Release Notes¶

Official IPRO SDK releases, newest first; the current release is V2.2.1. Downloads and the release notes of each version are on GitHub Releases; the SDK package itself is described in the README.md at its root. The Windows online installer, Online Setup, is listed here too (currently 3.6.0); it is downloaded from ipro-sdk-releases.

IPRO-SDK-V2.2.1¶

Latest Released 2026-11-10 · GitHub release

Patch release of V2.2.0 with the same 40 FreeRTOS applications. The download is IPRO-SDK-V2.2.1.tar.gz; its SHA-256 is on the release page. The rest of the V2.2.0 notes, its known issues included, applies to V2.2.1.

Fixed

• IPRO6S soft-AP: on parts without a factory MAC address, such as the IPRO6S EVK, wifi_ap_start failed without a message. The station and the access point now share one random address per boot, the access point's with the lowest bit flipped. The fix is in the prebuilt libipro_os_adapter.a of ipro6_demo (defconfig_ipro6_lpwifi) and ipro6_if_wifi (defconfig_ipro6_sdio, defconfig_ipro6_usb). The steps are on IPRO6S.
• make_reef_ota.sh in ipro_ble_remote takes the newest boot2 in the IntelProCube folder (v0.6.0 in 0.7.0.1), or the file in IPRO_BOOT2; the script no longer needs changing first.
• Package README: IntelProCube 0.7.0.1 from GitHub with download and checksum steps, and the IPRO6S EVK flash command (--chip-variant IPRO6S, partition_cfg_fw_direct.toml).
• Zephyr: zephyr/subsys/net/ipro_wifi/net_al_zephyr.c matches the L2 socket interface of the lwIP port in the package; IPRO6S is still not supported under Zephyr.

Built and checked from the package before release: the 36 IPRO7 FreeRTOS applications, seven IPRO6S configurations and the Zephyr samples. On the boards: the IPRO6S EVK scans and runs a soft-AP that a computer joins and gets a DHCP lease from, built and flashed on macOS and on Windows; reef selftest passes on the IPRO7AI Reef EVK.

Known issues¶

• IPRO Workbench 0.1.0 and IPRO6S: Workbench flashes IPRO6S images without the IPRO6S partition table, and the board does not boot. Use IPRO Workbench 0.1.1 or later (see IPRO6S EVK), or flash IPRO6S with the IntelProCube command line, as on IPRO6S.

IPRO-SDK-V2.2.0¶

Released 2026-11-03 · GitHub release

Dual-chip release for IPRO7 / IPRO7AI and IPRO6S, replacing V2.1.0. 40 FreeRTOS applications: 37 for IPRO7, 3 for IPRO6S. The download is IPRO-SDK-V2.2.0.tar.gz; its SHA-256 is on the release page.

