](https://forum.amebaiot.com/t/ameba-rtos-pro2-toolchain/4946)
**Author:** [@t112c53029](https://forum.amebaiot.com/u/t112c53029)\ **Replies:** 1\ **Last updated:** [July 14, 2026, 3:22am UTC](https://forum.amebaiot.com/t/ameba-rtos-pro2-toolchain/4946 "2026-07-14T03:22:50Z")
想請問有計劃未來會有support apple M系列晶片 arm版本的asdk-10.3.0 toolchain嗎?沒事了我用你們提供的macOS asdk-10.3.0-darwin-newlib-build-3659-x86\_64這個toolchain結合apple的Rosetta 編譯成功了 --- ## [IMX662 I2C ADR](https://forum.amebaiot.com/t/imx662-i2c-adr/4916)
**Author:** [@Van\_An\_Vo](https://forum.amebaiot.com/u/Van_An_Vo)\ **Replies:** 3\ **Last updated:** [June 29, 2026, 6:55am UTC](https://forum.amebaiot.com/t/imx662-i2c-adr/4916 "2026-06-29T06:55:48Z")
We are currently customizing a camera module with the Sony IMX662 sensor, but we cannot find it in the ameba\_rtos\_pro2 library. Could you please let us know what the I²C address of this sensor is? We truly don’t know wh… --- ## [Ameba-rtos 编译报错stdint.h找不到](https://forum.amebaiot.com/t/ameba-rtos-stdint-h/4928)
**Author:** [@yhb](https://forum.amebaiot.com/u/yhb)\ **Replies:** 2\ **Last updated:** [June 26, 2026, 12:24am UTC](https://forum.amebaiot.com/t/ameba-rtos-stdint-h/4928 "2026-06-26T00:24:13Z")
ubuntu环境，ameba-rtos的v1.2分支，拉取的全新代码。 按照文档依次执行 source env.sh ameba.py soc RTL8711F ameba.py build报错stdint.h找不到。 --- ## [Channel plan 0x2A for Australia shows no channels, unable to connect to 5G SSID](https://forum.amebaiot.com/t/channel-plan-0x2a-for-australia-shows-no-channels-unable-to-connect-to-5g-ssid/4854)
**Author:** [@airista\_islavov](https://forum.amebaiot.com/u/airista_islavov)\ **Replies:** 1\ **Last updated:** [June 4, 2026, 7:37am UTC](https://forum.amebaiot.com/t/channel-plan-0x2a-for-australia-shows-no-channels-unable-to-connect-to-5g-ssid/4854 "2026-06-04T07:37:25Z")
We were running tests with a client in Australia, they are using our new tags with uBlox module (/w RTL872x on board) and their environment is 5G. As we discussed before, setting the country using wifi\_set\_country became… --- ## [Text OSD with 31+ characters has issues](https://forum.amebaiot.com/t/text-osd-with-31-characters-has-issues/4852)
**Author:** [@yugandhar](https://forum.amebaiot.com/u/yugandhar)\ **Replies:** 8\ **Last updated:** [June 2, 2026, 1:36am UTC](https://forum.amebaiot.com/t/text-osd-with-31-characters-has-issues/4852 "2026-06-02T01:36:21Z")
Hi, For rts\_osd2\_type\_text when the string buffer has more than 31 characters, the trailing characters are not printing sometimes and total text ignored if more than 36+ characters are available. The OSD demo provided a… --- ## [BW16 module PA15 not working as a GPIO - suspect External 32k oscillator is grabbing it](https://forum.amebaiot.com/t/bw16-module-pa15-not-working-as-a-gpio-suspect-external-32k-oscillator-is-grabbing-it/4883)
**Author:** [@boatbodger](https://forum.amebaiot.com/u/boatbodger)\ **Replies:** 3\ **Last updated:** [June 1, 2026, 11:27am UTC](https://forum.amebaiot.com/t/bw16-module-pa15-not-working-as-a-gpio-suspect-external-32k-oscillator-is-grabbing-it/4883 "2026-06-01T11:27:16Z")
I am finding (as a previous forum user) that if I try to use PA15 as a GPIO, it does not work. I am configuring PA15 the same way as other GPIO pins, enabling the pull up resistor, so that the pin can be shorted to grou… [Next page](https://forum.amebaiot.com/c/freertos/65.md?page=1)