New and changed

• IPRO6S applications are back: ipro6_demo (Wi-Fi 6 station / soft-AP, DTIM low power), ipro6_if_wifi (Wi-Fi bridge to a host over SDIO or USB) and ipro6_fmac (FullMAC firmware and its flash loader). The Wi-Fi MAC, coexistence and RF libraries are prebuilt once per shipped defconfig_*, so each configuration links the libraries built for it. The firmware of the Reef's FIN Wi-Fi card is ipro6_if_wifi with defconfig_ipro6_sdio; see IPRO6S.
• New application ipro_reef_teach: Edge AI firmware for the IPRO7AI Reef EVK with three Teach tools: image (USB camera and classifier), voice (who is speaking) and sensor (any sensor). One mode is picked at boot, each with its own USB identity, driven from IPRO AI Studio; tools/teach_web/ does image Teach in the browser. IPRO AI Studio is downloaded from GitHub.
• IPRO Edge AI platform V2.0 in components/ai: runtime, a model store with one slot per tool, input sources, preprocessing and an application framework; a bounded NPU wait that resets the block and enters a fail-closed fault state; the Edge AI firmware arms the AON watchdog (download mode turns it off). The CPU layer graph no longer reads past the last layer record.
• Whole-chip reset: hal_reboot_full() resets the whole chip through the AON watchdog, always-on domain included; with CONFIG_APP_WATCHDOG, platform_init() arms the watchdog from the start of the boot. ipro_reef_teach switches tools with it, which fixes a Reef with a camera hanging on the next boot after leaving image mode until it was reset.
• New application ipro7_jpeg_decode: JPEG to RGB565 / RGB888 in software (TJpgDec), with a format probe and support for camera MJPEG frames without Huffman tables; IPRO7's MJPEG block only encodes. On the Reef use defconfig_reef; the console runs at 921600 baud.
• ipro7ai_reef_demo: mic usb turns the Reef into a USB microphone (16 kHz, rate-converted from the PDM clock); mic sdrec records WAV files to the SD card.
• build_freertos.sh: flash picks --chip-variant from the configuration (IPRO7AI for the Reef and the IPRO7AI EVK), overridable with -c or IPRO_CHIP_VARIANT; -P or IPRO_FLASH_PT passes a partition table; the reboot_dl that flash sends, monitor and test use the application's own console baud rate. See Tool Command Lines.
• BLE controller: the 16 IPRO7 prebuilt libraries are rebuilt from this release's source; ipro_ble_ctlr_heap_watermarks() and ipro_ble_ctlr_link_diag_start(), already declared in the header, now link.
• USB device: fixes an RX FIFO overflow, detaches on de-init, fixes CDC-ECM framing, and the USB console attaches reliably. lwIP: sys_mbox_trypost from an interrupt takes the FromISR path. Opus builds against its own arch.h.
• BSP: PLL-off system clocks for BLE-only applications; CONFIG_OCRAM_NORET_SCRATCH_ONLY keeps RAM state inside the PDS-retained 64 KB; hal_lp_enter_fastboot() enters HBN; security engine HAL v2 with a PSA accelerator driver.
• The sample applications carry no built-in network credentials.

Applications

• 40 in all: 37 for IPRO7, 3 for IPRO6S. Compared with V2.1.0, ipro_reef_teach, ipro7_jpeg_decode, ipro6_demo, ipro6_if_wifi and ipro6_fmac are new, and the speaker-recognition application of V2.1.0 is renamed ipro_speaker_recog.
• Nine applications have configurations for the IPRO7AI Reef EVK; the list and build commands are in the FAQ and on IPRO7AI Reef EVK.

Built and checked from the package before release: the 36 IPRO7 FreeRTOS applications (ipro_agora_sentino needs the AOSL core first), seven IPRO6S configurations, and the Zephyr samples for ipro7_evb and ipro7ai_evk.

Not included

• The IntelProCube flash tool: download 0.7.0.1 from GitHub; see Set Up Your Host.
• The RISC-V toolchain: contact INTELPRO.
• IPRO AI Studio, which includes the model converter: download it from GitHub.
• An IPRO6S BLE controller library and BLE / BR/EDR applications for IPRO6S; the IPRO6S applications are Wi-Fi only.
• Matter; Thread for FreeRTOS applications (Thread is available under Zephyr).
• Setup for on-target debugging (OpenOCD / GDB), a crash-dump host tool, the board test script, menuconfig.
• Zephyr: no Reef board; IPRO6S is not supported; no low-power modes and no drivers for the display, camera, audio codec, USB, SD host, Ethernet or NPU.
• The AOSL core and the Sentino device triple that ipro_agora_sentino needs: AOSL comes from GitHub, as the application's README describes.

Known issues and notes¶

• Comments in the Reef board header: the comments in bsp/board/ipro7/ipro7ai_reef_board_config.h describe the expansion header and jumpers of the earlier (V3.0) carrier; the pin definitions match V4.0. For the V4.0 header, switches and jumpers, IPRO7AI Reef EVK on this site is the reference.
• Two IPRO6S configurations have no prebuilt library set: ipro6_demo/defconfig_ipro6_lpwifi_ping and ipro6_fmac/defconfig_ipro6_fmac_ap ship in the package but do not set CONFIG_WIRELESS_LIB_VARIANT, and they are not among the configurations checked for the release. Use the configurations listed on the IPRO6S page.
• ipro_le_audio_headset: the application's README marks audio rendering as currently disabled and media streaming as not yet validated; read its status section before relying on audio output.
• ipro_throughput_test documents: the README and OPERATION_MANUAL.md mention a demo application, an Android app and controller build options (such as CONFIG_BTBLECONTROLLER_LIB and link8) that are not in this release; build and flash as in the README's Build / Flash sections and BLE Throughput Test.
• Waiting after a crash: ipro7ai_reef_demo and ipro_reef_teach set CONFIG_EXCEPTION_DUMP=y, so after a crash they keep printing ==DUMP_READY:2000000== while waiting for a host tool that does not ship; save the diagnostics and press SW2, or set it to n. See Crash analysis.
• build_freertos.sh flashes IPRO7 only: it always passes --chipname ipro7 and cannot pass --boot2 or --mfg; flash IPRO6S images, the OTA build of ipro_ble_remote and ipro_reef_teach with IntelProCube directly.
• Items named in READMEs but not shipped: some component and application READMEs refer to applications, tools or documents that are not in this release (for example the board user guide and the Edge AI programming guide). Documents are available from INTELPRO; see Documents.

Online Setup 3.6.0¶

Released 2026-11-04 · Download the installer

The Windows online installer. When it installs SDK V2.2.0 it fixes the SDK's Windows build issues: recognising the IPRO toolchain (the probe compiled /dev/null, so every Windows build fell back to the standard GCC flags and the non-DSP prebuilt libraries), the build message that breaks Ninja under CMake 4, and the serial console; it also adds build_freertos.ps1 for PowerShell. SDK only and Full now install the same SDK, prepared for the toolchain it is built with. An SDK or a toolchain can be added to an existing environment without overwriting anything. The toolchain is still GCC 13.1.1 and the Extension stays at 3.3.0. See Windows Setup & VS Code.

IPRO-SDK-V2.1.0¶

Released 2026-10-16 · GitHub release

Adds Zephyr RTOS support; the FreeRTOS applications target IPRO7, 35 in all.

New and changed

• Zephyr RTOS: the SDK is also a Zephyr v4.4.0 module (zephyr/module.yml, west.yml) for ipro7_evb and ipro7ai_evk: drivers for GPIO, UART, SPI, I2C, PWM, ADC, DAC, counter and RTC, watchdog, flash, DMA, entropy, I2S / PDM and more; Bluetooth LE (Zephyr host on the IPRO BLE controller prebuilt libraries); IEEE 802.15.4 and OpenThread; MCUboot through sysbuild; and image upload over BLE (MCUmgr SMP). Start with tools/zephyr/bootstrap.sh; see Zephyr RTOS.
• The RF driver and the IEEE 802.15.4 MAC ship as prebuilt libraries for Zephyr (components/wireless/rf/ipro7_rf/lib/zephyr/, components/wireless/ieee802154/lib/zephyr/).
• New application ipro_agora_sentino: Sentino cloud AI voice on the IPRO7AI Reef EVK, with BLE provisioning, Wi-Fi through the IPRO6S FIN card, MQTT and Agora RTC. It ships with the prebuilt Agora RTC SDK and the IPRO7 port of AOSL; the AOSL core, the device triple issued by the Sentino platform and the FIN card firmware are obtained separately, as the application's README describes.
• IPRO7AI Reef EVK crystal trim: Reef builds set the RF crystal capcode to 95 by default and apply it at boot and at every RF init (CONFIG_IPRO7_XTAL_CAPCODE; an explicit value in the application config wins). The prebuilt RF and IEEE 802.15.4 libraries take the value from the application. Under Zephyr, set CONFIG_SOC_IPRO7_XTAL_CAPCODE=95 on the Reef.
• Tools: adds tools/serial_monitor.py (--timeout 0 runs until Ctrl-C; high baud rates also work on Linux) and tools/zephyr/. build_freertos.sh and the Zephyr scripts take the serial port from -p / IPRO_SERIAL_PORT, or use the only USB serial port present; the flash tool comes from IPRO_FLASH_TOOL or PATH.
• The 16 IPRO7 prebuilt libraries of the IPRO BLE controller are updated.

Applications

• 35 FreeRTOS applications. Compared with V2.0.9, ipro_agora_sentino is new.
• Compared with V2.0.1, seven are new: ipro7ai_reef_demo, ipro7ai_evk_launcher, ipro7ai_evk_person_detect, ipro7ai_evk_rps, ipro7_uvc_cam, ipro_ai_link and ipro_agora_sentino; the three IPRO6S applications (ipro6_btdm_phyrf, ipro6_demo, ipro6_if_wifi) are no longer provided.

Not included

• IPRO6S applications, BLE controller libraries and ipro6_rf: the package README still mentions IPRO6S, but this release has none of it; for IPRO6S development V2.0.1 was the release to use then; from V2.2.0 the IPRO6S applications are back, see IPRO6S.
• The IPRO6S-side Wi-Fi firmware, including the Reef's FIN card; contact INTELPRO.
• Matter; Thread for FreeRTOS applications (Thread is available under Zephyr); model conversion tools.
• The IntelProCube flash tool and the RISC-V toolchain, which are obtained separately.

Known limitations

• ipro_ble_remote/defconfig_lowpower switches the BLE controller to a source build and cannot be built from this package.
• build_freertos.sh flash passes neither --chip-variant nor --pt, and monitor always uses 115200 baud; for IPRO7AI boards and 921600-baud applications use the tools directly. Improved in V2.2.0; see IPRO-SDK-V2.2.0.
• Zephyr has no low-power modes yet and no drivers for the display, camera, audio codec, USB, SD host, Ethernet or NPU, and no board definition for the IPRO7AI Reef EVK.

The build and on-board checks done for the release are listed on its GitHub release page.

IPRO-SDK-V2.0.9¶

Released 2026-10-15 · GitHub release

The IPRO7 release before V2.1.0: 34 applications, no Zephyr.

• New IPRO7AI Reef EVK out-of-box firmware ipro7ai_reef_demo: LED, keys, speaker and headphone, microphone, SD card and OV5640 / OV2640 camera; defconfig_wifi_ipro6s adds Wi-Fi through the IPRO6S FIN card and an RTSP camera stream.
• New IPRO7AI EVK applications ipro7ai_evk_launcher, ipro7ai_evk_rps and ipro7ai_evk_person_detect, built on the new EVK board library components/board/ipro7ai_evk.
• New ipro7_uvc_cam (USB UVC camera) and ipro_ai_link (Run on board for IPRO AI Studio).
• The AI library libai.a can load models from the SD card; prebuilt libraries contain no build-machine paths.
• IPRO7 applications only; for IPRO6S development use V2.0.1.

Online Setup 3.5.0¶

Released 2026-09-10 · Download the installer

Discovers the official IPRO-SDK releases on every run, accepts .tar.gz SDK archives, and prepares the prebuilt libraries for the older Windows linker in full installs.

IPRO-SDK-V2.0.1¶

Released 2026-09-09 · GitHub release

Maintenance release for continuous BLE audio, following the V2.0 expansion to IPRO6S and 31 application projects.

• Fixes Bluetooth host queue publication atomicity during sustained transfers.
• PDM recording supports up to 4 logical hours with a 240-second PSRAM ring and automatic 30-second chunks; Android keeps a high connection priority between chunks.
• PDM uses a link2 controller, a one-connection host and 2M PHY; EVB / EVK configurations and Android companion source are included.
• Adds IPRO6S Wi-Fi / BR/EDR references, both SDIO link endpoints, NPU / TFLM examples and bundled .inm / .tflite models.
• Includes ipro_unit_test and Linux x86-64 CMake; serial_monitor.py and PREBUILT-ARCHIVES-STRIPPED.txt from 1.2.1 are absent.

The published release reports 31/31 application builds and a five-minute recording test with a Pixel 7a and an IPRO7AI board: ten 960,000-byte chunks, no lost packets or sequence gaps, a successful ring wrap, and steady transfer at 84.2–91.2 KB/s. These results apply to that test setup and are not a guarantee for every board or phone.

Online Installer 3.4.0¶

Download the installer

Adds a dynamic public catalog, independent package versions, compatibility selection for full installs, and cached offline installation. The Extension stays at 3.3.0. This version installs only the SDKs registered in its catalog (1.2.1 is stable); to install SDK V2.2.0, use 3.6.0, see Windows Setup & VS Code.

Development tools: Windows installer / Extension 3.3.0¶

The installer and the Extension are versioned independently; this release goes with SDK V1.2.1. The Windows wizard offers Full, Extension only and SDK only modes. The Extension adds component updates from VSIX, SDK ZIP / folder and Git snapshots, alongside Control Center and its built-in Windows serial monitor. See Windows Setup & VS Code and VS Code Extension.

IPRO-IPRO7-SDK-V1.2.1¶

Released 2026-09-08 · GitHub release

• Zephyr 4.4 host in ipro_bt_host; IPRO BLE controller (prebuilt library) in ipro_ble_controller.
• 16 controller archives: four ACL variants × two feature profiles × debug / release. Controller sources are not included.
• IPRO7-side ipronet_host and sdiowifi components, plus ipro7_sdio_wifi; the matching IPRO6S firmware is obtained separately.
• AI inference ships as components/ai/lib/libai.a with headers; no .blai model files are included.
• tools/serial_monitor.py is included; the flash tool, board-test script, crash parser and OpenOCD configuration are separate.
• Per PREBUILT-ARCHIVES-STRIPPED.txt, debug information was removed from the AI, ISP, RF, LC3 and low-power framework archives for compatibility with binutils older than 2.41; source-level stepping inside those libraries is not possible.

The V1.0.1 image-capture, standalone BIS source / sink, cloud audio gateway and voice-assistant applications are not included in this release.

IPROREL-IPRO7-V1.0.1¶

Released 2026-03-13 · Platform: IPRO7 (RISC-V RV32IMAFC)

The full IPRO7 SDK delivery package combining platform, BLE, ISP and LE Audio, with 9 reference applications, a Zephyr-based BLE host, prebuilt linkN controller libraries and a unified build system.

• BLE stack: Zephyr-based host (GAP, GATT, L2CAP, SMP, ISO, LE Audio); IPRO BLE controller prebuilt libraries in standard BLE (link1_periph, link1–link8), LE Audio (link1_leaudio, link2_leaudio), BLE 5.4 + LE Audio (link1_leaudio_53_54, link2_leaudio_53_54, link4_leaudio_53_54) and BLE 5.3 / 5.4 (link1_53, link1_54, link2_54) variants.
• Prebuilt libraries: isp_algorithm (ISP image processing), ipro7_rf (RF driver), liblc3 (LC3 codec), lp_framework (low-power framework).
• Known limitations: BLE controller sources are not included, only the prebuilt linkN variants; CONFIG_BLE_FORCE_SOURCE_BUILD is not supported.

IPRO-BLE-SDK-V0.0.1¶

Released 2026-02-12 · Platform: IPRO7 (RISC-V RV32IMAFC)

The first official release of the IPRO BLE SDK: a BLE 5.4 and LE Audio development environment with 10 applications, a Zephyr-based BLE host, prebuilt controller libraries and a unified build system.

• BLE applications: BLE Remote (GATT services demo), Throughput Test (bidirectional throughput), HID Keyboard (HOGP), Transparent Data (transparent transfer with AT commands).
• LE Audio applications: LE Audio Headset (GAF / BAP unicast and broadcast), BIS Broadcast Source (Auracast-compatible), BIS Broadcast Sink (BASE parsing and resampling), Walkie-Talkie (BIS-based push-to-talk).
• ESL applications: ESL Tag (Bluetooth ESL Profile tag), ESL Gateway (access point for ESL tags).
• BLE stack: IPRO BLE controller prebuilt libraries (linkN variants; link2_54 added in this release), prebuilt RF driver (ipro7_rf) and LC3 codec (liblc3); the legacy btprofile component was removed and applications use the Zephyr bt_* APIs throughout.
• Build system: unified CLI ./build_freertos.sh <app> build flash monitor, automatic detection of vendor and standard GCC toolchains, Kconfig-based configuration.
• Requirements: RISC-V toolchain in /opt/toolchain/riscv_ipro7/, CMake 3.19 or later, Ninja, Python 3.8 or later.
• Known limitations: controller sources are not included; ipro_blecontroller_test (UART HCI mode) is not included because it needs controller sources; CONFIG_BLE_FORCE_SOURCE_BUILD is not supported.